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/* NewNet - A networking framework in C++
Copyright (C) 2006-2007 Ingmar K. Steen (iksteen@gmail.com)
Copyright 2008 little blue poney <lbponey@users.sourceforge.net>
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 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
*/
#include "nnclientsocket.h"
#include "nnlog.h"
#include "platform.h"
#include <iostream>
void
NewNet::ClientSocket::disconnect(bool invoke)
{
if((socketState() == SocketUninitialized) || (descriptor() < 0))
{
NNLOG("newnet.net.warn", "Trying to disconnect an uninitialized client socket.");
if (invoke)
disconnectedEvent(this);
return;
}
closesocket(descriptor());
setSocketState(SocketDisconnected);
if (invoke)
disconnectedEvent(this);
}
void
NewNet::ClientSocket::process()
{
if(socketState() == SocketConnecting)
{
if(readyState() & StateSend)
{
sockopt_t so_error;
socklen_t so_len = sizeof(int);
getsockopt(descriptor(), SOL_SOCKET, SO_ERROR, &so_error, &so_len);
if(so_len != sizeof(int) || ! so_error)
{
NNLOG("newnet.net.debug", "Connected to host");
setSocketState(SocketConnected);
connectedEvent(this);
}
else
{
NNLOG("newnet.net.warn", "Cannot connect to host, error: %i.", so_error);
setSocketError(ErrorCannotConnect);
cannotConnectEvent(this);
return;
}
}
}
if(readyState() & StateException)
{
unsigned char buf;
ssize_t received = ::recv(descriptor(), (char *)&buf, 1, MSG_OOB);
if(received < 1)
{
NNLOG("newnet.net.warn", "Socket %u encountered error %i. Closing it.", descriptor(), errno);
closesocket(descriptor());
setSocketError(ErrorUnknown);
disconnectedEvent(this);
return;
}
m_ReceiveBuffer.append(&buf, 1);
dataReceivedEvent(this);
}
if(readyState() & StateReceive)
{
unsigned char buf[1024];
ssize_t received = ::recv(descriptor(), (char *)buf, 1024, 0);
if(received == -1)
{
if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
NNLOG("newnet.net.debug", "EAGAIN while receiving data on socket %i.", descriptor());
setReadyState(readyState() & ~StateReceive);
}
else
{
NNLOG("newnet.net.warn", "Socket %u encountered error %i. Closing it.", descriptor(), errno);
closesocket(descriptor());
setSocketError(ErrorUnknown);
disconnectedEvent(this);
return;
}
}
else if(received == 0)
{
NNLOG("newnet.net.debug", "Socket %u was disconnected.", descriptor());
closesocket(descriptor());
setSocketState(SocketDisconnected);
disconnectedEvent(this);
return;
}
else
{
NNLOG("newnet.net.debug", "Received %i bytes on socket %u.", received, descriptor());
if(downRateLimiter())
downRateLimiter()->transferred(received);
m_ReceiveBuffer.append(buf, received);
dataReceivedEvent(this);
}
}
if((readyState() & StateSend) && dataWaiting())
{
size_t n = std::min((size_t)1024, m_SendBuffer.count());
ssize_t sent = ::send(descriptor(), (const char *)m_SendBuffer.data(), n, 0);
if(sent < 0)
{
if(errno == EAGAIN)
setReadyState(readyState() & ~StateSend);
else
{
NNLOG("newnet.net.warn", "Socket %u encountered error %i. Closing it.", descriptor(), errno);
closesocket(descriptor());
setSocketError(ErrorUnknown);
disconnectedEvent(this);
return;
}
}
else {
NNLOG("newnet.net.debug", "Sent %i bytes to socket %u.", sent, descriptor());
if(upRateLimiter())
upRateLimiter()->transferred(sent);
m_SendBuffer.seek(sent);
setDataWaiting(m_SendBuffer.count() != 0);
dataSentEvent(this);
}
}
}
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