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    SubjectAny lightweight way for one thread to force another thread to suspend execution?
    From
    Is there any method for one thread to force another thread to suspend
    execution, then later let it resume, that is lighter weight than using
    signals? I don't need it to be portable to anything other than Linux.
    The suspend needs to be synchronous, but resume doesn't.

    What I've thought about so far (but haven't tested) for thread A
    to suspend thread B is to use a signal and two pthread conditions:

    Thread A Thread B
    ----------------------- -----------------------
    send signal to B

    wait on a cond 1

    enter signal handler

    signal cond 1

    wait on cond 2

    wake up
    do stuff that needs
    thread B suspended

    signal cond 2

    continue wake up


    Thanks for any suggestions!
    Eric Smith



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