Merge "MIDI: Use server-side socket in blocking mode for virtual devices"

                ParcelFileDescriptor[] pair = ParcelFileDescriptor.createSocketPair(

                                                    OsConstants.SOCK_SEQPACKET);

                MidiInputPort inputPort = new MidiInputPort(pair[0], portNumber);

                // Configure the server-side socket in non-blocking mode to avoid stalling

                // the entire MIDI framework if client app code gets stuck inside 'onSend'

                // handler.

                // Undo the default blocking-mode of the server-side socket for

                // physical devices to avoid stalling the Java device handler if

                // client app code gets stuck inside 'onSend' handler.

                if (mDeviceInfo.getType() != MidiDeviceInfo.TYPE_VIRTUAL) {

                    IoUtils.setBlocking(pair[0].getFileDescriptor(), false);

                }

                MidiDispatcher dispatcher = mOutputPortDispatchers[portNumber];

                synchronized (dispatcher) {

                    dispatcher.getSender().connect(inputPort);