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Added timeout to DTSC::Stream::waitForMeta() function

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This commit is contained in:
Thulinma 2014-01-13 11:22:50 +01:00
parent fccacc5c96
commit d11050db34
1 changed files with 14 additions and 3 deletions
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17
lib/dtsc.cpp
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@ -180,18 +180,21 @@ void DTSC::Stream::endStream(){
/// Blocks until either the stream has metadata available or the sourceSocket errors.
/// This function is intended to be run before any commands are sent and thus will not throw away anything important.
/// It will time out after 5 seconds, disconnecting the sourceSocket.
void DTSC::Stream::waitForMeta(Socket::Connection & sourceSocket){
while ( !metadata && sourceSocket.connected()){
//cancel the attempt after 5000 milliseconds
long long int start = Util::getMS();
while ( !metadata && sourceSocket.connected() && Util::getMS() - start < 5000){
//we have data? attempt to read header
if (sourceSocket.Received().size()){
//return value is ignore because we're not interested in data packets, just metadata.
//return value is ignored because we're not interested in data packets, just metadata.
parsePacket(sourceSocket.Received());
}
//still no header? check for more data
if ( !metadata){
if (sourceSocket.spool()){
//more received? attempt to read
//return value is ignore because we're not interested in data packets, just metadata.
//return value is ignored because we're not interested in data packets, just metadata.
parsePacket(sourceSocket.Received());
}else{
//nothing extra to receive? wait a bit and retry
@ -199,6 +202,14 @@ void DTSC::Stream::waitForMeta(Socket::Connection & sourceSocket){
}
}
}
//if the timeout has passed, close the socket
if (Util::getMS() - start >= 5000){
sourceSocket.close();
//and optionally print a debug message that this happened
#if DEBUG >= 4
fprintf(stderr, "Timed out while waiting for metadata\n");
#endif
}
}
/// Resets the stream by clearing the buffers and keyframes, making sure to call the deletionCallback first.