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Old 05-19-2006, 04:51 AM   #1
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Message Queues

what will happen if there is no messages of the specified mtype in the msgrcv () call.....
Old 05-20-2006, 03:26 PM   #2
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The answer is here:
man msgrcv
If you explicitly specify "IPC_NOWAIT" in your flags argument, then it'll return "-1", and errno will contain "ENOMSG". Otherwise, msgrcv will block until a message does arrive.

This post would probably have been more appropriate for the "programming" forum...


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