Hello!
> Q: If that can't be done, how can I make send/write write the entire
> message or not at all (iow, do NOT splitt the message) in NONBLOCKing
> mode?
It is impossible for write().
In some unices option SO_SNDLOWAT is implemented, which provides
some protection of partial writes in nonblocking mode setting
threshold, when user prefers to get EAGAIN instead of partial write().
That's all.
It is not implemented in linux and is not a required part of any standard.
Alexey
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