lsock.cpp

一个串口通信的程序

// LSock.cpp: implementation of the CLSock class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "datasvr.h"
#include "LSock.h"
#include "rwsock.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CLSock::CLSock()
{

}

CLSock::~CLSock()
{

}

CRWSock sockbuf[100];
bool sockbufstate[100];
void initsockbuf()
{
	for(int i=0;i<100;i++)
		sockbufstate[i]=false;
}
CRWSock * getsockbuf()
{
	for(int i=0;i<100;i++)
		if(sockbufstate[i]==false)
			break;
	if (i<100)
	{
		sockbufstate[i]=true;
		return &sockbuf[i];
	}
	else return NULL;
}
void freesockbuf(CRWSock * psock)
{
	int pos=(psock-&sockbuf[0])/sizeof(CRWSock);
	sockbufstate[pos]=false;
	sockbuf[pos].Close();
}
void CLSock::OnAccept(int nErrorCode)
{
	CRWSock *rwSock;
	rwSock=getsockbuf();
	if(Accept(*rwSock))
	{
	
		m_RWSocks.AddTail(rwSock);
	}
	else
	{
		freesockbuf(rwSock);
//		delete rwSock;
	}
	CSocket::OnAccept(nErrorCode);
/*	CRWSock *rwSock;
	rwSock=new CRWSock;
	if(Accept(*rwSock))
	{
	
		m_RWSocks.AddTail(rwSock);
	}
	else
	{
		delete rwSock;
//		AfxMessageBox("Accept() fail");
	}
	CSocket::OnAccept(nErrorCode);
*/
}




void CLSock::CloseSocket(CRWSock *pSocket)
{
	pSocket->Close();
	POSITION pos;
	pos=m_RWSocks.Find(pSocket);
	m_RWSocks.RemoveAt(pos);
	if(pSocket!=NULL)
	{
		freesockbuf(pSocket);
//		delete pSocket;
	}
/*
	pSocket->Close();
	POSITION pos;
	pos=m_RWSocks.Find(pSocket);
	m_RWSocks.RemoveAt(pos);
	if(pSocket!=NULL)
	{
		delete pSocket;
	}
*/

}

void CLSock::CloseAllSockets()
{
	POSITION pos;
	CRWSock *rwSock;
	pos=m_RWSocks.GetHeadPosition();
	while(pos!=NULL)
	{
//		_DATA dat;
		rwSock=(CRWSock*)m_RWSocks.GetNext(pos);
//		rwSock->Send(&dat,sizeof(dat));
		CloseSocket(rwSock);
	}

}