what does semaphores mean
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Thread: what does semaphores mean

  1. #1
    Join Date
    Aug 2001
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    Hi friends,
    What does semaphores mean.
    This is basically a parameter that u set in unix along with shared memory.

    cheese
    anandkl
    anandkl

  2. #2
    Join Date
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    Helsinki. Finland
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    Semaphores are the Oracle system resources used for for interprocess communication.

    On the otehr hand, shared memory is used to contain the SGA.

    Oracle Certified Master
    Oracle Certified Professional 6i,8i,9i,10g,11g
    email: ocp_9i@yahoo.com

  3. #3
    Join Date
    Jan 2002
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    Lightbulb

    Theotically, semaphore is a kind of lock which prevents more than 2 processes accessing (at the same time) a specific critical section in memory. Actually, every OS make use of it. If you want to know more about, check some OS books.

  4. #4
    Join Date
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    Sorry for the mistake I made in my previous message. I meant: semaphore aloows only one process accessing specific meory section at a time.

  5. #5
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    Ronnie
    ronnie_yours@yahoo.com

    You can if you think you can.

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