Panda3D

mutexTrueImpl.h

00001 // Filename: mutexTrueImpl.h
00002 // Created by:  drose (19Jun07)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef MUTEXTRUEIMPL_H
00016 #define MUTEXTRUEIMPL_H
00017 
00018 #include "pandabase.h"
00019 #include "mutexImpl.h"
00020 
00021 // The MutexTrueImpl typedef is given here in the pipeline directory,
00022 // and is used to implement Mutex and ReMutex (and, therefore, any
00023 // downstream Mutex implementation).
00024 
00025 // This is slightly different from the MutexImpl typedef, which is
00026 // given up in dtoolbase, and is used standalone anywhere very
00027 // low-level code needs to protect itself from mutual exclusion.
00028 
00029 // The only difference between the two is in the case of
00030 // THREAD_SIMPLE_IMPL.  In this case, MutexImpl maps to
00031 // MutexDummyImpl, while MutexTrueImpl maps to MutexSimpleImpl.  This
00032 // distinction is necessary because we cannot define MutexSimpleImpl
00033 // until we have defined the whole ThreadSimpleManager and related
00034 // infrastructure.
00035 
00036 #ifdef THREAD_SIMPLE_IMPL
00037 
00038 #include "mutexSimpleImpl.h"
00039 typedef MutexSimpleImpl MutexTrueImpl;
00040 #undef HAVE_REMUTEXTRUEIMPL
00041 
00042 #else  // THREAD_SIMPLE_IMPL
00043 
00044 typedef MutexImpl MutexTrueImpl;
00045 #if HAVE_REMUTEXIMPL
00046 typedef ReMutexImpl ReMutexTrueImpl;
00047 #define HAVE_REMUTEXTRUEIMPL 1
00048 #else
00049 #undef HAVE_REMUTEXTRUEIMPL
00050 #endif // HAVE_REMUTEXIMPL
00051 
00052 #endif  // THREAD_SIMPLE_IMPL
00053 
00054 #endif
00055 
00056 
00057 
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