ref: 82f7611b3c560a5756e08c65fbcecc053dbf0a05
dir: /src/win32/thread.c/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #if defined(_WIN32) && !defined(HAVE_PTHREAD_H) #include <windows.h> #include <process.h> #include <errno.h> #include "config.h" #include "src/thread.h" void pthread_mutex_init(pthread_mutex_t* mutex, const pthread_mutexattr_t* attr) { (void)attr; InitializeCriticalSection(mutex); } void pthread_mutex_destroy(pthread_mutex_t* mutex) { DeleteCriticalSection(mutex); } void pthread_mutex_lock(pthread_mutex_t* mutex) { EnterCriticalSection(mutex); } void pthread_mutex_unlock(pthread_mutex_t* mutex) { LeaveCriticalSection(mutex); } void pthread_cond_init(pthread_cond_t* cond, const pthread_condattr_t* attr) { (void)attr; InitializeConditionVariable(cond); } void pthread_cond_destroy(pthread_cond_t* cond) { (void)cond; } void pthread_cond_wait(pthread_cond_t* cond, pthread_mutex_t* mutex) { SleepConditionVariableCS(cond, mutex, INFINITE); } void pthread_cond_signal(pthread_cond_t* cond) { WakeConditionVariable(cond); } void pthread_cond_broadcast(pthread_cond_t* cond) { WakeAllConditionVariable(cond); } typedef struct dav1d_win32_thread_t { HANDLE h; void* param; void*(*proc)(void*); void* res; } dav1d_win32_thread_t; static unsigned __stdcall dav1d_thread_entrypoint(void* data) { dav1d_win32_thread_t* t = data; t->res = t->proc( t->param ); return 0; } int pthread_create(pthread_t* thread, const pthread_attr_t* attr, void*(*proc)(void*), void* param) { dav1d_win32_thread_t* th = *thread = malloc(sizeof(*th)); if (th == NULL) return ENOMEM; th->proc = proc; th->param = param; uintptr_t h = _beginthreadex(NULL, 0, dav1d_thread_entrypoint, th, 0, NULL); if ( h == 0 ) { int err = errno; free(th); *thread = NULL; return err; } th->h = (HANDLE)h; return 0; } void pthread_join(pthread_t thread, void** res) { dav1d_win32_thread_t* th = thread; WaitForSingleObject(th->h, INFINITE); if (res != NULL) *res = th->res; free(th); } #endif