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/*
* Copyright (C) 2009-2010 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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.
*
* DOUBANGO 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 DOUBANGO.
*
*/
/**@file tsk_thread.c
* @brief Utility functions for threading.
*
* @author Mamadou Diop <diopmamadou(at)doubango.org>
*
* @date Created: Sat Nov 8 16:54:58 2009 mdiop
*/
#include "tsk_thread.h"
#include "tsk_debug.h"
#include "tsk_memory.h"
#if TSK_UNDER_WINDOWS
# include <windows.h>
#else
# include <pthread.h>
#endif
/**@defgroup tsk_thread_group Utility functions for threading.
*/
/**@ingroup tsk_thread_group
*/
void tsk_thread_sleep(uint64_t ms)
{
#if TSK_UNDER_WINDOWS
Sleep((DWORD)ms);
#else
struct timespec interval;
interval.tv_sec = (long)(ms/1000);
interval.tv_nsec = (long)(ms%1000) * 1000000;
nanosleep(&interval, 0);
#endif
}
/**@ingroup tsk_thread_group
* Creates a new thread.
* @param tid Handle id of the newly created thread. The returned handle should be destroyed using @ref tsk_thread_join()
* @param start The function to be run as the new thread's start routine
* @param arg An address for the argument for the thread's start routine
* @retval If successful, returns zero. Otherwise, an error number is returned to indicate the error
*/
int tsk_thread_create(void** tid, void *(*start) (void *), void *arg)
{
#if TSK_UNDER_WINDOWS
DWORD ThreadId;
*((HANDLE*)tid) = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)start, arg, 0, &ThreadId);
return *((HANDLE*)tid) ? 0 : -1;
#else
*tid = tsk_calloc(1, sizeof(pthread_t));
return pthread_create((pthread_t*)*tid, 0, start, arg);
#endif
}
/**@ingroup tsk_thread_group
* Join a thread.
* @param tid Pthread handle to the target thread.
* @retval If successful, returns zero. Otherwise, an error number is returned to indicate the error.
*/
int tsk_thread_join(void** tid)
{
int ret;
if(!tid){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(!*tid){
TSK_DEBUG_WARN("Cannot join NULL tid");
return 0;
}
#if TSK_UNDER_WINDOWS
ret = (WaitForSingleObject(*((HANDLE*)tid), INFINITE) == WAIT_FAILED) ? -1 : 0;
if(ret == 0){
CloseHandle(*((HANDLE*)tid));
*tid = tsk_null;
}
#else
if((ret = pthread_join(*((pthread_t*)*tid), 0)) == 0){
tsk_free(tid);
}
#endif
return ret;
}
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