int Client::Run() {
while (mvState != DONE && mvState != ERROR && mvRetries > 0) {
switch (mvState) {
case INIT:
mvState = init();
break;
case RECV_PACKETS:
mvState = recvPackets();
break;
default:
break;
}
}
if (mvState == ERROR) {
std::cout << "Error receiving file. Exiting." << std::endl;
return 1;
}
if (mvRetries <= 0) {
std::cout << "Maximum number of retries reached. Exiting."
<< std::endl;
return 1;
}
std::cout << "File transfer successful. Exiting." << std::endl;
return 0;
}
int RtpCtrlThread::run()
{
Debug( 2, "Starting control thread %lx on port %d", mRtpSource.getSsrc(), mRtpSource.getLocalCtrlPort() );
SockAddrInet localAddr, remoteAddr;
bool sendReports;
UdpInetSocket rtpCtrlServer;
if ( mRtpSource.getLocalHost() != "" )
{
localAddr.resolve( mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort(), "udp" );
if ( !rtpCtrlServer.bind( localAddr ) )
Fatal( "Failed to bind RTCP server" );
sendReports = false;
Debug( 3, "Bound to %s:%d", mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort() );
}
else
{
localAddr.resolve( mRtpSource.getLocalCtrlPort(), "udp" );
if ( !rtpCtrlServer.bind( localAddr ) )
Fatal( "Failed to bind RTCP server" );
Debug( 3, "Bound to %s:%d", mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort() );
remoteAddr.resolve( mRtpSource.getRemoteHost().c_str(), mRtpSource.getRemoteCtrlPort(), "udp" );
if ( !rtpCtrlServer.connect( remoteAddr ) )
Fatal( "Failed to connect RTCP server" );
Debug( 3, "Connected to %s:%d", mRtpSource.getRemoteHost().c_str(), mRtpSource.getRemoteCtrlPort() );
sendReports = true;
}
Select select( 10 );
select.addReader( &rtpCtrlServer );
unsigned char buffer[BUFSIZ];
while ( !mStop && select.wait() >= 0 )
{
if ( mStop )
break;
Select::CommsList readable = select.getReadable();
if ( readable.size() == 0 )
{
Error( "RTCP timed out" );
break;
}
for ( Select::CommsList::iterator iter = readable.begin(); iter != readable.end(); iter++ )
{
if ( UdpInetSocket *socket = dynamic_cast<UdpInetSocket *>(*iter) )
{
ssize_t nBytes = socket->recv( buffer, sizeof(buffer) );
Debug( 4, "Read %d bytes on sd %d", nBytes, socket->getReadDesc() );
if ( nBytes )
{
recvPackets( buffer, nBytes );
if ( sendReports )
{
unsigned char *bufferPtr = buffer;
bufferPtr += generateRr( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
bufferPtr += generateSdes( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
Debug( 4, "Sending %d bytes on sd %d", bufferPtr-buffer, rtpCtrlServer.getWriteDesc() );
if ( (nBytes = rtpCtrlServer.send( buffer, bufferPtr-buffer )) < 0 )
Error( "Unable to send: %s", strerror( errno ) );
//Debug( 4, "Sent %d bytes on sd %d", nBytes, rtpCtrlServer.getWriteDesc() );
}
}
else
{
mStop = true;
break;
}
}
else
{
Fatal( "Barfed" );
}
}
}
rtpCtrlServer.close();
mRtspThread.stop();
return( 0 );
}
int RtpCtrlThread::run() {
Debug( 2, "Starting control thread %x on port %d", mRtpSource.getSsrc(), mRtpSource.getLocalCtrlPort() );
SockAddrInet localAddr, remoteAddr;
bool sendReports;
UdpInetSocket rtpCtrlServer;
if ( mRtpSource.getLocalHost() != "" ) {
if ( !rtpCtrlServer.bind( mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort() ) )
Fatal( "Failed to bind RTCP server" );
sendReports = false;
Debug( 3, "Bound to %s:%d", mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort() );
} else {
if ( !rtpCtrlServer.bind( mRtspThread.getAddressFamily() == AF_INET6 ? "::" : "0.0.0.0", mRtpSource.getLocalCtrlPort() ) )
Fatal( "Failed to bind RTCP server" );
Debug( 3, "Bound to %s:%d", mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalCtrlPort() );
if ( !rtpCtrlServer.connect( mRtpSource.getRemoteHost().c_str(), mRtpSource.getRemoteCtrlPort() ) )
Fatal( "Failed to connect RTCP server" );
Debug( 3, "Connected to %s:%d", mRtpSource.getRemoteHost().c_str(), mRtpSource.getRemoteCtrlPort() );
sendReports = true;
}
// The only reason I can think of why we would have a timeout period is so that we can regularly send RR packets.
// Why 10 seconds? If anything I think this should be whatever timeout value was given in the DESCRIBE response
Select select( 10 );
select.addReader( &rtpCtrlServer );
unsigned char buffer[ZM_NETWORK_BUFSIZ];
time_t last_receive = time(NULL);
bool timeout = false; // used as a flag that we had a timeout, and then sent an RR to see if we wake back up. Real timeout will happen when this is true.
while ( !mStop && select.wait() >= 0 ) {
time_t now = time(NULL);
Select::CommsList readable = select.getReadable();
if ( readable.size() == 0 ) {
if ( ! timeout ) {
// With this code here, we will send an SDES and RR packet every 10 seconds
ssize_t nBytes;
unsigned char *bufferPtr = buffer;
bufferPtr += generateRr( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
bufferPtr += generateSdes( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
Debug( 3, "Preventing timeout by sending %zd bytes on sd %d. Time since last receive: %d",
bufferPtr-buffer, rtpCtrlServer.getWriteDesc(), ( now-last_receive) );
if ( (nBytes = rtpCtrlServer.send(buffer, bufferPtr-buffer)) < 0 )
Error("Unable to send: %s", strerror(errno));
timeout = true;
continue;
} else {
//Error( "RTCP timed out" );
Debug(1, "RTCP timed out. Time since last receive: %d", ( now-last_receive) );
continue;
//break;
}
} else {
timeout = false;
last_receive = time(NULL);
}
for ( Select::CommsList::iterator iter = readable.begin(); iter != readable.end(); ++iter ) {
if ( UdpInetSocket *socket = dynamic_cast<UdpInetSocket *>(*iter) ) {
ssize_t nBytes = socket->recv( buffer, sizeof(buffer) );
Debug( 4, "Read %zd bytes on sd %d", nBytes, socket->getReadDesc() );
if ( nBytes ) {
recvPackets( buffer, nBytes );
if ( sendReports ) {
unsigned char *bufferPtr = buffer;
bufferPtr += generateRr( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
bufferPtr += generateSdes( bufferPtr, sizeof(buffer)-(bufferPtr-buffer) );
Debug(3, "Sending %zd bytes on sd %d", bufferPtr-buffer, rtpCtrlServer.getWriteDesc());
if ( (nBytes = rtpCtrlServer.send( buffer, bufferPtr-buffer )) < 0 )
Error("Unable to send: %s", strerror(errno));
//Debug( 4, "Sent %d bytes on sd %d", nBytes, rtpCtrlServer.getWriteDesc() );
}
} else {
// Here is another case of not receiving some data causing us to terminate... why? Sometimes there are pauses in the interwebs.
mStop = true;
break;
}
} else {
Panic("Barfed");
} // end if socket
} // end foeach comms iterator
}
rtpCtrlServer.close();
mRtspThread.stop();
return 0;
}
