57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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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 lightMutex.h
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* @author drose
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* @date 2008-10-08
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*/
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#ifndef LIGHTMUTEX_H
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#define LIGHTMUTEX_H
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#include "pandabase.h"
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#include "mutexDebug.h"
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#include "lightMutexDirect.h"
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/**
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* This is a standard, non-reentrant mutex, similar to the Mutex class. It is
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* different from Mutex in the case of SIMPLE_THREADS: in this case, the
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* LightMutex class compiles to nothing; it performs no locking whatsoever.
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* It is therefore useful only to protect very small sections of code, during
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* which you are confident there will be no thread yields.
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*
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* In the normal, system-threaded implementation, this class is exactly the
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* same as Mutex.
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*
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* ConditionVars cannot be used with LightMutex; they work only with Mutex.
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*
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* This class inherits its implementation either from MutexDebug or
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* LightMutexDirect, depending on the definition of DEBUG_THREADS.
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*/
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#ifdef DEBUG_THREADS
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class EXPCL_PANDA_PIPELINE LightMutex : public MutexDebug
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#else
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class EXPCL_PANDA_PIPELINE LightMutex : public LightMutexDirect
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#endif // DEBUG_THREADS
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{
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PUBLISHED:
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INLINE LightMutex();
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public:
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INLINE explicit LightMutex(const char *name);
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PUBLISHED:
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INLINE explicit LightMutex(const std::string &name);
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LightMutex(const LightMutex ©) = delete;
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~LightMutex() = default;
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LightMutex &operator = (const LightMutex ©) = delete;
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};
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#include "lightMutex.I"
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#endif
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