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134 строки
4.3 KiB
C
134 строки
4.3 KiB
C
/***************************************************************************
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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) 2013 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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* Copyright (C) 2010, 2011, Hoi-Ho Chan, <hoiho.chan@gmail.com>
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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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***************************************************************************/
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#include "curl_setup.h"
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#if defined(USE_MBEDTLS) && \
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((defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)) || \
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(defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)))
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#if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)
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# include <pthread.h>
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# define MBEDTLS_MUTEX_T pthread_mutex_t
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#elif defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)
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# include <process.h>
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# define MBEDTLS_MUTEX_T HANDLE
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#endif
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#include "mbedtls_threadlock.h"
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#include "curl_printf.h"
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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/* number of thread locks */
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#define NUMT 2
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/* This array will store all of the mutexes available to Mbedtls. */
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static MBEDTLS_MUTEX_T *mutex_buf = NULL;
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int Curl_mbedtlsthreadlock_thread_setup(void)
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{
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int i;
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mutex_buf = calloc(NUMT * sizeof(MBEDTLS_MUTEX_T), 1);
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if(!mutex_buf)
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return 0; /* error, no number of threads defined */
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for(i = 0; i < NUMT; i++) {
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#if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)
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if(pthread_mutex_init(&mutex_buf[i], NULL))
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return 0; /* pthread_mutex_init failed */
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#elif defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)
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mutex_buf[i] = CreateMutex(0, FALSE, 0);
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if(mutex_buf[i] == 0)
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return 0; /* CreateMutex failed */
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#endif /* USE_THREADS_POSIX && HAVE_PTHREAD_H */
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}
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return 1; /* OK */
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}
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int Curl_mbedtlsthreadlock_thread_cleanup(void)
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{
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int i;
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if(!mutex_buf)
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return 0; /* error, no threads locks defined */
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for(i = 0; i < NUMT; i++) {
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#if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)
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if(pthread_mutex_destroy(&mutex_buf[i]))
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return 0; /* pthread_mutex_destroy failed */
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#elif defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)
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if(!CloseHandle(mutex_buf[i]))
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return 0; /* CloseHandle failed */
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#endif /* USE_THREADS_POSIX && HAVE_PTHREAD_H */
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}
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free(mutex_buf);
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mutex_buf = NULL;
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return 1; /* OK */
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}
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int Curl_mbedtlsthreadlock_lock_function(int n)
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{
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if(n < NUMT) {
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#if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)
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if(pthread_mutex_lock(&mutex_buf[n])) {
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DEBUGF(fprintf(stderr,
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"Error: mbedtlsthreadlock_lock_function failed\n"));
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return 0; /* pthread_mutex_lock failed */
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}
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#elif defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)
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if(WaitForSingleObject(mutex_buf[n], INFINITE) == WAIT_FAILED) {
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DEBUGF(fprintf(stderr,
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"Error: mbedtlsthreadlock_lock_function failed\n"));
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return 0; /* pthread_mutex_lock failed */
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}
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#endif /* USE_THREADS_POSIX && HAVE_PTHREAD_H */
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}
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return 1; /* OK */
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}
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int Curl_mbedtlsthreadlock_unlock_function(int n)
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{
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if(n < NUMT) {
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#if defined(USE_THREADS_POSIX) && defined(HAVE_PTHREAD_H)
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if(pthread_mutex_unlock(&mutex_buf[n])) {
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DEBUGF(fprintf(stderr,
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"Error: mbedtlsthreadlock_unlock_function failed\n"));
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return 0; /* pthread_mutex_unlock failed */
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}
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#elif defined(USE_THREADS_WIN32) && defined(HAVE_PROCESS_H)
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if(!ReleaseMutex(mutex_buf[n])) {
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DEBUGF(fprintf(stderr,
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"Error: mbedtlsthreadlock_unlock_function failed\n"));
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return 0; /* pthread_mutex_lock failed */
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}
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#endif /* USE_THREADS_POSIX && HAVE_PTHREAD_H */
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}
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return 1; /* OK */
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}
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#endif /* USE_MBEDTLS */
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