Return the current message to write or null if nothing was flushed before and so
is ready to be writ
Will remove the current message, mark its ChannelPromise as failure using the
given Throwableand ret
Returns the number of flushed messages in this ChannelOutboundBuffer.
Notify the ChannelPromise of the current message about writing progress.
Sets a user-defined writability flag at the specified index.
Returns true if there are flushed messages in this ChannelOutboundBuffer or
Returns the number of ByteBuffer that can be written out of the ByteBuffer array
that was obtained v
Returns the number of bytes that can be written out of the ByteBuffer array that
was obtained via #n
Removes the fully written entries and update the reader index of the partially
written entry. This o
Add given message to this ChannelOutboundBuffer. The given ChannelPromise will
be notified once the