[PATCH v3 3/4] server: Don't block when writing to named pipes in PIPE_NOWAIT mode.

[Jacek Caban]

Hi Brendan,

On 10/3/19 9:57 PM, Brendan Shanks wrote:
> +            else if (message->async && (pipe_end->flags & NAMED_PIPE_NONBLOCKING_MODE) &&
> +                     !async_waiting( &reader->read_q ))


async_waiting() may not do the right thing here. Note that it checks 
only head of the queue. We may have the head complete (for example 
cancelled, but the result is still being passed to the client). You may 
check find_pending_async() result instead.


Jacek