Signal Handlers

This is a discussion on Signal Handlers within the Linux Programming forums, part of the Platform Specific Boards category; Hi I have a program with two forks and a parent process runinng. When ^Z is inputed, if the parent ...

  1. #1
    Microsoft. Who? MethodMan's Avatar
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    Signal Handlers

    Hi

    I have a program with two forks and a parent process runinng. When ^Z is inputed, if the parent catches it, it kills the children, if a child catches it, it tells the parent and the parent kills the other child.

    I am having problems figuring out how to accomplish this.

    Should each child share its own handler, or should the parent and both children have a common handler?

    Thanks
    -MethodMan-

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  2. #2
    Registered User Codeplug's Avatar
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    What you want is kill(). And use SIGUSR1 for your inter-process signalling.
    Of course, there many other ways for inter-process communication: pipes, FIFOs, message queues, shared memory, and even sockets (all SVR4 stuff).

    gg

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