56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
// Filename: mutexTrueImpl.h
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// Created by: drose (19Jun07)
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//
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////////////////////////////////////////////////////////////////////
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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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////////////////////////////////////////////////////////////////////
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#ifndef MUTEXTRUEIMPL_H
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#define MUTEXTRUEIMPL_H
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#include "pandabase.h"
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#include "mutexImpl.h"
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// The MutexTrueImpl typedef is given here in the pipeline directory,
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// and is used to implement Mutex and ReMutex (and, therefore, any
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// downstream Mutex implementation).
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// This is slightly different from the MutexImpl typedef, which is
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// given up in dtoolbase, and is used standalone anywhere very
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// low-level code needs to protect itself from mutual exclusion.
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// The only difference between the two is in the case of
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// THREAD_SIMPLE_IMPL. In this case, MutexImpl maps to
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// MutexDummyImpl, while MutexTrueImpl maps to MutexSimpleImpl. This
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// distinction is necessary because we cannot define MutexSimpleImpl
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// until we have defined the whole ThreadSimpleManager and related
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// infrastructure.
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#if defined(THREAD_SIMPLE_IMPL) && !defined(SIMPLE_THREADS_NO_MUTEX)
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#include "mutexSimpleImpl.h"
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#include "reMutexSimpleImpl.h"
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typedef MutexSimpleImpl MutexTrueImpl;
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typedef ReMutexSimpleImpl ReMutexTrueImpl;
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#else
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typedef MutexImpl MutexTrueImpl;
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#if HAVE_REMUTEXIMPL
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typedef ReMutexImpl ReMutexTrueImpl;
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#endif // HAVE_REMUTEXIMPL
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#endif
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#endif
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