Set timeout on Socket before it tries to connect

Question

The Socket class documentation is here.

In my code atm, I use a constructor that's like this:

Socket m_Socket = new Socket(m_Address, m_Port);

m_Address is an InetAddress and m_Port is an int.

When this line runs, and the socket cannot be made, the app waits 3 seconds or so before throwing an IOException.

I can see there is no constructor that takes both InetAddress, int, and another int for timeout. I need to wait 250ms and not ~3 seconds as it is now. This means that I need to set the timeout on the socket, but I cannot find any method to do this. I know we have the method setSoTimeout(timeout), but it needs to be called on an instance of the Socket class. I can instantiate a new Socket by doing this: m_Socket = new Socket();, but then I'd need to set the InetAddress and port, and the Socket class does not seem to have any methods for doing this (except for the constructor).

How do I set the timeout before it actually tries to set the socket?

http://stackoverflow.com/questions/4969760/set-timeout-for-socket — infiniteRefactor, Mar 20 '13 at 09:09
The default connect timeout is over a minute, not 3 seconds, and 250ms is an absurdly short connect timeout value. — user207421, Mar 20 '13 at 09:09

score 2 · Accepted Answer · answered Mar 20 '13 at 09:07

2

You may create an unconnected Socket with the default constructor and then call connect() with timeout.

Socket m_Socket = new Socket();
m_Socket.connect(addr,1000);

answered Mar 20 '13 at 09:07

PeterMmm

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Thanks a lot! Had to convert my InetAddress to a SocketAddress firstly. – gosr Mar 20 '13 at 09:14

score 2 · Answer 2 · answered Mar 20 '13 at 09:12

2

try

    Socket sock  = new Socket();
    sock.connect(new InetSocketAddress(m_Address, m_Port), 250);

answered Mar 20 '13 at 09:12

Evgeniy Dorofeev

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Set timeout on Socket before it tries to connect

2 Answers2