75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/**
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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 mutexPosixImpl.h
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* @author drose
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* @date 2006-02-10
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*/
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#ifndef MUTEXPOSIXIMPL_H
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#define MUTEXPOSIXIMPL_H
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#include "dtoolbase.h"
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#include "selectThreadImpl.h"
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#ifdef HAVE_POSIX_THREADS
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#include <pthread.h>
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#include <errno.h>
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#include <assert.h>
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/**
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* Uses Posix threads to implement a mutex.
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*/
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class EXPCL_DTOOL_DTOOLBASE MutexPosixImpl {
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public:
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constexpr MutexPosixImpl() noexcept;
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MutexPosixImpl(const MutexPosixImpl ©) = delete;
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INLINE ~MutexPosixImpl();
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MutexPosixImpl &operator = (const MutexPosixImpl ©) = delete;
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public:
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INLINE void lock();
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INLINE bool try_lock();
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INLINE void unlock();
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private:
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pthread_mutex_t _lock;
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friend class ConditionVarPosixImpl;
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};
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/**
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* Uses Posix threads to implement a reentrant mutex.
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*/
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class EXPCL_DTOOL_DTOOLBASE ReMutexPosixImpl {
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public:
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#ifdef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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constexpr ReMutexPosixImpl() noexcept;
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#else
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INLINE ReMutexPosixImpl();
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#endif
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ReMutexPosixImpl(const ReMutexPosixImpl ©) = delete;
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INLINE ~ReMutexPosixImpl();
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ReMutexPosixImpl &operator = (const ReMutexPosixImpl ©) = delete;
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public:
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INLINE void lock();
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INLINE bool try_lock();
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INLINE void unlock();
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private:
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pthread_mutex_t _lock;
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};
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#include "mutexPosixImpl.I"
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#endif // HAVE_POSIX_THREADS
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#endif
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