fdconnection.cpp

linux下的异步通信库 支持TCP和UDP异步通信 编译和使用前先读readme.

/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Library General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

// FdConnection.cpp - Copyright Simon Brenner 2002,2005

#include <fcntl.h>

#include "FdConnection.hpp"
#include "async.h"

FdConnection::~FdConnection()
{
	if (LastSocketObject(fd))
		RemoveSocket(fd, this);
}

bool FdConnection::Connect()
{
	return true;
}

void FdConnection::Disconnect()
{}

bool FdConnection::Write(void *buf, uint len)
{
	return !(write(fd, buf, len)<0);
}

bool FdConnection::Read(void *buf, uint len, uint *bytesRead)
{
	int ret=read(fd, buf, len);
	if (bytesRead != NULL)
		*bytesRead=ret;
	return !(ret < 0);
}

bool FdConnection::setNonBlocking(bool non_block)
{
	int oldflags=fcntl(fd, F_GETFL, 0);
	if (oldflags == -1)
		return true;
	if (non_block)
		oldflags |= O_NONBLOCK;
	else
		oldflags &= ~O_NONBLOCK;
	return fcntl(fd, F_SETFL, oldflags);
}

void FdConnection::OnRead()
{}

void FdConnection::OnWrite()
{}

void FdConnection::OnClose()
{}