197 lines
4.7 KiB
C
197 lines
4.7 KiB
C
/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tsk_thread.c
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* @brief Utility functions for threading.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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*/
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#include "tsk_thread.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#if TSK_UNDER_WINDOWS
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# include <windows.h>
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#endif
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#if TSK_UNDER_WINDOWS_RT
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# include "../winrt/ThreadEmulation.h"
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using namespace ThreadEmulation;
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#endif
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#include <string.h>
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/**@defgroup tsk_thread_group Utility functions for threading.
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*/
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/**@ingroup tsk_thread_group
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*/
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void tsk_thread_sleep(uint64_t ms)
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{
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#if TSK_UNDER_WINDOWS
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Sleep((DWORD)ms);
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#else
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struct timespec interval;
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interval.tv_sec = (long)(ms/1000);
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interval.tv_nsec = (long)(ms%1000) * 1000000;
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nanosleep(&interval, 0);
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#endif
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}
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/**@ingroup tsk_thread_group
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* Creates a new thread.
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* @param handle Handle id of the newly created thread. The returned handle should be destroyed using @ref tsk_thread_join()
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* @param start The function to be run as the new thread's start routine
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* @param arg An address for the argument for the thread's start routine
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* @retval If successful, returns zero. Otherwise, an error number is returned to indicate the error
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*/
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int tsk_thread_create(tsk_thread_handle_t** handle, void *(TSK_STDCALL *start) (void *), void *arg)
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{
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#if TSK_UNDER_WINDOWS
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*((HANDLE*)handle) = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)start, arg, 0, NULL);
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return *((HANDLE*)handle) ? 0 : -1;
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#else
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*handle = tsk_calloc(1, sizeof(pthread_t));
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return pthread_create((pthread_t*)*handle, 0, start, arg);
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#endif
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}
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/**@ingroup tsk_thread_group
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*/
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int tsk_thread_set_priority(tsk_thread_handle_t* handle, int32_t priority)
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{
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if(!handle){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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#if TSK_UNDER_WINDOWS
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{
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int ret = SetThreadPriority(handle, priority) ? 0 : -1;
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#if TSK_UNDER_WINDOWS_RT
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// It's not possible to set priority on WP8 when thread is not in suspended state -> do nothing and don't bother us
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if(ret){
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TSK_DEBUG_INFO("SetThreadPriority() failed but nothing to worry about");
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ret = 0;
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}
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#endif
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return ret;
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}
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#else
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struct sched_param sp;
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int ret;
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memset(&sp, 0, sizeof(struct sched_param));
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sp.sched_priority = priority;
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if ((ret = pthread_setschedparam(*((pthread_t*)handle), SCHED_OTHER, &sp))) {
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TSK_DEBUG_ERROR("Failed to change priority to %d with error code=%d", priority, ret);
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return ret;
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}
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return 0;
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#endif
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}
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/**@ingroup tsk_thread_group
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*/
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int tsk_thread_set_priority_2(int32_t priority)
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{
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#if TSK_UNDER_WINDOWS
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TSK_DEBUG_ERROR("Not implemented");
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return -1;
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#else
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pthread_t thread = pthread_self();
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return tsk_thread_set_priority(&thread, priority);
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#endif
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}
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tsk_thread_id_t tsk_thread_get_id()
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{
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#if TSK_UNDER_WINDOWS
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return GetCurrentThreadId();
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#else
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return pthread_self();
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#endif
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}
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tsk_bool_t tsk_thread_id_equals(tsk_thread_id_t* id_1, tsk_thread_id_t *id_2)
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{
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if(!id_1 || !id_2){
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TSK_DEBUG_ERROR("Invalid parameter");
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return tsk_false;
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}
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#if TSK_UNDER_WINDOWS
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return (*id_1 == *id_2);
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#else
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return (pthread_equal(*id_1, *id_2) != 0);
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#endif
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}
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/**@ingroup tsk_thread_group
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* Join a thread.
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* @param handle Pthread handle to the target thread.
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* @retval If successful, returns zero. Otherwise, an error number is returned to indicate the error.
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*/
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int tsk_thread_join(tsk_thread_handle_t** handle)
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{
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int ret;
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if(!handle){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!*handle){
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TSK_DEBUG_WARN("Cannot join NULL handle");
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return 0;
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}
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#if TSK_UNDER_WINDOWS
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# if TSK_UNDER_WINDOWS_RT
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ret = (WaitForSingleObjectEx(*((HANDLE*)handle), INFINITE, TRUE) == WAIT_FAILED) ? -1 : 0;
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# else
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ret = (WaitForSingleObject(*((HANDLE*)handle), INFINITE) == WAIT_FAILED) ? -1 : 0;
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#endif
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if(ret == 0){
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ret = tsk_thread_destroy(handle);
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}
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#else
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if((ret = pthread_join(*((pthread_t*)*handle), 0)) == 0){
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ret = tsk_thread_destroy(handle);
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}
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#endif
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return ret;
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}
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int tsk_thread_destroy(tsk_thread_handle_t** handle)
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{
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if(handle && *handle){
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#if TSK_UNDER_WINDOWS
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CloseHandle(*((HANDLE*)handle));
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*handle = tsk_null;
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#else
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tsk_free(handle);
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#endif
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}
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return 0;
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}
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