Titanium Community Questions & Answer Archive

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problem using TCP Socket

I am having problems using tcp socket for communicating to a remote machine. This is the code that I am using:

var socket2 = Titanium.Network.createTCPSocket({

I get the following error:
Error: Host is null. in - [TiNetworkTCPSocketProxy connect:] (TiNetworkTCPSocketProxy.mm 492) on device. Simulator crashes, "Application has exited from Simulator" just after the app is launched.
I know error says the host is null, but host is reachable from terminal or from other desktop app. I also tried using the ip instead of the host name.
Could anybody point me in the right direction here? I'm not sure what I'm doing wrong.

Thank you!!!

— asked November 30th 2010 by Andreea x
  • iphone
  • mobile
  • socket
  • write
  • Hi Andreea

    I expect, you found a solution within this 3 monts.
    But I want to share my experiances for all others who are searching for this.
    You just have to wait after the connect(), until isValid is true.


    Call the close() in the onRead Event.

    I know, the busy wait is ugly. But is takes between 3 an 6 loops.
    This schould be ok. Hope, it helps.

    Btw: The app crashes, if you try to close befor the connection is established.


    — commented February 17th 2011 by Tobias Kamber
  • thats bad, dont do that! - use an interval that checks every 10ms for a change - a while is super evil.

    — commented March 31st 2011 by Tobias O.

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