1 | /***************************************************************************
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2 | * _ _ ____ _
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3 | * Project ___| | | | _ \| |
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4 | * / __| | | | |_) | |
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5 | * | (__| |_| | _ <| |___
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6 | * \___|\___/|_| \_\_____|
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7 | *
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8 | * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 | *
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10 | * This software is licensed as described in the file COPYING, which
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11 | * you should have received as part of this distribution. The terms
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12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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13 | *
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14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 | * copies of the Software, and permit persons to whom the Software is
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16 | * furnished to do so, under the terms of the COPYING file.
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17 | *
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18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 | * KIND, either express or implied.
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20 | *
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21 | ***************************************************************************/
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22 |
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23 | #include "curl_setup.h"
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24 |
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25 | #if defined(USE_THREADS_POSIX)
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26 | # ifdef HAVE_PTHREAD_H
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27 | # include <pthread.h>
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28 | # endif
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29 | #elif defined(USE_THREADS_WIN32)
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30 | # ifdef HAVE_PROCESS_H
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31 | # include <process.h>
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32 | # endif
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33 | #endif
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34 |
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35 | #include "curl_threads.h"
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36 | #include "curl_memory.h"
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37 | /* The last #include file should be: */
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38 | #include "memdebug.h"
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39 |
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40 | #if defined(USE_THREADS_POSIX)
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41 |
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42 | struct curl_actual_call {
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43 | unsigned int (*func)(void *);
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44 | void *arg;
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45 | };
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46 |
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47 | static void *curl_thread_create_thunk(void *arg)
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48 | {
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49 | struct curl_actual_call * ac = arg;
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50 | unsigned int (*func)(void *) = ac->func;
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51 | void *real_arg = ac->arg;
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52 |
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53 | free(ac);
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54 |
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55 | (*func)(real_arg);
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56 |
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57 | return 0;
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58 | }
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59 |
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60 | curl_thread_t Curl_thread_create(unsigned int (*func) (void*), void *arg)
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61 | {
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62 | curl_thread_t t = malloc(sizeof(pthread_t));
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63 | struct curl_actual_call *ac = malloc(sizeof(struct curl_actual_call));
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64 | if(!(ac && t))
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65 | goto err;
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66 |
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67 | ac->func = func;
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68 | ac->arg = arg;
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69 |
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70 | if(pthread_create(t, NULL, curl_thread_create_thunk, ac) != 0)
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71 | goto err;
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72 |
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73 | return t;
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74 |
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75 | err:
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76 | free(t);
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77 | free(ac);
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78 | return curl_thread_t_null;
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79 | }
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80 |
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81 | void Curl_thread_destroy(curl_thread_t hnd)
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82 | {
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83 | if(hnd != curl_thread_t_null) {
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84 | pthread_detach(*hnd);
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85 | free(hnd);
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86 | }
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87 | }
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88 |
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89 | int Curl_thread_join(curl_thread_t *hnd)
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90 | {
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91 | int ret = (pthread_join(**hnd, NULL) == 0);
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92 |
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93 | free(*hnd);
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94 | *hnd = curl_thread_t_null;
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95 |
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96 | return ret;
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97 | }
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98 |
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99 | #elif defined(USE_THREADS_WIN32)
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100 |
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101 | curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void*),
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102 | void *arg)
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103 | {
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104 | #ifdef _WIN32_WCE
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105 | return CreateThread(NULL, 0, func, arg, 0, NULL);
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106 | #else
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107 | curl_thread_t t;
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108 | t = (curl_thread_t)_beginthreadex(NULL, 0, func, arg, 0, NULL);
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109 | if((t == 0) || (t == (curl_thread_t)-1L))
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110 | return curl_thread_t_null;
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111 | return t;
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112 | #endif
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113 | }
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114 |
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115 | void Curl_thread_destroy(curl_thread_t hnd)
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116 | {
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117 | CloseHandle(hnd);
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118 | }
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119 |
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120 | int Curl_thread_join(curl_thread_t *hnd)
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121 | {
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122 | #if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
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123 | (_WIN32_WINNT < _WIN32_WINNT_VISTA)
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124 | int ret = (WaitForSingleObject(*hnd, INFINITE) == WAIT_OBJECT_0);
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125 | #else
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126 | int ret = (WaitForSingleObjectEx(*hnd, INFINITE, FALSE) == WAIT_OBJECT_0);
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127 | #endif
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128 |
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129 | Curl_thread_destroy(*hnd);
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130 |
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131 | *hnd = curl_thread_t_null;
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132 |
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133 | return ret;
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134 | }
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135 |
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136 | #endif /* USE_THREADS_* */
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