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/*
* Connection.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "Connection.h"
#include "Packet.h"
namespace Mad {
namespace Net {
bool Connection::send(const Packet &packet) {
if(!isConnected())
return false;
const unsigned char *data = reinterpret_cast<const unsigned char*>(packet.getRawData());
unsigned long dataLength = packet.getRawDataLength();
while(dataLength > 0) {
ssize_t ret = gnutls_record_send(getSession(), data, dataLength);
if(ret < 0) {
if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN)
continue;
return false;
}
data += ret;
dataLength -= ret;
}
return true;
}
bool Connection::recieve() {
unsigned char *headerData = reinterpret_cast<unsigned char*>(&header);
ssize_t ret;
if(!isConnected())
return false;
while(true) {
if(!gnutls_record_check_pending(getSession()))
return false;
if(read < sizeof(Packet::Data)) {
ret = gnutls_record_recv(getSession(), headerData+read, sizeof(Packet::Data)-read);
if(ret < 0) {
if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN)
continue;
return false;
}
read += ret;
if(read < sizeof(Packet::Data))
continue;
if(!header.length) {
Packet packet(header.type, header.requestId);
return true;
}
data = new unsigned char[header.length];
}
ret = gnutls_record_recv(getSession(), data+read-sizeof(Packet::Data), header.length+sizeof(Packet::Data)-read);
if(ret < 0) {
if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN)
continue;
return false;
}
read += ret;
if(read < header.length+sizeof(Packet::Data))
continue;
Packet packet(header.type, header.requestId, data, header.length);
delete [] data;
data = 0;
return true;
}
}
}
}
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