diff options
Diffstat (limited to 'Utilities/cmcurl/lib/curl_threads.c')
-rw-r--r-- | Utilities/cmcurl/lib/curl_threads.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_threads.c b/Utilities/cmcurl/lib/curl_threads.c new file mode 100644 index 0000000..c1624a9 --- /dev/null +++ b/Utilities/cmcurl/lib/curl_threads.c @@ -0,0 +1,146 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2016, 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.haxx.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. + * + ***************************************************************************/ + +#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) +# ifdef HAVE_PROCESS_H +# include <process.h> +# endif +#endif + +#include "curl_threads.h" +#include "curl_memory.h" +/* 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) + +/* !checksrc! disable SPACEBEFOREPAREN 1 */ +curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void *), + void *arg) +{ + curl_thread_t t; +#ifdef _WIN32_WCE + t = CreateThread(NULL, 0, func, arg, 0, NULL); +#else + t = (curl_thread_t)_beginthreadex(NULL, 0, func, arg, 0, NULL); +#endif + 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) +{ + 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_* */ |