mirror of
https://github.com/curl/curl.git
synced 2026-04-13 12:41:42 +08:00
de3fc1d7ad
Remove use of pthread_cancel in asnyc threaded resolving. While there are system where this works, others might leak to resource leakage (memory, files, etc.). The popular nsswitch is one example where resolve code can be dragged in that is not prepared. The overall promise and mechanism of pthread_cancel() is just too brittle and the historcal design of getaddrinfo() continues to haunt us. Fixes #18532 Reported-by: Javier Blazquez Closes #18540
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
#ifndef HEADER_CURL_THREADS_H
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#define HEADER_CURL_THREADS_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifdef USE_THREADS_POSIX
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# define CURL_STDCALL
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# define curl_mutex_t pthread_mutex_t
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# define curl_thread_t pthread_t *
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# define curl_thread_t_null (pthread_t *)0
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# define Curl_mutex_init(m) pthread_mutex_init(m, NULL)
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# define Curl_mutex_acquire(m) pthread_mutex_lock(m)
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# define Curl_mutex_release(m) pthread_mutex_unlock(m)
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# define Curl_mutex_destroy(m) pthread_mutex_destroy(m)
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#elif defined(USE_THREADS_WIN32)
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# define CURL_STDCALL __stdcall
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# define curl_mutex_t CRITICAL_SECTION
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# define curl_thread_t HANDLE
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# define curl_thread_t_null (HANDLE)0
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# if !defined(_WIN32_WINNT) || (_WIN32_WINNT < _WIN32_WINNT_VISTA)
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# define Curl_mutex_init(m) InitializeCriticalSection(m)
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# else
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# define Curl_mutex_init(m) InitializeCriticalSectionEx(m, 0, 1)
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# endif
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# define Curl_mutex_acquire(m) EnterCriticalSection(m)
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# define Curl_mutex_release(m) LeaveCriticalSection(m)
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# define Curl_mutex_destroy(m) DeleteCriticalSection(m)
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#else
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# define CURL_STDCALL
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#endif
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#if defined(CURL_WINDOWS_UWP) || defined(UNDER_CE)
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#define CURL_THREAD_RETURN_T DWORD
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#else
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#define CURL_THREAD_RETURN_T unsigned int
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#endif
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#if defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
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curl_thread_t Curl_thread_create(CURL_THREAD_RETURN_T
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(CURL_STDCALL *func) (void *), void *arg);
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void Curl_thread_destroy(curl_thread_t *hnd);
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int Curl_thread_join(curl_thread_t *hnd);
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#endif /* USE_THREADS_POSIX || USE_THREADS_WIN32 */
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#endif /* HEADER_CURL_THREADS_H */
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