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comparison mupdf-source/thirdparty/curl/lib/curl_threads.c @ 3:2c135c81b16c

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MERGE: upstream PyMuPDF 1.26.4 with MuPDF 1.26.7
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:44:09 +0200
parents b50eed0cc0ef
children
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0:6015a75abc2d 3:2c135c81b16c
1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23 #include "curl_setup.h"
24
25 #include <curl/curl.h>
26
27 #if defined(USE_THREADS_POSIX)
28 # ifdef HAVE_PTHREAD_H
29 # include <pthread.h>
30 # endif
31 #elif defined(USE_THREADS_WIN32)
32 # ifdef HAVE_PROCESS_H
33 # include <process.h>
34 # endif
35 #endif
36
37 #include "curl_threads.h"
38 #include "curl_memory.h"
39 /* The last #include file should be: */
40 #include "memdebug.h"
41
42 #if defined(USE_THREADS_POSIX)
43
44 struct curl_actual_call {
45 unsigned int (*func)(void *);
46 void *arg;
47 };
48
49 static void *curl_thread_create_thunk(void *arg)
50 {
51 struct curl_actual_call * ac = arg;
52 unsigned int (*func)(void *) = ac->func;
53 void *real_arg = ac->arg;
54
55 free(ac);
56
57 (*func)(real_arg);
58
59 return 0;
60 }
61
62 curl_thread_t Curl_thread_create(unsigned int (*func) (void *), void *arg)
63 {
64 curl_thread_t t = malloc(sizeof(pthread_t));
65 struct curl_actual_call *ac = malloc(sizeof(struct curl_actual_call));
66 if(!(ac && t))
67 goto err;
68
69 ac->func = func;
70 ac->arg = arg;
71
72 if(pthread_create(t, NULL, curl_thread_create_thunk, ac) != 0)
73 goto err;
74
75 return t;
76
77 err:
78 free(t);
79 free(ac);
80 return curl_thread_t_null;
81 }
82
83 void Curl_thread_destroy(curl_thread_t hnd)
84 {
85 if(hnd != curl_thread_t_null) {
86 pthread_detach(*hnd);
87 free(hnd);
88 }
89 }
90
91 int Curl_thread_join(curl_thread_t *hnd)
92 {
93 int ret = (pthread_join(**hnd, NULL) == 0);
94
95 free(*hnd);
96 *hnd = curl_thread_t_null;
97
98 return ret;
99 }
100
101 #elif defined(USE_THREADS_WIN32)
102
103 /* !checksrc! disable SPACEBEFOREPAREN 1 */
104 curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void *),
105 void *arg)
106 {
107 #ifdef _WIN32_WCE
108 typedef HANDLE curl_win_thread_handle_t;
109 #elif defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
110 typedef unsigned long curl_win_thread_handle_t;
111 #else
112 typedef uintptr_t curl_win_thread_handle_t;
113 #endif
114 curl_thread_t t;
115 curl_win_thread_handle_t thread_handle;
116 #ifdef _WIN32_WCE
117 thread_handle = CreateThread(NULL, 0, func, arg, 0, NULL);
118 #else
119 thread_handle = _beginthreadex(NULL, 0, func, arg, 0, NULL);
120 #endif
121 t = (curl_thread_t)thread_handle;
122 if((t == 0) || (t == LongToHandle(-1L))) {
123 #ifdef _WIN32_WCE
124 DWORD gle = GetLastError();
125 errno = ((gle == ERROR_ACCESS_DENIED ||
126 gle == ERROR_NOT_ENOUGH_MEMORY) ?
127 EACCES : EINVAL);
128 #endif
129 return curl_thread_t_null;
130 }
131 return t;
132 }
133
134 void Curl_thread_destroy(curl_thread_t hnd)
135 {
136 CloseHandle(hnd);
137 }
138
139 int Curl_thread_join(curl_thread_t *hnd)
140 {
141 #if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
142 (_WIN32_WINNT < _WIN32_WINNT_VISTA)
143 int ret = (WaitForSingleObject(*hnd, INFINITE) == WAIT_OBJECT_0);
144 #else
145 int ret = (WaitForSingleObjectEx(*hnd, INFINITE, FALSE) == WAIT_OBJECT_0);
146 #endif
147
148 Curl_thread_destroy(*hnd);
149
150 *hnd = curl_thread_t_null;
151
152 return ret;
153 }
154
155 #endif /* USE_THREADS_* */