U++ forum: Welcome to the forum

Socket client out of buffer error and reusing sockets [message #40199]

Tue, 02 July 2013 11:03

koldo
Messages: 3358
Registered: August 2008

Senior Veteran

Hello all

I am a completely newbie in sockets.

When doing a client based in SocketClient demo and running it in a for() loop a WSAENOBUFS is get:

String Request(const String& r)
{
	TcpSocket s;
	if(!s.Connect(CommandLine().GetCount() ? CommandLine()[0] : "127.0.0.1", 3214)) {
		Cout() << "Unable to connect to server!\n";
		SetExitCode(1);
		return Null;
	}
	s.Put(r + '\n');
	return s.GetLine();
}

CONSOLE_APP_MAIN
{
	for (int i = 0; i < 50000; ++i)
		Cout() << Request("time") << '\n';
}

However if TcpSocket is reused, the program runs perfectly:

String Request(TcpSocket &s, const String& r)		// Added TcpSocket &s
{
	if(!s.Connect(CommandLine().GetCount() ? CommandLine()[0] : "127.0.0.1", 3214)) {
		Cout() << "Unable to connect to server!\n";
		SetExitCode(1);
		return Null;
	}
	s.Put(r + '\n');
	return s.GetLine();
}

CONSOLE_APP_MAIN
{
	TcpSocket s;						// Added TcpSocket s;
	for (int i = 0; i < 50000; ++i)
		Cout() << Request(s, "time") << '\n';		// Added s
}

Is the conclusion that TcpSocket has to be reused, or TcpSocket is not properly destructed, or maybe both?

Best regards
Iñaki

Report message to a moderator