Thread: process semaphores cleanup problem

  1. #1
    Registered User
    Join Date
    May 2005

    Unhappy process semaphores cleanup problem

    Hi all,

    My is probem is that I want to do some cleanup action if a process gets ki
    lled. Is there any way I can attach a cleanup routine ( like pthread_cleanup
    _push: in case of pthreads) in a process (not a thread)

    Actually My process deals with shared memory & semaphores...& if it gets ki
    lled while semaphore is in locked state...there occurs a problem...(others p
    rocessess can no longer use that shared memory resource)
    So I want to install a Cleanup Handler ( in C language on linux platform) so
    as to unlock the semaphores just prior to termination.

    Help me guys...........

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    Look into signal handlers.
    Then trap on say SIG_QUIT

    You won't be able to trap SIG_KILL
    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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