child spawning

This is a discussion on child spawning within the C Programming forums, part of the General Programming Boards category; hi there, i need some help with executing a file from within a program.... how do i spawn two child ...

  1. #1
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    child spawning

    hi there,
    i need some help with executing a file from within a program....
    how do i spawn two child programs concurrently from the parent program and after spawning the child programs the parent program exits(.i.e it gives birth to two child programs and dies)
    i saw the faq section and found out "spawn" commands but the thing is it based on windows and i am in linux....and also it doesnt mention about the parent exiting after spawning the childs
    any help will be greatly appreciated
    thanx

  2. #2
    ATH0 quzah's Avatar
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    man fork


    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
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    how to spawn 2 process simultaneously with fork?

  4. #4
    and the hat of wrongness Salem's Avatar
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    call fork twice of course.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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    the thing is i have a program(main) that needs to execute 2 programs(child) whose outputs are dependent on each other....

  6. #6
    and the hat of wrongness Salem's Avatar
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    So basically, you also want to arrange a pipe between them as well, so you end up with something like

    producer | consumer

    Both are children of your process, and one sends info to the other
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

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