90      * message being received (i.e. to decide outside this type when exactly one

    90      * message being received (i.e. to decide outside this type when exactly one

    91      * should decrement the demand).

    91      * should decrement the demand).

    92      */

    92      */

    93     void acknowledgeReception(); // TODO: hide

    93     void acknowledgeReception(); // TODO: hide

    94 

    94 

    95     void closeOutput() throws IOException;

    99     void closeOutput() throws IOException;

    96 

   100 

    97     void closeInput() throws IOException;

   101     void closeInput() throws IOException;

    98 }

   102 }