Exception cause = null;
boolean fireExceptionCaught = false;
// Clean up the stale messages in the write buffer.
synchronized (channel.writeLock) {
MessageEvent evt = channel.currentWriteEvent;
if (evt != null) {
// Create the exception only once to avoid the excessive overhead
// caused by fillStackTrace.
if (channel.isOpen()) {
cause = new NotYetConnectedException();
} else {
cause = new ClosedChannelException();
}
ChannelFuture future = evt.getFuture();
if (channel.currentWriteBuffer != null) {
channel.currentWriteBuffer.release();
channel.currentWriteBuffer = null;
}
channel.currentWriteEvent = null;
// Mark the event object for garbage collection.
//noinspection UnusedAssignment
evt = null;
future.setFailure(cause);
fireExceptionCaught = true;
}
Queue<MessageEvent> writeBuffer = channel.writeBufferQueue;
for (;;) {
evt = writeBuffer.poll();
if (evt == null) {
break;
}
// Create the exception only once to avoid the excessive overhead
// caused by fillStackTrace.
if (cause == null) {
if (channel.isOpen()) {
cause = new NotYetConnectedException();
} else {
cause = new ClosedChannelException();
}
fireExceptionCaught = true;
}
evt.getFuture().setFailure(cause);
}
}
if (fireExceptionCaught) {
if (isIoThread(channel)) {