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104 lines
2.7 KiB
104 lines
2.7 KiB
/* |
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* Header used to adapt pthread-based POSIX code to Windows API threads. |
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* |
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* Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com> |
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*/ |
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#ifndef PTHREAD_H |
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#define PTHREAD_H |
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#ifndef WIN32_LEAN_AND_MEAN |
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#define WIN32_LEAN_AND_MEAN |
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#endif |
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#include <windows.h> |
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/* |
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* Defines that adapt Windows API threads to pthreads API |
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*/ |
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#define pthread_mutex_t CRITICAL_SECTION |
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#define pthread_mutex_init(a,b) (InitializeCriticalSection((a)), 0) |
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#define pthread_mutex_destroy(a) DeleteCriticalSection((a)) |
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#define pthread_mutex_lock EnterCriticalSection |
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#define pthread_mutex_unlock LeaveCriticalSection |
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typedef int pthread_mutexattr_t; |
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#define pthread_mutexattr_init(a) (*(a) = 0) |
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#define pthread_mutexattr_destroy(a) do {} while (0) |
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#define pthread_mutexattr_settype(a, t) 0 |
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#define PTHREAD_MUTEX_RECURSIVE 0 |
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/* |
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* Implement simple condition variable for Windows threads, based on ACE |
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* implementation. |
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* |
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* See original implementation: http://bit.ly/1vkDjo |
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* ACE homepage: http://www.cse.wustl.edu/~schmidt/ACE.html |
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* See also: http://www.cse.wustl.edu/~schmidt/win32-cv-1.html |
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*/ |
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typedef struct { |
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LONG waiters; |
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int was_broadcast; |
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CRITICAL_SECTION waiters_lock; |
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HANDLE sema; |
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HANDLE continue_broadcast; |
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} pthread_cond_t; |
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extern int pthread_cond_init(pthread_cond_t *cond, const void *unused); |
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extern int pthread_cond_destroy(pthread_cond_t *cond); |
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extern int pthread_cond_wait(pthread_cond_t *cond, CRITICAL_SECTION *mutex); |
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extern int pthread_cond_signal(pthread_cond_t *cond); |
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extern int pthread_cond_broadcast(pthread_cond_t *cond); |
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/* |
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* Simple thread creation implementation using pthread API |
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*/ |
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typedef struct { |
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HANDLE handle; |
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void *(*start_routine)(void*); |
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void *arg; |
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DWORD tid; |
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} pthread_t; |
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extern int pthread_create(pthread_t *thread, const void *unused, |
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void *(*start_routine)(void*), void *arg); |
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/* |
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* To avoid the need of copying a struct, we use small macro wrapper to pass |
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* pointer to win32_pthread_join instead. |
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*/ |
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#define pthread_join(a, b) win32_pthread_join(&(a), (b)) |
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extern int win32_pthread_join(pthread_t *thread, void **value_ptr); |
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#define pthread_equal(t1, t2) ((t1).tid == (t2).tid) |
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extern pthread_t pthread_self(void); |
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static inline int pthread_exit(void *ret) |
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{ |
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ExitThread((DWORD)ret); |
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} |
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typedef DWORD pthread_key_t; |
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static inline int pthread_key_create(pthread_key_t *keyp, void (*destructor)(void *value)) |
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{ |
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return (*keyp = TlsAlloc()) == TLS_OUT_OF_INDEXES ? EAGAIN : 0; |
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} |
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static inline int pthread_key_delete(pthread_key_t key) |
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{ |
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return TlsFree(key) ? 0 : EINVAL; |
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} |
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static inline int pthread_setspecific(pthread_key_t key, const void *value) |
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{ |
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return TlsSetValue(key, (void *)value) ? 0 : EINVAL; |
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} |
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static inline void *pthread_getspecific(pthread_key_t key) |
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{ |
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return TlsGetValue(key); |
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} |
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#endif /* PTHREAD_H */
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