diff options
Diffstat (limited to 'source4')
| -rw-r--r-- | source4/configure.in | 1 | ||||
| -rw-r--r-- | source4/ntvfs/common/notify.c | 137 | ||||
| -rw-r--r-- | source4/ntvfs/config.mk | 1 | ||||
| -rw-r--r-- | source4/ntvfs/posix/vfs_posix.c | 4 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/README | 5 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/config.m4 | 7 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/config.mk | 20 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/inotify.c | 313 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/sys_notify.c | 96 | ||||
| -rw-r--r-- | source4/ntvfs/sysdep/sys_notify.h | 52 |
10 files changed, 587 insertions, 49 deletions
diff --git a/source4/configure.in b/source4/configure.in index caf0787179..a4df9daba5 100644 --- a/source4/configure.in +++ b/source4/configure.in @@ -42,6 +42,7 @@ sinclude(lib/socket_wrapper/config.m4) sinclude(web_server/config.m4) sinclude(auth/config.m4) sinclude(kdc/config.m4) +sinclude(ntvfs/sysdep/config.m4) AC_ARG_ENABLE(dso, [ --enable-dso Enable building internal libraries as DSO's (experimental)], diff --git a/source4/ntvfs/common/notify.c b/source4/ntvfs/common/notify.c index dd39aca095..595a0f6566 100644 --- a/source4/ntvfs/common/notify.c +++ b/source4/ntvfs/common/notify.c @@ -33,6 +33,7 @@ #include "lib/messaging/irpc.h" #include "librpc/gen_ndr/ndr_notify.h" #include "dlinklist.h" +#include "ntvfs/sysdep/sys_notify.h" struct notify_context { struct tdb_wrap *w; @@ -41,6 +42,7 @@ struct notify_context { struct notify_list *list; struct notify_array *array; int seqnum; + struct sys_notify_context *sys_notify_ctx; }; @@ -48,6 +50,7 @@ struct notify_list { struct notify_list *next, *prev; void *private; void (*callback)(void *, const struct notify_event *); + void *sys_notify_handle; }; #define NOTIFY_KEY "notify array" @@ -73,7 +76,8 @@ static int notify_destructor(void *p) via internal messages */ struct notify_context *notify_init(TALLOC_CTX *mem_ctx, uint32_t server, - struct messaging_context *messaging_ctx) + struct messaging_context *messaging_ctx, + struct event_context *ev) { char *path; struct notify_context *notify; @@ -106,6 +110,8 @@ struct notify_context *notify_init(TALLOC_CTX *mem_ctx, uint32_t server, messaging_register(notify->messaging_ctx, notify, MSG_PVFS_NOTIFY, notify_handler); + notify->sys_notify_ctx = sys_notify_init(-1, notify, ev); + return notify; } @@ -166,6 +172,14 @@ static NTSTATUS notify_load(struct notify_context *notify) return status; } +/* + compare notify entries for sorting +*/ +static int notify_compare(const void *p1, const void *p2) +{ + const struct notify_entry *e1 = p1, *e2 = p2; + return strcmp(e1->path, e2->path); +} /* save the notify array @@ -186,6 +200,11 @@ static NTSTATUS notify_save(struct notify_context *notify) return NT_STATUS_OK; } + if (notify->array->num_entries > 1) { + qsort(notify->array->entries, notify->array->num_entries, + sizeof(struct notify_entry), notify_compare); + } + tmp_ctx = talloc_new(notify); status = ndr_push_struct_blob(&blob, tmp_ctx, notify->array, @@ -238,6 +257,17 @@ static void notify_handler(struct messaging_context *msg_ctx, void *private, } /* + callback from sys_notify telling us about changes from the OS +*/ +static void sys_notify_callback(struct sys_notify_context *ctx, + void *ptr, struct notify_event *ev) +{ + struct notify_list *listel = talloc_get_type(ptr, struct notify_list); + ev->private = listel; + listel->callback(listel->private, ev); +} + +/* add a notify watch. This is called when a notify is first setup on a open directory handle. */ @@ -274,33 +304,42 @@ NTSTATUS notify_add(struct notify_context *notify, struct notify_entry *e, path = talloc_strndup(notify, e->path, len-2); } - notify->array->entries[notify->array->num_entries] = *e; - notify->array->entries[notify->array->num_entries].private = private; - notify->array->entries[notify->array->num_entries].server = notify->server; + listel = talloc_zero(notify, struct notify_list); + NT_STATUS_HAVE_NO_MEMORY(listel); - if (path) { - notify->array->entries[notify->array->num_entries].path = path; - } + listel->private = private; + listel->callback = callback; + DLIST_ADD(notify->list, listel); - notify->array->num_entries++; + /* ignore failures from sys_notify */ + status = sys_notify_watch(notify->sys_notify_ctx, e->path, e->filter, + sys_notify_callback, listel, + &listel->sys_notify_handle); + if (NT_STATUS_IS_OK(status)) { + talloc_steal(listel, listel->sys_notify_handle); + notify_unlock(notify); + } else { + notify->array->entries[notify->array->num_entries] = *e; + notify->array->entries[notify->array->num_entries].private = private; + notify->array->entries[notify->array->num_entries].server = notify->server; - status = notify_save(notify); + if (path) { + notify->array->entries[notify->array->num_entries].path = path; + } - notify_unlock(notify); + notify->array->num_entries++; - NT_STATUS_NOT_OK_RETURN(status); + status = notify_save(notify); + + notify_unlock(notify); + + NT_STATUS_NOT_OK_RETURN(status); + } if (path) { talloc_free(path); } - listel = talloc(notify, struct notify_list); - NT_STATUS_HAVE_NO_MEMORY(listel); - - listel->private = private; - listel->callback = callback; - DLIST_ADD(notify->list, listel); - return status; } @@ -323,6 +362,8 @@ NTSTATUS notify_remove(struct notify_context *notify, void *private) return NT_STATUS_OBJECT_NAME_NOT_FOUND; } + talloc_free(listel); + status = notify_lock(notify); NT_STATUS_NOT_OK_RETURN(status); @@ -398,6 +439,35 @@ static NTSTATUS notify_remove_all(struct notify_context *notify) /* + send a notify message to another messaging server +*/ +static void notify_send(struct notify_context *notify, struct notify_entry *e, + const char *path, uint32_t action) +{ + struct notify_event ev; + DATA_BLOB data; + NTSTATUS status; + TALLOC_CTX *tmp_ctx; + + ev.action = action; + ev.path = path; + ev.private = e->private; + + tmp_ctx = talloc_new(notify); + + status = ndr_push_struct_blob(&data, tmp_ctx, &ev, + (ndr_push_flags_fn_t)ndr_push_notify_event); + if (!NT_STATUS_IS_OK(status)) { + talloc_free(tmp_ctx); + return; + } + + status = messaging_send(notify->messaging_ctx, e->server, + MSG_PVFS_NOTIFY, &data); + talloc_free(tmp_ctx); +} + +/* see if a notify event matches */ static BOOL notify_match(struct notify_context *notify, struct notify_entry *e, @@ -430,35 +500,6 @@ static BOOL notify_match(struct notify_context *notify, struct notify_entry *e, /* - send a notify message to another messaging server -*/ -static void notify_send(struct notify_context *notify, struct notify_entry *e, - const char *path, uint32_t action) -{ - struct notify_event ev; - DATA_BLOB data; - NTSTATUS status; - TALLOC_CTX *tmp_ctx; - - ev.action = action; - ev.path = path; - ev.private = e->private; - - tmp_ctx = talloc_new(notify); - - status = ndr_push_struct_blob(&data, tmp_ctx, &ev, - (ndr_push_flags_fn_t)ndr_push_notify_event); - if (!NT_STATUS_IS_OK(status)) { - talloc_free(tmp_ctx); - return; - } - - status = messaging_send(notify->messaging_ctx, e->server, - MSG_PVFS_NOTIFY, &data); - talloc_free(tmp_ctx); -} - -/* trigger a notify message for anyone waiting on a matching event */ void notify_trigger(struct notify_context *notify, @@ -472,7 +513,7 @@ void notify_trigger(struct notify_context *notify, return; } - /* this needs to be changed to a log(n) search */ + /* TODO: this needs to be changed to a log(n) search */ for (i=0;i<notify->array->num_entries;i++) { if (notify_match(notify, ¬ify->array->entries[i], path, filter)) { notify_send(notify, ¬ify->array->entries[i], diff --git a/source4/ntvfs/config.mk b/source4/ntvfs/config.mk index f17097e356..2a35bd5cb3 100644 --- a/source4/ntvfs/config.mk +++ b/source4/ntvfs/config.mk @@ -2,6 +2,7 @@ include posix/config.mk include common/config.mk include unixuid/config.mk +include sysdep/config.mk ################################################ # Start MODULE ntvfs_cifs diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c index d161dac5a4..c279350e2f 100644 --- a/source4/ntvfs/posix/vfs_posix.c +++ b/source4/ntvfs/posix/vfs_posix.c @@ -30,6 +30,7 @@ #include "lib/tdb/include/tdb.h" #include "db_wrap.h" #include "libcli/security/security.h" +#include "lib/events/events.h" /* @@ -186,7 +187,8 @@ static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs, pvfs->notify_context = notify_init(pvfs, pvfs->ntvfs->ctx->server_id, - pvfs->ntvfs->ctx->msg_ctx); + pvfs->ntvfs->ctx->msg_ctx, + event_context_find(pvfs)); if (pvfs->notify_context == NULL) { return NT_STATUS_INTERNAL_DB_CORRUPTION; } diff --git a/source4/ntvfs/sysdep/README b/source4/ntvfs/sysdep/README new file mode 100644 index 0000000000..a2a8f57c28 --- /dev/null +++ b/source4/ntvfs/sysdep/README @@ -0,0 +1,5 @@ +This directory contains OS depdendent interfaces to facilities that +are only available on a few of our target systems, and require +substantial code to abstract. + + diff --git a/source4/ntvfs/sysdep/config.m4 b/source4/ntvfs/sysdep/config.m4 new file mode 100644 index 0000000000..f67a3bdace --- /dev/null +++ b/source4/ntvfs/sysdep/config.m4 @@ -0,0 +1,7 @@ +AC_CHECK_HEADERS(linux/inotify.h asm/unistd.h) +AC_CHECK_FUNC(inotify_init) + +SMB_ENABLE(ntvfs_inotify, NO) +if test x"$ac_cv_header_linux_inotify_h" = x"yes"; then + SMB_ENABLE(ntvfs_inotify, YES) +fi diff --git a/source4/ntvfs/sysdep/config.mk b/source4/ntvfs/sysdep/config.mk new file mode 100644 index 0000000000..3bcebb5c0e --- /dev/null +++ b/source4/ntvfs/sysdep/config.mk @@ -0,0 +1,20 @@ +################################################ +# Start MODULE ntvfs_sys_notify +[MODULE::ntvfs_sys_notify] +SUBSYSTEM = ntvfs +OBJ_FILES = \ + sys_notify.o +# End MODULE ntvfs_sys_notify +################################################ + + +################################################ +# Start MODULE ntvfs_inotify +[MODULE::ntvfs_inotify] +SUBSYSTEM = ntvfs +INIT_FUNCTION = ntvfs_inotify_init +OBJ_FILES = \ + inotify.o +# End MODULE ntvfs_inotify +################################################ + diff --git a/source4/ntvfs/sysdep/inotify.c b/source4/ntvfs/sysdep/inotify.c new file mode 100644 index 0000000000..31c408d112 --- /dev/null +++ b/source4/ntvfs/sysdep/inotify.c @@ -0,0 +1,313 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2006 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* + notify implementation using inotify +*/ + +#include "includes.h" +#include "system/filesys.h" +#include "ntvfs/sysdep/sys_notify.h" +#include "lib/events/events.h" +#include "smb.h" +#include "dlinklist.h" + +#include <linux/inotify.h> +#include <asm/unistd.h> + +#ifndef HAVE_INOTIFY_INIT +/* + glibc doesn't define these functions yet (as of March 2006) +*/ +static int inotify_init(void) +{ + return syscall(__NR_inotify_init); +} + +static int inotify_add_watch(int fd, const char *path, __u32 mask) +{ + return syscall(__NR_inotify_add_watch, fd, path, mask); +} + +static int inotify_rm_watch(int fd, int wd) +{ + return syscall(__NR_inotify_rm_watch, fd, wd); +} +#endif + + +/* older glibc headers don't have these defines either */ +#ifndef IN_ONLYDIR +#define IN_ONLYDIR 0x01000000 +#endif +#ifndef IN_MASK_ADD +#define IN_MASK_ADD 0x20000000 +#endif + +struct inotify_private { + struct sys_notify_context *ctx; + int fd; + struct watch_context *watches; +}; + +struct watch_context { + struct watch_context *next, *prev; + struct inotify_private *in; + int wd; + sys_notify_callback_t callback; + void *private; + uint32_t mask; +}; + + +/* + destroy the inotify private context +*/ +static int inotify_destructor(void *ptr) +{ + struct inotify_private *in = talloc_get_type(ptr, struct inotify_private); + close(in->fd); + return 0; +} + + +/* + dispatch one inotify event +*/ +static void inotify_dispatch(struct inotify_private *in, struct inotify_event *e) +{ + struct watch_context *w; + struct notify_event ne; + + /* ignore extraneous events, such as unmount and IN_IGNORED events */ + if ((e->mask & (IN_CREATE|IN_DELETE|IN_MOVED_FROM|IN_MOVED_TO)) == 0) { + return; + } + + /* map the inotify mask to a action */ + if (e->mask & IN_CREATE) { + ne.action = NOTIFY_ACTION_ADDED; + } else if (e->mask & IN_DELETE) { + ne.action = NOTIFY_ACTION_REMOVED; + } else { + ne.action = NOTIFY_ACTION_MODIFIED; + } + ne.path = e->name; + + /* find any watches that have this watch descriptor */ + for (w=in->watches;w;w=w->next) { + /* checking the mask copes with multiple watches */ + if (w->wd == e->wd && (e->mask & w->mask) != 0) { + w->callback(in->ctx, w->private, &ne); + } + } +} + +/* + called when the kernel has some events for us +*/ +static void inotify_handler(struct event_context *ev, struct fd_event *fde, + uint16_t flags, void *private) +{ + struct inotify_private *in = talloc_get_type(private, struct inotify_private); + int bufsize = 0; + struct inotify_event *e0, *e; + + /* + we must use FIONREAD as we cannot predict the length of the + filenames, and thus can't know how much to allocate + otherwise + */ + if (ioctl(in->fd, FIONREAD, &bufsize) != 0 || + bufsize == 0) { + DEBUG(0,("No data on inotify fd?!\n")); + return; + } + + e0 = e = talloc_size(in, bufsize); + if (e == NULL) return; + + if (read(in->fd, e0, bufsize) != bufsize) { + DEBUG(0,("Failed to read all inotify data\n")); + talloc_free(e0); + return; + } + + /* we can get more than one event in the buffer */ + while (bufsize >= sizeof(*e)) { + inotify_dispatch(in, e); + bufsize -= e->len + sizeof(*e); + e = (struct inotify_event *)(e->len + sizeof(*e) + (char *)e); + } + + talloc_free(e0); +} + +/* + setup the inotify handle - called the first time a watch is added on + this context +*/ +static NTSTATUS inotify_setup(struct sys_notify_context *ctx) +{ + struct inotify_private *in; + + in = talloc(ctx, struct inotify_private); + NT_STATUS_HAVE_NO_MEMORY(in); + in->fd = inotify_init(); + if (in->fd == -1) { + DEBUG(0,("Failed to init inotify - %s\n", strerror(errno))); + talloc_free(in); + return map_nt_error_from_unix(errno); + } + in->ctx = ctx; + in->watches = NULL; + + ctx->private = in; + talloc_set_destructor(in, inotify_destructor); + + /* add a event waiting for the inotify fd to be readable */ + event_add_fd(ctx->ev, in, in->fd, EVENT_FD_READ, inotify_handler, in); + + return NT_STATUS_OK; +} + + +/* + map from a change notify mask to a inotify mask. Approximate only :( +*/ +static const struct { + uint32_t notify_mask; + uint32_t inotify_mask; +} inotify_mapping[] = { + {FILE_NOTIFY_CHANGE_FILE_NAME, IN_CREATE|IN_DELETE|IN_MOVED_FROM|IN_MOVED_TO}, + {FILE_NOTIFY_CHANGE_ATTRIBUTES, IN_ATTRIB}, + {FILE_NOTIFY_CHANGE_SIZE, IN_MODIFY}, + {FILE_NOTIFY_CHANGE_LAST_WRITE, IN_ATTRIB}, + {FILE_NOTIFY_CHANGE_EA, IN_ATTRIB}, + {FILE_NOTIFY_CHANGE_SECURITY, IN_ATTRIB} +}; + +static uint32_t inotify_map(uint32_t mask) +{ + int i; + uint32_t out=0; + for (i=0;i<ARRAY_SIZE(inotify_mapping);i++) { + if (inotify_mapping[i].notify_mask & mask) { + out |= inotify_mapping[i].inotify_mask; + } + } + return out; +} + +/* + destroy a watch +*/ +static int watch_destructor(void *ptr) +{ + struct watch_context *w = talloc_get_type(ptr, struct watch_context); + struct inotify_private *in = w->in; + int wd = w->wd; + DLIST_REMOVE(w->in->watches, w); + + /* only rm the watch if its the last one with this wd */ + for (w=in->watches;w;w=w->next) { + if (w->wd == wd) break; + } + if (w == NULL) { + inotify_rm_watch(in->fd, wd); + } + return 0; +} + + +/* + add a watch. The watch is removed when the caller calls + talloc_free() on handle +*/ +static NTSTATUS inotify_watch(struct sys_notify_context *ctx, const char *dirpath, + uint32_t filter, sys_notify_callback_t callback, + void *private, void **handle) +{ + struct inotify_private *in; + int wd; + uint32_t mask; + struct watch_context *w; + + /* maybe setup the inotify fd */ + if (ctx->private == NULL) { + NTSTATUS status; + status = inotify_setup(ctx); + NT_STATUS_NOT_OK_RETURN(status); + } + + in = talloc_get_type(ctx->private, struct inotify_private); + + mask = inotify_map(filter); + if (mask == 0) { + /* this filter can't be handled by inotify */ + return NT_STATUS_INVALID_PARAMETER; + } + + /* using IN_MASK_ADD allows us to cope with inotify() returning the same + watch descriptor for muliple watches on the same path */ + mask |= (IN_MASK_ADD | IN_ONLYDIR); + + /* get a new watch descriptor for this path */ + wd = inotify_add_watch(in->fd, dirpath, mask); + if (wd == -1) { + return map_nt_error_from_unix(errno); + } + + w = talloc(in, struct watch_context); + if (w == NULL) { + inotify_rm_watch(in->fd, wd); + return NT_STATUS_NO_MEMORY; + } + + w->in = in; + w->wd = wd; + w->callback = callback; + w->private = private; + w->mask = mask; + + (*handle) = w; + + DLIST_ADD(in->watches, w); + + /* the caller frees the handle to stop watching */ + talloc_set_destructor(w, watch_destructor); + + return NT_STATUS_OK; +} + + +static struct sys_notify_backend inotify = { + .name = "inotify", + .notify_watch = inotify_watch +}; + +/* + initialialise the inotify module + */ +NTSTATUS ntvfs_inotify_init(void) +{ + /* register ourselves as a system inotify module */ + return sys_notify_register(&inotify); +} diff --git a/source4/ntvfs/sysdep/sys_notify.c b/source4/ntvfs/sysdep/sys_notify.c new file mode 100644 index 0000000000..aedfd2a7de --- /dev/null +++ b/source4/ntvfs/sysdep/sys_notify.c @@ -0,0 +1,96 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2006 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* + abstract the various kernel interfaces to change notify into a + single Samba friendly interface +*/ + +#include "includes.h" +#include "system/filesys.h" +#include "ntvfs/sysdep/sys_notify.h" +#include "lib/events/events.h" +#include "dlinklist.h" + +/* list of registered backends */ +static struct sys_notify_backend *backends; + + +/* + initialise a system change notify backend +*/ +struct sys_notify_context *sys_notify_init(int snum, + TALLOC_CTX *mem_ctx, + struct event_context *ev) +{ + struct sys_notify_context *ctx; + const char *bname; + struct sys_notify_backend *b; + + if (backends == NULL) { + return NULL; + } + + if (ev == NULL) { + ev = event_context_find(mem_ctx); + } + + ctx = talloc_zero(mem_ctx, struct sys_notify_context); + if (ctx == NULL) { + return NULL; + } + + ctx->ev = ev; + + bname = lp_parm_string(snum, "notify", "backend"); + if (bname == NULL) { + bname = backends->name; + } + + for (b=backends;b;b=b->next) { + if (strcasecmp(b->name, bname) == 0) break; + } + + if (b != NULL) { + ctx->name = b->name; + ctx->notify_watch = b->notify_watch; + } + + return ctx; +} + +/* + add a watch +*/ +NTSTATUS sys_notify_watch(struct sys_notify_context *ctx, const char *dirpath, + uint32_t filter, sys_notify_callback_t callback, + void *private, void **handle) +{ + return ctx->notify_watch(ctx, dirpath, filter, callback, private, handle); +} + +/* + register a notify backend +*/ +NTSTATUS sys_notify_register(struct sys_notify_backend *backend) +{ + DLIST_ADD(backends, backend); + return NT_STATUS_OK; +} diff --git a/source4/ntvfs/sysdep/sys_notify.h b/source4/ntvfs/sysdep/sys_notify.h new file mode 100644 index 0000000000..9ad5ed7555 --- /dev/null +++ b/source4/ntvfs/sysdep/sys_notify.h @@ -0,0 +1,52 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2006 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "librpc/gen_ndr/notify.h" + +struct sys_notify_context; + +typedef void (*sys_notify_callback_t)(struct sys_notify_context *, + void *, struct notify_event *ev); + +struct sys_notify_context { + struct event_context *ev; + void *private; /* for use of backend */ + NTSTATUS (*notify_watch)(struct sys_notify_context *ctx, const char *dirpath, + uint32_t filter, sys_notify_callback_t callback, + void *private, void **handle); + const char *name; +}; + +struct sys_notify_backend { + struct sys_notify_backend *next, *prev; + const char *name; + NTSTATUS (*notify_watch)(struct sys_notify_context *ctx, const char *dirpath, + uint32_t filter, sys_notify_callback_t callback, + void *private, void **handle); +}; + +NTSTATUS sys_notify_register(struct sys_notify_backend *backend); +struct sys_notify_context *sys_notify_init(int snum, + TALLOC_CTX *mem_ctx, + struct event_context *ev); +NTSTATUS sys_notify_watch(struct sys_notify_context *ctx, const char *dirpath, + uint32_t filter, sys_notify_callback_t callback, + void *private, void **handle); + |