53 lines
1,006 B
Text
53 lines
1,006 B
Text
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file pmutex_ext.h
|
|
* @author rdb
|
|
* @date 2019-05-12
|
|
*/
|
|
|
|
/**
|
|
* Acquires the mutex.
|
|
*/
|
|
INLINE bool Extension<Mutex>::
|
|
acquire(bool blocking) const {
|
|
if (_this->try_lock()) {
|
|
return true;
|
|
}
|
|
|
|
if (!blocking) {
|
|
return false;
|
|
}
|
|
|
|
// Release the GIL while we are waiting for the lock.
|
|
#if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
|
|
PyThreadState *_save;
|
|
Py_UNBLOCK_THREADS
|
|
_this->lock();
|
|
Py_BLOCK_THREADS
|
|
#else
|
|
_this->lock();
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Acquires the mutex.
|
|
*/
|
|
INLINE bool Extension<Mutex>::
|
|
__enter__() {
|
|
return acquire(true);
|
|
}
|
|
|
|
/**
|
|
* Releases the mutex.
|
|
*/
|
|
INLINE void Extension<Mutex>::
|
|
__exit__(PyObject *, PyObject *, PyObject *) {
|
|
_this->unlock();
|
|
}
|