临界区（锁）windows/linux通用

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//---------------------------------------------------------------------------

// lock.h

//---------------------------------------------------------------------------

#pragma once

#ifdef WIN32

#include <Windows.h>

#include <process.h>

class CLock

{

public:

CLock() { InitializeCriticalSection(&m_CriticalSection); }

~CLock() { DeleteCriticalSection(&m_CriticalSection); }

int Lock() { EnterCriticalSection(&m_CriticalSection); return true; }

int Unlock() { LeaveCriticalSection(&m_CriticalSection); return true; }

private:

CRITICAL_SECTION m_CriticalSection;

};

#else // POSIX - linux

#include <pthread.h>

class CLock

{

public:

CLock() { pthread_mutex_init(&m_Mutex, NULL); }

~CLock() { pthread_mutex_destroy(&m_Mutex); }

int Lock() { int nRetCode = pthread_mutex_lock(&m_Mutex); return (nRetCode == 0); }

int Unlock() { int nRetCode = pthread_mutex_unlock(&m_Mutex); return (nRetCode == 0); }

private:

pthread_mutex_t m_Mutex;

};

#endif

//---------------------------------------------------------------------------

// test.cpp

//---------------------------------------------------------------------------

int main(int argc, char** argv)

{

CLock lock;

lock.Lock();

lock.Unlock();

return 0;

}

转载自 http://zhidao.baidu.com/question/462443960.html