54 lines
1,012 B
Text
54 lines
1,012 B
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file pmutex_ext.h
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* @author rdb
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* @date 2019-05-12
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*/
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/**
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* Acquires the mutex.
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*/
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INLINE bool Extension<ReMutex>::
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acquire(bool blocking) const {
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if (_this->try_lock()) {
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return true;
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}
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if (!blocking) {
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return false;
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}
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// Release the GIL while we are waiting for the lock.
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#if defined(HAVE_THREADS) && !defined(SIMPLE_THREADS)
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PyThreadState *_save;
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Py_UNBLOCK_THREADS
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_this->lock();
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Py_BLOCK_THREADS
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#else
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_this->lock();
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#endif
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return true;
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}
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/**
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* Acquires the mutex.
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*/
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INLINE bool Extension<ReMutex>::
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__enter__() {
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return acquire(true);
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}
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/**
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* Releases the mutex.
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*/
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INLINE void Extension<ReMutex>::
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__exit__(PyObject *, PyObject *, PyObject *) {
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_this->unlock();
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}
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