Messages in this thread |  | | From | nejhdeh <> | Subject | Re: Basic question | Date | Fri, 23 Aug 2002 11:44:35 +1000 |
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Hi, I have a question about fork() and messages..
For simplicity, I have a parent process that forks() two child processes (say pid1 & pid2).
How do I set priority levels of child1 vs child2. I want child1 to have a much higher priority level, since its going to read inputs from a serial device in the outside world?
Using basic signal calls say SIGUSR1, how can I communicate (without semaphores) between child1 and child2 through the parent? For instance if the child1 gets blocked forever trying to read the serial device then I want to notify the parent to kill child2??
Your time in this matter is greatly appreciated.
> Regards > > Nejhdeh Ghevondian - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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