76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
// Filename: lightMutexDirect.h
|
|
// Created by: drose (08Oct08)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef LIGHTMUTEXDIRECT_H
|
|
#define LIGHTMUTEXDIRECT_H
|
|
|
|
#include "pandabase.h"
|
|
#include "mutexImpl.h"
|
|
#include "pnotify.h"
|
|
|
|
class Thread;
|
|
|
|
#ifndef DEBUG_THREADS
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : LightMutexDirect
|
|
// Description : This class implements a lightweight Mutex by making
|
|
// direct calls to the underlying implementation layer.
|
|
// It doesn't perform any debugging operations.
|
|
////////////////////////////////////////////////////////////////////
|
|
class EXPCL_PANDA_PIPELINE LightMutexDirect {
|
|
protected:
|
|
INLINE LightMutexDirect();
|
|
INLINE ~LightMutexDirect();
|
|
private:
|
|
INLINE LightMutexDirect(const LightMutexDirect ©);
|
|
INLINE void operator = (const LightMutexDirect ©);
|
|
|
|
PUBLISHED:
|
|
BLOCKING INLINE void acquire() const;
|
|
INLINE void release() const;
|
|
INLINE bool debug_is_locked() const;
|
|
|
|
INLINE void set_name(const string &name);
|
|
INLINE void clear_name();
|
|
INLINE bool has_name() const;
|
|
INLINE string get_name() const;
|
|
|
|
void output(ostream &out) const;
|
|
|
|
private:
|
|
#ifdef DO_PSTATS
|
|
// When PStats is compiled in, we use the full implementation of
|
|
// LightMutex, even in the SIMPLE_THREADS case. We have to do this
|
|
// since any PStatTimer call may trigger a context switch, and any
|
|
// low-level context switch requires all containing mutexes to be
|
|
// true mutexes.
|
|
MutexTrueImpl _impl;
|
|
#else
|
|
MutexImpl _impl;
|
|
#endif // DO_PSTATS
|
|
};
|
|
|
|
INLINE ostream &
|
|
operator << (ostream &out, const LightMutexDirect &m) {
|
|
m.output(out);
|
|
return out;
|
|
}
|
|
|
|
#include "lightMutexDirect.I"
|
|
|
|
#endif // !DEBUG_THREADS
|
|
|
|
#endif
|