Panda3D

lightReMutexDirect.h

00001 // Filename: lightReMutexDirect.h
00002 // Created by:  drose (08Oct08)
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 LIGHTREMUTEXDIRECT_H
00016 #define LIGHTREMUTEXDIRECT_H
00017 
00018 #include "pandabase.h"
00019 #include "mutexImpl.h"
00020 #include "reMutexDirect.h"
00021 
00022 class Thread;
00023 
00024 #ifndef DEBUG_THREADS
00025 
00026 ////////////////////////////////////////////////////////////////////
00027 //       Class : LightReMutexDirect
00028 // Description : This class implements a standard lightReMutex by making
00029 //               direct calls to the underlying implementation layer.
00030 //               It doesn't perform any debugging operations.
00031 ////////////////////////////////////////////////////////////////////
00032 class EXPCL_PANDA_PIPELINE LightReMutexDirect {
00033 protected:
00034   INLINE LightReMutexDirect();
00035   INLINE ~LightReMutexDirect();
00036 private:
00037   INLINE LightReMutexDirect(const LightReMutexDirect &copy);
00038   INLINE void operator = (const LightReMutexDirect &copy);
00039 
00040 PUBLISHED:
00041   BLOCKING INLINE void acquire() const;
00042   BLOCKING INLINE void acquire(Thread *current_thread) const;
00043   INLINE void elevate_lock() const;
00044   INLINE void release() const;
00045 
00046   INLINE bool debug_is_locked() const;
00047 
00048   INLINE void set_name(const string &name);
00049   INLINE void clear_name();
00050   INLINE bool has_name() const;
00051   INLINE string get_name() const;
00052 
00053   void output(ostream &out) const;
00054 
00055 private:
00056 #if defined(HAVE_REMUTEXIMPL) && !defined(DO_PSTATS)
00057   ReMutexImpl _impl;
00058 
00059 #else
00060   // If we don't have a reentrant mutex, use the one we hand-rolled in
00061   // ReMutexDirect.
00062   ReMutexDirect _impl;
00063 #endif  // HAVE_REMUTEXIMPL
00064 };
00065 
00066 INLINE ostream &
00067 operator << (ostream &out, const LightReMutexDirect &m) {
00068   m.output(out);
00069   return out;
00070 }
00071 
00072 #include "lightReMutexDirect.I"
00073 
00074 #endif  // !DEBUG_THREADS
00075 
00076 #endif
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