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/* babl - dynamically extendable universal pixel conversion library.
* Copyright (C) 2009, Øyvind Kolås.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "babl-mutex.h"
#include <stdlib.h>
#ifndef _WIN32
static const pthread_mutexattr_t *
get_mutex_attr (void)
{
static pthread_mutexattr_t mutexattr;
static int initialized = 0;
if (!initialized)
{
/* On some platforms, this will keep an allocation till process
termination, but it isn't a growing leak. */
pthread_mutexattr_init (&mutexattr);
pthread_mutexattr_settype (&mutexattr, PTHREAD_MUTEX_RECURSIVE);
initialized = 1;
}
return &mutexattr;
}
#endif
BablMutex *
babl_mutex_new (void)
{
BablMutex *mutex = malloc (sizeof (BablMutex));
#ifdef _WIN32
InitializeCriticalSection (mutex);
#else
pthread_mutex_init (mutex, get_mutex_attr ());
#endif
return mutex;
}
void
babl_mutex_destroy (BablMutex *mutex)
{
#ifdef _WIN32
DeleteCriticalSection (mutex);
#else
pthread_mutex_destroy(mutex);
#endif
free (mutex);
}
void
babl_mutex_lock (BablMutex *mutex)
{
#ifdef _WIN32
EnterCriticalSection (mutex);
#else
pthread_mutex_lock (mutex);
#endif
}
void
babl_mutex_unlock (BablMutex *mutex)
{
#ifdef _WIN32
LeaveCriticalSection (mutex);
#else
pthread_mutex_unlock (mutex);
#endif
}
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