fast_mutex.h File Reference

A fast mutex implementation for POSIX and Win32. More...

#include "_nvwa.h"
#include "c++11.h"
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

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Classes
class	nvwa::fast_mutex
	Class for non-reentrant fast mutexes. More...
class	nvwa::fast_mutex_autolock
	An acquistion-on-initialization lock class based on fast_mutex. More...
Namespaces
namespace	nvwa
Defines
#define	NVWA_USE_CXX11_MUTEX   0
#define	_FAST_MUTEX_CHECK_INITIALIZATION   1
	Macro to control whether to check for initialization status for each lock/unlock operation.
#define	_FAST_MUTEX_ASSERT(_Expr, _Msg)
	Macro for fast_mutex assertions.
#define	__VOLATILE   volatile
	Macro alias to `volatile' semantics.

---

Detailed Description

A fast mutex implementation for POSIX and Win32.

Date:

2013-08-02

---

Define Documentation

#define __VOLATILE   volatile

Macro alias to `volatile' semantics.

Here it is truly volatile since it is in a multi-threaded (POSIX threads) environment.

#define _FAST_MUTEX_ASSERT	(	_Expr,
		_Msg		)

Value:

if (!(_Expr)) { \
            fprintf(stderr, "fast_mutex::%s\n", _Msg); \
            abort(); \
        }

Macro for fast_mutex assertions.

Real version (for debug mode).

#define _FAST_MUTEX_CHECK_INITIALIZATION   1

Macro to control whether to check for initialization status for each lock/unlock operation.

Defining it to a non-zero value will enable the check, so that the construction/destruction of a static object using a static fast_mutex not yet constructed or already destroyed will work (with lock/unlock operations ignored). Defining it to zero will disable to check.

#define NVWA_USE_CXX11_MUTEX   0