lock.cpp

来自「网络socket,IO,线程池」· C++ 代码 · 共 65 行

/*
   2003 by zhy
*/
#include "stdafx.h"

#include "Lock.h"

#include <Windows.h>

#include <cassert>
using namespace std;

using namespace Synchronization;


bool CAPIMutex::IsOpen()
{
	assert(m_bHaveName);
	m_hmutex = OpenMutex( MUTEX_ALL_ACCESS, FALSE, m_mutexName.c_str());
	return m_hmutex != NULL;
}

void CAPIMutex::SetMutexName(const char* szMutexName)
{
	m_mutexName = szMutexName;
	m_bHaveName = true;
}

void CAPIMutex::acquire() throw(CMutexException)
{
	if(m_bHaveName)
		m_hmutex = CreateMutex(NULL,TRUE,m_mutexName.c_str());
	else
		m_hmutex = CreateMutex(NULL,TRUE,NULL);
	if(m_hmutex == NULL)
		return;
//		throw(GetLastError(),"CreateMutex failed"); 
}

void CAPIMutex::release() throw(CMutexException)
{
    if(ReleaseMutex(m_hmutex) == 0)
		;
//		throw(GetLastError(),"ReleaseMutex failed"); 
}

void CCriSection::acquire() throw(CMutexException)
{
	::EnterCriticalSection(&mcri_);
	m_iCount++;
}

void CCriSection::release() throw(CMutexException)
{
	m_iCount--;
	::LeaveCriticalSection(&mcri_);	
}


template <class Host>
typename ClassLevelLockable<Host>::Initializer 
ClassLevelLockable<Host>::initializer_;