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- /*
- * Code for simulating pthreads API on Windows. This is Git-specific,
- * but it is enough for Numexpr needs too.
- *
- * Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * DISCLAIMER: The implementation is Git-specific, it is subset of original
- * Pthreads API, without lots of other features that Git doesn't use.
- * Git also makes sure that the passed arguments are valid, so there's
- * no need for double-checking.
- */
- #ifndef PTHREAD_H
- #define PTHREAD_H
- #ifndef WIN32_LEAN_AND_MEAN
- #define WIN32_LEAN_AND_MEAN
- #endif
- #include <windows.h>
- /*
- * Defines that adapt Windows API threads to pthreads API
- */
- #define pthread_mutex_t CRITICAL_SECTION
- #define pthread_mutex_init(a,b) InitializeCriticalSection((a))
- #define pthread_mutex_destroy(a) DeleteCriticalSection((a))
- #define pthread_mutex_lock EnterCriticalSection
- #define pthread_mutex_unlock LeaveCriticalSection
- /*
- * Implement simple condition variable for Windows threads, based on ACE
- * implementation.
- *
- * See original implementation: http://bit.ly/1vkDjo
- * ACE homepage: http://www.cse.wustl.edu/~schmidt/ACE.html
- * See also: http://www.cse.wustl.edu/~schmidt/win32-cv-1.html
- */
- typedef struct {
- LONG waiters;
- int was_broadcast;
- CRITICAL_SECTION waiters_lock;
- HANDLE sema;
- HANDLE continue_broadcast;
- } pthread_cond_t;
- extern int pthread_cond_init(pthread_cond_t *cond, const void *unused);
- extern int pthread_cond_destroy(pthread_cond_t *cond);
- extern int pthread_cond_wait(pthread_cond_t *cond, CRITICAL_SECTION *mutex);
- extern int pthread_cond_signal(pthread_cond_t *cond);
- extern int pthread_cond_broadcast(pthread_cond_t *cond);
- /*
- * Simple thread creation implementation using pthread API
- */
- typedef struct {
- HANDLE handle;
- void *(*start_routine)(void*);
- void *arg;
- } pthread_t;
- extern int pthread_create(pthread_t *thread, const void *unused,
- void *(*start_routine)(void*), void *arg);
- /*
- * To avoid the need of copying a struct, we use small macro wrapper to pass
- * pointer to win32_pthread_join instead.
- */
- #define pthread_join(a, b) win32_pthread_join(&(a), (b))
- extern int win32_pthread_join(pthread_t *thread, void **value_ptr);
- #endif /* PTHREAD_H */
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