freshlybakedca.ke
Git fork
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
21static inline int return_0(int i UNUSED) {
22 return 0;
23}
24#define pthread_mutex_init(a,b) return_0((InitializeCriticalSection((a)), 0))
25#define pthread_mutex_destroy(a) DeleteCriticalSection((a))
26#define pthread_mutex_lock EnterCriticalSection
27#define pthread_mutex_unlock LeaveCriticalSection
28
29typedef int pthread_mutexattr_t;
30#define pthread_mutexattr_init(a) (*(a) = 0)
31#define pthread_mutexattr_destroy(a) do {} while (0)
32#define pthread_mutexattr_settype(a, t) 0
33#define PTHREAD_MUTEX_RECURSIVE 0
34
35#define pthread_cond_t CONDITION_VARIABLE
36
37#define pthread_cond_init(a,b) InitializeConditionVariable((a))
38#define pthread_cond_destroy(a) do {} while (0)
39#define pthread_cond_wait(a,b) return_0(SleepConditionVariableCS((a), (b), INFINITE))
40#define pthread_cond_signal WakeConditionVariable
41#define pthread_cond_broadcast WakeAllConditionVariable
42
43/*
44 * Simple thread creation implementation using pthread API
45 */
46typedef struct {
47 HANDLE handle;
48 void *(*start_routine)(void*);
49 void *arg;
50 DWORD tid;
51} pthread_t;
52
53int pthread_create(pthread_t *thread, const void *unused,
54 void *(*start_routine)(void*), void *arg);
55
56/*
57 * To avoid the need of copying a struct, we use small macro wrapper to pass
58 * pointer to win32_pthread_join instead.
59 */
60#define pthread_join(a, b) win32_pthread_join(&(a), (b))
61
62int win32_pthread_join(pthread_t *thread, void **value_ptr);
63
64#define pthread_equal(t1, t2) ((t1).tid == (t2).tid)
65pthread_t pthread_self(void);
66
67static inline void NORETURN pthread_exit(void *ret)
68{
69 _endthreadex((unsigned)(uintptr_t)ret);
70}
71
72typedef DWORD pthread_key_t;
73static inline int pthread_key_create(pthread_key_t *keyp, void (*destructor)(void *value) UNUSED)
74{
75 return (*keyp = TlsAlloc()) == TLS_OUT_OF_INDEXES ? EAGAIN : 0;
76}
77
78static inline int pthread_key_delete(pthread_key_t key)
79{
80 return TlsFree(key) ? 0 : EINVAL;
81}
82
83static inline int pthread_setspecific(pthread_key_t key, const void *value)
84{
85 return TlsSetValue(key, (void *)value) ? 0 : EINVAL;
86}
87
88static inline void *pthread_getspecific(pthread_key_t key)
89{
90 return TlsGetValue(key);
91}
92
93#ifndef __MINGW64_VERSION_MAJOR
94static inline int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset)
95{
96 return 0;
97}
98#endif
99
100#endif /* PTHREAD_H */