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* MA 02111-1307 USA * |
* MA 02111-1307 USA * |
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***************************************************************************/ |
***************************************************************************/ |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#ifndef _GNU_SOURCE |
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# define _GNU_SOURCE 1 /* so _XOPEN_SOURCE will be defined by features.h */ |
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#endif |
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#ifdef HAVE_FEATURES_H |
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# include <features.h> |
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#endif |
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#if !defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 500 |
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# undef _XOPEN_SOURCE |
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# define _XOPEN_SOURCE 500 /* to define PTHREAD_MUTEX_ERRORCHECK */ |
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# warning "Seems you don't have a UNIX98 compatible system." |
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# warning "Please run LinuxSampler's selftest to make sure this won't be a problem!" |
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# warning "(compile tests with 'make tests', run them with 'src/testcases/linuxsamplertest')" |
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#endif |
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#include <iostream> |
#include <iostream> |
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#include <errno.h> |
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#include <stdlib.h> /* for exit(int) */ |
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#include "Mutex.h" |
#include "Mutex.h" |
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Mutex::Mutex() { |
Mutex::Mutex() { |
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// the following function call only works on UNIX98 compatible systems |
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#if (_XOPEN_SOURCE > 500) |
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if (pthread_mutexattr_settype(&__posix_mutexattr, PTHREAD_MUTEX_ERRORCHECK)) { |
if (pthread_mutexattr_settype(&__posix_mutexattr, PTHREAD_MUTEX_ERRORCHECK)) { |
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std::cout << "Mutex Constructor: Fatal error - unable to pthread_mutexattr_settype(PTHREAD_MUTEX_ERRORCHECK)\n" << std::flush; |
std::cout << "Mutex Constructor: Fatal error - unable to pthread_mutexattr_settype(PTHREAD_MUTEX_ERRORCHECK)\n" << std::flush; |
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exit(-1); |
exit(-1); |
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} |
} |
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#endif |
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pthread_mutex_init(&__posix_mutex, &__posix_mutexattr); |
pthread_mutex_init(&__posix_mutex, &__posix_mutexattr); |
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} |
} |
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pthread_mutex_lock(&__posix_mutex); |
pthread_mutex_lock(&__posix_mutex); |
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} |
} |
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bool Mutex::Trylock() { |
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if (pthread_mutex_trylock(&__posix_mutex) == EBUSY) |
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return false; |
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return true; |
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} |
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void Mutex::Unlock() { |
void Mutex::Unlock() { |
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pthread_mutex_unlock(&__posix_mutex); |
pthread_mutex_unlock(&__posix_mutex); |
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} |
} |