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#include "NetworkUDP.hh"
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#include <ClanLib/core.h>
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#include <cassert>
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NetworkUDP::NetworkUDP (void) :
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socket(CL_Socket::udp, CL_Socket::ipv4) {
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// do not bind
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// connect signal
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slots.connect(socket.sig_read_triggered(), this, &NetworkUDP::on_recv);
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}
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NetworkUDP::NetworkUDP (const NetworkAddress &bind_addr) :
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socket(CL_Socket::udp, CL_Socket::ipv4) {
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// bind socket
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socket.bind(bind_addr);
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// connect signal
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slots.connect(socket.sig_read_triggered(), this, &NetworkUDP::on_recv);
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}
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void NetworkUDP::on_recv (void) {
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int ret;
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NetworkPacket pkt;
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NetworkAddress src;
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// attempt to recv
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try {
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ret = socket.recv(pkt.get_buf(), pkt.get_buf_size(), src);
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} catch (CL_Error &e) {
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if (errno == EAGAIN)
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return;
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else
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throw;
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}
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// set packet data size
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pkt.set_data_size(ret);
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// handle packet
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_sig_packet(pkt, src);
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}
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bool NetworkUDP::sendto (const NetworkPacket &packet, const NetworkAddress &dst) {
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int ret;
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// XXX: shouldn't get trimmed
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try {
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ret = socket.send(packet.get_buf(), packet.get_data_size(), dst);
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} catch (CL_Error &e) {
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// XXX: catch some errors, but not others?
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return false;
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}
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assert(ret > 0);
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// UDP shouldn't trim packets
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assert((unsigned int) ret == packet.get_data_size());
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// good
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return true;
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}
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