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Sockets,Streams and Threads [message #514856]

Tue, 16 February 2010 21:16

Jordan Borisov

Messages: 9
Registered: July 2009

Junior Member

How can I synchronized Object streams in more than one threads?

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Re: Sockets,Streams and Threads [message #514886 is a reply to message #514856]

Wed, 17 February 2010 00:39

David Wegener

Messages: 1445
Registered: July 2009

Senior Member

Jordan Borisov wrote:
> How can I synchronized Object streams in more than one threads?
That is a very general question. Could you provide more details about
what you are trying to do and how it relates to Eclipse?

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Re: Sockets,Streams and Threads [message #515478 is a reply to message #514886]

Thu, 18 February 2010 21:34

Jordan Borisov

Messages: 9
Registered: July 2009

Junior Member

In my program I use sockets. The client communicate with the server with messages and also send object to another socket bind to the server. Every client run in separate thread and waiting in the run method for a message. Depending on the message type the server send different result. This is the reason why I want to synchronized the stream, because the ObjectInputStream constructor throws exception "Invalid header".
Anyway I found a solution. Now the server and the client communicate only with serializable object. The program run exactly as it should. Unfortunately I haven't understand how to synchronized sockets stream in separate threads.

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Re: Sockets,Streams and Threads [message #515497 is a reply to message #515478]

Thu, 18 February 2010 21:06

David Wegener

Messages: 1445
Registered: July 2009

Senior Member

Jordan Borisov wrote:
> In my program I use sockets. The client communicate with the server with
> messages and also send object to another socket bind to the server.
> Every client run in separate thread and waiting in the run method for a
> message. Depending on the message type the server send different result.
> This is the reason why I want to synchronized the stream, because the
> ObjectInputStream constructor throws exception "Invalid header".
> Anyway I found a solution. Now the server and the client communicate
> only with serializable object. The program run exactly as it should.
> Unfortunately I haven't understand how to synchronized sockets stream in
> separate threads.

This sounds like a general Java issue, not an Eclipse specific issue.
You will probably find more help on a Java specific newsgroup or from a
book about concurrent Java programming. I would suggest the "Concurrent
Programming in Java" book by Doug Lea.

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