1.5.17: msgrcv doesn't report error with IPC_NOWAIT if ENOMSG

Mon Aug 1 14:39:00 GMT 2005

On Jul 21 10:23, Marek Prochazka wrote:
> Hi all,
>> msgrcv deosn't return -1 if IPC_NOWAIT flag is used and no message of
> desired type is in the queue.
>> However, in such a case errno is set to ENOMSG as it should be.

I can't reproduce this. My testcase returns -1 and ENOMSG just fine.
I also inspected the message queue related source code which is basically
the same running on FreeBSD. I don't see how it should be able to
return something other than -1 in this case. If you're still sure there's
a bug somewhere, please provide a reproducible, minimal testcase.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
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