1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#if defined(USE_THREADS_POSIX)
# ifdef HAVE_PTHREAD_H
# include <pthread.h>
# endif
#elif defined(USE_THREADS_WIN32)
# include <process.h>
#endif
#include "curl_threads.h"
#ifdef BUILDING_LIBCURL
#include "curl_memory.h"
#endif
/* The last #include file should be: */
#include "memdebug.h"
#if defined(USE_THREADS_POSIX)
struct Curl_actual_call {
unsigned int (*func)(void *);
void *arg;
};
static void *curl_thread_create_thunk(void *arg)
{
struct Curl_actual_call *ac = arg;
unsigned int (*func)(void *) = ac->func;
void *real_arg = ac->arg;
free(ac);
(*func)(real_arg);
return 0;
}
curl_thread_t Curl_thread_create(unsigned int (*func) (void *), void *arg)
{
curl_thread_t t = malloc(sizeof(pthread_t));
struct Curl_actual_call *ac = malloc(sizeof(struct Curl_actual_call));
if(!(ac && t))
goto err;
ac->func = func;
ac->arg = arg;
if(pthread_create(t, NULL, curl_thread_create_thunk, ac) != 0)
goto err;
return t;
err:
free(t);
free(ac);
return curl_thread_t_null;
}
void Curl_thread_destroy(curl_thread_t hnd)
{
if(hnd != curl_thread_t_null) {
pthread_detach(*hnd);
free(hnd);
}
}
int Curl_thread_join(curl_thread_t *hnd)
{
int ret = (pthread_join(**hnd, NULL) == 0);
free(*hnd);
*hnd = curl_thread_t_null;
return ret;
}
#elif defined(USE_THREADS_WIN32)
curl_thread_t Curl_thread_create(
#if defined(_WIN32_WCE) || defined(CURL_WINDOWS_UWP)
DWORD
#else
unsigned int
#endif
(CURL_STDCALL *func) (void *),
void *arg)
{
#if defined(_WIN32_WCE) || defined(CURL_WINDOWS_UWP)
typedef HANDLE curl_win_thread_handle_t;
#else
typedef uintptr_t curl_win_thread_handle_t;
#endif
curl_thread_t t;
curl_win_thread_handle_t thread_handle;
#if defined(_WIN32_WCE) || defined(CURL_WINDOWS_UWP)
thread_handle = CreateThread(NULL, 0, func, arg, 0, NULL);
#else
thread_handle = _beginthreadex(NULL, 0, func, arg, 0, NULL);
#endif
t = (curl_thread_t)thread_handle;
if((t == 0) || (t == LongToHandle(-1L))) {
#ifdef _WIN32_WCE
DWORD gle = GetLastError();
errno = ((gle == ERROR_ACCESS_DENIED ||
gle == ERROR_NOT_ENOUGH_MEMORY) ?
EACCES : EINVAL);
#endif
return curl_thread_t_null;
}
return t;
}
void Curl_thread_destroy(curl_thread_t hnd)
{
if(hnd != curl_thread_t_null)
CloseHandle(hnd);
}
int Curl_thread_join(curl_thread_t *hnd)
{
#if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
(_WIN32_WINNT < _WIN32_WINNT_VISTA)
int ret = (WaitForSingleObject(*hnd, INFINITE) == WAIT_OBJECT_0);
#else
int ret = (WaitForSingleObjectEx(*hnd, INFINITE, FALSE) == WAIT_OBJECT_0);
#endif
Curl_thread_destroy(*hnd);
*hnd = curl_thread_t_null;
return ret;
}
#endif /* USE_THREADS_* */
|
