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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __DIRECT__THREAD_H__
#define __DIRECT__THREAD_H__
#include <sys/types.h>
#include <direct/types.h>
#include <direct/conf.h>
typedef enum {
DTT_DEFAULT = 0,
DTT_CLEANUP = -5,
DTT_INPUT = -10,
DTT_OUTPUT = -12,
DTT_MESSAGING = -15,
DTT_CRITICAL = -20
} DirectThreadType;
typedef void * (*DirectThreadMainFunc)( DirectThread *thread, void *arg );
typedef void (*DirectThreadInitFunc)( DirectThread *thread, void *arg );
/*
* Add a handler being called at the beginning of new threads.
*/
DirectThreadInitHandler *direct_thread_add_init_handler ( DirectThreadInitFunc func,
void *arg );
/*
* Remove the specified handler.
*/
void direct_thread_remove_init_handler( DirectThreadInitHandler *handler );
/*
* Create a new thread and start it.
* The thread type is relevant for the scheduling priority.
*/
DirectThread *direct_thread_create ( DirectThreadType thread_type,
DirectThreadMainFunc thread_main,
void *arg,
const char *name );
/*
* Returns the thread of the caller.
*/
DirectThread *direct_thread_self ( void );
/*
* Returns the name of the specified thread.
*/
const char *direct_thread_get_name ( DirectThread *thread );
/*
* Returns the thread ID of the specified thread.
*/
pid_t direct_thread_get_tid ( DirectThread *thread );
/*
* Returns the name of the calling thread.
*/
const char *direct_thread_self_name ( void );
/*
* Changes the name of the calling thread.
*/
void direct_thread_set_name ( const char *name );
/*
* Wait on the thread object to be notified via direct_thread_notify().
*/
DirectResult direct_thread_wait ( DirectThread *thread,
int timeout_ms );
/*
* Notify the thread object waking up callers of direct_thread_wait().
*/
void direct_thread_notify ( DirectThread *thread );
void direct_thread_lock ( DirectThread *thread );
void direct_thread_unlock ( DirectThread *thread );
/*
* Kindly ask the thread to terminate (for joining without thread cancellation).
*/
void direct_thread_terminate ( DirectThread *thread );
/*
* Cancel a running thread.
*/
void direct_thread_cancel ( DirectThread *thread );
/*
* Returns true if the specified thread has been canceled.
*/
bool direct_thread_is_canceled( DirectThread *thread );
/*
* Detach a thread.
*/
void direct_thread_detach ( DirectThread *thread );
/*
* Returns true if the specified thread has been detached.
*/
bool direct_thread_is_detached( DirectThread *thread );
/*
* Check if the calling thread is canceled.
* Must not be called by other threads than 'thread'.
* This function won't return if the thread is canceled.
*/
void direct_thread_testcancel ( DirectThread *thread );
/*
* Wait until a running thread is terminated.
*/
void direct_thread_join ( DirectThread *thread );
/*
* Returns true if the specified thread has been join.
*/
bool direct_thread_is_joined ( DirectThread *thread );
/*
* Free resources allocated by direct_thread_create.
* If the thread is still running it will be killed.
*/
void direct_thread_destroy ( DirectThread *thread );
/*
* Utilities for stringification.
*/
#if DIRECT_BUILD_TEXT
const char *direct_thread_type_name ( DirectThreadType type );
const char *direct_thread_scheduler_name( DirectConfigThreadScheduler scheduler );
const char *direct_thread_policy_name ( int policy );
#endif
#endif
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