projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| 44626dc7 AH |
1 | /* |
| 2 | * Header used to adapt pthread-based POSIX code to Windows API threads. | |
| 3 | * | |
| 4 | * Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com> | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef PTHREAD_H | |
| 8 | #define PTHREAD_H | |
| 9 | ||
| 10 | #ifndef WIN32_LEAN_AND_MEAN | |
| 11 | #define WIN32_LEAN_AND_MEAN | |
| 12 | #endif | |
| 13 | ||
| 14 | #include <windows.h> | |
| 15 | ||
| 16 | /* | |
| 17 | * Defines that adapt Windows API threads to pthreads API | |
| 18 | */ | |
| 19 | #define pthread_mutex_t CRITICAL_SECTION | |
| 20 | ||
| 93749194 | 21 | #define pthread_mutex_init(a,b) (InitializeCriticalSection((a)), 0) |
| 44626dc7 AH |
22 | #define pthread_mutex_destroy(a) DeleteCriticalSection((a)) |
| 23 | #define pthread_mutex_lock EnterCriticalSection | |
| 24 | #define pthread_mutex_unlock LeaveCriticalSection | |
| 25 | ||
| 93749194 JS |
26 | typedef int pthread_mutexattr_t; |
| 27 | #define pthread_mutexattr_init(a) (*(a) = 0) | |
| 28 | #define pthread_mutexattr_destroy(a) do {} while (0) | |
| 29 | #define pthread_mutexattr_settype(a, t) 0 | |
| 30 | #define PTHREAD_MUTEX_RECURSIVE 0 | |
| 31 | ||
| 44626dc7 AH |
32 | /* |
| 33 | * Implement simple condition variable for Windows threads, based on ACE | |
| 34 | * implementation. | |
| 35 | * | |
| 36 | * See original implementation: http://bit.ly/1vkDjo | |
| 37 | * ACE homepage: http://www.cse.wustl.edu/~schmidt/ACE.html | |
| 38 | * See also: http://www.cse.wustl.edu/~schmidt/win32-cv-1.html | |
| 39 | */ | |
| 40 | typedef struct { | |
| 947c3464 JS |
41 | LONG waiters; |
| 42 | int was_broadcast; | |
| 43 | CRITICAL_SECTION waiters_lock; | |
| 44626dc7 | 44 | HANDLE sema; |
| 947c3464 | 45 | HANDLE continue_broadcast; |
| 44626dc7 AH |
46 | } pthread_cond_t; |
| 47 | ||
| 48 | extern int pthread_cond_init(pthread_cond_t *cond, const void *unused); | |
| 44626dc7 | 49 | extern int pthread_cond_destroy(pthread_cond_t *cond); |
| 44626dc7 | 50 | extern int pthread_cond_wait(pthread_cond_t *cond, CRITICAL_SECTION *mutex); |
| 44626dc7 | 51 | extern int pthread_cond_signal(pthread_cond_t *cond); |
| 947c3464 | 52 | extern int pthread_cond_broadcast(pthread_cond_t *cond); |
| 44626dc7 AH |
53 | |
| 54 | /* | |
| 55 | * Simple thread creation implementation using pthread API | |
| 56 | */ | |
| 57 | typedef struct { | |
| 58 | HANDLE handle; | |
| 59 | void *(*start_routine)(void*); | |
| 60 | void *arg; | |
| 912b2632 | 61 | DWORD tid; |
| 44626dc7 AH |
62 | } pthread_t; |
| 63 | ||
| 64 | extern int pthread_create(pthread_t *thread, const void *unused, | |
| 65 | void *(*start_routine)(void*), void *arg); | |
| 66 | ||
| 67 | /* | |
| 68 | * To avoid the need of copying a struct, we use small macro wrapper to pass | |
| 69 | * pointer to win32_pthread_join instead. | |
| 70 | */ | |
| 71 | #define pthread_join(a, b) win32_pthread_join(&(a), (b)) | |
| 72 | ||
| 73 | extern int win32_pthread_join(pthread_t *thread, void **value_ptr); | |
| 74 | ||
| 912b2632 JS |
75 | #define pthread_equal(t1, t2) ((t1).tid == (t2).tid) |
| 76 | extern pthread_t pthread_self(void); | |
| 77 | ||
| 78 | static inline int pthread_exit(void *ret) | |
| 79 | { | |
| 80 | ExitThread((DWORD)ret); | |
| 81 | } | |
| 82 | ||
| 83 | typedef DWORD pthread_key_t; | |
| 84 | static inline int pthread_key_create(pthread_key_t *keyp, void (*destructor)(void *value)) | |
| 85 | { | |
| 86 | return (*keyp = TlsAlloc()) == TLS_OUT_OF_INDEXES ? EAGAIN : 0; | |
| 87 | } | |
| 88 | ||
| 89 | static inline int pthread_setspecific(pthread_key_t key, const void *value) | |
| 90 | { | |
| 91 | return TlsSetValue(key, (void *)value) ? 0 : EINVAL; | |
| 92 | } | |
| 93 | ||
| 94 | static inline void *pthread_getspecific(pthread_key_t key) | |
| 95 | { | |
| 96 | return TlsGetValue(key); | |
| 97 | } | |
| 98 | ||
| 44626dc7 | 99 | #endif /* PTHREAD_H */ |