#include "StdAfx.h"
#include "CriticalLock.h"

CCriticalLock::CCriticalLock(void)
{
	m_bInitSucc = true;

	try
	{
		//带循环等待的初始化，推荐循环4000次
		if (!InitializeCriticalSectionAndSpinCount(&m_cs, 4000))
		{
			m_bInitSucc = false;
		}
	}
	catch (...)
	{
		m_bInitSucc = false;
	}
}

CCriticalLock::~CCriticalLock(void)
{
	try
	{
		DeleteCriticalSection(&m_cs);
	}
	catch (...)
	{

	}
}

/******************************************************************************
加锁
******************************************************************************/
bool CCriticalLock::Lock(void)
{
	if (!m_bInitSucc)
	{
		return false;
	}

	try
	{
		EnterCriticalSection(&m_cs);
	}
	catch (...)
	{
		return false;
	}

	return true;
}

/******************************************************************************
解锁
******************************************************************************/
bool CCriticalLock::Unlock(void)
{
	if (!m_bInitSucc)
	{
		return false;
	}

	try
	{
		LeaveCriticalSection(&m_cs);
	}
	catch (...)
	{
		return false;
	}

	return true;
}