diff options
Diffstat (limited to 'lib')
30 files changed, 7911 insertions, 0 deletions
diff --git a/lib/tevent/Makefile.in b/lib/tevent/Makefile.in new file mode 100644 index 0000000000..4257119849 --- /dev/null +++ b/lib/tevent/Makefile.in @@ -0,0 +1,81 @@ +#!gmake +# +# Makefile for tdb directory +# + +CC = @CC@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ +bindir = @bindir@ +includedir = @includedir@ +libdir = @libdir@ +VPATH = @srcdir@:@libreplacedir@ +srcdir = @srcdir@ +builddir = @builddir@ +sharedbuilddir = @sharedbuilddir@ +INSTALLCMD = @INSTALL@ +CPPFLAGS = @CPPFLAGS@ -I$(srcdir)/include -Iinclude -I. +LDFLAGS = @LDFLAGS@ +EXEEXT = @EXEEXT@ +SHLD = @SHLD@ +SHLD_FLAGS = @SHLD_FLAGS@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PICFLAG = @PICFLAG@ +SHLIBEXT = @SHLIBEXT@ +SWIG = swig +PYTHON = @PYTHON@ +PYTHON_CONFIG = @PYTHON_CONFIG@ +PYTHON_BUILD_TARGET = @PYTHON_BUILD_TARGET@ +PYTHON_INSTALL_TARGET = @PYTHON_INSTALL_TARGET@ +PYTHON_CHECK_TARGET = @PYTHON_CHECK_TARGET@ +LIB_PATH_VAR = @LIB_PATH_VAR@ +eventsdir = @eventsdir@ + +TALLOC_CFLAGS = @TALLOC_CFLAGS@ +TALLOC_LDFLAGS = @TALLOC_CFLAGS@ +TALLOC_LIBS = @TALLOC_LIBS@ + +EVENTS_CFLAGS = @EVENTS_CFLAGS@ +EVENTS_LDFLAGS = @EVENTS_CFLAGS@ +EVENTS_LIBS = @EVENTS_LIBS@ + +CFLAGS = $(CPPFLAGS) $(TALLOC_CFLAGS) $(EVENTS_CFLAGS) @CFLAGS@ +LDFLAGS = $(TALLOC_LDFLAGS) $(EVENTS_LDFLAGS) @LDFLAGS@ +LIBS = $(TALLOC_LIBS) $(EVENTS_LIBS) @LIBS@ + +EVENTS_OBJ = @EVENTS_OBJ@ @LIBREPLACEOBJ@ + +default: all + +include $(eventsdir)/events.mk +include $(eventsdir)/rules.mk + +all:: showflags dirs $(PROGS) $(EVENTS_SOLIB) libevents.a $(PYTHON_BUILD_TARGET) + +install:: all +$(EVENTS_SOLIB): $(EVENTS_OBJ) + $(SHLD) $(SHLD_FLAGS) $(LDFLAGS) $(LIBS) -o $@ $(EVENTS_OBJ) @SONAMEFLAG@$(EVENTS_SONAME) + +shared-build: all + ${INSTALLCMD} -d $(sharedbuilddir)/lib + ${INSTALLCMD} -m 644 libevents.a $(sharedbuilddir)/lib + ${INSTALLCMD} -m 755 $(EVENTS_SOLIB) $(sharedbuilddir)/lib + ln -sf $(EVENTS_SOLIB) $(sharedbuilddir)/lib/$(EVENTS_SONAME) + ln -sf $(EVENTS_SOLIB) $(sharedbuilddir)/lib/libevents.so + ${INSTALLCMD} -d $(sharedbuilddir)/include + ${INSTALLCMD} -m 644 $(srcdir)/events.h $(sharedbuilddir)/include + +check: test + +test:: $(PYTHON_CHECK_TARGET) +installcheck:: test install + +clean:: + rm -f *.o *.a */*.o + +distclean:: clean + rm -f config.log config.status include/config.h config.cache + rm -f Makefile + +realdistclean:: distclean + rm -f configure include/config.h.in diff --git a/lib/tevent/autogen.sh b/lib/tevent/autogen.sh new file mode 100755 index 0000000000..fec05f54d4 --- /dev/null +++ b/lib/tevent/autogen.sh @@ -0,0 +1,16 @@ +#!/bin/sh + +rm -rf autom4te.cache +rm -f configure config.h.in + +IPATHS="-I libreplace -I lib/replace -I ../libreplace -I ../replace -I ../../../lib/replace" +autoconf $IPATHS || exit 1 +autoheader $IPATHS || exit 1 + +rm -rf autom4te.cache + +swig -O -Wall -python -keyword events.i # Ignore errors for now + +echo "Now run ./configure and then make." +exit 0 + diff --git a/lib/tevent/build_macros.m4 b/lib/tevent/build_macros.m4 new file mode 100644 index 0000000000..c036668cd1 --- /dev/null +++ b/lib/tevent/build_macros.m4 @@ -0,0 +1,14 @@ +AC_DEFUN(BUILD_WITH_SHARED_BUILD_DIR, + [ AC_ARG_WITH([shared-build-dir], + [AC_HELP_STRING([--with-shared-build-dir=DIR], + [temporary build directory where libraries are installed [$srcdir/sharedbuild]])]) + + sharedbuilddir="$srcdir/sharedbuild" + if test x"$with_shared_build_dir" != x; then + sharedbuilddir=$with_shared_build_dir + CFLAGS="$CFLAGS -I$with_shared_build_dir/include" + LDFLAGS="$LDFLAGS -L$with_shared_build_dir/lib" + fi + AC_SUBST(sharedbuilddir) + ]) + diff --git a/lib/tevent/config.mk b/lib/tevent/config.mk new file mode 100644 index 0000000000..127d964775 --- /dev/null +++ b/lib/tevent/config.mk @@ -0,0 +1,58 @@ +############################## +[MODULE::EVENTS_AIO] +PRIVATE_DEPENDENCIES = LIBAIO_LINUX +SUBSYSTEM = LIBEVENTS +INIT_FUNCTION = s4_events_aio_init +############################## + +EVENTS_AIO_OBJ_FILES = $(libeventssrcdir)/events_aio.o + +############################## +[MODULE::EVENTS_EPOLL] +SUBSYSTEM = LIBEVENTS +INIT_FUNCTION = s4_events_epoll_init +############################## + +EVENTS_EPOLL_OBJ_FILES = $(libeventssrcdir)/events_epoll.o + +############################## +[MODULE::EVENTS_SELECT] +SUBSYSTEM = LIBEVENTS +INIT_FUNCTION = s4_events_select_init +############################## + +EVENTS_SELECT_OBJ_FILES = $(libeventssrcdir)/events_select.o + +############################## +[MODULE::EVENTS_STANDARD] +SUBSYSTEM = LIBEVENTS +INIT_FUNCTION = s4_events_standard_init +############################## + +EVENTS_STANDARD_OBJ_FILES = $(libeventssrcdir)/events_standard.o + +################################################ +# Start SUBSYSTEM LIBEVENTS +[LIBRARY::LIBEVENTS] +PUBLIC_DEPENDENCIES = LIBTALLOC +OUTPUT_TYPE = MERGED_OBJ +CFLAGS = -Ilib/events +# +# End SUBSYSTEM LIBEVENTS +################################################ + +LIBEVENTS_OBJ_FILES = $(addprefix $(libeventssrcdir)/, events.o events_timed.o events_signal.o events_debug.o events_util.o events_s4.o) + +PUBLIC_HEADERS += $(addprefix $(libeventssrcdir)/, events.h events_internal.h) + +[PYTHON::swig_events] +LIBRARY_REALNAME = samba/_events.$(SHLIBEXT) +PRIVATE_DEPENDENCIES = LIBEVENTS LIBSAMBA-HOSTCONFIG LIBSAMBA-UTIL + +swig_events_OBJ_FILES = $(libeventssrcdir)/events_wrap.o + +$(eval $(call python_py_module_template,samba/events.py,$(libeventssrcdir)/events.py)) + +$(swig_events_OBJ_FILES): CFLAGS+=$(CFLAG_NO_UNUSED_MACROS) $(CFLAG_NO_CAST_QUAL) + +PC_FILES += $(libeventssrcdir)/events.pc diff --git a/lib/tevent/configure.ac b/lib/tevent/configure.ac new file mode 100644 index 0000000000..895f2a1daa --- /dev/null +++ b/lib/tevent/configure.ac @@ -0,0 +1,40 @@ +AC_PREREQ(2.50) +AC_DEFUN([SMB_MODULE_DEFAULT], [echo -n ""]) +AC_DEFUN([SMB_LIBRARY_ENABLE], [echo -n ""]) +AC_DEFUN([SMB_ENABLE], [echo -n ""]) +AC_DEFUN([SMB_EXT_LIB], [echo -n ""]) +AC_INIT(events, 1.0.0) +AC_CONFIG_SRCDIR([events.c]) +AC_CONFIG_HEADER(config.h) +AC_LIBREPLACE_ALL_CHECKS + +AC_LD_EXPORT_DYNAMIC +AC_LD_SONAMEFLAG +AC_LD_PICFLAG +AC_LD_SHLIBEXT +AC_LIBREPLACE_SHLD +AC_LIBREPLACE_SHLD_FLAGS +AC_LIBREPLACE_RUNTIME_LIB_PATH_VAR + +m4_include(build_macros.m4) +BUILD_WITH_SHARED_BUILD_DIR + +m4_include(pkg.m4) +m4_include(libtalloc.m4) + +m4_include(libevents.m4) +AC_PATH_PROGS([PYTHON_CONFIG], [python2.6-config python2.5-config python2.4-config python-config]) +AC_PATH_PROGS([PYTHON], [python2.6 python2.5 python2.4 python]) + +PYTHON_BUILD_TARGET="build-python" +PYTHON_INSTALL_TARGET="install-python" +PYTHON_CHECK_TARGET="check-python" +AC_SUBST(PYTHON_BUILD_TARGET) +AC_SUBST(PYTHON_INSTALL_TARGET) +AC_SUBST(PYTHON_CHECK_TARGET) +if test -z "$PYTHON_CONFIG"; then + PYTHON_BUILD_TARGET="" + PYTHON_INSTALL_TARGET="" + PYTHON_CHECK_TARGET="" +fi +AC_OUTPUT(Makefile events.pc) diff --git a/lib/tevent/events.i b/lib/tevent/events.i new file mode 100644 index 0000000000..8a0d9c4b6f --- /dev/null +++ b/lib/tevent/events.i @@ -0,0 +1,54 @@ +/* + Unix SMB/CIFS implementation. + Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +%module(docstring="Event management.",package="samba.events") events; + +%import "../../../lib/talloc/talloc.i"; + +%{ +#include "events.h" +typedef struct event_context event; +%} + +typedef struct event_context { + %extend { + %feature("docstring") event "S.__init__()"; + event(TALLOC_CTX *mem_ctx) { return event_context_init(mem_ctx); } + %feature("docstring") loop_once "S.loop_once() -> int"; + int loop_once(void); + %feature("docstring") loop_wait "S.loop_wait() -> int"; + int loop_wait(void); + } +} event; +%talloctype(event); + +%typemap(default,noblock=1) struct event_context * { + $1 = event_context_init(NULL); +} + +%typemap(default,noblock=1) struct event_context * { + $1 = event_context_init(NULL); +} + +struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name); + +%feature("docstring") event_backend_list "event_backend_list() -> list"; +const char **event_backend_list(TALLOC_CTX *mem_ctx); +%feature("docstring") event_set_default_backend "event_set_default_backend(name) -> None"; +%rename(set_default_backend) event_set_default_backend; +void event_set_default_backend(const char *backend); diff --git a/lib/tevent/events.py b/lib/tevent/events.py new file mode 100644 index 0000000000..c15ea8b9e5 --- /dev/null +++ b/lib/tevent/events.py @@ -0,0 +1,94 @@ +# This file was automatically generated by SWIG (http://www.swig.org). +# Version 1.3.36 +# +# Don't modify this file, modify the SWIG interface instead. + +""" +Event management. +""" + +import _events +import new +new_instancemethod = new.instancemethod +try: + _swig_property = property +except NameError: + pass # Python < 2.2 doesn't have 'property'. +def _swig_setattr_nondynamic(self,class_type,name,value,static=1): + if (name == "thisown"): return self.this.own(value) + if (name == "this"): + if type(value).__name__ == 'PySwigObject': + self.__dict__[name] = value + return + method = class_type.__swig_setmethods__.get(name,None) + if method: return method(self,value) + if (not static) or hasattr(self,name): + self.__dict__[name] = value + else: + raise AttributeError("You cannot add attributes to %s" % self) + +def _swig_setattr(self,class_type,name,value): + return _swig_setattr_nondynamic(self,class_type,name,value,0) + +def _swig_getattr(self,class_type,name): + if (name == "thisown"): return self.this.own() + method = class_type.__swig_getmethods__.get(name,None) + if method: return method(self) + raise AttributeError,name + +def _swig_repr(self): + try: strthis = "proxy of " + self.this.__repr__() + except: strthis = "" + return "<%s.%s; %s >" % (self.__class__.__module__, self.__class__.__name__, strthis,) + +import types +try: + _object = types.ObjectType + _newclass = 1 +except AttributeError: + class _object : pass + _newclass = 0 +del types + + +def _swig_setattr_nondynamic_method(set): + def set_attr(self,name,value): + if (name == "thisown"): return self.this.own(value) + if hasattr(self,name) or (name == "this"): + set(self,name,value) + else: + raise AttributeError("You cannot add attributes to %s" % self) + return set_attr + + +class event(object): + thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag') + __repr__ = _swig_repr + def __init__(self, *args, **kwargs): + """S.__init__()""" + _events.event_swiginit(self,_events.new_event(*args, **kwargs)) + def loop_once(*args, **kwargs): + """S.loop_once() -> int""" + return _events.event_loop_once(*args, **kwargs) + + def loop_wait(*args, **kwargs): + """S.loop_wait() -> int""" + return _events.event_loop_wait(*args, **kwargs) + + __swig_destroy__ = _events.delete_event +event.loop_once = new_instancemethod(_events.event_loop_once,None,event) +event.loop_wait = new_instancemethod(_events.event_loop_wait,None,event) +event_swigregister = _events.event_swigregister +event_swigregister(event) + +event_context_init_byname = _events.event_context_init_byname + +def event_backend_list(*args): + """event_backend_list() -> list""" + return _events.event_backend_list(*args) + +def set_default_backend(*args, **kwargs): + """event_set_default_backend(name) -> None""" + return _events.set_default_backend(*args, **kwargs) + + diff --git a/lib/tevent/events_wrap.c b/lib/tevent/events_wrap.c new file mode 100644 index 0000000000..335652101b --- /dev/null +++ b/lib/tevent/events_wrap.c @@ -0,0 +1,3348 @@ +/* ---------------------------------------------------------------------------- + * This file was automatically generated by SWIG (http://www.swig.org). + * Version 1.3.36 + * + * This file is not intended to be easily readable and contains a number of + * coding conventions designed to improve portability and efficiency. Do not make + * changes to this file unless you know what you are doing--modify the SWIG + * interface file instead. + * ----------------------------------------------------------------------------- */ + +#define SWIGPYTHON +#define SWIG_PYTHON_NO_BUILD_NONE +/* ----------------------------------------------------------------------------- + * This section contains generic SWIG labels for method/variable + * declarations/attributes, and other compiler dependent labels. + * ----------------------------------------------------------------------------- */ + +/* template workaround for compilers that cannot correctly implement the C++ standard */ +#ifndef SWIGTEMPLATEDISAMBIGUATOR +# if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x560) +# define SWIGTEMPLATEDISAMBIGUATOR template +# elif defined(__HP_aCC) +/* Needed even with `aCC -AA' when `aCC -V' reports HP ANSI C++ B3910B A.03.55 */ +/* If we find a maximum version that requires this, the test would be __HP_aCC <= 35500 for A.03.55 */ +# define SWIGTEMPLATEDISAMBIGUATOR template +# else +# define SWIGTEMPLATEDISAMBIGUATOR +# endif +#endif + +/* inline attribute */ +#ifndef SWIGINLINE +# if defined(__cplusplus) || (defined(__GNUC__) && !defined(__STRICT_ANSI__)) +# define SWIGINLINE inline +# else +# define SWIGINLINE +# endif +#endif + +/* attribute recognised by some compilers to avoid 'unused' warnings */ +#ifndef SWIGUNUSED +# if defined(__GNUC__) +# if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) +# define SWIGUNUSED __attribute__ ((__unused__)) +# else +# define SWIGUNUSED +# endif +# elif defined(__ICC) +# define SWIGUNUSED __attribute__ ((__unused__)) +# else +# define SWIGUNUSED +# endif +#endif + +#ifndef SWIG_MSC_UNSUPPRESS_4505 +# if defined(_MSC_VER) +# pragma warning(disable : 4505) /* unreferenced local function has been removed */ +# endif +#endif + +#ifndef SWIGUNUSEDPARM +# ifdef __cplusplus +# define SWIGUNUSEDPARM(p) +# else +# define SWIGUNUSEDPARM(p) p SWIGUNUSED +# endif +#endif + +/* internal SWIG method */ +#ifndef SWIGINTERN +# define SWIGINTERN static SWIGUNUSED +#endif + +/* internal inline SWIG method */ +#ifndef SWIGINTERNINLINE +# define SWIGINTERNINLINE SWIGINTERN SWIGINLINE +#endif + +/* exporting methods */ +#if (__GNUC__ >= 4) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) +# ifndef GCC_HASCLASSVISIBILITY +# define GCC_HASCLASSVISIBILITY +# endif +#endif + +#ifndef SWIGEXPORT +# if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) +# if defined(STATIC_LINKED) +# define SWIGEXPORT +# else +# define SWIGEXPORT __declspec(dllexport) +# endif +# else +# if defined(__GNUC__) && defined(GCC_HASCLASSVISIBILITY) +# define SWIGEXPORT __attribute__ ((visibility("default"))) +# else +# define SWIGEXPORT +# endif +# endif +#endif + +/* calling conventions for Windows */ +#ifndef SWIGSTDCALL +# if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) +# define SWIGSTDCALL __stdcall +# else +# define SWIGSTDCALL +# endif +#endif + +/* Deal with Microsoft's attempt at deprecating C standard runtime functions */ +#if !defined(SWIG_NO_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE) +# define _CRT_SECURE_NO_DEPRECATE +#endif + +/* Deal with Microsoft's attempt at deprecating methods in the standard C++ library */ +#if !defined(SWIG_NO_SCL_SECURE_NO_DEPRECATE) && defined(_MSC_VER) && !defined(_SCL_SECURE_NO_DEPRECATE) +# define _SCL_SECURE_NO_DEPRECATE +#endif + + + +/* Python.h has to appear first */ +#include <Python.h> + +/* ----------------------------------------------------------------------------- + * swigrun.swg + * + * This file contains generic CAPI SWIG runtime support for pointer + * type checking. + * ----------------------------------------------------------------------------- */ + +/* This should only be incremented when either the layout of swig_type_info changes, + or for whatever reason, the runtime changes incompatibly */ +#define SWIG_RUNTIME_VERSION "4" + +/* define SWIG_TYPE_TABLE_NAME as "SWIG_TYPE_TABLE" */ +#ifdef SWIG_TYPE_TABLE +# define SWIG_QUOTE_STRING(x) #x +# define SWIG_EXPAND_AND_QUOTE_STRING(x) SWIG_QUOTE_STRING(x) +# define SWIG_TYPE_TABLE_NAME SWIG_EXPAND_AND_QUOTE_STRING(SWIG_TYPE_TABLE) +#else +# define SWIG_TYPE_TABLE_NAME +#endif + +/* + You can use the SWIGRUNTIME and SWIGRUNTIMEINLINE macros for + creating a static or dynamic library from the swig runtime code. + In 99.9% of the cases, swig just needs to declare them as 'static'. + + But only do this if is strictly necessary, ie, if you have problems + with your compiler or so. +*/ + +#ifndef SWIGRUNTIME +# define SWIGRUNTIME SWIGINTERN +#endif + +#ifndef SWIGRUNTIMEINLINE +# define SWIGRUNTIMEINLINE SWIGRUNTIME SWIGINLINE +#endif + +/* Generic buffer size */ +#ifndef SWIG_BUFFER_SIZE +# define SWIG_BUFFER_SIZE 1024 +#endif + +/* Flags for pointer conversions */ +#define SWIG_POINTER_DISOWN 0x1 +#define SWIG_CAST_NEW_MEMORY 0x2 + +/* Flags for new pointer objects */ +#define SWIG_POINTER_OWN 0x1 + + +/* + Flags/methods for returning states. + + The swig conversion methods, as ConvertPtr, return and integer + that tells if the conversion was successful or not. And if not, + an error code can be returned (see swigerrors.swg for the codes). + + Use the following macros/flags to set or process the returning + states. + + In old swig versions, you usually write code as: + + if (SWIG_ConvertPtr(obj,vptr,ty.flags) != -1) { + // success code + } else { + //fail code + } + + Now you can be more explicit as: + + int res = SWIG_ConvertPtr(obj,vptr,ty.flags); + if (SWIG_IsOK(res)) { + // success code + } else { + // fail code + } + + that seems to be the same, but now you can also do + + Type *ptr; + int res = SWIG_ConvertPtr(obj,(void **)(&ptr),ty.flags); + if (SWIG_IsOK(res)) { + // success code + if (SWIG_IsNewObj(res) { + ... + delete *ptr; + } else { + ... + } + } else { + // fail code + } + + I.e., now SWIG_ConvertPtr can return new objects and you can + identify the case and take care of the deallocation. Of course that + requires also to SWIG_ConvertPtr to return new result values, as + + int SWIG_ConvertPtr(obj, ptr,...) { + if (<obj is ok>) { + if (<need new object>) { + *ptr = <ptr to new allocated object>; + return SWIG_NEWOBJ; + } else { + *ptr = <ptr to old object>; + return SWIG_OLDOBJ; + } + } else { + return SWIG_BADOBJ; + } + } + + Of course, returning the plain '0(success)/-1(fail)' still works, but you can be + more explicit by returning SWIG_BADOBJ, SWIG_ERROR or any of the + swig errors code. + + Finally, if the SWIG_CASTRANK_MODE is enabled, the result code + allows to return the 'cast rank', for example, if you have this + + int food(double) + int fooi(int); + + and you call + + food(1) // cast rank '1' (1 -> 1.0) + fooi(1) // cast rank '0' + + just use the SWIG_AddCast()/SWIG_CheckState() + + + */ +#define SWIG_OK (0) +#define SWIG_ERROR (-1) +#define SWIG_IsOK(r) (r >= 0) +#define SWIG_ArgError(r) ((r != SWIG_ERROR) ? r : SWIG_TypeError) + +/* The CastRankLimit says how many bits are used for the cast rank */ +#define SWIG_CASTRANKLIMIT (1 << 8) +/* The NewMask denotes the object was created (using new/malloc) */ +#define SWIG_NEWOBJMASK (SWIG_CASTRANKLIMIT << 1) +/* The TmpMask is for in/out typemaps that use temporal objects */ +#define SWIG_TMPOBJMASK (SWIG_NEWOBJMASK << 1) +/* Simple returning values */ +#define SWIG_BADOBJ (SWIG_ERROR) +#define SWIG_OLDOBJ (SWIG_OK) +#define SWIG_NEWOBJ (SWIG_OK | SWIG_NEWOBJMASK) +#define SWIG_TMPOBJ (SWIG_OK | SWIG_TMPOBJMASK) +/* Check, add and del mask methods */ +#define SWIG_AddNewMask(r) (SWIG_IsOK(r) ? (r | SWIG_NEWOBJMASK) : r) +#define SWIG_DelNewMask(r) (SWIG_IsOK(r) ? (r & ~SWIG_NEWOBJMASK) : r) +#define SWIG_IsNewObj(r) (SWIG_IsOK(r) && (r & SWIG_NEWOBJMASK)) +#define SWIG_AddTmpMask(r) (SWIG_IsOK(r) ? (r | SWIG_TMPOBJMASK) : r) +#define SWIG_DelTmpMask(r) (SWIG_IsOK(r) ? (r & ~SWIG_TMPOBJMASK) : r) +#define SWIG_IsTmpObj(r) (SWIG_IsOK(r) && (r & SWIG_TMPOBJMASK)) + + +/* Cast-Rank Mode */ +#if defined(SWIG_CASTRANK_MODE) +# ifndef SWIG_TypeRank +# define SWIG_TypeRank unsigned long +# endif +# ifndef SWIG_MAXCASTRANK /* Default cast allowed */ +# define SWIG_MAXCASTRANK (2) +# endif +# define SWIG_CASTRANKMASK ((SWIG_CASTRANKLIMIT) -1) +# define SWIG_CastRank(r) (r & SWIG_CASTRANKMASK) +SWIGINTERNINLINE int SWIG_AddCast(int r) { + return SWIG_IsOK(r) ? ((SWIG_CastRank(r) < SWIG_MAXCASTRANK) ? (r + 1) : SWIG_ERROR) : r; +} +SWIGINTERNINLINE int SWIG_CheckState(int r) { + return SWIG_IsOK(r) ? SWIG_CastRank(r) + 1 : 0; +} +#else /* no cast-rank mode */ +# define SWIG_AddCast +# define SWIG_CheckState(r) (SWIG_IsOK(r) ? 1 : 0) +#endif + + + + +#include <string.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef void *(*swig_converter_func)(void *, int *); +typedef struct swig_type_info *(*swig_dycast_func)(void **); + +/* Structure to store information on one type */ +typedef struct swig_type_info { + const char *name; /* mangled name of this type */ + const char *str; /* human readable name of this type */ + swig_dycast_func dcast; /* dynamic cast function down a hierarchy */ + struct swig_cast_info *cast; /* linked list of types that can cast into this type */ + void *clientdata; /* language specific type data */ + int owndata; /* flag if the structure owns the clientdata */ +} swig_type_info; + +/* Structure to store a type and conversion function used for casting */ +typedef struct swig_cast_info { + swig_type_info *type; /* pointer to type that is equivalent to this type */ + swig_converter_func converter; /* function to cast the void pointers */ + struct swig_cast_info *next; /* pointer to next cast in linked list */ + struct swig_cast_info *prev; /* pointer to the previous cast */ +} swig_cast_info; + +/* Structure used to store module information + * Each module generates one structure like this, and the runtime collects + * all of these structures and stores them in a circularly linked list.*/ +typedef struct swig_module_info { + swig_type_info **types; /* Array of pointers to swig_type_info structures that are in this module */ + size_t size; /* Number of types in this module */ + struct swig_module_info *next; /* Pointer to next element in circularly linked list */ + swig_type_info **type_initial; /* Array of initially generated type structures */ + swig_cast_info **cast_initial; /* Array of initially generated casting structures */ + void *clientdata; /* Language specific module data */ +} swig_module_info; + +/* + Compare two type names skipping the space characters, therefore + "char*" == "char *" and "Class<int>" == "Class<int >", etc. + + Return 0 when the two name types are equivalent, as in + strncmp, but skipping ' '. +*/ +SWIGRUNTIME int +SWIG_TypeNameComp(const char *f1, const char *l1, + const char *f2, const char *l2) { + for (;(f1 != l1) && (f2 != l2); ++f1, ++f2) { + while ((*f1 == ' ') && (f1 != l1)) ++f1; + while ((*f2 == ' ') && (f2 != l2)) ++f2; + if (*f1 != *f2) return (*f1 > *f2) ? 1 : -1; + } + return (int)((l1 - f1) - (l2 - f2)); +} + +/* + Check type equivalence in a name list like <name1>|<name2>|... + Return 0 if not equal, 1 if equal +*/ +SWIGRUNTIME int +SWIG_TypeEquiv(const char *nb, const char *tb) { + int equiv = 0; + const char* te = tb + strlen(tb); + const char* ne = nb; + while (!equiv && *ne) { + for (nb = ne; *ne; ++ne) { + if (*ne == '|') break; + } + equiv = (SWIG_TypeNameComp(nb, ne, tb, te) == 0) ? 1 : 0; + if (*ne) ++ne; + } + return equiv; +} + +/* + Check type equivalence in a name list like <name1>|<name2>|... + Return 0 if equal, -1 if nb < tb, 1 if nb > tb +*/ +SWIGRUNTIME int +SWIG_TypeCompare(const char *nb, const char *tb) { + int equiv = 0; + const char* te = tb + strlen(tb); + const char* ne = nb; + while (!equiv && *ne) { + for (nb = ne; *ne; ++ne) { + if (*ne == '|') break; + } + equiv = (SWIG_TypeNameComp(nb, ne, tb, te) == 0) ? 1 : 0; + if (*ne) ++ne; + } + return equiv; +} + + +/* think of this as a c++ template<> or a scheme macro */ +#define SWIG_TypeCheck_Template(comparison, ty) \ + if (ty) { \ + swig_cast_info *iter = ty->cast; \ + while (iter) { \ + if (comparison) { \ + if (iter == ty->cast) return iter; \ + /* Move iter to the top of the linked list */ \ + iter->prev->next = iter->next; \ + if (iter->next) \ + iter->next->prev = iter->prev; \ + iter->next = ty->cast; \ + iter->prev = 0; \ + if (ty->cast) ty->cast->prev = iter; \ + ty->cast = iter; \ + return iter; \ + } \ + iter = iter->next; \ + } \ + } \ + return 0 + +/* + Check the typename +*/ +SWIGRUNTIME swig_cast_info * +SWIG_TypeCheck(const char *c, swig_type_info *ty) { + SWIG_TypeCheck_Template(strcmp(iter->type->name, c) == 0, ty); +} + +/* Same as previous function, except strcmp is replaced with a pointer comparison */ +SWIGRUNTIME swig_cast_info * +SWIG_TypeCheckStruct(swig_type_info *from, swig_type_info *into) { + SWIG_TypeCheck_Template(iter->type == from, into); +} + +/* + Cast a pointer up an inheritance hierarchy +*/ +SWIGRUNTIMEINLINE void * +SWIG_TypeCast(swig_cast_info *ty, void *ptr, int *newmemory) { + return ((!ty) || (!ty->converter)) ? ptr : (*ty->converter)(ptr, newmemory); +} + +/* + Dynamic pointer casting. Down an inheritance hierarchy +*/ +SWIGRUNTIME swig_type_info * +SWIG_TypeDynamicCast(swig_type_info *ty, void **ptr) { + swig_type_info *lastty = ty; + if (!ty || !ty->dcast) return ty; + while (ty && (ty->dcast)) { + ty = (*ty->dcast)(ptr); + if (ty) lastty = ty; + } + return lastty; +} + +/* + Return the name associated with this type +*/ +SWIGRUNTIMEINLINE const char * +SWIG_TypeName(const swig_type_info *ty) { + return ty->name; +} + +/* + Return the pretty name associated with this type, + that is an unmangled type name in a form presentable to the user. +*/ +SWIGRUNTIME const char * +SWIG_TypePrettyName(const swig_type_info *type) { + /* The "str" field contains the equivalent pretty names of the + type, separated by vertical-bar characters. We choose + to print the last name, as it is often (?) the most + specific. */ + if (!type) return NULL; + if (type->str != NULL) { + const char *last_name = type->str; + const char *s; + for (s = type->str; *s; s++) + if (*s == '|') last_name = s+1; + return last_name; + } + else + return type->name; +} + +/* + Set the clientdata field for a type +*/ +SWIGRUNTIME void +SWIG_TypeClientData(swig_type_info *ti, void *clientdata) { + swig_cast_info *cast = ti->cast; + /* if (ti->clientdata == clientdata) return; */ + ti->clientdata = clientdata; + + while (cast) { + if (!cast->converter) { + swig_type_info *tc = cast->type; + if (!tc->clientdata) { + SWIG_TypeClientData(tc, clientdata); + } + } + cast = cast->next; + } +} +SWIGRUNTIME void +SWIG_TypeNewClientData(swig_type_info *ti, void *clientdata) { + SWIG_TypeClientData(ti, clientdata); + ti->owndata = 1; +} + +/* + Search for a swig_type_info structure only by mangled name + Search is a O(log #types) + + We start searching at module start, and finish searching when start == end. + Note: if start == end at the beginning of the function, we go all the way around + the circular list. +*/ +SWIGRUNTIME swig_type_info * +SWIG_MangledTypeQueryModule(swig_module_info *start, + swig_module_info *end, + const char *name) { + swig_module_info *iter = start; + do { + if (iter->size) { + register size_t l = 0; + register size_t r = iter->size - 1; + do { + /* since l+r >= 0, we can (>> 1) instead (/ 2) */ + register size_t i = (l + r) >> 1; + const char *iname = iter->types[i]->name; + if (iname) { + register int compare = strcmp(name, iname); + if (compare == 0) { + return iter->types[i]; + } else if (compare < 0) { + if (i) { + r = i - 1; + } else { + break; + } + } else if (compare > 0) { + l = i + 1; + } + } else { + break; /* should never happen */ + } + } while (l <= r); + } + iter = iter->next; + } while (iter != end); + return 0; +} + +/* + Search for a swig_type_info structure for either a mangled name or a human readable name. + It first searches the mangled names of the types, which is a O(log #types) + If a type is not found it then searches the human readable names, which is O(#types). + + We start searching at module start, and finish searching when start == end. + Note: if start == end at the beginning of the function, we go all the way around + the circular list. +*/ +SWIGRUNTIME swig_type_info * +SWIG_TypeQueryModule(swig_module_info *start, + swig_module_info *end, + const char *name) { + /* STEP 1: Search the name field using binary search */ + swig_type_info *ret = SWIG_MangledTypeQueryModule(start, end, name); + if (ret) { + return ret; + } else { + /* STEP 2: If the type hasn't been found, do a complete search + of the str field (the human readable name) */ + swig_module_info *iter = start; + do { + register size_t i = 0; + for (; i < iter->size; ++i) { + if (iter->types[i]->str && (SWIG_TypeEquiv(iter->types[i]->str, name))) + return iter->types[i]; + } + iter = iter->next; + } while (iter != end); + } + + /* neither found a match */ + return 0; +} + +/* + Pack binary data into a string +*/ +SWIGRUNTIME char * +SWIG_PackData(char *c, void *ptr, size_t sz) { + static const char hex[17] = "0123456789abcdef"; + register const unsigned char *u = (unsigned char *) ptr; + register const unsigned char *eu = u + sz; + for (; u != eu; ++u) { + register unsigned char uu = *u; + *(c++) = hex[(uu & 0xf0) >> 4]; + *(c++) = hex[uu & 0xf]; + } + return c; +} + +/* + Unpack binary data from a string +*/ +SWIGRUNTIME const char * +SWIG_UnpackData(const char *c, void *ptr, size_t sz) { + register unsigned char *u = (unsigned char *) ptr; + register const unsigned char *eu = u + sz; + for (; u != eu; ++u) { + register char d = *(c++); + register unsigned char uu; + if ((d >= '0') && (d <= '9')) + uu = ((d - '0') << 4); + else if ((d >= 'a') && (d <= 'f')) + uu = ((d - ('a'-10)) << 4); + else + return (char *) 0; + d = *(c++); + if ((d >= '0') && (d <= '9')) + uu |= (d - '0'); + else if ((d >= 'a') && (d <= 'f')) + uu |= (d - ('a'-10)); + else + return (char *) 0; + *u = uu; + } + return c; +} + +/* + Pack 'void *' into a string buffer. +*/ +SWIGRUNTIME char * +SWIG_PackVoidPtr(char *buff, void *ptr, const char *name, size_t bsz) { + char *r = buff; + if ((2*sizeof(void *) + 2) > bsz) return 0; + *(r++) = '_'; + r = SWIG_PackData(r,&ptr,sizeof(void *)); + if (strlen(name) + 1 > (bsz - (r - buff))) return 0; + strcpy(r,name); + return buff; +} + +SWIGRUNTIME const char * +SWIG_UnpackVoidPtr(const char *c, void **ptr, const char *name) { + if (*c != '_') { + if (strcmp(c,"NULL") == 0) { + *ptr = (void *) 0; + return name; + } else { + return 0; + } + } + return SWIG_UnpackData(++c,ptr,sizeof(void *)); +} + +SWIGRUNTIME char * +SWIG_PackDataName(char *buff, void *ptr, size_t sz, const char *name, size_t bsz) { + char *r = buff; + size_t lname = (name ? strlen(name) : 0); + if ((2*sz + 2 + lname) > bsz) return 0; + *(r++) = '_'; + r = SWIG_PackData(r,ptr,sz); + if (lname) { + strncpy(r,name,lname+1); + } else { + *r = 0; + } + return buff; +} + +SWIGRUNTIME const char * +SWIG_UnpackDataName(const char *c, void *ptr, size_t sz, const char *name) { + if (*c != '_') { + if (strcmp(c,"NULL") == 0) { + memset(ptr,0,sz); + return name; + } else { + return 0; + } + } + return SWIG_UnpackData(++c,ptr,sz); +} + +#ifdef __cplusplus +} +#endif + +/* Errors in SWIG */ +#define SWIG_UnknownError -1 +#define SWIG_IOError -2 +#define SWIG_RuntimeError -3 +#define SWIG_IndexError -4 +#define SWIG_TypeError -5 +#define SWIG_DivisionByZero -6 +#define SWIG_OverflowError -7 +#define SWIG_SyntaxError -8 +#define SWIG_ValueError -9 +#define SWIG_SystemError -10 +#define SWIG_AttributeError -11 +#define SWIG_MemoryError -12 +#define SWIG_NullReferenceError -13 + + + + +/* Add PyOS_snprintf for old Pythons */ +#if PY_VERSION_HEX < 0x02020000 +# if defined(_MSC_VER) || defined(__BORLANDC__) || defined(_WATCOM) +# define PyOS_snprintf _snprintf +# else +# define PyOS_snprintf snprintf +# endif +#endif + +/* A crude PyString_FromFormat implementation for old Pythons */ +#if PY_VERSION_HEX < 0x02020000 + +#ifndef SWIG_PYBUFFER_SIZE +# define SWIG_PYBUFFER_SIZE 1024 +#endif + +static PyObject * +PyString_FromFormat(const char *fmt, ...) { + va_list ap; + char buf[SWIG_PYBUFFER_SIZE * 2]; + int res; + va_start(ap, fmt); + res = vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + return (res < 0 || res >= (int)sizeof(buf)) ? 0 : PyString_FromString(buf); +} +#endif + +/* Add PyObject_Del for old Pythons */ +#if PY_VERSION_HEX < 0x01060000 +# define PyObject_Del(op) PyMem_DEL((op)) +#endif +#ifndef PyObject_DEL +# define PyObject_DEL PyObject_Del +#endif + +/* A crude PyExc_StopIteration exception for old Pythons */ +#if PY_VERSION_HEX < 0x02020000 +# ifndef PyExc_StopIteration +# define PyExc_StopIteration PyExc_RuntimeError +# endif +# ifndef PyObject_GenericGetAttr +# define PyObject_GenericGetAttr 0 +# endif +#endif +/* Py_NotImplemented is defined in 2.1 and up. */ +#if PY_VERSION_HEX < 0x02010000 +# ifndef Py_NotImplemented +# define Py_NotImplemented PyExc_RuntimeError +# endif +#endif + + +/* A crude PyString_AsStringAndSize implementation for old Pythons */ +#if PY_VERSION_HEX < 0x02010000 +# ifndef PyString_AsStringAndSize +# define PyString_AsStringAndSize(obj, s, len) {*s = PyString_AsString(obj); *len = *s ? strlen(*s) : 0;} +# endif +#endif + +/* PySequence_Size for old Pythons */ +#if PY_VERSION_HEX < 0x02000000 +# ifndef PySequence_Size +# define PySequence_Size PySequence_Length +# endif +#endif + + +/* PyBool_FromLong for old Pythons */ +#if PY_VERSION_HEX < 0x02030000 +static +PyObject *PyBool_FromLong(long ok) +{ + PyObject *result = ok ? Py_True : Py_False; + Py_INCREF(result); + return result; +} +#endif + +/* Py_ssize_t for old Pythons */ +/* This code is as recommended by: */ +/* http://www.python.org/dev/peps/pep-0353/#conversion-guidelines */ +#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN) +typedef int Py_ssize_t; +# define PY_SSIZE_T_MAX INT_MAX +# define PY_SSIZE_T_MIN INT_MIN +#endif + +/* ----------------------------------------------------------------------------- + * error manipulation + * ----------------------------------------------------------------------------- */ + +SWIGRUNTIME PyObject* +SWIG_Python_ErrorType(int code) { + PyObject* type = 0; + switch(code) { + case SWIG_MemoryError: + type = PyExc_MemoryError; + break; + case SWIG_IOError: + type = PyExc_IOError; + break; + case SWIG_RuntimeError: + type = PyExc_RuntimeError; + break; + case SWIG_IndexError: + type = PyExc_IndexError; + break; + case SWIG_TypeError: + type = PyExc_TypeError; + break; + case SWIG_DivisionByZero: + type = PyExc_ZeroDivisionError; + break; + case SWIG_OverflowError: + type = PyExc_OverflowError; + break; + case SWIG_SyntaxError: + type = PyExc_SyntaxError; + break; + case SWIG_ValueError: + type = PyExc_ValueError; + break; + case SWIG_SystemError: + type = PyExc_SystemError; + break; + case SWIG_AttributeError: + type = PyExc_AttributeError; + break; + default: + type = PyExc_RuntimeError; + } + return type; +} + + +SWIGRUNTIME void +SWIG_Python_AddErrorMsg(const char* mesg) +{ + PyObject *type = 0; + PyObject *value = 0; + PyObject *traceback = 0; + + if (PyErr_Occurred()) PyErr_Fetch(&type, &value, &traceback); + if (value) { + PyObject *old_str = PyObject_Str(value); + PyErr_Clear(); + Py_XINCREF(type); + PyErr_Format(type, "%s %s", PyString_AsString(old_str), mesg); + Py_DECREF(old_str); + Py_DECREF(value); + } else { + PyErr_SetString(PyExc_RuntimeError, mesg); + } +} + + + +#if defined(SWIG_PYTHON_NO_THREADS) +# if defined(SWIG_PYTHON_THREADS) +# undef SWIG_PYTHON_THREADS +# endif +#endif +#if defined(SWIG_PYTHON_THREADS) /* Threading support is enabled */ +# if !defined(SWIG_PYTHON_USE_GIL) && !defined(SWIG_PYTHON_NO_USE_GIL) +# if (PY_VERSION_HEX >= 0x02030000) /* For 2.3 or later, use the PyGILState calls */ +# define SWIG_PYTHON_USE_GIL +# endif +# endif +# if defined(SWIG_PYTHON_USE_GIL) /* Use PyGILState threads calls */ +# ifndef SWIG_PYTHON_INITIALIZE_THREADS +# define SWIG_PYTHON_INITIALIZE_THREADS PyEval_InitThreads() +# endif +# ifdef __cplusplus /* C++ code */ + class SWIG_Python_Thread_Block { + bool status; + PyGILState_STATE state; + public: + void end() { if (status) { PyGILState_Release(state); status = false;} } + SWIG_Python_Thread_Block() : status(true), state(PyGILState_Ensure()) {} + ~SWIG_Python_Thread_Block() { end(); } + }; + class SWIG_Python_Thread_Allow { + bool status; + PyThreadState *save; + public: + void end() { if (status) { PyEval_RestoreThread(save); status = false; }} + SWIG_Python_Thread_Allow() : status(true), save(PyEval_SaveThread()) {} + ~SWIG_Python_Thread_Allow() { end(); } + }; +# define SWIG_PYTHON_THREAD_BEGIN_BLOCK SWIG_Python_Thread_Block _swig_thread_block +# define SWIG_PYTHON_THREAD_END_BLOCK _swig_thread_block.end() +# define SWIG_PYTHON_THREAD_BEGIN_ALLOW SWIG_Python_Thread_Allow _swig_thread_allow +# define SWIG_PYTHON_THREAD_END_ALLOW _swig_thread_allow.end() +# else /* C code */ +# define SWIG_PYTHON_THREAD_BEGIN_BLOCK PyGILState_STATE _swig_thread_block = PyGILState_Ensure() +# define SWIG_PYTHON_THREAD_END_BLOCK PyGILState_Release(_swig_thread_block) +# define SWIG_PYTHON_THREAD_BEGIN_ALLOW PyThreadState *_swig_thread_allow = PyEval_SaveThread() +# define SWIG_PYTHON_THREAD_END_ALLOW PyEval_RestoreThread(_swig_thread_allow) +# endif +# else /* Old thread way, not implemented, user must provide it */ +# if !defined(SWIG_PYTHON_INITIALIZE_THREADS) +# define SWIG_PYTHON_INITIALIZE_THREADS +# endif +# if !defined(SWIG_PYTHON_THREAD_BEGIN_BLOCK) +# define SWIG_PYTHON_THREAD_BEGIN_BLOCK +# endif +# if !defined(SWIG_PYTHON_THREAD_END_BLOCK) +# define SWIG_PYTHON_THREAD_END_BLOCK +# endif +# if !defined(SWIG_PYTHON_THREAD_BEGIN_ALLOW) +# define SWIG_PYTHON_THREAD_BEGIN_ALLOW +# endif +# if !defined(SWIG_PYTHON_THREAD_END_ALLOW) +# define SWIG_PYTHON_THREAD_END_ALLOW +# endif +# endif +#else /* No thread support */ +# define SWIG_PYTHON_INITIALIZE_THREADS +# define SWIG_PYTHON_THREAD_BEGIN_BLOCK +# define SWIG_PYTHON_THREAD_END_BLOCK +# define SWIG_PYTHON_THREAD_BEGIN_ALLOW +# define SWIG_PYTHON_THREAD_END_ALLOW +#endif + +/* ----------------------------------------------------------------------------- + * Python API portion that goes into the runtime + * ----------------------------------------------------------------------------- */ + +#ifdef __cplusplus +extern "C" { +#if 0 +} /* cc-mode */ +#endif +#endif + +/* ----------------------------------------------------------------------------- + * Constant declarations + * ----------------------------------------------------------------------------- */ + +/* Constant Types */ +#define SWIG_PY_POINTER 4 +#define SWIG_PY_BINARY 5 + +/* Constant information structure */ +typedef struct swig_const_info { + int type; + char *name; + long lvalue; + double dvalue; + void *pvalue; + swig_type_info **ptype; +} swig_const_info; + +#ifdef __cplusplus +#if 0 +{ /* cc-mode */ +#endif +} +#endif + + +/* ----------------------------------------------------------------------------- + * See the LICENSE file for information on copyright, usage and redistribution + * of SWIG, and the README file for authors - http://www.swig.org/release.html. + * + * pyrun.swg + * + * This file contains the runtime support for Python modules + * and includes code for managing global variables and pointer + * type checking. + * + * ----------------------------------------------------------------------------- */ + +/* Common SWIG API */ + +/* for raw pointers */ +#define SWIG_Python_ConvertPtr(obj, pptr, type, flags) SWIG_Python_ConvertPtrAndOwn(obj, pptr, type, flags, 0) +#define SWIG_ConvertPtr(obj, pptr, type, flags) SWIG_Python_ConvertPtr(obj, pptr, type, flags) +#define SWIG_ConvertPtrAndOwn(obj,pptr,type,flags,own) SWIG_Python_ConvertPtrAndOwn(obj, pptr, type, flags, own) +#define SWIG_NewPointerObj(ptr, type, flags) SWIG_Python_NewPointerObj(ptr, type, flags) +#define SWIG_CheckImplicit(ty) SWIG_Python_CheckImplicit(ty) +#define SWIG_AcquirePtr(ptr, src) SWIG_Python_AcquirePtr(ptr, src) +#define swig_owntype int + +/* for raw packed data */ +#define SWIG_ConvertPacked(obj, ptr, sz, ty) SWIG_Python_ConvertPacked(obj, ptr, sz, ty) +#define SWIG_NewPackedObj(ptr, sz, type) SWIG_Python_NewPackedObj(ptr, sz, type) + +/* for class or struct pointers */ +#define SWIG_ConvertInstance(obj, pptr, type, flags) SWIG_ConvertPtr(obj, pptr, type, flags) +#define SWIG_NewInstanceObj(ptr, type, flags) SWIG_NewPointerObj(ptr, type, flags) + +/* for C or C++ function pointers */ +#define SWIG_ConvertFunctionPtr(obj, pptr, type) SWIG_Python_ConvertFunctionPtr(obj, pptr, type) +#define SWIG_NewFunctionPtrObj(ptr, type) SWIG_Python_NewPointerObj(ptr, type, 0) + +/* for C++ member pointers, ie, member methods */ +#define SWIG_ConvertMember(obj, ptr, sz, ty) SWIG_Python_ConvertPacked(obj, ptr, sz, ty) +#define SWIG_NewMemberObj(ptr, sz, type) SWIG_Python_NewPackedObj(ptr, sz, type) + + +/* Runtime API */ + +#define SWIG_GetModule(clientdata) SWIG_Python_GetModule() +#define SWIG_SetModule(clientdata, pointer) SWIG_Python_SetModule(pointer) +#define SWIG_NewClientData(obj) PySwigClientData_New(obj) + +#define SWIG_SetErrorObj SWIG_Python_SetErrorObj +#define SWIG_SetErrorMsg SWIG_Python_SetErrorMsg +#define SWIG_ErrorType(code) SWIG_Python_ErrorType(code) +#define SWIG_Error(code, msg) SWIG_Python_SetErrorMsg(SWIG_ErrorType(code), msg) +#define SWIG_fail goto fail + + +/* Runtime API implementation */ + +/* Error manipulation */ + +SWIGINTERN void +SWIG_Python_SetErrorObj(PyObject *errtype, PyObject *obj) { + SWIG_PYTHON_THREAD_BEGIN_BLOCK; + PyErr_SetObject(errtype, obj); + Py_DECREF(obj); + SWIG_PYTHON_THREAD_END_BLOCK; +} + +SWIGINTERN void +SWIG_Python_SetErrorMsg(PyObject *errtype, const char *msg) { + SWIG_PYTHON_THREAD_BEGIN_BLOCK; + PyErr_SetString(errtype, (char *) msg); + SWIG_PYTHON_THREAD_END_BLOCK; +} + +#define SWIG_Python_Raise(obj, type, desc) SWIG_Python_SetErrorObj(SWIG_Python_ExceptionType(desc), obj) + +/* Set a constant value */ + +SWIGINTERN void +SWIG_Python_SetConstant(PyObject *d, const char *name, PyObject *obj) { + PyDict_SetItemString(d, (char*) name, obj); + Py_DECREF(obj); +} + +/* Append a value to the result obj */ + +SWIGINTERN PyObject* +SWIG_Python_AppendOutput(PyObject* result, PyObject* obj) { +#if !defined(SWIG_PYTHON_OUTPUT_TUPLE) + if (!result) { + result = obj; + } else if (result == Py_None) { + Py_DECREF(result); + result = obj; + } else { + if (!PyList_Check(result)) { + PyObject *o2 = result; + result = PyList_New(1); + PyList_SetItem(result, 0, o2); + } + PyList_Append(result,obj); + Py_DECREF(obj); + } + return result; +#else + PyObject* o2; + PyObject* o3; + if (!result) { + result = obj; + } else if (result == Py_None) { + Py_DECREF(result); + result = obj; + } else { + if (!PyTuple_Check(result)) { + o2 = result; + result = PyTuple_New(1); + PyTuple_SET_ITEM(result, 0, o2); + } + o3 = PyTuple_New(1); + PyTuple_SET_ITEM(o3, 0, obj); + o2 = result; + result = PySequence_Concat(o2, o3); + Py_DECREF(o2); + Py_DECREF(o3); + } + return result; +#endif +} + +/* Unpack the argument tuple */ + +SWIGINTERN int +SWIG_Python_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, PyObject **objs) +{ + if (!args) { + if (!min && !max) { + return 1; + } else { + PyErr_Format(PyExc_TypeError, "%s expected %s%d arguments, got none", + name, (min == max ? "" : "at least "), (int)min); + return 0; + } + } + if (!PyTuple_Check(args)) { + PyErr_SetString(PyExc_SystemError, "UnpackTuple() argument list is not a tuple"); + return 0; + } else { + register Py_ssize_t l = PyTuple_GET_SIZE(args); + if (l < min) { + PyErr_Format(PyExc_TypeError, "%s expected %s%d arguments, got %d", + name, (min == max ? "" : "at least "), (int)min, (int)l); + return 0; + } else if (l > max) { + PyErr_Format(PyExc_TypeError, "%s expected %s%d arguments, got %d", + name, (min == max ? "" : "at most "), (int)max, (int)l); + return 0; + } else { + register int i; + for (i = 0; i < l; ++i) { + objs[i] = PyTuple_GET_ITEM(args, i); + } + for (; l < max; ++l) { + objs[l] = 0; + } + return i + 1; + } + } +} + +/* A functor is a function object with one single object argument */ +#if PY_VERSION_HEX >= 0x02020000 +#define SWIG_Python_CallFunctor(functor, obj) PyObject_CallFunctionObjArgs(functor, obj, NULL); +#else +#define SWIG_Python_CallFunctor(functor, obj) PyObject_CallFunction(functor, "O", obj); +#endif + +/* + Helper for static pointer initialization for both C and C++ code, for example + static PyObject *SWIG_STATIC_POINTER(MyVar) = NewSomething(...); +*/ +#ifdef __cplusplus +#define SWIG_STATIC_POINTER(var) var +#else +#define SWIG_STATIC_POINTER(var) var = 0; if (!var) var +#endif + +/* ----------------------------------------------------------------------------- + * Pointer declarations + * ----------------------------------------------------------------------------- */ + +/* Flags for new pointer objects */ +#define SWIG_POINTER_NOSHADOW (SWIG_POINTER_OWN << 1) +#define SWIG_POINTER_NEW (SWIG_POINTER_NOSHADOW | SWIG_POINTER_OWN) + +#define SWIG_POINTER_IMPLICIT_CONV (SWIG_POINTER_DISOWN << 1) + +#ifdef __cplusplus +extern "C" { +#if 0 +} /* cc-mode */ +#endif +#endif + +/* How to access Py_None */ +#if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) +# ifndef SWIG_PYTHON_NO_BUILD_NONE +# ifndef SWIG_PYTHON_BUILD_NONE +# define SWIG_PYTHON_BUILD_NONE +# endif +# endif +#endif + +#ifdef SWIG_PYTHON_BUILD_NONE +# ifdef Py_None +# undef Py_None +# define Py_None SWIG_Py_None() +# endif +SWIGRUNTIMEINLINE PyObject * +_SWIG_Py_None(void) +{ + PyObject *none = Py_BuildValue((char*)""); + Py_DECREF(none); + return none; +} +SWIGRUNTIME PyObject * +SWIG_Py_None(void) +{ + static PyObject *SWIG_STATIC_POINTER(none) = _SWIG_Py_None(); + return none; +} +#endif + +/* The python void return value */ + +SWIGRUNTIMEINLINE PyObject * +SWIG_Py_Void(void) +{ + PyObject *none = Py_None; + Py_INCREF(none); + return none; +} + +/* PySwigClientData */ + +typedef struct { + PyObject *klass; + PyObject *newraw; + PyObject *newargs; + PyObject *destroy; + int delargs; + int implicitconv; +} PySwigClientData; + +SWIGRUNTIMEINLINE int +SWIG_Python_CheckImplicit(swig_type_info *ty) +{ + PySwigClientData *data = (PySwigClientData *)ty->clientdata; + return data ? data->implicitconv : 0; +} + +SWIGRUNTIMEINLINE PyObject * +SWIG_Python_ExceptionType(swig_type_info *desc) { + PySwigClientData *data = desc ? (PySwigClientData *) desc->clientdata : 0; + PyObject *klass = data ? data->klass : 0; + return (klass ? klass : PyExc_RuntimeError); +} + + +SWIGRUNTIME PySwigClientData * +PySwigClientData_New(PyObject* obj) +{ + if (!obj) { + return 0; + } else { + PySwigClientData *data = (PySwigClientData *)malloc(sizeof(PySwigClientData)); + /* the klass element */ + data->klass = obj; + Py_INCREF(data->klass); + /* the newraw method and newargs arguments used to create a new raw instance */ + if (PyClass_Check(obj)) { + data->newraw = 0; + data->newargs = obj; + Py_INCREF(obj); + } else { +#if (PY_VERSION_HEX < 0x02020000) + data->newraw = 0; +#else + data->newraw = PyObject_GetAttrString(data->klass, (char *)"__new__"); +#endif + if (data->newraw) { + Py_INCREF(data->newraw); + data->newargs = PyTuple_New(1); + PyTuple_SetItem(data->newargs, 0, obj); + } else { + data->newargs = obj; + } + Py_INCREF(data->newargs); + } + /* the destroy method, aka as the C++ delete method */ + data->destroy = PyObject_GetAttrString(data->klass, (char *)"__swig_destroy__"); + if (PyErr_Occurred()) { + PyErr_Clear(); + data->destroy = 0; + } + if (data->destroy) { + int flags; + Py_INCREF(data->destroy); + flags = PyCFunction_GET_FLAGS(data->destroy); +#ifdef METH_O + data->delargs = !(flags & (METH_O)); +#else + data->delargs = 0; +#endif + } else { + data->delargs = 0; + } + data->implicitconv = 0; + return data; + } +} + +SWIGRUNTIME void +PySwigClientData_Del(PySwigClientData* data) +{ + Py_XDECREF(data->newraw); + Py_XDECREF(data->newargs); + Py_XDECREF(data->destroy); +} + +/* =============== PySwigObject =====================*/ + +typedef struct { + PyObject_HEAD + void *ptr; + swig_type_info *ty; + int own; + PyObject *next; +} PySwigObject; + +SWIGRUNTIME PyObject * +PySwigObject_long(PySwigObject *v) +{ + return PyLong_FromVoidPtr(v->ptr); +} + +SWIGRUNTIME PyObject * +PySwigObject_format(const char* fmt, PySwigObject *v) +{ + PyObject *res = NULL; + PyObject *args = PyTuple_New(1); + if (args) { + if (PyTuple_SetItem(args, 0, PySwigObject_long(v)) == 0) { + PyObject *ofmt = PyString_FromString(fmt); + if (ofmt) { + res = PyString_Format(ofmt,args); + Py_DECREF(ofmt); + } + Py_DECREF(args); + } + } + return res; +} + +SWIGRUNTIME PyObject * +PySwigObject_oct(PySwigObject *v) +{ + return PySwigObject_format("%o",v); +} + +SWIGRUNTIME PyObject * +PySwigObject_hex(PySwigObject *v) +{ + return PySwigObject_format("%x",v); +} + +SWIGRUNTIME PyObject * +#ifdef METH_NOARGS +PySwigObject_repr(PySwigObject *v) +#else +PySwigObject_repr(PySwigObject *v, PyObject *args) +#endif +{ + const char *name = SWIG_TypePrettyName(v->ty); + PyObject *hex = PySwigObject_hex(v); + PyObject *repr = PyString_FromFormat("<Swig Object of type '%s' at 0x%s>", name, PyString_AsString(hex)); + Py_DECREF(hex); + if (v->next) { +#ifdef METH_NOARGS + PyObject *nrep = PySwigObject_repr((PySwigObject *)v->next); +#else + PyObject *nrep = PySwigObject_repr((PySwigObject *)v->next, args); +#endif + PyString_ConcatAndDel(&repr,nrep); + } + return repr; +} + +SWIGRUNTIME int +PySwigObject_print(PySwigObject *v, FILE *fp, int SWIGUNUSEDPARM(flags)) +{ +#ifdef METH_NOARGS + PyObject *repr = PySwigObject_repr(v); +#else + PyObject *repr = PySwigObject_repr(v, NULL); +#endif + if (repr) { + fputs(PyString_AsString(repr), fp); + Py_DECREF(repr); + return 0; + } else { + return 1; + } +} + +SWIGRUNTIME PyObject * +PySwigObject_str(PySwigObject *v) +{ + char result[SWIG_BUFFER_SIZE]; + return SWIG_PackVoidPtr(result, v->ptr, v->ty->name, sizeof(result)) ? + PyString_FromString(result) : 0; +} + +SWIGRUNTIME int +PySwigObject_compare(PySwigObject *v, PySwigObject *w) +{ + void *i = v->ptr; + void *j = w->ptr; + return (i < j) ? -1 : ((i > j) ? 1 : 0); +} + +SWIGRUNTIME PyTypeObject* _PySwigObject_type(void); + +SWIGRUNTIME PyTypeObject* +PySwigObject_type(void) { + static PyTypeObject *SWIG_STATIC_POINTER(type) = _PySwigObject_type(); + return type; +} + +SWIGRUNTIMEINLINE int +PySwigObject_Check(PyObject *op) { + return ((op)->ob_type == PySwigObject_type()) + || (strcmp((op)->ob_type->tp_name,"PySwigObject") == 0); +} + +SWIGRUNTIME PyObject * +PySwigObject_New(void *ptr, swig_type_info *ty, int own); + +SWIGRUNTIME void +PySwigObject_dealloc(PyObject *v) +{ + PySwigObject *sobj = (PySwigObject *) v; + PyObject *next = sobj->next; + if (sobj->own == SWIG_POINTER_OWN) { + swig_type_info *ty = sobj->ty; + PySwigClientData *data = ty ? (PySwigClientData *) ty->clientdata : 0; + PyObject *destroy = data ? data->destroy : 0; + if (destroy) { + /* destroy is always a VARARGS method */ + PyObject *res; + if (data->delargs) { + /* we need to create a temporal object to carry the destroy operation */ + PyObject *tmp = PySwigObject_New(sobj->ptr, ty, 0); + res = SWIG_Python_CallFunctor(destroy, tmp); + Py_DECREF(tmp); + } else { + PyCFunction meth = PyCFunction_GET_FUNCTION(destroy); + PyObject *mself = PyCFunction_GET_SELF(destroy); + res = ((*meth)(mself, v)); + } + Py_XDECREF(res); + } +#if !defined(SWIG_PYTHON_SILENT_MEMLEAK) + else { + const char *name = SWIG_TypePrettyName(ty); + printf("swig/python detected a memory leak of type '%s', no destructor found.\n", (name ? name : "unknown")); + } +#endif + } + Py_XDECREF(next); + PyObject_DEL(v); +} + +SWIGRUNTIME PyObject* +PySwigObject_append(PyObject* v, PyObject* next) +{ + PySwigObject *sobj = (PySwigObject *) v; +#ifndef METH_O + PyObject *tmp = 0; + if (!PyArg_ParseTuple(next,(char *)"O:append", &tmp)) return NULL; + next = tmp; +#endif + if (!PySwigObject_Check(next)) { + return NULL; + } + sobj->next = next; + Py_INCREF(next); + return SWIG_Py_Void(); +} + +SWIGRUNTIME PyObject* +#ifdef METH_NOARGS +PySwigObject_next(PyObject* v) +#else +PySwigObject_next(PyObject* v, PyObject *SWIGUNUSEDPARM(args)) +#endif +{ + PySwigObject *sobj = (PySwigObject *) v; + if (sobj->next) { + Py_INCREF(sobj->next); + return sobj->next; + } else { + return SWIG_Py_Void(); + } +} + +SWIGINTERN PyObject* +#ifdef METH_NOARGS +PySwigObject_disown(PyObject *v) +#else +PySwigObject_disown(PyObject* v, PyObject *SWIGUNUSEDPARM(args)) +#endif +{ + PySwigObject *sobj = (PySwigObject *)v; + sobj->own = 0; + return SWIG_Py_Void(); +} + +SWIGINTERN PyObject* +#ifdef METH_NOARGS +PySwigObject_acquire(PyObject *v) +#else +PySwigObject_acquire(PyObject* v, PyObject *SWIGUNUSEDPARM(args)) +#endif +{ + PySwigObject *sobj = (PySwigObject *)v; + sobj->own = SWIG_POINTER_OWN; + return SWIG_Py_Void(); +} + +SWIGINTERN PyObject* +PySwigObject_own(PyObject *v, PyObject *args) +{ + PyObject *val = 0; +#if (PY_VERSION_HEX < 0x02020000) + if (!PyArg_ParseTuple(args,(char *)"|O:own",&val)) +#else + if (!PyArg_UnpackTuple(args, (char *)"own", 0, 1, &val)) +#endif + { + return NULL; + } + else + { + PySwigObject *sobj = (PySwigObject *)v; + PyObject *obj = PyBool_FromLong(sobj->own); + if (val) { +#ifdef METH_NOARGS + if (PyObject_IsTrue(val)) { + PySwigObject_acquire(v); + } else { + PySwigObject_disown(v); + } +#else + if (PyObject_IsTrue(val)) { + PySwigObject_acquire(v,args); + } else { + PySwigObject_disown(v,args); + } +#endif + } + return obj; + } +} + +#ifdef METH_O +static PyMethodDef +swigobject_methods[] = { + {(char *)"disown", (PyCFunction)PySwigObject_disown, METH_NOARGS, (char *)"releases ownership of the pointer"}, + {(char *)"acquire", (PyCFunction)PySwigObject_acquire, METH_NOARGS, (char *)"aquires ownership of the pointer"}, + {(char *)"own", (PyCFunction)PySwigObject_own, METH_VARARGS, (char *)"returns/sets ownership of the pointer"}, + {(char *)"append", (PyCFunction)PySwigObject_append, METH_O, (char *)"appends another 'this' object"}, + {(char *)"next", (PyCFunction)PySwigObject_next, METH_NOARGS, (char *)"returns the next 'this' object"}, + {(char *)"__repr__",(PyCFunction)PySwigObject_repr, METH_NOARGS, (char *)"returns object representation"}, + {0, 0, 0, 0} +}; +#else +static PyMethodDef +swigobject_methods[] = { + {(char *)"disown", (PyCFunction)PySwigObject_disown, METH_VARARGS, (char *)"releases ownership of the pointer"}, + {(char *)"acquire", (PyCFunction)PySwigObject_acquire, METH_VARARGS, (char *)"aquires ownership of the pointer"}, + {(char *)"own", (PyCFunction)PySwigObject_own, METH_VARARGS, (char *)"returns/sets ownership of the pointer"}, + {(char *)"append", (PyCFunction)PySwigObject_append, METH_VARARGS, (char *)"appends another 'this' object"}, + {(char *)"next", (PyCFunction)PySwigObject_next, METH_VARARGS, (char *)"returns the next 'this' object"}, + {(char *)"__repr__",(PyCFunction)PySwigObject_repr, METH_VARARGS, (char *)"returns object representation"}, + {0, 0, 0, 0} +}; +#endif + +#if PY_VERSION_HEX < 0x02020000 +SWIGINTERN PyObject * +PySwigObject_getattr(PySwigObject *sobj,char *name) +{ + return Py_FindMethod(swigobject_methods, (PyObject *)sobj, name); +} +#endif + +SWIGRUNTIME PyTypeObject* +_PySwigObject_type(void) { + static char swigobject_doc[] = "Swig object carries a C/C++ instance pointer"; + + static PyNumberMethods PySwigObject_as_number = { + (binaryfunc)0, /*nb_add*/ + (binaryfunc)0, /*nb_subtract*/ + (binaryfunc)0, /*nb_multiply*/ + (binaryfunc)0, /*nb_divide*/ + (binaryfunc)0, /*nb_remainder*/ + (binaryfunc)0, /*nb_divmod*/ + (ternaryfunc)0,/*nb_power*/ + (unaryfunc)0, /*nb_negative*/ + (unaryfunc)0, /*nb_positive*/ + (unaryfunc)0, /*nb_absolute*/ + (inquiry)0, /*nb_nonzero*/ + 0, /*nb_invert*/ + 0, /*nb_lshift*/ + 0, /*nb_rshift*/ + 0, /*nb_and*/ + 0, /*nb_xor*/ + 0, /*nb_or*/ + (coercion)0, /*nb_coerce*/ + (unaryfunc)PySwigObject_long, /*nb_int*/ + (unaryfunc)PySwigObject_long, /*nb_long*/ + (unaryfunc)0, /*nb_float*/ + (unaryfunc)PySwigObject_oct, /*nb_oct*/ + (unaryfunc)PySwigObject_hex, /*nb_hex*/ +#if PY_VERSION_HEX >= 0x02050000 /* 2.5.0 */ + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* nb_inplace_add -> nb_index */ +#elif PY_VERSION_HEX >= 0x02020000 /* 2.2.0 */ + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* nb_inplace_add -> nb_inplace_true_divide */ +#elif PY_VERSION_HEX >= 0x02000000 /* 2.0.0 */ + 0,0,0,0,0,0,0,0,0,0,0 /* nb_inplace_add -> nb_inplace_or */ +#endif + }; + + static PyTypeObject pyswigobject_type; + static int type_init = 0; + if (!type_init) { + const PyTypeObject tmp + = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + (char *)"PySwigObject", /* tp_name */ + sizeof(PySwigObject), /* tp_basicsize */ + 0, /* tp_itemsize */ + (destructor)PySwigObject_dealloc, /* tp_dealloc */ + (printfunc)PySwigObject_print, /* tp_print */ +#if PY_VERSION_HEX < 0x02020000 + (getattrfunc)PySwigObject_getattr, /* tp_getattr */ +#else + (getattrfunc)0, /* tp_getattr */ +#endif + (setattrfunc)0, /* tp_setattr */ + (cmpfunc)PySwigObject_compare, /* tp_compare */ + (reprfunc)PySwigObject_repr, /* tp_repr */ + &PySwigObject_as_number, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + (hashfunc)0, /* tp_hash */ + (ternaryfunc)0, /* tp_call */ + (reprfunc)PySwigObject_str, /* tp_str */ + PyObject_GenericGetAttr, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT, /* tp_flags */ + swigobject_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ +#if PY_VERSION_HEX >= 0x02020000 + 0, /* tp_iter */ + 0, /* tp_iternext */ + swigobject_methods, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + 0, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + 0, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ + 0, /* tp_mro */ + 0, /* tp_cache */ + 0, /* tp_subclasses */ + 0, /* tp_weaklist */ +#endif +#if PY_VERSION_HEX >= 0x02030000 + 0, /* tp_del */ +#endif +#ifdef COUNT_ALLOCS + 0,0,0,0 /* tp_alloc -> tp_next */ +#endif + }; + pyswigobject_type = tmp; + pyswigobject_type.ob_type = &PyType_Type; + type_init = 1; + } + return &pyswigobject_type; +} + +SWIGRUNTIME PyObject * +PySwigObject_New(void *ptr, swig_type_info *ty, int own) +{ + PySwigObject *sobj = PyObject_NEW(PySwigObject, PySwigObject_type()); + if (sobj) { + sobj->ptr = ptr; + sobj->ty = ty; + sobj->own = own; + sobj->next = 0; + } + return (PyObject *)sobj; +} + +/* ----------------------------------------------------------------------------- + * Implements a simple Swig Packed type, and use it instead of string + * ----------------------------------------------------------------------------- */ + +typedef struct { + PyObject_HEAD + void *pack; + swig_type_info *ty; + size_t size; +} PySwigPacked; + +SWIGRUNTIME int +PySwigPacked_print(PySwigPacked *v, FILE *fp, int SWIGUNUSEDPARM(flags)) +{ + char result[SWIG_BUFFER_SIZE]; + fputs("<Swig Packed ", fp); + if (SWIG_PackDataName(result, v->pack, v->size, 0, sizeof(result))) { + fputs("at ", fp); + fputs(result, fp); + } + fputs(v->ty->name,fp); + fputs(">", fp); + return 0; +} + +SWIGRUNTIME PyObject * +PySwigPacked_repr(PySwigPacked *v) +{ + char result[SWIG_BUFFER_SIZE]; + if (SWIG_PackDataName(result, v->pack, v->size, 0, sizeof(result))) { + return PyString_FromFormat("<Swig Packed at %s%s>", result, v->ty->name); + } else { + return PyString_FromFormat("<Swig Packed %s>", v->ty->name); + } +} + +SWIGRUNTIME PyObject * +PySwigPacked_str(PySwigPacked *v) +{ + char result[SWIG_BUFFER_SIZE]; + if (SWIG_PackDataName(result, v->pack, v->size, 0, sizeof(result))){ + return PyString_FromFormat("%s%s", result, v->ty->name); + } else { + return PyString_FromString(v->ty->name); + } +} + +SWIGRUNTIME int +PySwigPacked_compare(PySwigPacked *v, PySwigPacked *w) +{ + size_t i = v->size; + size_t j = w->size; + int s = (i < j) ? -1 : ((i > j) ? 1 : 0); + return s ? s : strncmp((char *)v->pack, (char *)w->pack, 2*v->size); +} + +SWIGRUNTIME PyTypeObject* _PySwigPacked_type(void); + +SWIGRUNTIME PyTypeObject* +PySwigPacked_type(void) { + static PyTypeObject *SWIG_STATIC_POINTER(type) = _PySwigPacked_type(); + return type; +} + +SWIGRUNTIMEINLINE int +PySwigPacked_Check(PyObject *op) { + return ((op)->ob_type == _PySwigPacked_type()) + || (strcmp((op)->ob_type->tp_name,"PySwigPacked") == 0); +} + +SWIGRUNTIME void +PySwigPacked_dealloc(PyObject *v) +{ + if (PySwigPacked_Check(v)) { + PySwigPacked *sobj = (PySwigPacked *) v; + free(sobj->pack); + } + PyObject_DEL(v); +} + +SWIGRUNTIME PyTypeObject* +_PySwigPacked_type(void) { + static char swigpacked_doc[] = "Swig object carries a C/C++ instance pointer"; + static PyTypeObject pyswigpacked_type; + static int type_init = 0; + if (!type_init) { + const PyTypeObject tmp + = { + PyObject_HEAD_INIT(NULL) + 0, /* ob_size */ + (char *)"PySwigPacked", /* tp_name */ + sizeof(PySwigPacked), /* tp_basicsize */ + 0, /* tp_itemsize */ + (destructor)PySwigPacked_dealloc, /* tp_dealloc */ + (printfunc)PySwigPacked_print, /* tp_print */ + (getattrfunc)0, /* tp_getattr */ + (setattrfunc)0, /* tp_setattr */ + (cmpfunc)PySwigPacked_compare, /* tp_compare */ + (reprfunc)PySwigPacked_repr, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + (hashfunc)0, /* tp_hash */ + (ternaryfunc)0, /* tp_call */ + (reprfunc)PySwigPacked_str, /* tp_str */ + PyObject_GenericGetAttr, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT, /* tp_flags */ + swigpacked_doc, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ +#if PY_VERSION_HEX >= 0x02020000 + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + 0, /* tp_members */ + 0, /* tp_getset */ + 0, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + 0, /* tp_new */ + 0, /* tp_free */ + 0, /* tp_is_gc */ + 0, /* tp_bases */ + 0, /* tp_mro */ + 0, /* tp_cache */ + 0, /* tp_subclasses */ + 0, /* tp_weaklist */ +#endif +#if PY_VERSION_HEX >= 0x02030000 + 0, /* tp_del */ +#endif +#ifdef COUNT_ALLOCS + 0,0,0,0 /* tp_alloc -> tp_next */ +#endif + }; + pyswigpacked_type = tmp; + pyswigpacked_type.ob_type = &PyType_Type; + type_init = 1; + } + return &pyswigpacked_type; +} + +SWIGRUNTIME PyObject * +PySwigPacked_New(void *ptr, size_t size, swig_type_info *ty) +{ + PySwigPacked *sobj = PyObject_NEW(PySwigPacked, PySwigPacked_type()); + if (sobj) { + void *pack = malloc(size); + if (pack) { + memcpy(pack, ptr, size); + sobj->pack = pack; + sobj->ty = ty; + sobj->size = size; + } else { + PyObject_DEL((PyObject *) sobj); + sobj = 0; + } + } + return (PyObject *) sobj; +} + +SWIGRUNTIME swig_type_info * +PySwigPacked_UnpackData(PyObject *obj, void *ptr, size_t size) +{ + if (PySwigPacked_Check(obj)) { + PySwigPacked *sobj = (PySwigPacked *)obj; + if (sobj->size != size) return 0; + memcpy(ptr, sobj->pack, size); + return sobj->ty; + } else { + return 0; + } +} + +/* ----------------------------------------------------------------------------- + * pointers/data manipulation + * ----------------------------------------------------------------------------- */ + +SWIGRUNTIMEINLINE PyObject * +_SWIG_This(void) +{ + return PyString_FromString("this"); +} + +SWIGRUNTIME PyObject * +SWIG_This(void) +{ + static PyObject *SWIG_STATIC_POINTER(swig_this) = _SWIG_This(); + return swig_this; +} + +/* #define SWIG_PYTHON_SLOW_GETSET_THIS */ + +SWIGRUNTIME PySwigObject * +SWIG_Python_GetSwigThis(PyObject *pyobj) +{ + if (PySwigObject_Check(pyobj)) { + return (PySwigObject *) pyobj; + } else { + PyObject *obj = 0; +#if (!defined(SWIG_PYTHON_SLOW_GETSET_THIS) && (PY_VERSION_HEX >= 0x02030000)) + if (PyInstance_Check(pyobj)) { + obj = _PyInstance_Lookup(pyobj, SWIG_This()); + } else { + PyObject **dictptr = _PyObject_GetDictPtr(pyobj); + if (dictptr != NULL) { + PyObject *dict = *dictptr; + obj = dict ? PyDict_GetItem(dict, SWIG_This()) : 0; + } else { +#ifdef PyWeakref_CheckProxy + if (PyWeakref_CheckProxy(pyobj)) { + PyObject *wobj = PyWeakref_GET_OBJECT(pyobj); + return wobj ? SWIG_Python_GetSwigThis(wobj) : 0; + } +#endif + obj = PyObject_GetAttr(pyobj,SWIG_This()); + if (obj) { + Py_DECREF(obj); + } else { + if (PyErr_Occurred()) PyErr_Clear(); + return 0; + } + } + } +#else + obj = PyObject_GetAttr(pyobj,SWIG_This()); + if (obj) { + Py_DECREF(obj); + } else { + if (PyErr_Occurred()) PyErr_Clear(); + return 0; + } +#endif + if (obj && !PySwigObject_Check(obj)) { + /* a PyObject is called 'this', try to get the 'real this' + PySwigObject from it */ + return SWIG_Python_GetSwigThis(obj); + } + return (PySwigObject *)obj; + } +} + +/* Acquire a pointer value */ + +SWIGRUNTIME int +SWIG_Python_AcquirePtr(PyObject *obj, int own) { + if (own == SWIG_POINTER_OWN) { + PySwigObject *sobj = SWIG_Python_GetSwigThis(obj); + if (sobj) { + int oldown = sobj->own; + sobj->own = own; + return oldown; + } + } + return 0; +} + +/* Convert a pointer value */ + +SWIGRUNTIME int +SWIG_Python_ConvertPtrAndOwn(PyObject *obj, void **ptr, swig_type_info *ty, int flags, int *own) { + if (!obj) return SWIG_ERROR; + if (obj == Py_None) { + if (ptr) *ptr = 0; + return SWIG_OK; + } else { + PySwigObject *sobj = SWIG_Python_GetSwigThis(obj); + if (own) + *own = 0; + while (sobj) { + void *vptr = sobj->ptr; + if (ty) { + swig_type_info *to = sobj->ty; + if (to == ty) { + /* no type cast needed */ + if (ptr) *ptr = vptr; + break; + } else { + swig_cast_info *tc = SWIG_TypeCheck(to->name,ty); + if (!tc) { + sobj = (PySwigObject *)sobj->next; + } else { + if (ptr) { + int newmemory = 0; + *ptr = SWIG_TypeCast(tc,vptr,&newmemory); + if (newmemory == SWIG_CAST_NEW_MEMORY) { + assert(own); + if (own) + *own = *own | SWIG_CAST_NEW_MEMORY; + } + } + break; + } + } + } else { + if (ptr) *ptr = vptr; + break; + } + } + if (sobj) { + if (own) + *own = *own | sobj->own; + if (flags & SWIG_POINTER_DISOWN) { + sobj->own = 0; + } + return SWIG_OK; + } else { + int res = SWIG_ERROR; + if (flags & SWIG_POINTER_IMPLICIT_CONV) { + PySwigClientData *data = ty ? (PySwigClientData *) ty->clientdata : 0; + if (data && !data->implicitconv) { + PyObject *klass = data->klass; + if (klass) { + PyObject *impconv; + data->implicitconv = 1; /* avoid recursion and call 'explicit' constructors*/ + impconv = SWIG_Python_CallFunctor(klass, obj); + data->implicitconv = 0; + if (PyErr_Occurred()) { + PyErr_Clear(); + impconv = 0; + } + if (impconv) { + PySwigObject *iobj = SWIG_Python_GetSwigThis(impconv); + if (iobj) { + void *vptr; + res = SWIG_Python_ConvertPtrAndOwn((PyObject*)iobj, &vptr, ty, 0, 0); + if (SWIG_IsOK(res)) { + if (ptr) { + *ptr = vptr; + /* transfer the ownership to 'ptr' */ + iobj->own = 0; + res = SWIG_AddCast(res); + res = SWIG_AddNewMask(res); + } else { + res = SWIG_AddCast(res); + } + } + } + Py_DECREF(impconv); + } + } + } + } + return res; + } + } +} + +/* Convert a function ptr value */ + +SWIGRUNTIME int +SWIG_Python_ConvertFunctionPtr(PyObject *obj, void **ptr, swig_type_info *ty) { + if (!PyCFunction_Check(obj)) { + return SWIG_ConvertPtr(obj, ptr, ty, 0); + } else { + void *vptr = 0; + + /* here we get the method pointer for callbacks */ + const char *doc = (((PyCFunctionObject *)obj) -> m_ml -> ml_doc); + const char *desc = doc ? strstr(doc, "swig_ptr: ") : 0; + if (desc) { + desc = ty ? SWIG_UnpackVoidPtr(desc + 10, &vptr, ty->name) : 0; + if (!desc) return SWIG_ERROR; + } + if (ty) { + swig_cast_info *tc = SWIG_TypeCheck(desc,ty); + if (tc) { + int newmemory = 0; + *ptr = SWIG_TypeCast(tc,vptr,&newmemory); + assert(!newmemory); /* newmemory handling not yet implemented */ + } else { + return SWIG_ERROR; + } + } else { + *ptr = vptr; + } + return SWIG_OK; + } +} + +/* Convert a packed value value */ + +SWIGRUNTIME int +SWIG_Python_ConvertPacked(PyObject *obj, void *ptr, size_t sz, swig_type_info *ty) { + swig_type_info *to = PySwigPacked_UnpackData(obj, ptr, sz); + if (!to) return SWIG_ERROR; + if (ty) { + if (to != ty) { + /* check type cast? */ + swig_cast_info *tc = SWIG_TypeCheck(to->name,ty); + if (!tc) return SWIG_ERROR; + } + } + return SWIG_OK; +} + +/* ----------------------------------------------------------------------------- + * Create a new pointer object + * ----------------------------------------------------------------------------- */ + +/* + Create a new instance object, whitout calling __init__, and set the + 'this' attribute. +*/ + +SWIGRUNTIME PyObject* +SWIG_Python_NewShadowInstance(PySwigClientData *data, PyObject *swig_this) +{ +#if (PY_VERSION_HEX >= 0x02020000) + PyObject *inst = 0; + PyObject *newraw = data->newraw; + if (newraw) { + inst = PyObject_Call(newraw, data->newargs, NULL); + if (inst) { +#if !defined(SWIG_PYTHON_SLOW_GETSET_THIS) + PyObject **dictptr = _PyObject_GetDictPtr(inst); + if (dictptr != NULL) { + PyObject *dict = *dictptr; + if (dict == NULL) { + dict = PyDict_New(); + *dictptr = dict; + PyDict_SetItem(dict, SWIG_This(), swig_this); + } + } +#else + PyObject *key = SWIG_This(); + PyObject_SetAttr(inst, key, swig_this); +#endif + } + } else { + PyObject *dict = PyDict_New(); + PyDict_SetItem(dict, SWIG_This(), swig_this); + inst = PyInstance_NewRaw(data->newargs, dict); + Py_DECREF(dict); + } + return inst; +#else +#if (PY_VERSION_HEX >= 0x02010000) + PyObject *inst; + PyObject *dict = PyDict_New(); + PyDict_SetItem(dict, SWIG_This(), swig_this); + inst = PyInstance_NewRaw(data->newargs, dict); + Py_DECREF(dict); + return (PyObject *) inst; +#else + PyInstanceObject *inst = PyObject_NEW(PyInstanceObject, &PyInstance_Type); + if (inst == NULL) { + return NULL; + } + inst->in_class = (PyClassObject *)data->newargs; + Py_INCREF(inst->in_class); + inst->in_dict = PyDict_New(); + if (inst->in_dict == NULL) { + Py_DECREF(inst); + return NULL; + } +#ifdef Py_TPFLAGS_HAVE_WEAKREFS + inst->in_weakreflist = NULL; +#endif +#ifdef Py_TPFLAGS_GC + PyObject_GC_Init(inst); +#endif + PyDict_SetItem(inst->in_dict, SWIG_This(), swig_this); + return (PyObject *) inst; +#endif +#endif +} + +SWIGRUNTIME void +SWIG_Python_SetSwigThis(PyObject *inst, PyObject *swig_this) +{ + PyObject *dict; +#if (PY_VERSION_HEX >= 0x02020000) && !defined(SWIG_PYTHON_SLOW_GETSET_THIS) + PyObject **dictptr = _PyObject_GetDictPtr(inst); + if (dictptr != NULL) { + dict = *dictptr; + if (dict == NULL) { + dict = PyDict_New(); + *dictptr = dict; + } + PyDict_SetItem(dict, SWIG_This(), swig_this); + return; + } +#endif + dict = PyObject_GetAttrString(inst, (char*)"__dict__"); + PyDict_SetItem(dict, SWIG_This(), swig_this); + Py_DECREF(dict); +} + + +SWIGINTERN PyObject * +SWIG_Python_InitShadowInstance(PyObject *args) { + PyObject *obj[2]; + if (!SWIG_Python_UnpackTuple(args,(char*)"swiginit", 2, 2, obj)) { + return NULL; + } else { + PySwigObject *sthis = SWIG_Python_GetSwigThis(obj[0]); + if (sthis) { + PySwigObject_append((PyObject*) sthis, obj[1]); + } else { + SWIG_Python_SetSwigThis(obj[0], obj[1]); + } + return SWIG_Py_Void(); + } +} + +/* Create a new pointer object */ + +SWIGRUNTIME PyObject * +SWIG_Python_NewPointerObj(void *ptr, swig_type_info *type, int flags) { + if (!ptr) { + return SWIG_Py_Void(); + } else { + int own = (flags & SWIG_POINTER_OWN) ? SWIG_POINTER_OWN : 0; + PyObject *robj = PySwigObject_New(ptr, type, own); + PySwigClientData *clientdata = type ? (PySwigClientData *)(type->clientdata) : 0; + if (clientdata && !(flags & SWIG_POINTER_NOSHADOW)) { + PyObject *inst = SWIG_Python_NewShadowInstance(clientdata, robj); + if (inst) { + Py_DECREF(robj); + robj = inst; + } + } + return robj; + } +} + +/* Create a new packed object */ + +SWIGRUNTIMEINLINE PyObject * +SWIG_Python_NewPackedObj(void *ptr, size_t sz, swig_type_info *type) { + return ptr ? PySwigPacked_New((void *) ptr, sz, type) : SWIG_Py_Void(); +} + +/* -----------------------------------------------------------------------------* + * Get type list + * -----------------------------------------------------------------------------*/ + +#ifdef SWIG_LINK_RUNTIME +void *SWIG_ReturnGlobalTypeList(void *); +#endif + +SWIGRUNTIME swig_module_info * +SWIG_Python_GetModule(void) { + static void *type_pointer = (void *)0; + /* first check if module already created */ + if (!type_pointer) { +#ifdef SWIG_LINK_RUNTIME + type_pointer = SWIG_ReturnGlobalTypeList((void *)0); +#else + type_pointer = PyCObject_Import((char*)"swig_runtime_data" SWIG_RUNTIME_VERSION, + (char*)"type_pointer" SWIG_TYPE_TABLE_NAME); + if (PyErr_Occurred()) { + PyErr_Clear(); + type_pointer = (void *)0; + } +#endif + } + return (swig_module_info *) type_pointer; +} + +#if PY_MAJOR_VERSION < 2 +/* PyModule_AddObject function was introduced in Python 2.0. The following function + is copied out of Python/modsupport.c in python version 2.3.4 */ +SWIGINTERN int +PyModule_AddObject(PyObject *m, char *name, PyObject *o) +{ + PyObject *dict; + if (!PyModule_Check(m)) { + PyErr_SetString(PyExc_TypeError, + "PyModule_AddObject() needs module as first arg"); + return SWIG_ERROR; + } + if (!o) { + PyErr_SetString(PyExc_TypeError, + "PyModule_AddObject() needs non-NULL value"); + return SWIG_ERROR; + } + + dict = PyModule_GetDict(m); + if (dict == NULL) { + /* Internal error -- modules must have a dict! */ + PyErr_Format(PyExc_SystemError, "module '%s' has no __dict__", + PyModule_GetName(m)); + return SWIG_ERROR; + } + if (PyDict_SetItemString(dict, name, o)) + return SWIG_ERROR; + Py_DECREF(o); + return SWIG_OK; +} +#endif + +SWIGRUNTIME void +SWIG_Python_DestroyModule(void *vptr) +{ + swig_module_info *swig_module = (swig_module_info *) vptr; + swig_type_info **types = swig_module->types; + size_t i; + for (i =0; i < swig_module->size; ++i) { + swig_type_info *ty = types[i]; + if (ty->owndata) { + PySwigClientData *data = (PySwigClientData *) ty->clientdata; + if (data) PySwigClientData_Del(data); + } + } + Py_DECREF(SWIG_This()); +} + +SWIGRUNTIME void +SWIG_Python_SetModule(swig_module_info *swig_module) { + static PyMethodDef swig_empty_runtime_method_table[] = { {NULL, NULL, 0, NULL} };/* Sentinel */ + + PyObject *module = Py_InitModule((char*)"swig_runtime_data" SWIG_RUNTIME_VERSION, + swig_empty_runtime_method_table); + PyObject *pointer = PyCObject_FromVoidPtr((void *) swig_module, SWIG_Python_DestroyModule); + if (pointer && module) { + PyModule_AddObject(module, (char*)"type_pointer" SWIG_TYPE_TABLE_NAME, pointer); + } else { + Py_XDECREF(pointer); + } +} + +/* The python cached type query */ +SWIGRUNTIME PyObject * +SWIG_Python_TypeCache(void) { + static PyObject *SWIG_STATIC_POINTER(cache) = PyDict_New(); + return cache; +} + +SWIGRUNTIME swig_type_info * +SWIG_Python_TypeQuery(const char *type) +{ + PyObject *cache = SWIG_Python_TypeCache(); + PyObject *key = PyString_FromString(type); + PyObject *obj = PyDict_GetItem(cache, key); + swig_type_info *descriptor; + if (obj) { + descriptor = (swig_type_info *) PyCObject_AsVoidPtr(obj); + } else { + swig_module_info *swig_module = SWIG_Python_GetModule(); + descriptor = SWIG_TypeQueryModule(swig_module, swig_module, type); + if (descriptor) { + obj = PyCObject_FromVoidPtr(descriptor, NULL); + PyDict_SetItem(cache, key, obj); + Py_DECREF(obj); + } + } + Py_DECREF(key); + return descriptor; +} + +/* + For backward compatibility only +*/ +#define SWIG_POINTER_EXCEPTION 0 +#define SWIG_arg_fail(arg) SWIG_Python_ArgFail(arg) +#define SWIG_MustGetPtr(p, type, argnum, flags) SWIG_Python_MustGetPtr(p, type, argnum, flags) + +SWIGRUNTIME int +SWIG_Python_AddErrMesg(const char* mesg, int infront) +{ + if (PyErr_Occurred()) { + PyObject *type = 0; + PyObject *value = 0; + PyObject *traceback = 0; + PyErr_Fetch(&type, &value, &traceback); + if (value) { + PyObject *old_str = PyObject_Str(value); + Py_XINCREF(type); + PyErr_Clear(); + if (infront) { + PyErr_Format(type, "%s %s", mesg, PyString_AsString(old_str)); + } else { + PyErr_Format(type, "%s %s", PyString_AsString(old_str), mesg); + } + Py_DECREF(old_str); + } + return 1; + } else { + return 0; + } +} + +SWIGRUNTIME int +SWIG_Python_ArgFail(int argnum) +{ + if (PyErr_Occurred()) { + /* add information about failing argument */ + char mesg[256]; + PyOS_snprintf(mesg, sizeof(mesg), "argument number %d:", argnum); + return SWIG_Python_AddErrMesg(mesg, 1); + } else { + return 0; + } +} + +SWIGRUNTIMEINLINE const char * +PySwigObject_GetDesc(PyObject *self) +{ + PySwigObject *v = (PySwigObject *)self; + swig_type_info *ty = v ? v->ty : 0; + return ty ? ty->str : (char*)""; +} + +SWIGRUNTIME void +SWIG_Python_TypeError(const char *type, PyObject *obj) +{ + if (type) { +#if defined(SWIG_COBJECT_TYPES) + if (obj && PySwigObject_Check(obj)) { + const char *otype = (const char *) PySwigObject_GetDesc(obj); + if (otype) { + PyErr_Format(PyExc_TypeError, "a '%s' is expected, 'PySwigObject(%s)' is received", + type, otype); + return; + } + } else +#endif + { + const char *otype = (obj ? obj->ob_type->tp_name : 0); + if (otype) { + PyObject *str = PyObject_Str(obj); + const char *cstr = str ? PyString_AsString(str) : 0; + if (cstr) { + PyErr_Format(PyExc_TypeError, "a '%s' is expected, '%s(%s)' is received", + type, otype, cstr); + } else { + PyErr_Format(PyExc_TypeError, "a '%s' is expected, '%s' is received", + type, otype); + } + Py_XDECREF(str); + return; + } + } + PyErr_Format(PyExc_TypeError, "a '%s' is expected", type); + } else { + PyErr_Format(PyExc_TypeError, "unexpected type is received"); + } +} + + +/* Convert a pointer value, signal an exception on a type mismatch */ +SWIGRUNTIME void * +SWIG_Python_MustGetPtr(PyObject *obj, swig_type_info *ty, int argnum, int flags) { + void *result; + if (SWIG_Python_ConvertPtr(obj, &result, ty, flags) == -1) { + PyErr_Clear(); + if (flags & SWIG_POINTER_EXCEPTION) { + SWIG_Python_TypeError(SWIG_TypePrettyName(ty), obj); + SWIG_Python_ArgFail(argnum); + } + } + return result; +} + + +#ifdef __cplusplus +#if 0 +{ /* cc-mode */ +#endif +} +#endif + + + +#define SWIG_exception_fail(code, msg) do { SWIG_Error(code, msg); SWIG_fail; } while(0) + +#define SWIG_contract_assert(expr, msg) if (!(expr)) { SWIG_Error(SWIG_RuntimeError, msg); SWIG_fail; } else + + + +/* -------- TYPES TABLE (BEGIN) -------- */ + +#define SWIGTYPE_p_TALLOC_CTX swig_types[0] +#define SWIGTYPE_p_char swig_types[1] +#define SWIGTYPE_p_event_context swig_types[2] +#define SWIGTYPE_p_p_char swig_types[3] +static swig_type_info *swig_types[5]; +static swig_module_info swig_module = {swig_types, 4, 0, 0, 0, 0}; +#define SWIG_TypeQuery(name) SWIG_TypeQueryModule(&swig_module, &swig_module, name) +#define SWIG_MangledTypeQuery(name) SWIG_MangledTypeQueryModule(&swig_module, &swig_module, name) + +/* -------- TYPES TABLE (END) -------- */ + +#if (PY_VERSION_HEX <= 0x02000000) +# if !defined(SWIG_PYTHON_CLASSIC) +# error "This python version requires swig to be run with the '-classic' option" +# endif +#endif +#if (PY_VERSION_HEX <= 0x02020000) +# error "This python version requires swig to be run with the '-nomodern' option" +#endif +#if (PY_VERSION_HEX <= 0x02020000) +# error "This python version requires swig to be run with the '-nomodernargs' option" +#endif +#ifndef METH_O +# error "This python version requires swig to be run with the '-nofastunpack' option" +#endif +#ifdef SWIG_TypeQuery +# undef SWIG_TypeQuery +#endif +#define SWIG_TypeQuery SWIG_Python_TypeQuery + +/*----------------------------------------------- + @(target):= _events.so + ------------------------------------------------*/ +#define SWIG_init init_events + +#define SWIG_name "_events" + +#define SWIGVERSION 0x010336 +#define SWIG_VERSION SWIGVERSION + + +#define SWIG_as_voidptr(a) (void *)((const void *)(a)) +#define SWIG_as_voidptrptr(a) ((void)SWIG_as_voidptr(*a),(void**)(a)) + + +#include "events.h" +typedef struct event_context event; + +SWIGINTERN event *new_event(TALLOC_CTX *mem_ctx){ return event_context_init(mem_ctx); } + + #define SWIG_From_long PyInt_FromLong + + +SWIGINTERNINLINE PyObject * +SWIG_From_int (int value) +{ + return SWIG_From_long (value); +} + +SWIGINTERN void delete_event(event *self){ talloc_free(self); } + +SWIGINTERN swig_type_info* +SWIG_pchar_descriptor(void) +{ + static int init = 0; + static swig_type_info* info = 0; + if (!init) { + info = SWIG_TypeQuery("_p_char"); + init = 1; + } + return info; +} + + +SWIGINTERN int +SWIG_AsCharPtrAndSize(PyObject *obj, char** cptr, size_t* psize, int *alloc) +{ + if (PyString_Check(obj)) { + char *cstr; Py_ssize_t len; + PyString_AsStringAndSize(obj, &cstr, &len); + if (cptr) { + if (alloc) { + /* + In python the user should not be able to modify the inner + string representation. To warranty that, if you define + SWIG_PYTHON_SAFE_CSTRINGS, a new/copy of the python string + buffer is always returned. + + The default behavior is just to return the pointer value, + so, be careful. + */ +#if defined(SWIG_PYTHON_SAFE_CSTRINGS) + if (*alloc != SWIG_OLDOBJ) +#else + if (*alloc == SWIG_NEWOBJ) +#endif + { + *cptr = (char *)memcpy((char *)malloc((len + 1)*sizeof(char)), cstr, sizeof(char)*(len + 1)); + *alloc = SWIG_NEWOBJ; + } + else { + *cptr = cstr; + *alloc = SWIG_OLDOBJ; + } + } else { + *cptr = PyString_AsString(obj); + } + } + if (psize) *psize = len + 1; + return SWIG_OK; + } else { + swig_type_info* pchar_descriptor = SWIG_pchar_descriptor(); + if (pchar_descriptor) { + void* vptr = 0; + if (SWIG_ConvertPtr(obj, &vptr, pchar_descriptor, 0) == SWIG_OK) { + if (cptr) *cptr = (char *) vptr; + if (psize) *psize = vptr ? (strlen((char *)vptr) + 1) : 0; + if (alloc) *alloc = SWIG_OLDOBJ; + return SWIG_OK; + } + } + } + return SWIG_TypeError; +} + + + + +#ifdef __cplusplus +extern "C" { +#endif +SWIGINTERN PyObject *_wrap_new_event(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *resultobj = 0; + TALLOC_CTX *arg1 = (TALLOC_CTX *) 0 ; + event *result = 0 ; + + arg1 = NULL; + if (!SWIG_Python_UnpackTuple(args,"new_event",0,0,0)) SWIG_fail; + result = (event *)new_event(arg1); + resultobj = SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_event_context, SWIG_POINTER_NEW | 0 ); + return resultobj; +fail: + return NULL; +} + + +SWIGINTERN PyObject *_wrap_event_loop_once(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *resultobj = 0; + event *arg1 = (event *) 0 ; + void *argp1 = 0 ; + int res1 = 0 ; + PyObject *swig_obj[1] ; + int result; + + if (!args) SWIG_fail; + swig_obj[0] = args; + res1 = SWIG_ConvertPtr(swig_obj[0], &argp1,SWIGTYPE_p_event_context, 0 | 0 ); + if (!SWIG_IsOK(res1)) { + SWIG_exception_fail(SWIG_ArgError(res1), "in method '" "event_loop_once" "', argument " "1"" of type '" "event *""'"); + } + arg1 = (event *)(argp1); + result = (int)event_loop_once(arg1); + resultobj = SWIG_From_int((int)(result)); + return resultobj; +fail: + return NULL; +} + + +SWIGINTERN PyObject *_wrap_event_loop_wait(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *resultobj = 0; + event *arg1 = (event *) 0 ; + void *argp1 = 0 ; + int res1 = 0 ; + PyObject *swig_obj[1] ; + int result; + + if (!args) SWIG_fail; + swig_obj[0] = args; + res1 = SWIG_ConvertPtr(swig_obj[0], &argp1,SWIGTYPE_p_event_context, 0 | 0 ); + if (!SWIG_IsOK(res1)) { + SWIG_exception_fail(SWIG_ArgError(res1), "in method '" "event_loop_wait" "', argument " "1"" of type '" "event *""'"); + } + arg1 = (event *)(argp1); + result = (int)event_loop_wait(arg1); + resultobj = SWIG_From_int((int)(result)); + return resultobj; +fail: + return NULL; +} + + +SWIGINTERN PyObject *_wrap_delete_event(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *resultobj = 0; + event *arg1 = (event *) 0 ; + void *argp1 = 0 ; + int res1 = 0 ; + PyObject *swig_obj[1] ; + + if (!args) SWIG_fail; + swig_obj[0] = args; + res1 = SWIG_ConvertPtr(swig_obj[0], &argp1,SWIGTYPE_p_event_context, SWIG_POINTER_DISOWN | 0 ); + if (!SWIG_IsOK(res1)) { + SWIG_exception_fail(SWIG_ArgError(res1), "in method '" "delete_event" "', argument " "1"" of type '" "event *""'"); + } + arg1 = (event *)(argp1); + delete_event(arg1); + resultobj = SWIG_Py_Void(); + return resultobj; +fail: + return NULL; +} + + +SWIGINTERN PyObject *event_swigregister(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *obj; + if (!SWIG_Python_UnpackTuple(args,(char*)"swigregister", 1, 1,&obj)) return NULL; + SWIG_TypeNewClientData(SWIGTYPE_p_event_context, SWIG_NewClientData(obj)); + return SWIG_Py_Void(); +} + +SWIGINTERN PyObject *event_swiginit(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + return SWIG_Python_InitShadowInstance(args); +} + +SWIGINTERN PyObject *_wrap_event_context_init_byname(PyObject *SWIGUNUSEDPARM(self), PyObject *args, PyObject *kwargs) { + PyObject *resultobj = 0; + TALLOC_CTX *arg1 = (TALLOC_CTX *) 0 ; + char *arg2 = (char *) 0 ; + int res2 ; + char *buf2 = 0 ; + int alloc2 = 0 ; + PyObject * obj0 = 0 ; + char * kwnames[] = { + (char *) "name", NULL + }; + struct event_context *result = 0 ; + + arg1 = NULL; + if (!PyArg_ParseTupleAndKeywords(args,kwargs,(char *)"O:event_context_init_byname",kwnames,&obj0)) SWIG_fail; + res2 = SWIG_AsCharPtrAndSize(obj0, &buf2, NULL, &alloc2); + if (!SWIG_IsOK(res2)) { + SWIG_exception_fail(SWIG_ArgError(res2), "in method '" "event_context_init_byname" "', argument " "2"" of type '" "char const *""'"); + } + arg2 = (char *)(buf2); + result = (struct event_context *)event_context_init_byname(arg1,(char const *)arg2); + resultobj = SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_event_context, 0 | 0 ); + if (alloc2 == SWIG_NEWOBJ) free((char*)buf2); + return resultobj; +fail: + if (alloc2 == SWIG_NEWOBJ) free((char*)buf2); + return NULL; +} + + +SWIGINTERN PyObject *_wrap_event_backend_list(PyObject *SWIGUNUSEDPARM(self), PyObject *args) { + PyObject *resultobj = 0; + TALLOC_CTX *arg1 = (TALLOC_CTX *) 0 ; + char **result = 0 ; + + arg1 = NULL; + if (!SWIG_Python_UnpackTuple(args,"event_backend_list",0,0,0)) SWIG_fail; + result = (char **)event_backend_list(arg1); + resultobj = SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_p_char, 0 | 0 ); + return resultobj; +fail: + return NULL; +} + + +SWIGINTERN PyObject *_wrap_set_default_backend(PyObject *SWIGUNUSEDPARM(self), PyObject *args, PyObject *kwargs) { + PyObject *resultobj = 0; + char *arg1 = (char *) 0 ; + int res1 ; + char *buf1 = 0 ; + int alloc1 = 0 ; + PyObject * obj0 = 0 ; + char * kwnames[] = { + (char *) "backend", NULL + }; + + if (!PyArg_ParseTupleAndKeywords(args,kwargs,(char *)"O:set_default_backend",kwnames,&obj0)) SWIG_fail; + res1 = SWIG_AsCharPtrAndSize(obj0, &buf1, NULL, &alloc1); + if (!SWIG_IsOK(res1)) { + SWIG_exception_fail(SWIG_ArgError(res1), "in method '" "set_default_backend" "', argument " "1"" of type '" "char const *""'"); + } + arg1 = (char *)(buf1); + event_set_default_backend((char const *)arg1); + resultobj = SWIG_Py_Void(); + if (alloc1 == SWIG_NEWOBJ) free((char*)buf1); + return resultobj; +fail: + if (alloc1 == SWIG_NEWOBJ) free((char*)buf1); + return NULL; +} + + +static PyMethodDef SwigMethods[] = { + { (char *)"new_event", (PyCFunction)_wrap_new_event, METH_NOARGS, (char *)"S.__init__()"}, + { (char *)"event_loop_once", (PyCFunction)_wrap_event_loop_once, METH_O, (char *)"S.loop_once() -> int"}, + { (char *)"event_loop_wait", (PyCFunction)_wrap_event_loop_wait, METH_O, (char *)"S.loop_wait() -> int"}, + { (char *)"delete_event", (PyCFunction)_wrap_delete_event, METH_O, NULL}, + { (char *)"event_swigregister", event_swigregister, METH_VARARGS, NULL}, + { (char *)"event_swiginit", event_swiginit, METH_VARARGS, NULL}, + { (char *)"event_context_init_byname", (PyCFunction) _wrap_event_context_init_byname, METH_VARARGS | METH_KEYWORDS, NULL}, + { (char *)"event_backend_list", (PyCFunction)_wrap_event_backend_list, METH_NOARGS, (char *)"event_backend_list() -> list"}, + { (char *)"set_default_backend", (PyCFunction) _wrap_set_default_backend, METH_VARARGS | METH_KEYWORDS, (char *)"event_set_default_backend(name) -> None"}, + { NULL, NULL, 0, NULL } +}; + + +/* -------- TYPE CONVERSION AND EQUIVALENCE RULES (BEGIN) -------- */ + +static swig_type_info _swigt__p_TALLOC_CTX = {"_p_TALLOC_CTX", "TALLOC_CTX *", 0, 0, (void*)0, 0}; +static swig_type_info _swigt__p_char = {"_p_char", "char *", 0, 0, (void*)0, 0}; +static swig_type_info _swigt__p_event_context = {"_p_event_context", "struct event_context *|event *", 0, 0, (void*)0, 0}; +static swig_type_info _swigt__p_p_char = {"_p_p_char", "char **", 0, 0, (void*)0, 0}; + +static swig_type_info *swig_type_initial[] = { + &_swigt__p_TALLOC_CTX, + &_swigt__p_char, + &_swigt__p_event_context, + &_swigt__p_p_char, +}; + +static swig_cast_info _swigc__p_TALLOC_CTX[] = { {&_swigt__p_TALLOC_CTX, 0, 0, 0},{0, 0, 0, 0}}; +static swig_cast_info _swigc__p_char[] = { {&_swigt__p_char, 0, 0, 0},{0, 0, 0, 0}}; +static swig_cast_info _swigc__p_event_context[] = { {&_swigt__p_event_context, 0, 0, 0},{0, 0, 0, 0}}; +static swig_cast_info _swigc__p_p_char[] = { {&_swigt__p_p_char, 0, 0, 0},{0, 0, 0, 0}}; + +static swig_cast_info *swig_cast_initial[] = { + _swigc__p_TALLOC_CTX, + _swigc__p_char, + _swigc__p_event_context, + _swigc__p_p_char, +}; + + +/* -------- TYPE CONVERSION AND EQUIVALENCE RULES (END) -------- */ + +static swig_const_info swig_const_table[] = { +{0, 0, 0, 0.0, 0, 0}}; + +#ifdef __cplusplus +} +#endif +/* ----------------------------------------------------------------------------- + * Type initialization: + * This problem is tough by the requirement that no dynamic + * memory is used. Also, since swig_type_info structures store pointers to + * swig_cast_info structures and swig_cast_info structures store pointers back + * to swig_type_info structures, we need some lookup code at initialization. + * The idea is that swig generates all the structures that are needed. + * The runtime then collects these partially filled structures. + * The SWIG_InitializeModule function takes these initial arrays out of + * swig_module, and does all the lookup, filling in the swig_module.types + * array with the correct data and linking the correct swig_cast_info + * structures together. + * + * The generated swig_type_info structures are assigned staticly to an initial + * array. We just loop through that array, and handle each type individually. + * First we lookup if this type has been already loaded, and if so, use the + * loaded structure instead of the generated one. Then we have to fill in the + * cast linked list. The cast data is initially stored in something like a + * two-dimensional array. Each row corresponds to a type (there are the same + * number of rows as there are in the swig_type_initial array). Each entry in + * a column is one of the swig_cast_info structures for that type. + * The cast_initial array is actually an array of arrays, because each row has + * a variable number of columns. So to actually build the cast linked list, + * we find the array of casts associated with the type, and loop through it + * adding the casts to the list. The one last trick we need to do is making + * sure the type pointer in the swig_cast_info struct is correct. + * + * First off, we lookup the cast->type name to see if it is already loaded. + * There are three cases to handle: + * 1) If the cast->type has already been loaded AND the type we are adding + * casting info to has not been loaded (it is in this module), THEN we + * replace the cast->type pointer with the type pointer that has already + * been loaded. + * 2) If BOTH types (the one we are adding casting info to, and the + * cast->type) are loaded, THEN the cast info has already been loaded by + * the previous module so we just ignore it. + * 3) Finally, if cast->type has not already been loaded, then we add that + * swig_cast_info to the linked list (because the cast->type) pointer will + * be correct. + * ----------------------------------------------------------------------------- */ + +#ifdef __cplusplus +extern "C" { +#if 0 +} /* c-mode */ +#endif +#endif + +#if 0 +#define SWIGRUNTIME_DEBUG +#endif + + +SWIGRUNTIME void +SWIG_InitializeModule(void *clientdata) { + size_t i; + swig_module_info *module_head, *iter; + int found, init; + + clientdata = clientdata; + + /* check to see if the circular list has been setup, if not, set it up */ + if (swig_module.next==0) { + /* Initialize the swig_module */ + swig_module.type_initial = swig_type_initial; + swig_module.cast_initial = swig_cast_initial; + swig_module.next = &swig_module; + init = 1; + } else { + init = 0; + } + + /* Try and load any already created modules */ + module_head = SWIG_GetModule(clientdata); + if (!module_head) { + /* This is the first module loaded for this interpreter */ + /* so set the swig module into the interpreter */ + SWIG_SetModule(clientdata, &swig_module); + module_head = &swig_module; + } else { + /* the interpreter has loaded a SWIG module, but has it loaded this one? */ + found=0; + iter=module_head; + do { + if (iter==&swig_module) { + found=1; + break; + } + iter=iter->next; + } while (iter!= module_head); + + /* if the is found in the list, then all is done and we may leave */ + if (found) return; + /* otherwise we must add out module into the list */ + swig_module.next = module_head->next; + module_head->next = &swig_module; + } + + /* When multiple interpeters are used, a module could have already been initialized in + a different interpreter, but not yet have a pointer in this interpreter. + In this case, we do not want to continue adding types... everything should be + set up already */ + if (init == 0) return; + + /* Now work on filling in swig_module.types */ +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: size %d\n", swig_module.size); +#endif + for (i = 0; i < swig_module.size; ++i) { + swig_type_info *type = 0; + swig_type_info *ret; + swig_cast_info *cast; + +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: type %d %s\n", i, swig_module.type_initial[i]->name); +#endif + + /* if there is another module already loaded */ + if (swig_module.next != &swig_module) { + type = SWIG_MangledTypeQueryModule(swig_module.next, &swig_module, swig_module.type_initial[i]->name); + } + if (type) { + /* Overwrite clientdata field */ +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: found type %s\n", type->name); +#endif + if (swig_module.type_initial[i]->clientdata) { + type->clientdata = swig_module.type_initial[i]->clientdata; +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: found and overwrite type %s \n", type->name); +#endif + } + } else { + type = swig_module.type_initial[i]; + } + + /* Insert casting types */ + cast = swig_module.cast_initial[i]; + while (cast->type) { + /* Don't need to add information already in the list */ + ret = 0; +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: look cast %s\n", cast->type->name); +#endif + if (swig_module.next != &swig_module) { + ret = SWIG_MangledTypeQueryModule(swig_module.next, &swig_module, cast->type->name); +#ifdef SWIGRUNTIME_DEBUG + if (ret) printf("SWIG_InitializeModule: found cast %s\n", ret->name); +#endif + } + if (ret) { + if (type == swig_module.type_initial[i]) { +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: skip old type %s\n", ret->name); +#endif + cast->type = ret; + ret = 0; + } else { + /* Check for casting already in the list */ + swig_cast_info *ocast = SWIG_TypeCheck(ret->name, type); +#ifdef SWIGRUNTIME_DEBUG + if (ocast) printf("SWIG_InitializeModule: skip old cast %s\n", ret->name); +#endif + if (!ocast) ret = 0; + } + } + + if (!ret) { +#ifdef SWIGRUNTIME_DEBUG + printf("SWIG_InitializeModule: adding cast %s\n", cast->type->name); +#endif + if (type->cast) { + type->cast->prev = cast; + cast->next = type->cast; + } + type->cast = cast; + } + cast++; + } + /* Set entry in modules->types array equal to the type */ + swig_module.types[i] = type; + } + swig_module.types[i] = 0; + +#ifdef SWIGRUNTIME_DEBUG + printf("**** SWIG_InitializeModule: Cast List ******\n"); + for (i = 0; i < swig_module.size; ++i) { + int j = 0; + swig_cast_info *cast = swig_module.cast_initial[i]; + printf("SWIG_InitializeModule: type %d %s\n", i, swig_module.type_initial[i]->name); + while (cast->type) { + printf("SWIG_InitializeModule: cast type %s\n", cast->type->name); + cast++; + ++j; + } + printf("---- Total casts: %d\n",j); + } + printf("**** SWIG_InitializeModule: Cast List ******\n"); +#endif +} + +/* This function will propagate the clientdata field of type to +* any new swig_type_info structures that have been added into the list +* of equivalent types. It is like calling +* SWIG_TypeClientData(type, clientdata) a second time. +*/ +SWIGRUNTIME void +SWIG_PropagateClientData(void) { + size_t i; + swig_cast_info *equiv; + static int init_run = 0; + + if (init_run) return; + init_run = 1; + + for (i = 0; i < swig_module.size; i++) { + if (swig_module.types[i]->clientdata) { + equiv = swig_module.types[i]->cast; + while (equiv) { + if (!equiv->converter) { + if (equiv->type && !equiv->type->clientdata) + SWIG_TypeClientData(equiv->type, swig_module.types[i]->clientdata); + } + equiv = equiv->next; + } + } + } +} + +#ifdef __cplusplus +#if 0 +{ + /* c-mode */ +#endif +} +#endif + + + +#ifdef __cplusplus +extern "C" { +#endif + + /* Python-specific SWIG API */ +#define SWIG_newvarlink() SWIG_Python_newvarlink() +#define SWIG_addvarlink(p, name, get_attr, set_attr) SWIG_Python_addvarlink(p, name, get_attr, set_attr) +#define SWIG_InstallConstants(d, constants) SWIG_Python_InstallConstants(d, constants) + + /* ----------------------------------------------------------------------------- + * global variable support code. + * ----------------------------------------------------------------------------- */ + + typedef struct swig_globalvar { + char *name; /* Name of global variable */ + PyObject *(*get_attr)(void); /* Return the current value */ + int (*set_attr)(PyObject *); /* Set the value */ + struct swig_globalvar *next; + } swig_globalvar; + + typedef struct swig_varlinkobject { + PyObject_HEAD + swig_globalvar *vars; + } swig_varlinkobject; + + SWIGINTERN PyObject * + swig_varlink_repr(swig_varlinkobject *SWIGUNUSEDPARM(v)) { + return PyString_FromString("<Swig global variables>"); + } + + SWIGINTERN PyObject * + swig_varlink_str(swig_varlinkobject *v) { + PyObject *str = PyString_FromString("("); + swig_globalvar *var; + for (var = v->vars; var; var=var->next) { + PyString_ConcatAndDel(&str,PyString_FromString(var->name)); + if (var->next) PyString_ConcatAndDel(&str,PyString_FromString(", ")); + } + PyString_ConcatAndDel(&str,PyString_FromString(")")); + return str; + } + + SWIGINTERN int + swig_varlink_print(swig_varlinkobject *v, FILE *fp, int SWIGUNUSEDPARM(flags)) { + PyObject *str = swig_varlink_str(v); + fprintf(fp,"Swig global variables "); + fprintf(fp,"%s\n", PyString_AsString(str)); + Py_DECREF(str); + return 0; + } + + SWIGINTERN void + swig_varlink_dealloc(swig_varlinkobject *v) { + swig_globalvar *var = v->vars; + while (var) { + swig_globalvar *n = var->next; + free(var->name); + free(var); + var = n; + } + } + + SWIGINTERN PyObject * + swig_varlink_getattr(swig_varlinkobject *v, char *n) { + PyObject *res = NULL; + swig_globalvar *var = v->vars; + while (var) { + if (strcmp(var->name,n) == 0) { + res = (*var->get_attr)(); + break; + } + var = var->next; + } + if (res == NULL && !PyErr_Occurred()) { + PyErr_SetString(PyExc_NameError,"Unknown C global variable"); + } + return res; + } + + SWIGINTERN int + swig_varlink_setattr(swig_varlinkobject *v, char *n, PyObject *p) { + int res = 1; + swig_globalvar *var = v->vars; + while (var) { + if (strcmp(var->name,n) == 0) { + res = (*var->set_attr)(p); + break; + } + var = var->next; + } + if (res == 1 && !PyErr_Occurred()) { + PyErr_SetString(PyExc_NameError,"Unknown C global variable"); + } + return res; + } + + SWIGINTERN PyTypeObject* + swig_varlink_type(void) { + static char varlink__doc__[] = "Swig var link object"; + static PyTypeObject varlink_type; + static int type_init = 0; + if (!type_init) { + const PyTypeObject tmp + = { + PyObject_HEAD_INIT(NULL) + 0, /* Number of items in variable part (ob_size) */ + (char *)"swigvarlink", /* Type name (tp_name) */ + sizeof(swig_varlinkobject), /* Basic size (tp_basicsize) */ + 0, /* Itemsize (tp_itemsize) */ + (destructor) swig_varlink_dealloc, /* Deallocator (tp_dealloc) */ + (printfunc) swig_varlink_print, /* Print (tp_print) */ + (getattrfunc) swig_varlink_getattr, /* get attr (tp_getattr) */ + (setattrfunc) swig_varlink_setattr, /* Set attr (tp_setattr) */ + 0, /* tp_compare */ + (reprfunc) swig_varlink_repr, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + (reprfunc)swig_varlink_str, /* tp_str */ + 0, /* tp_getattro */ + 0, /* tp_setattro */ + 0, /* tp_as_buffer */ + 0, /* tp_flags */ + varlink__doc__, /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ +#if PY_VERSION_HEX >= 0x02020000 + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* tp_iter -> tp_weaklist */ +#endif +#if PY_VERSION_HEX >= 0x02030000 + 0, /* tp_del */ +#endif +#ifdef COUNT_ALLOCS + 0,0,0,0 /* tp_alloc -> tp_next */ +#endif + }; + varlink_type = tmp; + varlink_type.ob_type = &PyType_Type; + type_init = 1; + } + return &varlink_type; + } + + /* Create a variable linking object for use later */ + SWIGINTERN PyObject * + SWIG_Python_newvarlink(void) { + swig_varlinkobject *result = PyObject_NEW(swig_varlinkobject, swig_varlink_type()); + if (result) { + result->vars = 0; + } + return ((PyObject*) result); + } + + SWIGINTERN void + SWIG_Python_addvarlink(PyObject *p, char *name, PyObject *(*get_attr)(void), int (*set_attr)(PyObject *p)) { + swig_varlinkobject *v = (swig_varlinkobject *) p; + swig_globalvar *gv = (swig_globalvar *) malloc(sizeof(swig_globalvar)); + if (gv) { + size_t size = strlen(name)+1; + gv->name = (char *)malloc(size); + if (gv->name) { + strncpy(gv->name,name,size); + gv->get_attr = get_attr; + gv->set_attr = set_attr; + gv->next = v->vars; + } + } + v->vars = gv; + } + + SWIGINTERN PyObject * + SWIG_globals(void) { + static PyObject *_SWIG_globals = 0; + if (!_SWIG_globals) _SWIG_globals = SWIG_newvarlink(); + return _SWIG_globals; + } + + /* ----------------------------------------------------------------------------- + * constants/methods manipulation + * ----------------------------------------------------------------------------- */ + + /* Install Constants */ + SWIGINTERN void + SWIG_Python_InstallConstants(PyObject *d, swig_const_info constants[]) { + PyObject *obj = 0; + size_t i; + for (i = 0; constants[i].type; ++i) { + switch(constants[i].type) { + case SWIG_PY_POINTER: + obj = SWIG_NewPointerObj(constants[i].pvalue, *(constants[i]).ptype,0); + break; + case SWIG_PY_BINARY: + obj = SWIG_NewPackedObj(constants[i].pvalue, constants[i].lvalue, *(constants[i].ptype)); + break; + default: + obj = 0; + break; + } + if (obj) { + PyDict_SetItemString(d, constants[i].name, obj); + Py_DECREF(obj); + } + } + } + + /* -----------------------------------------------------------------------------*/ + /* Fix SwigMethods to carry the callback ptrs when needed */ + /* -----------------------------------------------------------------------------*/ + + SWIGINTERN void + SWIG_Python_FixMethods(PyMethodDef *methods, + swig_const_info *const_table, + swig_type_info **types, + swig_type_info **types_initial) { + size_t i; + for (i = 0; methods[i].ml_name; ++i) { + const char *c = methods[i].ml_doc; + if (c && (c = strstr(c, "swig_ptr: "))) { + int j; + swig_const_info *ci = 0; + const char *name = c + 10; + for (j = 0; const_table[j].type; ++j) { + if (strncmp(const_table[j].name, name, + strlen(const_table[j].name)) == 0) { + ci = &(const_table[j]); + break; + } + } + if (ci) { + size_t shift = (ci->ptype) - types; + swig_type_info *ty = types_initial[shift]; + size_t ldoc = (c - methods[i].ml_doc); + size_t lptr = strlen(ty->name)+2*sizeof(void*)+2; + char *ndoc = (char*)malloc(ldoc + lptr + 10); + if (ndoc) { + char *buff = ndoc; + void *ptr = (ci->type == SWIG_PY_POINTER) ? ci->pvalue : 0; + if (ptr) { + strncpy(buff, methods[i].ml_doc, ldoc); + buff += ldoc; + strncpy(buff, "swig_ptr: ", 10); + buff += 10; + SWIG_PackVoidPtr(buff, ptr, ty->name, lptr); + methods[i].ml_doc = ndoc; + } + } + } + } + } + } + +#ifdef __cplusplus +} +#endif + +/* -----------------------------------------------------------------------------* + * Partial Init method + * -----------------------------------------------------------------------------*/ + +#ifdef __cplusplus +extern "C" +#endif +SWIGEXPORT void SWIG_init(void) { + PyObject *m, *d; + + /* Fix SwigMethods to carry the callback ptrs when needed */ + SWIG_Python_FixMethods(SwigMethods, swig_const_table, swig_types, swig_type_initial); + + m = Py_InitModule((char *) SWIG_name, SwigMethods); + d = PyModule_GetDict(m); + + SWIG_InitializeModule(0); + SWIG_InstallConstants(d,swig_const_table); + + +} + diff --git a/lib/tevent/libtalloc.m4 b/lib/tevent/libtalloc.m4 new file mode 100644 index 0000000000..a4c5b8a9d9 --- /dev/null +++ b/lib/tevent/libtalloc.m4 @@ -0,0 +1,7 @@ +AC_SUBST(TALLOC_OBJ) +AC_SUBST(TALLOC_CFLAGS) +AC_SUBST(TALLOC_LIBS) + +AC_CHECK_HEADER(talloc.h, + [AC_CHECK_LIB(talloc, talloc_init, [TALLOC_LIBS="-ltalloc"]) ], + [PKG_CHECK_MODULES(TALLOC, talloc)]) diff --git a/lib/tevent/libtevent.m4 b/lib/tevent/libtevent.m4 new file mode 100644 index 0000000000..ed76b03d4f --- /dev/null +++ b/lib/tevent/libtevent.m4 @@ -0,0 +1,49 @@ +dnl find the events sources. This is meant to work both for +dnl standalone builds, and builds of packages using libevents +if test x"$eventsdir" = "x"; then + eventsdir="" + eventspaths="$srcdir $srcdir/../samba4/source/lib/events $srcdir/lib/events $srcdir/events $srcdir/../events" + for d in $eventspaths; do + if test -f "$d/events.c"; then + eventsdir="$d" + AC_SUBST(eventsdir) + break; + fi + done + if test x"$eventsdir" = "x"; then + AC_MSG_ERROR([cannot find libevents source in $eventspaths]) + fi +fi + +EVENTS_OBJ="events.o events_select.o events_signal.o events_timed.o events_standard.o events_debug.o events_util.o" +AC_LIBREPLACE_NETWORK_CHECKS + +SMB_ENABLE(EVENTS_EPOLL, NO) +SMB_ENABLE(EVENTS_AIO, NO) +AC_CHECK_HEADERS(sys/epoll.h) +AC_CHECK_FUNCS(epoll_create) +if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x"yes"; then + EVENTS_OBJ="$EVENTS_OBJ events_epoll.o" + SMB_ENABLE(EVENTS_EPOLL,YES) + AC_DEFINE(HAVE_EVENTS_EPOLL, 1, [Whether epoll available]) + + # check for native Linux AIO interface + AC_CHECK_HEADERS(libaio.h) + AC_CHECK_LIB_EXT(aio, AIO_LIBS, io_getevents) + if test x"$ac_cv_header_libaio_h" = x"yes" -a x"$ac_cv_lib_ext_aio_io_getevents" = x"yes";then + EVENTS_OBJ="$EVENTS_OBJ events_aio.o" + SMB_ENABLE(EVENTS_AIO,YES) + AC_DEFINE(HAVE_LINUX_AIO, 1, [Whether Linux AIO is available]) + fi +fi + +AC_SUBST(EVENTS_OBJ) +SMB_EXT_LIB(LIBAIO_LINUX, $AIO_LIBS) + +EVENTS_CFLAGS="-I$eventsdir" +AC_SUBST(EVENTS_CFLAGS) + +EVENTS_LIBS="$AIO_LIBS" +AC_SUBST(EVENTS_LIBS) + + diff --git a/lib/tevent/pkg.m4 b/lib/tevent/pkg.m4 new file mode 100644 index 0000000000..a8b3d06c81 --- /dev/null +++ b/lib/tevent/pkg.m4 @@ -0,0 +1,156 @@ +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# +# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see <http://www.gnu.org/licenses/>. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# PKG_PROG_PKG_CONFIG([MIN-VERSION]) +# ---------------------------------- +AC_DEFUN([PKG_PROG_PKG_CONFIG], +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) +m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=m4_default([$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi + +fi[]dnl +])# PKG_PROG_PKG_CONFIG + +# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# +# Check to see whether a particular set of modules exists. Similar +# to PKG_CHECK_MODULES(), but does not set variables or print errors. +# +# +# Similar to PKG_CHECK_MODULES, make sure that the first instance of +# this or PKG_CHECK_MODULES is called, or make sure to call +# PKG_CHECK_EXISTS manually +# -------------------------------------------------------------- +AC_DEFUN([PKG_CHECK_EXISTS], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +if test -n "$PKG_CONFIG" && \ + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then + m4_ifval([$2], [$2], [:]) +m4_ifvaln([$3], [else + $3])dnl +fi]) + + +# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +# --------------------------------------------- +m4_define([_PKG_CONFIG], +[if test -n "$PKG_CONFIG"; then + if test -n "$$1"; then + pkg_cv_[]$1="$$1" + else + PKG_CHECK_EXISTS([$3], + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], + [pkg_failed=yes]) + fi +else + pkg_failed=untried +fi[]dnl +])# _PKG_CONFIG + +# _PKG_SHORT_ERRORS_SUPPORTED +# ----------------------------- +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi[]dnl +])# _PKG_SHORT_ERRORS_SUPPORTED + + +# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +# [ACTION-IF-NOT-FOUND]) +# +# +# Note that if there is a possibility the first call to +# PKG_CHECK_MODULES might not happen, you should be sure to include an +# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac +# +# +# -------------------------------------------------------------- +AC_DEFUN([PKG_CHECK_MODULES], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl + +pkg_failed=no +AC_MSG_CHECKING([for $1]) + +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) + +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS +and $1[]_LIBS to avoid the need to call pkg-config. +See the pkg-config man page for more details.]) + +if test $pkg_failed = yes; then + _PKG_SHORT_ERRORS_SUPPORTED + if test $_pkg_short_errors_supported = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"` + else + $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"` + fi + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD + + ifelse([$4], , [AC_MSG_ERROR(dnl +[Package requirements ($2) were not met: + +$$1_PKG_ERRORS + +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +_PKG_TEXT +])], + [AC_MSG_RESULT([no]) + $4]) +elif test $pkg_failed = untried; then + ifelse([$4], , [AC_MSG_FAILURE(dnl +[The pkg-config script could not be found or is too old. Make sure it +is in your PATH or set the PKG_CONFIG environment variable to the full +path to pkg-config. + +_PKG_TEXT + +To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.])], + [$4]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + AC_MSG_RESULT([yes]) + ifelse([$3], , :, [$3]) +fi[]dnl +])# PKG_CHECK_MODULES diff --git a/lib/tevent/rules.mk b/lib/tevent/rules.mk new file mode 100644 index 0000000000..cfe548039b --- /dev/null +++ b/lib/tevent/rules.mk @@ -0,0 +1,21 @@ +.SUFFIXES: .i _wrap.c + +.i_wrap.c: + $(SWIG) -O -Wall -python -keyword $< + +showflags:: + @echo 'libevents will be compiled with flags:' + @echo ' CFLAGS = $(CFLAGS)' + @echo ' CPPFLAGS = $(CPPFLAGS)' + @echo ' LDFLAGS = $(LDFLAGS)' + @echo ' LIBS = $(LIBS)' + +.SUFFIXES: .c .o + +.c.o: + @echo Compiling $*.c + @mkdir -p `dirname $@` + @$(CC) $(PICFLAG) $(CFLAGS) -c $< -o $@ + +distclean:: + rm -f *~ */*~ diff --git a/lib/tevent/tests.py b/lib/tevent/tests.py new file mode 100644 index 0000000000..006426207e --- /dev/null +++ b/lib/tevent/tests.py @@ -0,0 +1,31 @@ +#!/usr/bin/python + +# Unix SMB/CIFS implementation. +# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007 +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +from samba import events +import unittest + +# Just test the bindings are there and that calling them doesn't crash +# anything. + +class EventTestCase(unittest.TestCase): + def test_create(self): + self.assertTrue(events.event() is not None) + + def test_loop_wait(self): + self.assertEquals(0, events.event().loop_wait()) diff --git a/lib/tevent/testsuite.c b/lib/tevent/testsuite.c new file mode 100644 index 0000000000..7f2729ceff --- /dev/null +++ b/lib/tevent/testsuite.c @@ -0,0 +1,145 @@ +/* + Unix SMB/CIFS implementation. + + testing of the events subsystem + + Copyright (C) Stefan Metzmacher + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "lib/events/events.h" +#include "system/filesys.h" +#include "torture/torture.h" + +static int fde_count; + +static void fde_handler(struct event_context *ev_ctx, struct fd_event *f, + uint16_t flags, void *private) +{ + int *fd = (int *)private; + char c; +#ifdef SA_SIGINFO + kill(getpid(), SIGUSR1); +#endif + kill(getpid(), SIGALRM); + read(fd[0], &c, 1); + write(fd[1], &c, 1); + fde_count++; +} + +static void finished_handler(struct event_context *ev_ctx, struct timed_event *te, + struct timeval tval, void *private) +{ + int *finished = (int *)private; + (*finished) = 1; +} + +static void count_handler(struct event_context *ev_ctx, struct signal_event *te, + int signum, int count, void *info, void *private) +{ + int *countp = (int *)private; + (*countp) += count; +} + +static bool test_event_context(struct torture_context *test, + const void *test_data) +{ + struct event_context *ev_ctx; + int fd[2] = { -1, -1 }; + const char *backend = (const char *)test_data; + int alarm_count=0, info_count=0; + struct fd_event *fde; + struct signal_event *se1, *se2, *se3; + int finished=0; + struct timeval t; + char c = 0; + + ev_ctx = event_context_init_byname(test, backend); + if (ev_ctx == NULL) { + torture_comment(test, "event backend '%s' not supported\n", backend); + return true; + } + + torture_comment(test, "Testing event backend '%s'\n", backend); + + /* reset globals */ + fde_count = 0; + + /* create a pipe */ + pipe(fd); + + fde = event_add_fd(ev_ctx, ev_ctx, fd[0], EVENT_FD_READ|EVENT_FD_AUTOCLOSE, + fde_handler, fd); + + event_add_timed(ev_ctx, ev_ctx, timeval_current_ofs(2,0), + finished_handler, &finished); + + se1 = event_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESTART, count_handler, &alarm_count); + se2 = event_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESETHAND, count_handler, &alarm_count); +#ifdef SA_SIGINFO + se3 = event_add_signal(ev_ctx, ev_ctx, SIGUSR1, SA_SIGINFO, count_handler, &info_count); +#endif + + write(fd[1], &c, 1); + + t = timeval_current(); + while (!finished) { + errno = 0; + if (event_loop_once(ev_ctx) == -1) { + talloc_free(ev_ctx); + torture_fail(test, talloc_asprintf(test, "Failed event loop %s\n", strerror(errno))); + } + } + + talloc_free(fde); + close(fd[1]); + + while (alarm_count < fde_count+1) { + if (event_loop_once(ev_ctx) == -1) { + break; + } + } + + torture_comment(test, "Got %.2f pipe events/sec\n", fde_count/timeval_elapsed(&t)); + + talloc_free(se1); + + torture_assert_int_equal(test, alarm_count, 1+fde_count, "alarm count mismatch"); + +#ifdef SA_SIGINFO + talloc_free(se3); + torture_assert_int_equal(test, info_count, fde_count, "info count mismatch"); +#endif + + talloc_free(ev_ctx); + + return true; +} + +struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx) +{ + struct torture_suite *suite = torture_suite_create(mem_ctx, "EVENT"); + const char **list = event_backend_list(suite); + int i; + + for (i=0;list && list[i];i++) { + torture_suite_add_simple_tcase_const(suite, list[i], + test_event_context, + (const void *)list[i]); + } + + return suite; +} diff --git a/lib/tevent/tevent.c b/lib/tevent/tevent.c new file mode 100644 index 0000000000..52699d968e --- /dev/null +++ b/lib/tevent/tevent.c @@ -0,0 +1,310 @@ +/* + Unix SMB/CIFS implementation. + main select loop and event handling + Copyright (C) Andrew Tridgell 2003 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + PLEASE READ THIS BEFORE MODIFYING! + + This module is a general abstraction for the main select loop and + event handling. Do not ever put any localised hacks in here, instead + register one of the possible event types and implement that event + somewhere else. + + There are 2 types of event handling that are handled in this module: + + 1) a file descriptor becoming readable or writeable. This is mostly + used for network sockets, but can be used for any type of file + descriptor. You may only register one handler for each file + descriptor/io combination or you will get unpredictable results + (this means that you can have a handler for read events, and a + separate handler for write events, but not two handlers that are + both handling read events) + + 2) a timed event. You can register an event that happens at a + specific time. You can register as many of these as you + like. They are single shot - add a new timed event in the event + handler to get another event. + + To setup a set of events you first need to create a event_context + structure using the function event_context_init(); This returns a + 'struct event_context' that you use in all subsequent calls. + + After that you can add/remove events that you are interested in + using event_add_*() and talloc_free() + + Finally, you call event_loop_wait_once() to block waiting for one of the + events to occor or event_loop_wait() which will loop + forever. + +*/ +#include "replace.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" + +struct event_ops_list { + struct event_ops_list *next, *prev; + const char *name; + const struct event_ops *ops; +}; + +/* list of registered event backends */ +static struct event_ops_list *event_backends = NULL; +static char *event_default_backend = NULL; + +/* + register an events backend +*/ +bool event_register_backend(const char *name, const struct event_ops *ops) +{ + struct event_ops_list *e; + + for (e = event_backends; e != NULL; e = e->next) { + if (0 == strcmp(e->name, name)) { + /* already registered, skip it */ + return true; + } + } + + e = talloc(talloc_autofree_context(), struct event_ops_list); + if (e == NULL) return false; + + e->name = name; + e->ops = ops; + DLIST_ADD(event_backends, e); + + return true; +} + +/* + set the default event backend + */ +void event_set_default_backend(const char *backend) +{ + if (event_default_backend) free(event_default_backend); + event_default_backend = strdup(backend); +} + +/* + initialise backends if not already done +*/ +static void event_backend_init(void) +{ + events_select_init(); + events_standard_init(); +#if HAVE_EVENTS_EPOLL + events_epoll_init(); +#endif +#if HAVE_LINUX_AIO + events_aio_init(); +#endif +} + +/* + list available backends +*/ +const char **event_backend_list(TALLOC_CTX *mem_ctx) +{ + const char **list = NULL; + struct event_ops_list *e; + + event_backend_init(); + + for (e=event_backends;e;e=e->next) { + list = ev_str_list_add(list, e->name); + } + + talloc_steal(mem_ctx, list); + + return list; +} + +/* + create a event_context structure for a specific implemementation. + This must be the first events call, and all subsequent calls pass + this event_context as the first element. Event handlers also + receive this as their first argument. + + This function is for allowing third-party-applications to hook in gluecode + to their own event loop code, so that they can make async usage of our client libs + + NOTE: use event_context_init() inside of samba! +*/ +static struct event_context *event_context_init_ops(TALLOC_CTX *mem_ctx, + const struct event_ops *ops) +{ + struct event_context *ev; + int ret; + + ev = talloc_zero(mem_ctx, struct event_context); + if (!ev) return NULL; + + ev->ops = ops; + + ret = ev->ops->context_init(ev); + if (ret != 0) { + talloc_free(ev); + return NULL; + } + + return ev; +} + +/* + create a event_context structure. This must be the first events + call, and all subsequent calls pass this event_context as the first + element. Event handlers also receive this as their first argument. +*/ +struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name) +{ + struct event_ops_list *e; + + event_backend_init(); + + if (name == NULL) { + name = event_default_backend; + } + if (name == NULL) { + name = "standard"; + } + + for (e=event_backends;e;e=e->next) { + if (strcmp(name, e->name) == 0) { + return event_context_init_ops(mem_ctx, e->ops); + } + } + return NULL; +} + + +/* + create a event_context structure. This must be the first events + call, and all subsequent calls pass this event_context as the first + element. Event handlers also receive this as their first argument. +*/ +struct event_context *event_context_init(TALLOC_CTX *mem_ctx) +{ + return event_context_init_byname(mem_ctx, NULL); +} + +/* + add a fd based event + return NULL on failure (memory allocation error) + + if flags contains EVENT_FD_AUTOCLOSE then the fd will be closed when + the returned fd_event context is freed +*/ +struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, event_fd_handler_t handler, + void *private_data) +{ + return ev->ops->add_fd(ev, mem_ctx, fd, flags, handler, private_data); +} + +/* + add a disk aio event +*/ +struct aio_event *event_add_aio(struct event_context *ev, + TALLOC_CTX *mem_ctx, + struct iocb *iocb, + event_aio_handler_t handler, + void *private_data) +{ + if (ev->ops->add_aio == NULL) return NULL; + return ev->ops->add_aio(ev, mem_ctx, iocb, handler, private_data); +} + +/* + return the fd event flags +*/ +uint16_t event_get_fd_flags(struct fd_event *fde) +{ + if (!fde) return 0; + return fde->event_ctx->ops->get_fd_flags(fde); +} + +/* + set the fd event flags +*/ +void event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + if (!fde) return; + fde->event_ctx->ops->set_fd_flags(fde, flags); +} + +/* + add a timed event + return NULL on failure +*/ +struct timed_event *event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx, + struct timeval next_event, + event_timed_handler_t handler, + void *private_data) +{ + return ev->ops->add_timed(ev, mem_ctx, next_event, handler, private_data); +} + +/* + add a signal event + + sa_flags are flags to sigaction(2) + + return NULL on failure +*/ +struct signal_event *event_add_signal(struct event_context *ev, TALLOC_CTX *mem_ctx, + int signum, + int sa_flags, + event_signal_handler_t handler, + void *private_data) +{ + return ev->ops->add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data); +} + +/* + do a single event loop using the events defined in ev +*/ +int event_loop_once(struct event_context *ev) +{ + return ev->ops->loop_once(ev); +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +int event_loop_wait(struct event_context *ev) +{ + return ev->ops->loop_wait(ev); +} + +/* + find an event context that is a parent of the given memory context, + or create a new event context as a child of the given context if + none is found + + This should be used in preference to event_context_init() in places + where you would prefer to use the existing event context if possible + (which is most situations) +*/ +struct event_context *event_context_find(TALLOC_CTX *mem_ctx) +{ + struct event_context *ev = talloc_find_parent_bytype(mem_ctx, struct event_context); + if (ev == NULL) { + ev = event_context_init(mem_ctx); + } + return ev; +} diff --git a/lib/tevent/tevent.h b/lib/tevent/tevent.h new file mode 100644 index 0000000000..1ece49697f --- /dev/null +++ b/lib/tevent/tevent.h @@ -0,0 +1,98 @@ +/* + Unix SMB/CIFS implementation. + + generalised event loop handling + + Copyright (C) Andrew Tridgell 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef __EVENTS_H__ +#define __EVENTS_H__ + +#include <stdint.h> +#include <talloc.h> + +struct event_context; +struct event_ops; +struct fd_event; +struct timed_event; +struct aio_event; +struct signal_event; + +/* event handler types */ +typedef void (*event_fd_handler_t)(struct event_context *, struct fd_event *, + uint16_t , void *); +typedef void (*event_timed_handler_t)(struct event_context *, struct timed_event *, + struct timeval , void *); +typedef void (*event_signal_handler_t)(struct event_context *, struct signal_event *, + int , int, void *, void *); +typedef void (*event_aio_handler_t)(struct event_context *, struct aio_event *, + int, void *); + +#ifdef _SAMBA_BUILD_ +struct event_context *s4_event_context_init(TALLOC_CTX *mem_ctx); +#endif + +struct event_context *event_context_init(TALLOC_CTX *mem_ctx); +struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name); +const char **event_backend_list(TALLOC_CTX *mem_ctx); +void event_set_default_backend(const char *backend); + +struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, event_fd_handler_t handler, + void *private_data); + +struct timed_event *event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx, + struct timeval next_event, + event_timed_handler_t handler, + void *private_data); + +struct signal_event *event_add_signal(struct event_context *ev, TALLOC_CTX *mem_ctx, + int signum, int sa_flags, + event_signal_handler_t handler, + void *private_data); + +struct iocb; +struct aio_event *event_add_aio(struct event_context *ev, + TALLOC_CTX *mem_ctx, + struct iocb *iocb, + event_aio_handler_t handler, + void *private_data); + +int event_loop_once(struct event_context *ev); +int event_loop_wait(struct event_context *ev); + +uint16_t event_get_fd_flags(struct fd_event *fde); +void event_set_fd_flags(struct fd_event *fde, uint16_t flags); + +struct event_context *event_context_find(TALLOC_CTX *mem_ctx); + +/* bits for file descriptor event flags */ +#define EVENT_FD_READ 1 +#define EVENT_FD_WRITE 2 +#define EVENT_FD_AUTOCLOSE 4 + +#define EVENT_FD_WRITEABLE(fde) \ + event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_WRITE) +#define EVENT_FD_READABLE(fde) \ + event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_READ) + +#define EVENT_FD_NOT_WRITEABLE(fde) \ + event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_WRITE) +#define EVENT_FD_NOT_READABLE(fde) \ + event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_READ) + +#endif /* __EVENTS_H__ */ diff --git a/lib/tevent/tevent.mk b/lib/tevent/tevent.mk new file mode 100644 index 0000000000..2bc6221689 --- /dev/null +++ b/lib/tevent/tevent.mk @@ -0,0 +1,59 @@ + +EVENTS_SONAME = libevents.$(SHLIBEXT).0 +EVENTS_SOLIB = libevents.$(SHLIBEXT).$(PACKAGE_VERSION) + +libevents.a: $(EVENTS_OBJ) + ar -rv libevents.a $(EVENTS_OBJ) + +libevents.$(SHLIBEXT): $(EVENTS_SOLIB) + ln -fs $< $@ + +$(EVENTS_SONAME): $(EVENTS_SOLIB) + ln -fs $< $@ + +dirs:: + @mkdir -p lib + +installdirs:: + mkdir -p $(DESTDIR)$(includedir) + mkdir -p $(DESTDIR)$(libdir) + mkdir -p $(DESTDIR)$(libdir)/pkgconfig + +installheaders:: installdirs + cp $(srcdir)/events.h $(DESTDIR)$(includedir) + +installlibs:: installdirs + cp events.pc $(DESTDIR)$(libdir)/pkgconfig + cp libevents.a $(EVENTS_SOLIB) $(DESTDIR)$(libdir) + +install:: all installdirs installheaders installlibs $(PYTHON_INSTALL_TARGET) + +clean:: + rm -f $(EVENTS_SONAME) $(EVENTS_SOLIB) libevents.a libevents.$(SHLIBEXT) + rm -f events.pc + rm -f _libevents.$(SHLIBEXT) + + +#python stuff + +check-python:: build-python + $(LIB_PATH_VAR)=. PYTHONPATH=".:$(eventsdir)" $(PYTHON) $(eventsdir)/python/tests/simple.py + +install-swig:: + mkdir -p $(DESTDIR)`$(SWIG) -swiglib` + cp events.i $(DESTDIR)`$(SWIG) -swiglib` + +build-python:: _libevents.$(SHLIBEXT) + +events_wrap.o: $(eventsdir)/events_wrap.c + $(CC) $(PICFLAG) -c $(eventsdir)/events_wrap.c $(CFLAGS) `$(PYTHON_CONFIG) --cflags` + +_libevents.$(SHLIBEXT): libevents.$(SHLIBEXT) events_wrap.o + $(SHLD) $(SHLD_FLAGS) -o $@ events_wrap.o -L. -levents `$(PYTHON_CONFIG) --libs` + +install-python:: build-python + mkdir -p $(DESTDIR)`$(PYTHON) -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(0, prefix='$(prefix)')"` \ + $(DESTDIR)`$(PYTHON) -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(1, prefix='$(prefix)')"` + cp $(eventsdir)/events.py $(DESTDIR)`$(PYTHON) -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(0, prefix='$(prefix)')"` + cp _libevents.$(SHLIBEXT) $(DESTDIR)`$(PYTHON) -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(1, prefix='$(prefix)')"` + diff --git a/lib/tevent/tevent.pc.in b/lib/tevent/tevent.pc.in new file mode 100644 index 0000000000..4a4c012d73 --- /dev/null +++ b/lib/tevent/tevent.pc.in @@ -0,0 +1,11 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: events +Description: An event system library +Version: @PACKAGE_VERSION@ +Libs: -L${libdir} -levents +Cflags: -I${includedir} +URL: http://samba.org/ diff --git a/lib/tevent/tevent_aio.c b/lib/tevent/tevent_aio.c new file mode 100644 index 0000000000..e30213acbc --- /dev/null +++ b/lib/tevent/tevent_aio.c @@ -0,0 +1,567 @@ +/* + Unix SMB/CIFS implementation. + + main select loop and event handling - aio/epoll hybrid implementation + + Copyright (C) Andrew Tridgell 2006 + + based on events_standard.c + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ +/* + this is a very strange beast. The Linux AIO implementation doesn't + yet integrate properly with epoll, but there is a kernel patch that + allows the aio wait primitives to be used to wait for epoll events, + and this can be used to give us a unified event system incorporating + both aio events and epoll events + + this is _very_ experimental code +*/ + +#include "system/filesys.h" +#include "replace.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" +#include <sys/epoll.h> +#include <libaio.h> + +#define MAX_AIO_QUEUE_DEPTH 100 +#ifndef IOCB_CMD_EPOLL_WAIT +#define IOCB_CMD_EPOLL_WAIT 9 +#endif + +struct aio_event_context { + /* a pointer back to the generic event_context */ + struct event_context *ev; + + /* list of filedescriptor events */ + struct fd_event *fd_events; + + /* number of registered fd event handlers */ + int num_fd_events; + + uint32_t destruction_count; + + io_context_t ioctx; + + struct epoll_event epevent[MAX_AIO_QUEUE_DEPTH]; + + struct iocb *epoll_iocb; + + int epoll_fd; + int is_epoll_set; + pid_t pid; +}; + +struct aio_event { + struct event_context *event_ctx; + struct iocb iocb; + void *private_data; + event_aio_handler_t handler; +}; + +/* + map from EVENT_FD_* to EPOLLIN/EPOLLOUT +*/ +static uint32_t epoll_map_flags(uint16_t flags) +{ + uint32_t ret = 0; + if (flags & EVENT_FD_READ) ret |= (EPOLLIN | EPOLLERR | EPOLLHUP); + if (flags & EVENT_FD_WRITE) ret |= (EPOLLOUT | EPOLLERR | EPOLLHUP); + return ret; +} + +/* + free the epoll fd +*/ +static int aio_ctx_destructor(struct aio_event_context *aio_ev) +{ + io_queue_release(aio_ev->ioctx); + close(aio_ev->epoll_fd); + aio_ev->epoll_fd = -1; + return 0; +} + +static void epoll_add_event(struct aio_event_context *aio_ev, struct fd_event *fde); + +/* + reopen the epoll handle when our pid changes + see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an + demonstration of why this is needed + */ +static void epoll_check_reopen(struct aio_event_context *aio_ev) +{ + struct fd_event *fde; + + if (aio_ev->pid == getpid()) { + return; + } + + close(aio_ev->epoll_fd); + aio_ev->epoll_fd = epoll_create(MAX_AIO_QUEUE_DEPTH); + if (aio_ev->epoll_fd == -1) { + ev_debug(aio_ev->ev, EV_DEBUG_FATAL, "Failed to recreate epoll handle after fork\n"); + return; + } + aio_ev->pid = getpid(); + for (fde=aio_ev->fd_events;fde;fde=fde->next) { + epoll_add_event(aio_ev, fde); + } +} + +#define EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT (1<<0) +#define EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR (1<<1) +#define EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR (1<<2) + +/* + add the epoll event to the given fd_event +*/ +static void epoll_add_event(struct aio_event_context *aio_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (aio_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if we don't want events yet, don't add an aio_event */ + if (fde->flags == 0) return; + + memset(&event, 0, sizeof(event)); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + epoll_ctl(aio_ev->epoll_fd, EPOLL_CTL_ADD, fde->fd, &event); + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +/* + delete the epoll event for given fd_event +*/ +static void epoll_del_event(struct aio_event_context *aio_ev, struct fd_event *fde) +{ + struct epoll_event event; + + DLIST_REMOVE(aio_ev->fd_events, fde); + + if (aio_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if there's no aio_event, we don't need to delete it */ + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT)) return; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + epoll_ctl(aio_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event); + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; +} + +/* + change the epoll event to the given fd_event +*/ +static void epoll_mod_event(struct aio_event_context *aio_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (aio_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + epoll_ctl(aio_ev->epoll_fd, EPOLL_CTL_MOD, fde->fd, &event); + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +static void epoll_change_event(struct aio_event_context *aio_ev, struct fd_event *fde) +{ + bool got_error = (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR); + bool want_read = (fde->flags & EVENT_FD_READ); + bool want_write= (fde->flags & EVENT_FD_WRITE); + + if (aio_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* there's already an event */ + if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT) { + if (want_read || (want_write && !got_error)) { + epoll_mod_event(aio_ev, fde); + return; + } + epoll_del_event(aio_ev, fde); + return; + } + + /* there's no aio_event attached to the fde */ + if (want_read || (want_write && !got_error)) { + DLIST_ADD(aio_ev->fd_events, fde); + epoll_add_event(aio_ev, fde); + return; + } +} + +static int setup_epoll_wait(struct aio_event_context *aio_ev) +{ + if (aio_ev->is_epoll_set) { + return 0; + } + memset(aio_ev->epoll_iocb, 0, sizeof(*aio_ev->epoll_iocb)); + aio_ev->epoll_iocb->aio_fildes = aio_ev->epoll_fd; + aio_ev->epoll_iocb->aio_lio_opcode = IOCB_CMD_EPOLL_WAIT; + aio_ev->epoll_iocb->aio_reqprio = 0; + + aio_ev->epoll_iocb->u.c.nbytes = MAX_AIO_QUEUE_DEPTH; + aio_ev->epoll_iocb->u.c.offset = -1; + aio_ev->epoll_iocb->u.c.buf = aio_ev->epevent; + + if (io_submit(aio_ev->ioctx, 1, &aio_ev->epoll_iocb) != 1) { + return -1; + } + aio_ev->is_epoll_set = 1; + + return 0; +} + + +/* + event loop handling using aio/epoll hybrid +*/ +static int aio_event_loop(struct aio_event_context *aio_ev, struct timeval *tvalp) +{ + int ret, i; + uint32_t destruction_count = ++aio_ev->destruction_count; + struct timespec timeout; + struct io_event events[8]; + + if (aio_ev->epoll_fd == -1) return -1; + + if (aio_ev->ev->num_signal_handlers && + common_event_check_signal(aio_ev->ev)) { + return 0; + } + + if (tvalp) { + timeout.tv_sec = tvalp->tv_sec; + timeout.tv_nsec = tvalp->tv_usec; + timeout.tv_nsec *= 1000; + } + + if (setup_epoll_wait(aio_ev) < 0) + return -1; + + ret = io_getevents(aio_ev->ioctx, 1, 8, + events, tvalp?&timeout:NULL); + + if (ret == -EINTR) { + if (aio_ev->ev->num_signal_handlers) { + common_event_check_signal(aio_ev->ev); + } + return 0; + } + + if (ret == 0 && tvalp) { + /* we don't care about a possible delay here */ + common_event_loop_timer_delay(aio_ev->ev); + return 0; + } + + for (i=0;i<ret;i++) { + struct io_event *event = &events[i]; + struct iocb *finished = event->obj; + + switch (finished->aio_lio_opcode) { + case IO_CMD_PWRITE: + case IO_CMD_PREAD: { + struct aio_event *ae = talloc_get_type(finished->data, + struct aio_event); + if (ae) { + talloc_set_destructor(ae, NULL); + ae->handler(ae->event_ctx, ae, + event->res, ae->private_data); + talloc_free(ae); + } + break; + } + case IOCB_CMD_EPOLL_WAIT: { + struct epoll_event *ep = (struct epoll_event *)finished->u.c.buf; + struct fd_event *fde; + uint16_t flags = 0; + int j; + + aio_ev->is_epoll_set = 0; + + for (j=0; j<event->res; j++, ep++) { + fde = talloc_get_type(ep->data.ptr, + struct fd_event); + if (fde == NULL) { + return -1; + } + if (ep->events & (EPOLLHUP|EPOLLERR)) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR; + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR)) { + epoll_del_event(aio_ev, fde); + continue; + } + flags |= EVENT_FD_READ; + } + if (ep->events & EPOLLIN) flags |= EVENT_FD_READ; + if (ep->events & EPOLLOUT) flags |= EVENT_FD_WRITE; + if (flags) { + fde->handler(aio_ev->ev, fde, flags, fde->private_data); + } + } + break; + } + } + if (destruction_count != aio_ev->destruction_count) { + return 0; + } + } + + return 0; +} + +/* + create a aio_event_context structure. +*/ +static int aio_event_context_init(struct event_context *ev) +{ + struct aio_event_context *aio_ev; + + aio_ev = talloc_zero(ev, struct aio_event_context); + if (!aio_ev) return -1; + + aio_ev->ev = ev; + aio_ev->epoll_iocb = talloc(aio_ev, struct iocb); + + if (io_queue_init(MAX_AIO_QUEUE_DEPTH, &aio_ev->ioctx) != 0) { + talloc_free(aio_ev); + return -1; + } + + aio_ev->epoll_fd = epoll_create(MAX_AIO_QUEUE_DEPTH); + if (aio_ev->epoll_fd == -1) { + talloc_free(aio_ev); + return -1; + } + aio_ev->pid = getpid(); + + talloc_set_destructor(aio_ev, aio_ctx_destructor); + + ev->additional_data = aio_ev; + + if (setup_epoll_wait(aio_ev) < 0) { + talloc_free(aio_ev); + return -1; + } + + return 0; +} + +/* + destroy an fd_event +*/ +static int aio_event_fd_destructor(struct fd_event *fde) +{ + struct event_context *ev = fde->event_ctx; + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + + epoll_check_reopen(aio_ev); + + aio_ev->num_fd_events--; + aio_ev->destruction_count++; + + epoll_del_event(aio_ev, fde); + + if (fde->flags & EVENT_FD_AUTOCLOSE) { + close(fde->fd); + fde->fd = -1; + } + + return 0; +} + +/* + add a fd based event + return NULL on failure (memory allocation error) +*/ +static struct fd_event *aio_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data) +{ + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + struct fd_event *fde; + + epoll_check_reopen(aio_ev); + + fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event); + if (!fde) return NULL; + + fde->event_ctx = ev; + fde->fd = fd; + fde->flags = flags; + fde->handler = handler; + fde->private_data = private_data; + fde->additional_flags = 0; + fde->additional_data = NULL; + + aio_ev->num_fd_events++; + talloc_set_destructor(fde, aio_event_fd_destructor); + + DLIST_ADD(aio_ev->fd_events, fde); + epoll_add_event(aio_ev, fde); + + return fde; +} + + +/* + return the fd event flags +*/ +static uint16_t aio_event_get_fd_flags(struct fd_event *fde) +{ + return fde->flags; +} + +/* + set the fd event flags +*/ +static void aio_event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + struct event_context *ev; + struct aio_event_context *aio_ev; + + if (fde->flags == flags) return; + + ev = fde->event_ctx; + aio_ev = talloc_get_type(ev->additional_data, struct aio_event_context); + + fde->flags = flags; + + epoll_check_reopen(aio_ev); + + epoll_change_event(aio_ev, fde); +} + +/* + do a single event loop using the events defined in ev +*/ +static int aio_event_loop_once(struct event_context *ev) +{ + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + struct timeval tval; + + tval = common_event_loop_timer_delay(ev); + if (ev_timeval_is_zero(&tval)) { + return 0; + } + + epoll_check_reopen(aio_ev); + + return aio_event_loop(aio_ev, &tval); +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +static int aio_event_loop_wait(struct event_context *ev) +{ + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + while (aio_ev->num_fd_events) { + if (aio_event_loop_once(ev) != 0) { + break; + } + } + + return 0; +} + +/* + called when a disk IO event needs to be cancelled +*/ +static int aio_destructor(struct aio_event *ae) +{ + struct event_context *ev = ae->event_ctx; + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + struct io_event result; + io_cancel(aio_ev->ioctx, &ae->iocb, &result); + /* TODO: handle errors from io_cancel()! */ + return 0; +} + +/* submit an aio disk IO event */ +static struct aio_event *aio_event_add_aio(struct event_context *ev, + TALLOC_CTX *mem_ctx, + struct iocb *iocb, + event_aio_handler_t handler, + void *private_data) +{ + struct aio_event_context *aio_ev = talloc_get_type(ev->additional_data, + struct aio_event_context); + struct iocb *iocbp; + struct aio_event *ae = talloc(mem_ctx?mem_ctx:ev, struct aio_event); + if (ae == NULL) return NULL; + + ae->event_ctx = ev; + ae->iocb = *iocb; + ae->handler = handler; + ae->private_data = private_data; + iocbp = &ae->iocb; + + if (io_submit(aio_ev->ioctx, 1, &iocbp) != 1) { + talloc_free(ae); + return NULL; + } + ae->iocb.data = ae; + talloc_set_destructor(ae, aio_destructor); + + return ae; +} + +static const struct event_ops aio_event_ops = { + .context_init = aio_event_context_init, + .add_fd = aio_event_add_fd, + .add_aio = aio_event_add_aio, + .get_fd_flags = aio_event_get_fd_flags, + .set_fd_flags = aio_event_set_fd_flags, + .add_timed = common_event_add_timed, + .add_signal = common_event_add_signal, + .loop_once = aio_event_loop_once, + .loop_wait = aio_event_loop_wait, +}; + +bool events_aio_init(void) +{ + return event_register_backend("aio", &aio_event_ops); +} + diff --git a/lib/tevent/tevent_debug.c b/lib/tevent/tevent_debug.c new file mode 100644 index 0000000000..233844f024 --- /dev/null +++ b/lib/tevent/tevent_debug.c @@ -0,0 +1,83 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2005 + Copyright (C) Jelmer Vernooij 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "events.h" +#include "events_internal.h" + +/******************************************************************** + * Debug wrapper functions, modeled (with lot's of code copied as is) + * after the ev debug wrapper functions + ********************************************************************/ + +/* + this allows the user to choose their own debug function +*/ +int ev_set_debug(struct event_context *ev, + void (*debug)(void *context, enum ev_debug_level level, + const char *fmt, va_list ap), + void *context) +{ + ev->debug_ops.debug = debug; + ev->debug_ops.context = context; + return 0; +} + +/* + debug function for ev_set_debug_stderr +*/ +void ev_debug_stderr(void *context, enum ev_debug_level level, + const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0); +void ev_debug_stderr(void *context, enum ev_debug_level level, + const char *fmt, va_list ap) +{ + if (level <= EV_DEBUG_WARNING) { + vfprintf(stderr, fmt, ap); + } +} + +/* + convenience function to setup debug messages on stderr + messages of level EV_DEBUG_WARNING and higher are printed +*/ +int ev_set_debug_stderr(struct event_context *ev) +{ + return ev_set_debug(ev, ev_debug_stderr, ev); +} + +/* + * log a message + * + * The default debug action is to ignore debugging messages. + * This is the most appropriate action for a library. + * Applications using the library must decide where to + * redirect debugging messages +*/ +void ev_debug(struct event_context *ev, enum ev_debug_level level, const char *fmt, ...) +{ + va_list ap; + if (ev->debug_ops.debug == NULL) { + return; + } + va_start(ap, fmt); + ev->debug_ops.debug(ev->debug_ops.context, level, fmt, ap); + va_end(ap); +} + diff --git a/lib/tevent/tevent_epoll.c b/lib/tevent/tevent_epoll.c new file mode 100644 index 0000000000..d46d5c2bbc --- /dev/null +++ b/lib/tevent/tevent_epoll.c @@ -0,0 +1,482 @@ +/* + Unix SMB/CIFS implementation. + + main select loop and event handling - epoll implementation + + Copyright (C) Andrew Tridgell 2003-2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "system/filesys.h" +#include "system/network.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" +#include <sys/epoll.h> + +struct epoll_event_context { + /* a pointer back to the generic event_context */ + struct event_context *ev; + + /* list of filedescriptor events */ + struct fd_event *fd_events; + + /* number of registered fd event handlers */ + int num_fd_events; + + /* this is changed by the destructors for the fd event + type. It is used to detect event destruction by event + handlers, which means the code that is calling the event + handler needs to assume that the linked list is no longer + valid + */ + uint32_t destruction_count; + + /* when using epoll this is the handle from epoll_create */ + int epoll_fd; + + pid_t pid; +}; + +/* + called when a epoll call fails, and we should fallback + to using select +*/ +static void epoll_panic(struct epoll_event_context *epoll_ev, const char *reason) +{ + ev_debug(epoll_ev->ev, EV_DEBUG_FATAL, + "%s (%s) - calling abort()\n", reason, strerror(errno)); + abort(); +} + +/* + map from EVENT_FD_* to EPOLLIN/EPOLLOUT +*/ +static uint32_t epoll_map_flags(uint16_t flags) +{ + uint32_t ret = 0; + if (flags & EVENT_FD_READ) ret |= (EPOLLIN | EPOLLERR | EPOLLHUP); + if (flags & EVENT_FD_WRITE) ret |= (EPOLLOUT | EPOLLERR | EPOLLHUP); + return ret; +} + +/* + free the epoll fd +*/ +static int epoll_ctx_destructor(struct epoll_event_context *epoll_ev) +{ + close(epoll_ev->epoll_fd); + epoll_ev->epoll_fd = -1; + return 0; +} + +/* + init the epoll fd +*/ +static int epoll_init_ctx(struct epoll_event_context *epoll_ev) +{ + epoll_ev->epoll_fd = epoll_create(64); + epoll_ev->pid = getpid(); + talloc_set_destructor(epoll_ev, epoll_ctx_destructor); + if (epoll_ev->epoll_fd == -1) { + return -1; + } + return 0; +} + +static void epoll_add_event(struct epoll_event_context *epoll_ev, struct fd_event *fde); + +/* + reopen the epoll handle when our pid changes + see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an + demonstration of why this is needed + */ +static void epoll_check_reopen(struct epoll_event_context *epoll_ev) +{ + struct fd_event *fde; + + if (epoll_ev->pid == getpid()) { + return; + } + + close(epoll_ev->epoll_fd); + epoll_ev->epoll_fd = epoll_create(64); + if (epoll_ev->epoll_fd == -1) { + ev_debug(epoll_ev->ev, EV_DEBUG_FATAL, + "Failed to recreate epoll handle after fork\n"); + return; + } + epoll_ev->pid = getpid(); + for (fde=epoll_ev->fd_events;fde;fde=fde->next) { + epoll_add_event(epoll_ev, fde); + } +} + +#define EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT (1<<0) +#define EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR (1<<1) +#define EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR (1<<2) + +/* + add the epoll event to the given fd_event +*/ +static void epoll_add_event(struct epoll_event_context *epoll_ev, struct fd_event *fde) +{ + struct epoll_event event; + + if (epoll_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if we don't want events yet, don't add an epoll_event */ + if (fde->flags == 0) return; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + if (epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_ADD, fde->fd, &event) != 0) { + epoll_panic(epoll_ev, "EPOLL_CTL_ADD failed"); + } + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +/* + delete the epoll event for given fd_event +*/ +static void epoll_del_event(struct epoll_event_context *epoll_ev, struct fd_event *fde) +{ + struct epoll_event event; + + if (epoll_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if there's no epoll_event, we don't need to delete it */ + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT)) return; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + if (epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event) != 0) { + ev_debug(epoll_ev->ev, EV_DEBUG_FATAL, + "epoll_del_event failed! probable early close bug (%s)\n", + strerror(errno)); + } + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; +} + +/* + change the epoll event to the given fd_event +*/ +static void epoll_mod_event(struct epoll_event_context *epoll_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (epoll_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + if (epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_MOD, fde->fd, &event) != 0) { + epoll_panic(epoll_ev, "EPOLL_CTL_MOD failed"); + } + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +static void epoll_change_event(struct epoll_event_context *epoll_ev, struct fd_event *fde) +{ + bool got_error = (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR); + bool want_read = (fde->flags & EVENT_FD_READ); + bool want_write= (fde->flags & EVENT_FD_WRITE); + + if (epoll_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* there's already an event */ + if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT) { + if (want_read || (want_write && !got_error)) { + epoll_mod_event(epoll_ev, fde); + return; + } + /* + * if we want to match the select behavior, we need to remove the epoll_event + * when the caller isn't interested in events. + * + * this is because epoll reports EPOLLERR and EPOLLHUP, even without asking for them + */ + epoll_del_event(epoll_ev, fde); + return; + } + + /* there's no epoll_event attached to the fde */ + if (want_read || (want_write && !got_error)) { + epoll_add_event(epoll_ev, fde); + return; + } +} + +/* + event loop handling using epoll +*/ +static int epoll_event_loop(struct epoll_event_context *epoll_ev, struct timeval *tvalp) +{ + int ret, i; +#define MAXEVENTS 32 + struct epoll_event events[MAXEVENTS]; + uint32_t destruction_count = ++epoll_ev->destruction_count; + int timeout = -1; + + if (epoll_ev->epoll_fd == -1) return -1; + + if (tvalp) { + /* it's better to trigger timed events a bit later than to early */ + timeout = ((tvalp->tv_usec+999) / 1000) + (tvalp->tv_sec*1000); + } + + if (epoll_ev->ev->num_signal_handlers && + common_event_check_signal(epoll_ev->ev)) { + return 0; + } + + ret = epoll_wait(epoll_ev->epoll_fd, events, MAXEVENTS, timeout); + + if (ret == -1 && errno == EINTR && epoll_ev->ev->num_signal_handlers) { + if (common_event_check_signal(epoll_ev->ev)) { + return 0; + } + } + + if (ret == -1 && errno != EINTR) { + epoll_panic(epoll_ev, "epoll_wait() failed"); + return -1; + } + + if (ret == 0 && tvalp) { + /* we don't care about a possible delay here */ + common_event_loop_timer_delay(epoll_ev->ev); + return 0; + } + + for (i=0;i<ret;i++) { + struct fd_event *fde = talloc_get_type(events[i].data.ptr, + struct fd_event); + uint16_t flags = 0; + + if (fde == NULL) { + epoll_panic(epoll_ev, "epoll_wait() gave bad data"); + return -1; + } + if (events[i].events & (EPOLLHUP|EPOLLERR)) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR; + /* + * if we only wait for EVENT_FD_WRITE, we should not tell the + * event handler about it, and remove the epoll_event, + * as we only report errors when waiting for read events, + * to match the select() behavior + */ + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR)) { + epoll_del_event(epoll_ev, fde); + continue; + } + flags |= EVENT_FD_READ; + } + if (events[i].events & EPOLLIN) flags |= EVENT_FD_READ; + if (events[i].events & EPOLLOUT) flags |= EVENT_FD_WRITE; + if (flags) { + fde->handler(epoll_ev->ev, fde, flags, fde->private_data); + if (destruction_count != epoll_ev->destruction_count) { + break; + } + } + } + + return 0; +} + +/* + create a epoll_event_context structure. +*/ +static int epoll_event_context_init(struct event_context *ev) +{ + int ret; + struct epoll_event_context *epoll_ev; + + epoll_ev = talloc_zero(ev, struct epoll_event_context); + if (!epoll_ev) return -1; + epoll_ev->ev = ev; + epoll_ev->epoll_fd = -1; + + ret = epoll_init_ctx(epoll_ev); + if (ret != 0) { + talloc_free(epoll_ev); + return ret; + } + + ev->additional_data = epoll_ev; + return 0; +} + +/* + destroy an fd_event +*/ +static int epoll_event_fd_destructor(struct fd_event *fde) +{ + struct event_context *ev = fde->event_ctx; + struct epoll_event_context *epoll_ev = talloc_get_type(ev->additional_data, + struct epoll_event_context); + + epoll_check_reopen(epoll_ev); + + epoll_ev->num_fd_events--; + epoll_ev->destruction_count++; + + DLIST_REMOVE(epoll_ev->fd_events, fde); + + epoll_del_event(epoll_ev, fde); + + if (fde->flags & EVENT_FD_AUTOCLOSE) { + close(fde->fd); + fde->fd = -1; + } + + return 0; +} + +/* + add a fd based event + return NULL on failure (memory allocation error) +*/ +static struct fd_event *epoll_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data) +{ + struct epoll_event_context *epoll_ev = talloc_get_type(ev->additional_data, + struct epoll_event_context); + struct fd_event *fde; + + epoll_check_reopen(epoll_ev); + + fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event); + if (!fde) return NULL; + + fde->event_ctx = ev; + fde->fd = fd; + fde->flags = flags; + fde->handler = handler; + fde->private_data = private_data; + fde->additional_flags = 0; + fde->additional_data = NULL; + + epoll_ev->num_fd_events++; + talloc_set_destructor(fde, epoll_event_fd_destructor); + + DLIST_ADD(epoll_ev->fd_events, fde); + epoll_add_event(epoll_ev, fde); + + return fde; +} + + +/* + return the fd event flags +*/ +static uint16_t epoll_event_get_fd_flags(struct fd_event *fde) +{ + return fde->flags; +} + +/* + set the fd event flags +*/ +static void epoll_event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + struct event_context *ev; + struct epoll_event_context *epoll_ev; + + if (fde->flags == flags) return; + + ev = fde->event_ctx; + epoll_ev = talloc_get_type(ev->additional_data, struct epoll_event_context); + + fde->flags = flags; + + epoll_check_reopen(epoll_ev); + + epoll_change_event(epoll_ev, fde); +} + +/* + do a single event loop using the events defined in ev +*/ +static int epoll_event_loop_once(struct event_context *ev) +{ + struct epoll_event_context *epoll_ev = talloc_get_type(ev->additional_data, + struct epoll_event_context); + struct timeval tval; + + tval = common_event_loop_timer_delay(ev); + if (ev_timeval_is_zero(&tval)) { + return 0; + } + + epoll_check_reopen(epoll_ev); + + return epoll_event_loop(epoll_ev, &tval); +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +static int epoll_event_loop_wait(struct event_context *ev) +{ + struct epoll_event_context *epoll_ev = talloc_get_type(ev->additional_data, + struct epoll_event_context); + while (epoll_ev->num_fd_events) { + if (epoll_event_loop_once(ev) != 0) { + break; + } + } + + return 0; +} + +static const struct event_ops epoll_event_ops = { + .context_init = epoll_event_context_init, + .add_fd = epoll_event_add_fd, + .get_fd_flags = epoll_event_get_fd_flags, + .set_fd_flags = epoll_event_set_fd_flags, + .add_timed = common_event_add_timed, + .add_signal = common_event_add_signal, + .loop_once = epoll_event_loop_once, + .loop_wait = epoll_event_loop_wait, +}; + +bool events_epoll_init(void) +{ + return event_register_backend("epoll", &epoll_event_ops); +} diff --git a/lib/tevent/tevent_internal.h b/lib/tevent/tevent_internal.h new file mode 100644 index 0000000000..0d0755f298 --- /dev/null +++ b/lib/tevent/tevent_internal.h @@ -0,0 +1,158 @@ +/* + Unix SMB/CIFS implementation. + + generalised event loop handling + + Internal structs + + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +struct event_ops { + /* conntext init */ + int (*context_init)(struct event_context *ev); + + /* fd_event functions */ + struct fd_event *(*add_fd)(struct event_context *ev, + TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data); + uint16_t (*get_fd_flags)(struct fd_event *fde); + void (*set_fd_flags)(struct fd_event *fde, uint16_t flags); + + /* timed_event functions */ + struct timed_event *(*add_timed)(struct event_context *ev, + TALLOC_CTX *mem_ctx, + struct timeval next_event, + event_timed_handler_t handler, + void *private_data); + /* disk aio event functions */ + struct aio_event *(*add_aio)(struct event_context *ev, + TALLOC_CTX *mem_ctx, + struct iocb *iocb, + event_aio_handler_t handler, + void *private_data); + /* signal functions */ + struct signal_event *(*add_signal)(struct event_context *ev, + TALLOC_CTX *mem_ctx, + int signum, int sa_flags, + event_signal_handler_t handler, + void *private_data); + + /* loop functions */ + int (*loop_once)(struct event_context *ev); + int (*loop_wait)(struct event_context *ev); +}; + +struct fd_event { + struct fd_event *prev, *next; + struct event_context *event_ctx; + int fd; + uint16_t flags; /* see EVENT_FD_* flags */ + event_fd_handler_t handler; + /* this is private for the specific handler */ + void *private_data; + /* this is private for the events_ops implementation */ + uint16_t additional_flags; + void *additional_data; +}; + +struct timed_event { + struct timed_event *prev, *next; + struct event_context *event_ctx; + struct timeval next_event; + event_timed_handler_t handler; + /* this is private for the specific handler */ + void *private_data; + /* this is private for the events_ops implementation */ + void *additional_data; +}; + +struct signal_event { + struct signal_event *prev, *next; + struct event_context *event_ctx; + event_signal_handler_t handler; + void *private_data; + int signum; + int sa_flags; +}; + +/* DEBUG */ +enum ev_debug_level {EV_DEBUG_FATAL, EV_DEBUG_ERROR, + EV_DEBUG_WARNING, EV_DEBUG_TRACE}; + +struct ev_debug_ops { + void (*debug)(void *context, enum ev_debug_level level, + const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0); + void *context; +}; + +int ev_set_debug(struct event_context *ev, + void (*debug)(void *context, enum ev_debug_level level, + const char *fmt, va_list ap), + void *context); +int ev_set_debug_stderr(struct event_context *ev); +void ev_debug(struct event_context *ev, enum ev_debug_level level, const char *fmt, ...); + +/* aio event is private to the aio backend */ +struct aio_event; + +struct event_context { + /* the specific events implementation */ + const struct event_ops *ops; + + /* list of timed events - used by common code */ + struct timed_event *timed_events; + + /* this is private for the events_ops implementation */ + void *additional_data; + + /* number of signal event handlers */ + int num_signal_handlers; + + /* pipe hack used with signal handlers */ + struct fd_event *pipe_fde; + + /* debugging operations */ + struct ev_debug_ops debug_ops; +}; + + +bool event_register_backend(const char *name, const struct event_ops *ops); + +bool ev_timeval_is_zero(const struct timeval *tv); +struct timed_event *common_event_add_timed(struct event_context *, TALLOC_CTX *, + struct timeval, event_timed_handler_t, void *); +struct timeval common_event_loop_timer_delay(struct event_context *); + +struct signal_event *common_event_add_signal(struct event_context *ev, + TALLOC_CTX *mem_ctx, + int signum, + int sa_flags, + event_signal_handler_t handler, + void *private_data); +int common_event_check_signal(struct event_context *ev); + + +bool events_standard_init(void); +bool events_select_init(void); +#if HAVE_EVENTS_EPOLL +bool events_epoll_init(void); +#endif +#if HAVE_LINUX_AIO +bool events_aio_init(void); +#endif diff --git a/lib/tevent/tevent_liboop.c b/lib/tevent/tevent_liboop.c new file mode 100644 index 0000000000..339297a3cf --- /dev/null +++ b/lib/tevent/tevent_liboop.c @@ -0,0 +1,288 @@ +/* + Unix SMB/CIFS implementation. + main select loop and event handling + wrapper for http://liboop.org/ + + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "events.h" +#include "events_internal.h" + +#include <oop.h> + +/* + !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! + + NOTE: this code compiles fine, but is completly *UNTESTED* + and is only commited as example + + !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! +*/ + +static int oop_event_context_destructor(struct event_context *ev) +{ + oop_source_sys *oop_sys = ev->additional_data; + + oop_sys_delete(oop_sys); + + return 0; +} + +/* + create a oop_event_context structure. +*/ +static int oop_event_context_init(struct event_context *ev, void *private_data) +{ + oop_source_sys *oop_sys = private_data; + + if (!oop_sys) { + oop_sys = oop_sys_new(); + if (!oop_sys) { + return -1; + } + + talloc_set_destructor(ev, oop_event_context_destructor); + } + + ev->additional_data = oop_sys; + + return 0; +} + +static void *oop_event_fd_handler(oop_source *oop, int fd, oop_event oop_type, void *ptr) +{ + struct fd_event *fde = ptr; + + if (fd != fde->fd) return OOP_ERROR; + + switch(oop_type) { + case OOP_READ: + fde->handler(fde->event_ctx, fde, EVENT_FD_READ, fde->private_data); + return OOP_CONTINUE; + case OOP_WRITE: + fde->handler(fde->event_ctx, fde, EVENT_FD_WRITE, fde->private_data); + return OOP_CONTINUE; + case OOP_EXCEPTION: + return OOP_ERROR; + case OOP_NUM_EVENTS: + return OOP_ERROR; + } + + return OOP_ERROR; +} + +/* + destroy an fd_event +*/ +static int oop_event_fd_destructor(struct fd_event *fde) +{ + struct event_context *ev = fde->event_ctx; + oop_source_sys *oop_sys = ev->additional_data; + oop_source *oop = oop_sys_source(oop_sys); + + if (fde->flags & EVENT_FD_READ) + oop->cancel_fd(oop, fde->fd, OOP_READ); + if (fde->flags & EVENT_FD_WRITE) + oop->cancel_fd(oop, fde->fd, OOP_WRITE); + + if (fde->flags & EVENT_FD_AUTOCLOSE) { + close(fde->fd); + fde->fd = -1; + } + + return 0; +} + +/* + add a fd based event + return NULL on failure (memory allocation error) +*/ +static struct fd_event *oop_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data) +{ + struct fd_event *fde; + oop_source_sys *oop_sys = ev->additional_data; + oop_source *oop = oop_sys_source(oop_sys); + + fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event); + if (!fde) return NULL; + + fde->event_ctx = ev; + fde->fd = fd; + fde->flags = flags; + fde->handler = handler; + fde->private_data = private_data; + fde->additional_flags = 0; + fde->additional_data = NULL; + + if (fde->flags & EVENT_FD_READ) + oop->on_fd(oop, fde->fd, OOP_READ, oop_event_fd_handler, fde); + if (fde->flags & EVENT_FD_WRITE) + oop->on_fd(oop, fde->fd, OOP_WRITE, oop_event_fd_handler, fde); + + talloc_set_destructor(fde, oop_event_fd_destructor); + + return fde; +} + +/* + return the fd event flags +*/ +static uint16_t oop_event_get_fd_flags(struct fd_event *fde) +{ + return fde->flags; +} + +/* + set the fd event flags +*/ +static void oop_event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + oop_source_sys *oop_sys; + oop_source *oop; + + oop_sys = fde->event_ctx->additional_data; + oop = oop_sys_source(oop_sys); + + if ((fde->flags & EVENT_FD_READ)&&(!(flags & EVENT_FD_READ))) + oop->cancel_fd(oop, fde->fd, OOP_READ); + + if ((!(fde->flags & EVENT_FD_READ))&&(flags & EVENT_FD_READ)) + oop->on_fd(oop, fde->fd, OOP_READ, oop_event_fd_handler, fde); + + if ((fde->flags & EVENT_FD_WRITE)&&(!(flags & EVENT_FD_WRITE))) + oop->cancel_fd(oop, fde->fd, OOP_WRITE); + + if ((!(fde->flags & EVENT_FD_WRITE))&&(flags & EVENT_FD_WRITE)) + oop->on_fd(oop, fde->fd, OOP_WRITE, oop_event_fd_handler, fde); + + fde->flags = flags; +} + +static int oop_event_timed_destructor(struct timed_event *te); + +static int oop_event_timed_deny_destructor(struct timed_event *te) +{ + return -1; +} + +static void *oop_event_timed_handler(oop_source *oop, struct timeval t, void *ptr) +{ + struct timed_event *te = ptr; + + /* deny the handler to free the event */ + talloc_set_destructor(te, oop_event_timed_deny_destructor); + te->handler(te->event_ctx, te, t, te->private_data); + + talloc_set_destructor(te, oop_event_timed_destructor); + talloc_free(te); + + return OOP_CONTINUE; +} + +/* + destroy a timed event +*/ +static int oop_event_timed_destructor(struct timed_event *te) +{ + struct event_context *ev = te->event_ctx; + oop_source_sys *oop_sys = ev->additional_data; + oop_source *oop = oop_sys_source(oop_sys); + + oop->cancel_time(oop, te->next_event, oop_event_timed_handler, te); + + return 0; +} + +/* + add a timed event + return NULL on failure (memory allocation error) +*/ +static struct timed_event *oop_event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx, + struct timeval next_event, + event_timed_handler_t handler, + void *private_data) +{ + oop_source_sys *oop_sys = ev->additional_data; + oop_source *oop = oop_sys_source(oop_sys); + struct timed_event *te; + + te = talloc(mem_ctx?mem_ctx:ev, struct timed_event); + if (te == NULL) return NULL; + + te->event_ctx = ev; + te->next_event = next_event; + te->handler = handler; + te->private_data = private_data; + te->additional_data = NULL; + + oop->on_time(oop, te->next_event, oop_event_timed_handler, te); + + talloc_set_destructor(te, oop_event_timed_destructor); + + return te; +} + +/* + do a single event loop using the events defined in ev +*/ +static int oop_event_loop_once(struct event_context *ev) +{ + void *oop_ret; + oop_source_sys *oop_sys = ev->additional_data; + + oop_ret = oop_sys_run_once(oop_sys); + if (oop_ret == OOP_CONTINUE) { + return 0; + } + + return -1; +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +static int oop_event_loop_wait(struct event_context *ev) +{ + void *oop_ret; + oop_source_sys *oop_sys = ev->additional_data; + + oop_ret = oop_sys_run(oop_sys); + if (oop_ret == OOP_CONTINUE) { + return 0; + } + + return -1; +} + +static const struct event_ops event_oop_ops = { + .context_init = oop_event_context_init, + .add_fd = oop_event_add_fd, + .get_fd_flags = oop_event_get_fd_flags, + .set_fd_flags = oop_event_set_fd_flags, + .add_timed = oop_event_add_timed, + .add_signal = common_event_add_signal, + .loop_once = oop_event_loop_once, + .loop_wait = oop_event_loop_wait, +}; + +const struct event_ops *event_liboop_get_ops(void) +{ + return &event_oop_ops; +} diff --git a/lib/tevent/tevent_s4.c b/lib/tevent/tevent_s4.c new file mode 100644 index 0000000000..134f899cf8 --- /dev/null +++ b/lib/tevent/tevent_s4.c @@ -0,0 +1,108 @@ +/* + Unix SMB/CIFS implementation. + Copyright (C) Andrew Tridgell 2003 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "events.h" +#include "events_internal.h" + +NTSTATUS s4_events_standard_init(void) +{ + if (!events_standard_init()) { + return NT_STATUS_INTERNAL_ERROR; + } + return NT_STATUS_OK; +} + +NTSTATUS s4_events_select_init(void) +{ + if (!events_select_init()) { + return NT_STATUS_INTERNAL_ERROR; + } + return NT_STATUS_OK; +} + +#if HAVE_EVENTS_EPOLL +NTSTATUS s4_events_epoll_init(void) +{ + if (!events_epoll_init()) { + return NT_STATUS_INTERNAL_ERROR; + } + return NT_STATUS_OK; +} +#endif + +#if HAVE_LINUX_AIO +NTSTATUS s4_events_aio_init(void) +{ + if (!events_aio_init()) { + return NT_STATUS_INTERNAL_ERROR; + } + return NT_STATUS_OK; +} +#endif + +/* + this is used to catch debug messages from events +*/ +static void ev_wrap_debug(void *context, enum ev_debug_level level, + const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0); + +static void ev_wrap_debug(void *context, enum ev_debug_level level, + const char *fmt, va_list ap) +{ + int samba_level = -1; + char *s = NULL; + switch (level) { + case EV_DEBUG_FATAL: + samba_level = 0; + break; + case EV_DEBUG_ERROR: + samba_level = 1; + break; + case EV_DEBUG_WARNING: + samba_level = 2; + break; + case EV_DEBUG_TRACE: + samba_level = 5; + break; + + }; + vasprintf(&s, fmt, ap); + if (!s) return; + DEBUG(samba_level, ("events: %s\n", s)); + free(s); +} + +/* + create a event_context structure. This must be the first events + call, and all subsequent calls pass this event_context as the first + element. Event handlers also receive this as their first argument. + + This samba4 specific call sets the samba4 debug handler. +*/ +struct event_context *s4_event_context_init(TALLOC_CTX *mem_ctx) +{ + struct event_context *ev; + + ev = event_context_init_byname(mem_ctx, NULL); + if (ev) { + ev_set_debug(ev, ev_wrap_debug, NULL); + } + return ev; +} + diff --git a/lib/tevent/tevent_select.c b/lib/tevent/tevent_select.c new file mode 100644 index 0000000000..54d32204f5 --- /dev/null +++ b/lib/tevent/tevent_select.c @@ -0,0 +1,302 @@ +/* + Unix SMB/CIFS implementation. + main select loop and event handling + Copyright (C) Andrew Tridgell 2003-2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + This is SAMBA's default event loop code + +*/ + +#include "replace.h" +#include "system/filesys.h" +#include "system/select.h" +#include "events.h" +#include "events_util.h" +#include "events_internal.h" + +struct select_event_context { + /* a pointer back to the generic event_context */ + struct event_context *ev; + + /* list of filedescriptor events */ + struct fd_event *fd_events; + + /* list of timed events */ + struct timed_event *timed_events; + + /* the maximum file descriptor number in fd_events */ + int maxfd; + + /* information for exiting from the event loop */ + int exit_code; + + /* this is incremented when the loop over events causes something which + could change the events yet to be processed */ + uint32_t destruction_count; +}; + +/* + create a select_event_context structure. +*/ +static int select_event_context_init(struct event_context *ev) +{ + struct select_event_context *select_ev; + + select_ev = talloc_zero(ev, struct select_event_context); + if (!select_ev) return -1; + select_ev->ev = ev; + + ev->additional_data = select_ev; + return 0; +} + +/* + recalculate the maxfd +*/ +static void calc_maxfd(struct select_event_context *select_ev) +{ + struct fd_event *fde; + + select_ev->maxfd = 0; + for (fde = select_ev->fd_events; fde; fde = fde->next) { + if (fde->fd > select_ev->maxfd) { + select_ev->maxfd = fde->fd; + } + } +} + + +/* to mark the ev->maxfd invalid + * this means we need to recalculate it + */ +#define EVENT_INVALID_MAXFD (-1) + +/* + destroy an fd_event +*/ +static int select_event_fd_destructor(struct fd_event *fde) +{ + struct event_context *ev = fde->event_ctx; + struct select_event_context *select_ev = talloc_get_type(ev->additional_data, + struct select_event_context); + + if (select_ev->maxfd == fde->fd) { + select_ev->maxfd = EVENT_INVALID_MAXFD; + } + + DLIST_REMOVE(select_ev->fd_events, fde); + select_ev->destruction_count++; + + if (fde->flags & EVENT_FD_AUTOCLOSE) { + close(fde->fd); + fde->fd = -1; + } + + return 0; +} + +/* + add a fd based event + return NULL on failure (memory allocation error) +*/ +static struct fd_event *select_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data) +{ + struct select_event_context *select_ev = talloc_get_type(ev->additional_data, + struct select_event_context); + struct fd_event *fde; + + fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event); + if (!fde) return NULL; + + fde->event_ctx = ev; + fde->fd = fd; + fde->flags = flags; + fde->handler = handler; + fde->private_data = private_data; + fde->additional_flags = 0; + fde->additional_data = NULL; + + DLIST_ADD(select_ev->fd_events, fde); + if (fde->fd > select_ev->maxfd) { + select_ev->maxfd = fde->fd; + } + talloc_set_destructor(fde, select_event_fd_destructor); + + return fde; +} + + +/* + return the fd event flags +*/ +static uint16_t select_event_get_fd_flags(struct fd_event *fde) +{ + return fde->flags; +} + +/* + set the fd event flags +*/ +static void select_event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + struct event_context *ev; + struct select_event_context *select_ev; + + if (fde->flags == flags) return; + + ev = fde->event_ctx; + select_ev = talloc_get_type(ev->additional_data, struct select_event_context); + + fde->flags = flags; +} + +/* + event loop handling using select() +*/ +static int select_event_loop_select(struct select_event_context *select_ev, struct timeval *tvalp) +{ + fd_set r_fds, w_fds; + struct fd_event *fde; + int selrtn; + uint32_t destruction_count = ++select_ev->destruction_count; + + /* we maybe need to recalculate the maxfd */ + if (select_ev->maxfd == EVENT_INVALID_MAXFD) { + calc_maxfd(select_ev); + } + + FD_ZERO(&r_fds); + FD_ZERO(&w_fds); + + /* setup any fd events */ + for (fde = select_ev->fd_events; fde; fde = fde->next) { + if (fde->flags & EVENT_FD_READ) { + FD_SET(fde->fd, &r_fds); + } + if (fde->flags & EVENT_FD_WRITE) { + FD_SET(fde->fd, &w_fds); + } + } + + if (select_ev->ev->num_signal_handlers && + common_event_check_signal(select_ev->ev)) { + return 0; + } + + selrtn = select(select_ev->maxfd+1, &r_fds, &w_fds, NULL, tvalp); + + if (selrtn == -1 && errno == EINTR && + select_ev->ev->num_signal_handlers) { + common_event_check_signal(select_ev->ev); + return 0; + } + + if (selrtn == -1 && errno == EBADF) { + /* the socket is dead! this should never + happen as the socket should have first been + made readable and that should have removed + the event, so this must be a bug. This is a + fatal error. */ + ev_debug(select_ev->ev, EV_DEBUG_FATAL, + "ERROR: EBADF on select_event_loop_once\n"); + select_ev->exit_code = EBADF; + return -1; + } + + if (selrtn == 0 && tvalp) { + /* we don't care about a possible delay here */ + common_event_loop_timer_delay(select_ev->ev); + return 0; + } + + if (selrtn > 0) { + /* at least one file descriptor is ready - check + which ones and call the handler, being careful to allow + the handler to remove itself when called */ + for (fde = select_ev->fd_events; fde; fde = fde->next) { + uint16_t flags = 0; + + if (FD_ISSET(fde->fd, &r_fds)) flags |= EVENT_FD_READ; + if (FD_ISSET(fde->fd, &w_fds)) flags |= EVENT_FD_WRITE; + if (flags) { + fde->handler(select_ev->ev, fde, flags, fde->private_data); + if (destruction_count != select_ev->destruction_count) { + break; + } + } + } + } + + return 0; +} + +/* + do a single event loop using the events defined in ev +*/ +static int select_event_loop_once(struct event_context *ev) +{ + struct select_event_context *select_ev = talloc_get_type(ev->additional_data, + struct select_event_context); + struct timeval tval; + + tval = common_event_loop_timer_delay(ev); + if (ev_timeval_is_zero(&tval)) { + return 0; + } + + return select_event_loop_select(select_ev, &tval); +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +static int select_event_loop_wait(struct event_context *ev) +{ + struct select_event_context *select_ev = talloc_get_type(ev->additional_data, + struct select_event_context); + select_ev->exit_code = 0; + + while (select_ev->fd_events && select_ev->exit_code == 0) { + if (select_event_loop_once(ev) != 0) { + break; + } + } + + return select_ev->exit_code; +} + +static const struct event_ops select_event_ops = { + .context_init = select_event_context_init, + .add_fd = select_event_add_fd, + .get_fd_flags = select_event_get_fd_flags, + .set_fd_flags = select_event_set_fd_flags, + .add_timed = common_event_add_timed, + .add_signal = common_event_add_signal, + .loop_once = select_event_loop_once, + .loop_wait = select_event_loop_wait, +}; + +bool events_select_init(void) +{ + return event_register_backend("select", &select_event_ops); +} + diff --git a/lib/tevent/tevent_signal.c b/lib/tevent/tevent_signal.c new file mode 100644 index 0000000000..652df53d4b --- /dev/null +++ b/lib/tevent/tevent_signal.c @@ -0,0 +1,291 @@ +/* + Unix SMB/CIFS implementation. + + common events code for signal events + + Copyright (C) Andrew Tridgell 2007 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <signal.h> +#include "replace.h" +#include "system/filesys.h" +#include "system/select.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" + +#define NUM_SIGNALS 64 + +/* maximum number of SA_SIGINFO signals to hold in the queue */ +#define SA_INFO_QUEUE_COUNT 10 + +struct sigcounter { + uint32_t count; + uint32_t seen; +}; + +#define SIG_INCREMENT(s) (s).count++ +#define SIG_SEEN(s, n) (s).seen += (n) +#define SIG_PENDING(s) ((s).seen != (s).count) + + +/* + the poor design of signals means that this table must be static global +*/ +static struct sig_state { + struct signal_event *sig_handlers[NUM_SIGNALS+1]; + struct sigaction *oldact[NUM_SIGNALS+1]; + struct sigcounter signal_count[NUM_SIGNALS+1]; + struct sigcounter got_signal; + int pipe_hack[2]; +#ifdef SA_SIGINFO + /* with SA_SIGINFO we get quite a lot of info per signal */ + siginfo_t *sig_info[NUM_SIGNALS+1]; + struct sigcounter sig_blocked[NUM_SIGNALS+1]; +#endif +} *sig_state; + +/* + return number of sigcounter events not processed yet +*/ +static uint32_t sig_count(struct sigcounter s) +{ + if (s.count >= s.seen) { + return s.count - s.seen; + } + return 1 + (0xFFFFFFFF & ~(s.seen - s.count)); +} + +/* + signal handler - redirects to registered signals +*/ +static void signal_handler(int signum) +{ + char c = 0; + SIG_INCREMENT(sig_state->signal_count[signum]); + SIG_INCREMENT(sig_state->got_signal); + /* doesn't matter if this pipe overflows */ + write(sig_state->pipe_hack[1], &c, 1); +} + +#ifdef SA_SIGINFO +/* + signal handler with SA_SIGINFO - redirects to registered signals +*/ +static void signal_handler_info(int signum, siginfo_t *info, void *uctx) +{ + uint32_t count = sig_count(sig_state->signal_count[signum]); + sig_state->sig_info[signum][count] = *info; + + signal_handler(signum); + + /* handle SA_SIGINFO */ + if (count+1 == SA_INFO_QUEUE_COUNT) { + /* we've filled the info array - block this signal until + these ones are delivered */ + sigset_t set; + sigemptyset(&set); + sigaddset(&set, signum); + sigprocmask(SIG_BLOCK, &set, NULL); + SIG_INCREMENT(sig_state->sig_blocked[signum]); + } +} +#endif + +/* + destroy a signal event +*/ +static int signal_event_destructor(struct signal_event *se) +{ + se->event_ctx->num_signal_handlers--; + DLIST_REMOVE(sig_state->sig_handlers[se->signum], se); + if (sig_state->sig_handlers[se->signum] == NULL) { + /* restore old handler, if any */ + sigaction(se->signum, sig_state->oldact[se->signum], NULL); + sig_state->oldact[se->signum] = NULL; +#ifdef SA_SIGINFO + if (se->sa_flags & SA_SIGINFO) { + talloc_free(sig_state->sig_info[se->signum]); + sig_state->sig_info[se->signum] = NULL; + } +#endif + } + return 0; +} + +/* + this is part of the pipe hack needed to avoid the signal race condition +*/ +static void signal_pipe_handler(struct event_context *ev, struct fd_event *fde, + uint16_t flags, void *private) +{ + char c[16]; + /* its non-blocking, doesn't matter if we read too much */ + read(sig_state->pipe_hack[0], c, sizeof(c)); +} + +/* + add a signal event + return NULL on failure (memory allocation error) +*/ +struct signal_event *common_event_add_signal(struct event_context *ev, + TALLOC_CTX *mem_ctx, + int signum, + int sa_flags, + event_signal_handler_t handler, + void *private_data) +{ + struct signal_event *se; + + if (signum >= NUM_SIGNALS) { + return NULL; + } + + /* the sig_state needs to be on a global context as it can last across + multiple event contexts */ + if (sig_state == NULL) { + sig_state = talloc_zero(talloc_autofree_context(), struct sig_state); + if (sig_state == NULL) { + return NULL; + } + } + + se = talloc(mem_ctx?mem_ctx:ev, struct signal_event); + if (se == NULL) return NULL; + + se->event_ctx = ev; + se->handler = handler; + se->private_data = private_data; + se->signum = signum; + se->sa_flags = sa_flags; + + /* Ensure, no matter the destruction order, that we always have a handle on the global sig_state */ + if (!talloc_reference(se, sig_state)) { + return NULL; + } + + /* only install a signal handler if not already installed */ + if (sig_state->sig_handlers[signum] == NULL) { + struct sigaction act; + ZERO_STRUCT(act); + act.sa_handler = signal_handler; + act.sa_flags = sa_flags; +#ifdef SA_SIGINFO + if (sa_flags & SA_SIGINFO) { + act.sa_handler = NULL; + act.sa_sigaction = signal_handler_info; + if (sig_state->sig_info[signum] == NULL) { + sig_state->sig_info[signum] = talloc_array(sig_state, siginfo_t, SA_INFO_QUEUE_COUNT); + if (sig_state->sig_info[signum] == NULL) { + talloc_free(se); + return NULL; + } + } + } +#endif + sig_state->oldact[signum] = talloc(sig_state, struct sigaction); + if (sig_state->oldact[signum] == NULL) { + talloc_free(se); + return NULL; + } + if (sigaction(signum, &act, sig_state->oldact[signum]) == -1) { + talloc_free(se); + return NULL; + } + } + + DLIST_ADD(sig_state->sig_handlers[signum], se); + + talloc_set_destructor(se, signal_event_destructor); + + /* we need to setup the pipe hack handler if not already + setup */ + if (ev->pipe_fde == NULL) { + if (sig_state->pipe_hack[0] == 0 && + sig_state->pipe_hack[1] == 0) { + pipe(sig_state->pipe_hack); + ev_set_blocking(sig_state->pipe_hack[0], false); + ev_set_blocking(sig_state->pipe_hack[1], false); + } + ev->pipe_fde = event_add_fd(ev, ev, sig_state->pipe_hack[0], + EVENT_FD_READ, signal_pipe_handler, NULL); + } + ev->num_signal_handlers++; + + return se; +} + + +/* + check if a signal is pending + return != 0 if a signal was pending +*/ +int common_event_check_signal(struct event_context *ev) +{ + int i; + + if (!sig_state || !SIG_PENDING(sig_state->got_signal)) { + return 0; + } + + for (i=0;i<NUM_SIGNALS+1;i++) { + struct signal_event *se, *next; + struct sigcounter counter = sig_state->signal_count[i]; + uint32_t count = sig_count(counter); + + if (count == 0) { + continue; + } + for (se=sig_state->sig_handlers[i];se;se=next) { + next = se->next; +#ifdef SA_SIGINFO + if (se->sa_flags & SA_SIGINFO) { + int j; + for (j=0;j<count;j++) { + /* note the use of the sig_info array as a + ring buffer */ + int ofs = ((count-1) + j) % SA_INFO_QUEUE_COUNT; + se->handler(ev, se, i, 1, + (void*)&sig_state->sig_info[i][ofs], + se->private_data); + } + if (SIG_PENDING(sig_state->sig_blocked[i])) { + /* we'd filled the queue, unblock the + signal now */ + sigset_t set; + sigemptyset(&set); + sigaddset(&set, i); + SIG_SEEN(sig_state->sig_blocked[i], + sig_count(sig_state->sig_blocked[i])); + sigprocmask(SIG_UNBLOCK, &set, NULL); + } + if (se->sa_flags & SA_RESETHAND) { + talloc_free(se); + } + continue; + } +#endif + se->handler(ev, se, i, count, NULL, se->private_data); + if (se->sa_flags & SA_RESETHAND) { + talloc_free(se); + } + } + SIG_SEEN(sig_state->signal_count[i], count); + SIG_SEEN(sig_state->got_signal, count); + } + + return 1; +} diff --git a/lib/tevent/tevent_standard.c b/lib/tevent/tevent_standard.c new file mode 100644 index 0000000000..11128d7623 --- /dev/null +++ b/lib/tevent/tevent_standard.c @@ -0,0 +1,607 @@ +/* + Unix SMB/CIFS implementation. + main select loop and event handling + Copyright (C) Andrew Tridgell 2003-2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + This is SAMBA's default event loop code + + - we try to use epoll if configure detected support for it + otherwise we use select() + - if epoll is broken on the system or the kernel doesn't support it + at runtime we fallback to select() +*/ + +#include "replace.h" +#include "system/filesys.h" +#include "system/network.h" +#include "system/select.h" /* needed for HAVE_EVENTS_EPOLL */ +#include "events.h" +#include "events_util.h" +#include "events_internal.h" + +struct std_event_context { + /* a pointer back to the generic event_context */ + struct event_context *ev; + + /* list of filedescriptor events */ + struct fd_event *fd_events; + + /* the maximum file descriptor number in fd_events */ + int maxfd; + + /* information for exiting from the event loop */ + int exit_code; + + /* this is changed by the destructors for the fd event + type. It is used to detect event destruction by event + handlers, which means the code that is calling the event + handler needs to assume that the linked list is no longer + valid + */ + uint32_t destruction_count; + + /* when using epoll this is the handle from epoll_create */ + int epoll_fd; + + /* our pid at the time the epoll_fd was created */ + pid_t pid; +}; + +/* use epoll if it is available */ +#if HAVE_EVENTS_EPOLL +/* + called when a epoll call fails, and we should fallback + to using select +*/ +static void epoll_fallback_to_select(struct std_event_context *std_ev, const char *reason) +{ + ev_debug(std_ev->ev, EV_DEBUG_FATAL, + "%s (%s) - falling back to select()\n", + reason, strerror(errno)); + close(std_ev->epoll_fd); + std_ev->epoll_fd = -1; + talloc_set_destructor(std_ev, NULL); +} + +/* + map from EVENT_FD_* to EPOLLIN/EPOLLOUT +*/ +static uint32_t epoll_map_flags(uint16_t flags) +{ + uint32_t ret = 0; + if (flags & EVENT_FD_READ) ret |= (EPOLLIN | EPOLLERR | EPOLLHUP); + if (flags & EVENT_FD_WRITE) ret |= (EPOLLOUT | EPOLLERR | EPOLLHUP); + return ret; +} + +/* + free the epoll fd +*/ +static int epoll_ctx_destructor(struct std_event_context *std_ev) +{ + if (std_ev->epoll_fd != -1) { + close(std_ev->epoll_fd); + } + std_ev->epoll_fd = -1; + return 0; +} + +/* + init the epoll fd +*/ +static void epoll_init_ctx(struct std_event_context *std_ev) +{ + std_ev->epoll_fd = epoll_create(64); + std_ev->pid = getpid(); + talloc_set_destructor(std_ev, epoll_ctx_destructor); +} + +static void epoll_add_event(struct std_event_context *std_ev, struct fd_event *fde); + +/* + reopen the epoll handle when our pid changes + see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an + demonstration of why this is needed + */ +static void epoll_check_reopen(struct std_event_context *std_ev) +{ + struct fd_event *fde; + + if (std_ev->pid == getpid()) { + return; + } + + close(std_ev->epoll_fd); + std_ev->epoll_fd = epoll_create(64); + if (std_ev->epoll_fd == -1) { + ev_debug(std_ev->ev, EV_DEBUG_FATAL, + "Failed to recreate epoll handle after fork\n"); + return; + } + std_ev->pid = getpid(); + for (fde=std_ev->fd_events;fde;fde=fde->next) { + epoll_add_event(std_ev, fde); + } +} + +#define EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT (1<<0) +#define EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR (1<<1) +#define EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR (1<<2) + +/* + add the epoll event to the given fd_event +*/ +static void epoll_add_event(struct std_event_context *std_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (std_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if we don't want events yet, don't add an epoll_event */ + if (fde->flags == 0) return; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + if (epoll_ctl(std_ev->epoll_fd, EPOLL_CTL_ADD, fde->fd, &event) != 0) { + epoll_fallback_to_select(std_ev, "EPOLL_CTL_ADD failed"); + } + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +/* + delete the epoll event for given fd_event +*/ +static void epoll_del_event(struct std_event_context *std_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (std_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* if there's no epoll_event, we don't need to delete it */ + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT)) return; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + epoll_ctl(std_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event); + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT; +} + +/* + change the epoll event to the given fd_event +*/ +static void epoll_mod_event(struct std_event_context *std_ev, struct fd_event *fde) +{ + struct epoll_event event; + if (std_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + ZERO_STRUCT(event); + event.events = epoll_map_flags(fde->flags); + event.data.ptr = fde; + if (epoll_ctl(std_ev->epoll_fd, EPOLL_CTL_MOD, fde->fd, &event) != 0) { + epoll_fallback_to_select(std_ev, "EPOLL_CTL_MOD failed"); + } + + /* only if we want to read we want to tell the event handler about errors */ + if (fde->flags & EVENT_FD_READ) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + } +} + +static void epoll_change_event(struct std_event_context *std_ev, struct fd_event *fde) +{ + bool got_error = (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR); + bool want_read = (fde->flags & EVENT_FD_READ); + bool want_write= (fde->flags & EVENT_FD_WRITE); + + if (std_ev->epoll_fd == -1) return; + + fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR; + + /* there's already an event */ + if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT) { + if (want_read || (want_write && !got_error)) { + epoll_mod_event(std_ev, fde); + return; + } + /* + * if we want to match the select behavior, we need to remove the epoll_event + * when the caller isn't interested in events. + * + * this is because epoll reports EPOLLERR and EPOLLHUP, even without asking for them + */ + epoll_del_event(std_ev, fde); + return; + } + + /* there's no epoll_event attached to the fde */ + if (want_read || (want_write && !got_error)) { + epoll_add_event(std_ev, fde); + return; + } +} + +/* + event loop handling using epoll +*/ +static int epoll_event_loop(struct std_event_context *std_ev, struct timeval *tvalp) +{ + int ret, i; +#define MAXEVENTS 8 + struct epoll_event events[MAXEVENTS]; + uint32_t destruction_count = ++std_ev->destruction_count; + int timeout = -1; + + if (std_ev->epoll_fd == -1) return -1; + + if (tvalp) { + /* it's better to trigger timed events a bit later than to early */ + timeout = ((tvalp->tv_usec+999) / 1000) + (tvalp->tv_sec*1000); + } + + if (std_ev->ev->num_signal_handlers && + common_event_check_signal(std_ev->ev)) { + return 0; + } + + ret = epoll_wait(std_ev->epoll_fd, events, MAXEVENTS, timeout); + + if (ret == -1 && errno == EINTR && std_ev->ev->num_signal_handlers) { + if (common_event_check_signal(std_ev->ev)) { + return 0; + } + } + + if (ret == -1 && errno != EINTR) { + epoll_fallback_to_select(std_ev, "epoll_wait() failed"); + return -1; + } + + if (ret == 0 && tvalp) { + /* we don't care about a possible delay here */ + common_event_loop_timer_delay(std_ev->ev); + return 0; + } + + for (i=0;i<ret;i++) { + struct fd_event *fde = talloc_get_type(events[i].data.ptr, + struct fd_event); + uint16_t flags = 0; + + if (fde == NULL) { + epoll_fallback_to_select(std_ev, "epoll_wait() gave bad data"); + return -1; + } + if (events[i].events & (EPOLLHUP|EPOLLERR)) { + fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR; + /* + * if we only wait for EVENT_FD_WRITE, we should not tell the + * event handler about it, and remove the epoll_event, + * as we only report errors when waiting for read events, + * to match the select() behavior + */ + if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR)) { + epoll_del_event(std_ev, fde); + continue; + } + flags |= EVENT_FD_READ; + } + if (events[i].events & EPOLLIN) flags |= EVENT_FD_READ; + if (events[i].events & EPOLLOUT) flags |= EVENT_FD_WRITE; + if (flags) { + fde->handler(std_ev->ev, fde, flags, fde->private_data); + if (destruction_count != std_ev->destruction_count) { + break; + } + } + } + + return 0; +} +#else +#define epoll_init_ctx(std_ev) +#define epoll_add_event(std_ev,fde) +#define epoll_del_event(std_ev,fde) +#define epoll_change_event(std_ev,fde) +#define epoll_event_loop(std_ev,tvalp) (-1) +#define epoll_check_reopen(std_ev) +#endif + +/* + create a std_event_context structure. +*/ +static int std_event_context_init(struct event_context *ev) +{ + struct std_event_context *std_ev; + + std_ev = talloc_zero(ev, struct std_event_context); + if (!std_ev) return -1; + std_ev->ev = ev; + std_ev->epoll_fd = -1; + + epoll_init_ctx(std_ev); + + ev->additional_data = std_ev; + return 0; +} + +/* + recalculate the maxfd +*/ +static void calc_maxfd(struct std_event_context *std_ev) +{ + struct fd_event *fde; + + std_ev->maxfd = 0; + for (fde = std_ev->fd_events; fde; fde = fde->next) { + if (fde->fd > std_ev->maxfd) { + std_ev->maxfd = fde->fd; + } + } +} + + +/* to mark the ev->maxfd invalid + * this means we need to recalculate it + */ +#define EVENT_INVALID_MAXFD (-1) + +/* + destroy an fd_event +*/ +static int std_event_fd_destructor(struct fd_event *fde) +{ + struct event_context *ev = fde->event_ctx; + struct std_event_context *std_ev = talloc_get_type(ev->additional_data, + struct std_event_context); + + epoll_check_reopen(std_ev); + + if (std_ev->maxfd == fde->fd) { + std_ev->maxfd = EVENT_INVALID_MAXFD; + } + + DLIST_REMOVE(std_ev->fd_events, fde); + std_ev->destruction_count++; + + epoll_del_event(std_ev, fde); + + if (fde->flags & EVENT_FD_AUTOCLOSE) { + close(fde->fd); + fde->fd = -1; + } + + return 0; +} + +/* + add a fd based event + return NULL on failure (memory allocation error) +*/ +static struct fd_event *std_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx, + int fd, uint16_t flags, + event_fd_handler_t handler, + void *private_data) +{ + struct std_event_context *std_ev = talloc_get_type(ev->additional_data, + struct std_event_context); + struct fd_event *fde; + + epoll_check_reopen(std_ev); + + fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event); + if (!fde) return NULL; + + fde->event_ctx = ev; + fde->fd = fd; + fde->flags = flags; + fde->handler = handler; + fde->private_data = private_data; + fde->additional_flags = 0; + fde->additional_data = NULL; + + DLIST_ADD(std_ev->fd_events, fde); + if ((std_ev->maxfd != EVENT_INVALID_MAXFD) + && (fde->fd > std_ev->maxfd)) { + std_ev->maxfd = fde->fd; + } + talloc_set_destructor(fde, std_event_fd_destructor); + + epoll_add_event(std_ev, fde); + + return fde; +} + + +/* + return the fd event flags +*/ +static uint16_t std_event_get_fd_flags(struct fd_event *fde) +{ + return fde->flags; +} + +/* + set the fd event flags +*/ +static void std_event_set_fd_flags(struct fd_event *fde, uint16_t flags) +{ + struct event_context *ev; + struct std_event_context *std_ev; + + if (fde->flags == flags) return; + + ev = fde->event_ctx; + std_ev = talloc_get_type(ev->additional_data, struct std_event_context); + + fde->flags = flags; + + epoll_check_reopen(std_ev); + + epoll_change_event(std_ev, fde); +} + +/* + event loop handling using select() +*/ +static int std_event_loop_select(struct std_event_context *std_ev, struct timeval *tvalp) +{ + fd_set r_fds, w_fds; + struct fd_event *fde; + int selrtn; + uint32_t destruction_count = ++std_ev->destruction_count; + + /* we maybe need to recalculate the maxfd */ + if (std_ev->maxfd == EVENT_INVALID_MAXFD) { + calc_maxfd(std_ev); + } + + FD_ZERO(&r_fds); + FD_ZERO(&w_fds); + + /* setup any fd events */ + for (fde = std_ev->fd_events; fde; fde = fde->next) { + if (fde->flags & EVENT_FD_READ) { + FD_SET(fde->fd, &r_fds); + } + if (fde->flags & EVENT_FD_WRITE) { + FD_SET(fde->fd, &w_fds); + } + } + + if (std_ev->ev->num_signal_handlers && + common_event_check_signal(std_ev->ev)) { + return 0; + } + + selrtn = select(std_ev->maxfd+1, &r_fds, &w_fds, NULL, tvalp); + + if (selrtn == -1 && errno == EINTR && + std_ev->ev->num_signal_handlers) { + common_event_check_signal(std_ev->ev); + return 0; + } + + if (selrtn == -1 && errno == EBADF) { + /* the socket is dead! this should never + happen as the socket should have first been + made readable and that should have removed + the event, so this must be a bug. This is a + fatal error. */ + ev_debug(std_ev->ev, EV_DEBUG_FATAL, + "ERROR: EBADF on std_event_loop_once\n"); + std_ev->exit_code = EBADF; + return -1; + } + + if (selrtn == 0 && tvalp) { + /* we don't care about a possible delay here */ + common_event_loop_timer_delay(std_ev->ev); + return 0; + } + + if (selrtn > 0) { + /* at least one file descriptor is ready - check + which ones and call the handler, being careful to allow + the handler to remove itself when called */ + for (fde = std_ev->fd_events; fde; fde = fde->next) { + uint16_t flags = 0; + + if (FD_ISSET(fde->fd, &r_fds)) flags |= EVENT_FD_READ; + if (FD_ISSET(fde->fd, &w_fds)) flags |= EVENT_FD_WRITE; + if (flags) { + fde->handler(std_ev->ev, fde, flags, fde->private_data); + if (destruction_count != std_ev->destruction_count) { + break; + } + } + } + } + + return 0; +} + +/* + do a single event loop using the events defined in ev +*/ +static int std_event_loop_once(struct event_context *ev) +{ + struct std_event_context *std_ev = talloc_get_type(ev->additional_data, + struct std_event_context); + struct timeval tval; + + tval = common_event_loop_timer_delay(ev); + if (ev_timeval_is_zero(&tval)) { + return 0; + } + + epoll_check_reopen(std_ev); + + if (epoll_event_loop(std_ev, &tval) == 0) { + return 0; + } + + return std_event_loop_select(std_ev, &tval); +} + +/* + return on failure or (with 0) if all fd events are removed +*/ +static int std_event_loop_wait(struct event_context *ev) +{ + struct std_event_context *std_ev = talloc_get_type(ev->additional_data, + struct std_event_context); + std_ev->exit_code = 0; + + while (std_ev->fd_events && std_ev->exit_code == 0) { + if (std_event_loop_once(ev) != 0) { + break; + } + } + + return std_ev->exit_code; +} + +static const struct event_ops std_event_ops = { + .context_init = std_event_context_init, + .add_fd = std_event_add_fd, + .get_fd_flags = std_event_get_fd_flags, + .set_fd_flags = std_event_set_fd_flags, + .add_timed = common_event_add_timed, + .add_signal = common_event_add_signal, + .loop_once = std_event_loop_once, + .loop_wait = std_event_loop_wait, +}; + + +bool events_standard_init(void) +{ + return event_register_backend("standard", &std_event_ops); +} + diff --git a/lib/tevent/tevent_timed.c b/lib/tevent/tevent_timed.c new file mode 100644 index 0000000000..c58c898c6d --- /dev/null +++ b/lib/tevent/tevent_timed.c @@ -0,0 +1,230 @@ +/* + Unix SMB/CIFS implementation. + + common events code for timed events + + Copyright (C) Andrew Tridgell 2003-2006 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <sys/time.h> +#include <time.h> +#include "replace.h" +#include "system/filesys.h" +#include "system/select.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" + +/** + compare two timeval structures. + Return -1 if tv1 < tv2 + Return 0 if tv1 == tv2 + Return 1 if tv1 > tv2 +*/ +static int ev_timeval_compare(const struct timeval *tv1, const struct timeval *tv2) +{ + if (tv1->tv_sec > tv2->tv_sec) return 1; + if (tv1->tv_sec < tv2->tv_sec) return -1; + if (tv1->tv_usec > tv2->tv_usec) return 1; + if (tv1->tv_usec < tv2->tv_usec) return -1; + return 0; +} + +/** + return a zero timeval +*/ +static struct timeval ev_timeval_zero(void) +{ + struct timeval tv; + tv.tv_sec = 0; + tv.tv_usec = 0; + return tv; +} + +/** + return a timeval for the current time +*/ +static struct timeval ev_timeval_current(void) +{ + struct timeval tv; + gettimeofday(&tv, NULL); + return tv; +} + +/** + return a timeval struct with the given elements +*/ +static struct timeval ev_timeval_set(uint32_t secs, uint32_t usecs) +{ + struct timeval tv; + tv.tv_sec = secs; + tv.tv_usec = usecs; + return tv; +} + +/** + return the difference between two timevals as a timeval + if tv1 comes after tv2, then return a zero timeval + (this is *tv2 - *tv1) +*/ +static struct timeval ev_timeval_until(const struct timeval *tv1, + const struct timeval *tv2) +{ + struct timeval t; + if (ev_timeval_compare(tv1, tv2) >= 0) { + return ev_timeval_zero(); + } + t.tv_sec = tv2->tv_sec - tv1->tv_sec; + if (tv1->tv_usec > tv2->tv_usec) { + t.tv_sec--; + t.tv_usec = 1000000 - (tv1->tv_usec - tv2->tv_usec); + } else { + t.tv_usec = tv2->tv_usec - tv1->tv_usec; + } + return t; +} + +/** + return true if a timeval is zero +*/ +bool ev_timeval_is_zero(const struct timeval *tv) +{ + return tv->tv_sec == 0 && tv->tv_usec == 0; +} + +/* + destroy a timed event +*/ +static int common_event_timed_destructor(struct timed_event *te) +{ + struct event_context *ev = talloc_get_type(te->event_ctx, + struct event_context); + DLIST_REMOVE(ev->timed_events, te); + return 0; +} + +static int common_event_timed_deny_destructor(struct timed_event *te) +{ + return -1; +} + +/* + add a timed event + return NULL on failure (memory allocation error) +*/ +struct timed_event *common_event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx, + struct timeval next_event, + event_timed_handler_t handler, + void *private_data) +{ + struct timed_event *te, *last_te, *cur_te; + + te = talloc(mem_ctx?mem_ctx:ev, struct timed_event); + if (te == NULL) return NULL; + + te->event_ctx = ev; + te->next_event = next_event; + te->handler = handler; + te->private_data = private_data; + te->additional_data = NULL; + + /* keep the list ordered */ + last_te = NULL; + for (cur_te = ev->timed_events; cur_te; cur_te = cur_te->next) { + /* if the new event comes before the current one break */ + if (ev_timeval_compare(&te->next_event, &cur_te->next_event) < 0) { + break; + } + + last_te = cur_te; + } + + DLIST_ADD_AFTER(ev->timed_events, te, last_te); + + talloc_set_destructor(te, common_event_timed_destructor); + + return te; +} + +/* + do a single event loop using the events defined in ev + + return the delay untill the next timed event, + or zero if a timed event was triggered +*/ +struct timeval common_event_loop_timer_delay(struct event_context *ev) +{ + struct timeval current_time = ev_timeval_zero(); + struct timed_event *te = ev->timed_events; + + if (!te) { + /* have a default tick time of 30 seconds. This guarantees + that code that uses its own timeout checking will be + able to proceeed eventually */ + return ev_timeval_set(30, 0); + } + + /* + * work out the right timeout for the next timed event + * + * avoid the syscall to gettimeofday() if the timed event should + * be triggered directly + * + * if there's a delay till the next timed event, we're done + * with just returning the delay + */ + if (!ev_timeval_is_zero(&te->next_event)) { + struct timeval delay; + + current_time = ev_timeval_current(); + + delay = ev_timeval_until(¤t_time, &te->next_event); + if (!ev_timeval_is_zero(&delay)) { + return delay; + } + } + + /* + * ok, we have a timed event that we'll process ... + */ + + /* deny the handler to free the event */ + talloc_set_destructor(te, common_event_timed_deny_destructor); + + /* We need to remove the timer from the list before calling the + * handler because in a semi-async inner event loop called from the + * handler we don't want to come across this event again -- vl */ + DLIST_REMOVE(ev->timed_events, te); + + /* + * If the timed event was registered for a zero current_time, + * then we pass a zero timeval here too! To avoid the + * overhead of gettimeofday() calls. + * + * otherwise we pass the current time + */ + te->handler(ev, te, current_time, te->private_data); + + /* The destructor isn't necessary anymore, we've already removed the + * event from the list. */ + talloc_set_destructor(te, NULL); + + talloc_free(te); + + return ev_timeval_zero(); +} + diff --git a/lib/tevent/tevent_util.c b/lib/tevent/tevent_util.c new file mode 100644 index 0000000000..9e7d758405 --- /dev/null +++ b/lib/tevent/tevent_util.c @@ -0,0 +1,86 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2005 + Copyright (C) Jelmer Vernooij 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "talloc.h" +#include "events.h" +#include "events_internal.h" +#include "events_util.h" +#include <fcntl.h> + +/** + return the number of elements in a string list +*/ +static size_t str_list_length(const char **list) +{ + size_t ret; + for (ret=0;list && list[ret];ret++) /* noop */ ; + return ret; +} + +/** + add an entry to a string list +*/ +const char **ev_str_list_add(const char **list, const char *s) +{ + size_t len = str_list_length(list); + const char **ret; + + ret = talloc_realloc(NULL, list, const char *, len+2); + if (ret == NULL) return NULL; + + ret[len] = talloc_strdup(ret, s); + if (ret[len] == NULL) return NULL; + + ret[len+1] = NULL; + + return ret; +} + + +/** + Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available, + else + if SYSV use O_NDELAY + if BSD use FNDELAY +**/ + +int ev_set_blocking(int fd, bool set) +{ + int val; +#ifdef O_NONBLOCK +#define FLAG_TO_SET O_NONBLOCK +#else +#ifdef SYSV +#define FLAG_TO_SET O_NDELAY +#else /* BSD */ +#define FLAG_TO_SET FNDELAY +#endif +#endif + + if((val = fcntl(fd, F_GETFL, 0)) == -1) + return -1; + if(set) /* Turn blocking on - ie. clear nonblock flag */ + val &= ~FLAG_TO_SET; + else + val |= FLAG_TO_SET; + return fcntl( fd, F_SETFL, val); +#undef FLAG_TO_SET +} diff --git a/lib/tevent/tevent_util.h b/lib/tevent/tevent_util.h new file mode 100644 index 0000000000..052b302aae --- /dev/null +++ b/lib/tevent/tevent_util.h @@ -0,0 +1,117 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 1998-2005 + Copyright (C) Jelmer Vernooij 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* To use these macros you must have a structure containing a next and + prev pointer */ + +#ifndef _DLINKLIST_H +#define _DLINKLIST_H + + +/* hook into the front of the list */ +#define DLIST_ADD(list, p) \ +do { \ + if (!(list)) { \ + (list) = (p); \ + (p)->next = (p)->prev = NULL; \ + } else { \ + (list)->prev = (p); \ + (p)->next = (list); \ + (p)->prev = NULL; \ + (list) = (p); \ + }\ +} while (0) + +/* remove an element from a list - element doesn't have to be in list. */ +#define DLIST_REMOVE(list, p) \ +do { \ + if ((p) == (list)) { \ + (list) = (p)->next; \ + if (list) (list)->prev = NULL; \ + } else { \ + if ((p)->prev) (p)->prev->next = (p)->next; \ + if ((p)->next) (p)->next->prev = (p)->prev; \ + } \ + if ((p) != (list)) (p)->next = (p)->prev = NULL; \ +} while (0) + +/* promote an element to the top of the list */ +#define DLIST_PROMOTE(list, p) \ +do { \ + DLIST_REMOVE(list, p); \ + DLIST_ADD(list, p); \ +} while (0) + +/* hook into the end of the list - needs a tmp pointer */ +#define DLIST_ADD_END(list, p, type) \ +do { \ + if (!(list)) { \ + (list) = (p); \ + (p)->next = (p)->prev = NULL; \ + } else { \ + type tmp; \ + for (tmp = (list); tmp->next; tmp = tmp->next) ; \ + tmp->next = (p); \ + (p)->next = NULL; \ + (p)->prev = tmp; \ + } \ +} while (0) + +/* insert 'p' after the given element 'el' in a list. If el is NULL then + this is the same as a DLIST_ADD() */ +#define DLIST_ADD_AFTER(list, p, el) \ +do { \ + if (!(list) || !(el)) { \ + DLIST_ADD(list, p); \ + } else { \ + p->prev = el; \ + p->next = el->next; \ + el->next = p; \ + if (p->next) p->next->prev = p; \ + }\ +} while (0) + +/* demote an element to the end of the list, needs a tmp pointer */ +#define DLIST_DEMOTE(list, p, tmp) \ +do { \ + DLIST_REMOVE(list, p); \ + DLIST_ADD_END(list, p, tmp); \ +} while (0) + +/* concatenate two lists - putting all elements of the 2nd list at the + end of the first list */ +#define DLIST_CONCATENATE(list1, list2, type) \ +do { \ + if (!(list1)) { \ + (list1) = (list2); \ + } else { \ + type tmp; \ + for (tmp = (list1); tmp->next; tmp = tmp->next) ; \ + tmp->next = (list2); \ + if (list2) { \ + (list2)->prev = tmp; \ + } \ + } \ +} while (0) + +#endif /* _DLINKLIST_H */ + +const char **ev_str_list_add(const char **list, const char *s); +int ev_set_blocking(int fd, bool set); |