@Override public void writeFromUserCode(final AbstractNioChannel channel) { /* * Note that we are not checking if the channel is connected. Connected * has a different meaning in UDP and means that the channels socket is * configured to only send and receive from a given remote peer. */ if (!channel.isBound()) { cleanUpWriteBuffer(channel); return; } if (scheduleWriteIfNecessary(channel)) { return; } // From here, we are sure Thread.currentThread() == workerThread. if (channel.writeSuspended) { return; } if (channel.inWriteNowLoop) { return; } write0(channel); }