java - Closing BufferedWriter/Reader affects other instances bound to the same socket? -


i have 'n' server threads, , each 1 listen 1 client.

when server thread receives message client, needs notify other 'n-1' clients, , that's reason why keep shared object (containing array of 'n' sockets, 1 each client) between server threads.

moreover, in main server thread holds serversocket, every time accept new connection client open bufferedwriter/reader give first answer him using new socket returned serversocket.accept().

in case of "ok" answer open new thread passing new socket it, in order listen new client's following requests.

the problem cannot close bufferedreader , bufferedwriter in main server thread, because close underlying stream, causing problems server thread listening socket/stream.

and question: if open bufferedreader (bound same socket) in new thread, , close it, other bufferedreaders(writers) ( ones opened in main server thread, couldn't close before ) opened on same socket closed? exception thrown on them?

it possible share opened bufferedreader / writer instead of socket, avoid instantiating every time new object, question related happen if things in way described above.

please tell me if hadn't been clear, english not good.

  1. closing reader or writer or stream wrapped around stream closes wrapped stream.
  2. closing either input stream or output stream of socket closes other stream , socket.

  3. closing socket closes both streams.

    in other words closing of closes of it.

  4. as noted in comments, multiple buffered streams/readers/writers wrapped around single stream cannot work.

  5. multiple threads reading from/writing same socket unlikely work correctly either, unless take great care synchronization , buffering.

  6. you should not i/o accepted socket in accept loop. otherwise can block, affects further clients.

you need rethink design.


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