Merge branch 'tb/xcurl-off-t'
[git] / compat / win32 / pthread.c
1 /*
2  * Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com>
3  *
4  * DISCLAIMER: The implementation is Git-specific, it is subset of original
5  * Pthreads API, without lots of other features that Git doesn't use.
6  * Git also makes sure that the passed arguments are valid, so there's
7  * no need for double-checking.
8  */
9
10 #include "../../git-compat-util.h"
11 #include "pthread.h"
12
13 #include <errno.h>
14 #include <limits.h>
15
16 static unsigned __stdcall win32_start_routine(void *arg)
17 {
18         pthread_t *thread = arg;
19         thread->tid = GetCurrentThreadId();
20         thread->arg = thread->start_routine(thread->arg);
21         return 0;
22 }
23
24 int pthread_create(pthread_t *thread, const void *unused,
25                    void *(*start_routine)(void*), void *arg)
26 {
27         thread->arg = arg;
28         thread->start_routine = start_routine;
29         thread->handle = (HANDLE)
30                 _beginthreadex(NULL, 0, win32_start_routine, thread, 0, NULL);
31
32         if (!thread->handle)
33                 return errno;
34         else
35                 return 0;
36 }
37
38 int win32_pthread_join(pthread_t *thread, void **value_ptr)
39 {
40         DWORD result = WaitForSingleObject(thread->handle, INFINITE);
41         switch (result) {
42                 case WAIT_OBJECT_0:
43                         if (value_ptr)
44                                 *value_ptr = thread->arg;
45                         return 0;
46                 case WAIT_ABANDONED:
47                         return EINVAL;
48                 default:
49                         return err_win_to_posix(GetLastError());
50         }
51 }
52
53 pthread_t pthread_self(void)
54 {
55         pthread_t t = { NULL };
56         t.tid = GetCurrentThreadId();
57         return t;
58 }