ref: 1d7754830ec78b9124c4c8be198aa802669675db
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) #include <windows.h> #include <process.h> #include <errno.h> #include "config.h" #include "src/thread.h" 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 dav1d_pthread_create(pthread_t* thread, const pthread_attr_t* attr, void*(*proc)(void*), void* param) { dav1d_win32_thread_t* th = *thread = malloc(sizeof(*th)); (void)attr; 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 dav1d_pthread_join(pthread_t thread, void** res) { dav1d_win32_thread_t* th = thread; WaitForSingleObject(th->h, INFINITE); if (res != NULL) *res = th->res; CloseHandle(th->h); free(th); } int dav1d_pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) { BOOL fPending = FALSE; BOOL fStatus; fStatus = InitOnceBeginInitialize(once_control, 0, &fPending, NULL); if (fStatus != TRUE) return EINVAL; if (fPending == TRUE) init_routine(); fStatus = InitOnceComplete(once_control, 0, NULL); if (!fStatus) return EINVAL; return 0; } #endif