1 /***************************************************************************
2 * Copyright (C) 2006 by Gerd v. Egidy *
5 * This library is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU Lesser General Public License version *
7 * 2.1 as published by the Free Software Foundation. *
9 * This library is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU Lesser General Public License for more details. *
14 * You should have received a copy of the GNU Lesser General Public *
15 * License along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
23 #include "connection.hxx"
28 connection::packet_size_indicator connection::bytes_available()
30 // max packet size is unsigned int
32 // no size information -> no packet
33 if (buffer.size() < sizeof(unsigned int))
36 packet_size_indicator psize=*((packet_size_indicator*)(buffer.data()));
38 // enough data for one packet in buffer?
39 if (buffer.size() < sizeof(unsigned int)+psize)
42 // ok, full packet there
46 bool connection::get_packet(std::string& data)
48 packet_size_indicator psize;
50 if ((psize=bytes_available()))
52 data.assign(buffer,sizeof(unsigned int),psize);
53 buffer.erase(0,sizeof(unsigned int)+psize);
60 void connection::write(const std::string& data)
62 // prepend packet size to data
63 packet_size_indicator psize=data.size();
64 std::string send_data(data);
65 send_data.insert(0,(char*)&psize,sizeof(packet_size_indicator));
67 real_write(send_data);