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Where is sem_open - Mac Programming

Hi All, I'm using sem_open to create semaphores (why doent Cocoa provide this useful utility), but I get link errors. Anyone knows which dylib holds the sem_ functions ? Eric...

  1. #1

    Default Where is sem_open

    Hi All,

    I'm using sem_open to create semaphores (why doent Cocoa provide this useful
    utility), but I get link errors.

    Anyone knows which dylib holds the sem_ functions ?

    Eric

    Eric Guest

  2. #2

    Default Re: Where is sem_open

    dans l'article BBFAB9ED.16FB8%fr, Eric VERGNAUD à
    fr a écrit le 8/12/03 23:29:
     

    When I hexdump libSystem.B.dylib, I see the symbols sem_open etc...
    Does this mean semaphores are not available in MacoS ?

    Eric

    Eric Guest

  3. #3

    Default Re: Where is sem_open

    dans l'article BBFABDCD.16FF5%fr, Eric VERGNAUD à
    fr a écrit le 8/12/03 23:46:
     
    >
    > When I hexdump libSystem.B.dylib, I see the symbols sem_open etc...
    > Does this mean semaphores are not available in MacoS ?
    >
    > Eric
    >[/ref]

    Ok found it. The problem is simply that semaphore.h is not cpp aware. So you
    need to write:

    extern "C" {
    #include <semaphore.h>
    }

    Lost more tah half an hour on this...


    Grrrr.

    Eric

    Eric Guest

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