CMake/Utilities/cmcurl/lib/vtls/polarssl_threadlock.c
Brad King 91e8d35ab8 Merge branch 'curl-upstream' into update-curl
Resolve conflicts by taking upstream side when possible and otherwise
integrating the changes from both sides.  Be carful in CMakeLists.txt
where the OPENSSL code block that we modified previously has moved, and
preserve our previous modifications in the new location.
2015-08-12 15:43:52 -04:00

154 lines
4.1 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010, 2011, Hoi-Ho Chan, <hoiho.chan@gmail.com>
* Copyright (C) 2013, 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 http://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"
#if defined(USE_POLARSSL) && \
(defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32))
#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 "polarssl_threadlock.h"
#include "curl_printf.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/* number of thread locks */
#define NUMT 2
/* This array will store all of the mutexes available to PolarSSL. */
static POLARSSL_MUTEX_T *mutex_buf = NULL;
int polarsslthreadlock_thread_setup(void)
{
int i;
int ret;
mutex_buf = malloc(NUMT * sizeof(POLARSSL_MUTEX_T));
if(!mutex_buf)
return 0; /* error, no number of threads defined */
#ifdef HAVE_PTHREAD_H
for(i = 0; i < NUMT; i++) {
ret = pthread_mutex_init(&mutex_buf[i], NULL);
if(ret)
return 0; /* pthread_mutex_init failed */
}
#elif defined(HAVE_PROCESS_H)
for(i = 0; i < NUMT; i++) {
mutex_buf[i] = CreateMutex(0, FALSE, 0);
if(mutex_buf[i] == 0)
return 0; /* CreateMutex failed */
}
#endif /* HAVE_PTHREAD_H */
return 1; /* OK */
}
int polarsslthreadlock_thread_cleanup(void)
{
int i;
int ret;
if(!mutex_buf)
return 0; /* error, no threads locks defined */
#ifdef HAVE_PTHREAD_H
for(i = 0; i < NUMT; i++) {
ret = pthread_mutex_destroy(&mutex_buf[i]);
if(ret)
return 0; /* pthread_mutex_destroy failed */
}
#elif defined(HAVE_PROCESS_H)
for(i = 0; i < NUMT; i++) {
ret = CloseHandle(mutex_buf[i]);
if(!ret)
return 0; /* CloseHandle failed */
}
#endif /* HAVE_PTHREAD_H */
free(mutex_buf);
mutex_buf = NULL;
return 1; /* OK */
}
int polarsslthreadlock_lock_function(int n)
{
int ret;
#ifdef HAVE_PTHREAD_H
if(n < NUMT) {
ret = pthread_mutex_lock(&mutex_buf[n]);
if(ret) {
DEBUGF(fprintf(stderr,
"Error: polarsslthreadlock_lock_function failed\n"));
return 0; /* pthread_mutex_lock failed */
}
}
#elif defined(HAVE_PROCESS_H)
if(n < NUMT) {
ret = (WaitForSingleObject(mutex_buf[n], INFINITE)==WAIT_FAILED?1:0);
if(ret) {
DEBUGF(fprintf(stderr,
"Error: polarsslthreadlock_lock_function failed\n"));
return 0; /* pthread_mutex_lock failed */
}
}
#endif /* HAVE_PTHREAD_H */
return 1; /* OK */
}
int polarsslthreadlock_unlock_function(int n)
{
int ret;
#ifdef HAVE_PTHREAD_H
if(n < NUMT) {
ret = pthread_mutex_unlock(&mutex_buf[n]);
if(ret) {
DEBUGF(fprintf(stderr,
"Error: polarsslthreadlock_unlock_function failed\n"));
return 0; /* pthread_mutex_unlock failed */
}
}
#elif defined(HAVE_PROCESS_H)
if(n < NUMT) {
ret = ReleaseMutex(mutex_buf[n]);
if(!ret) {
DEBUGF(fprintf(stderr,
"Error: polarsslthreadlock_unlock_function failed\n"));
return 0; /* pthread_mutex_lock failed */
}
}
#endif /* HAVE_PTHREAD_H */
return 1; /* OK */
}
#endif /* USE_POLARSSL */