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Asked: 2026-05-16T17:24:19+00:00

what is main difference between shared memory and pipe in unix programming?

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what is main difference between shared memory and pipe in unix programming?

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  1. Editorial Team

    Taken from this article

    (unnamed) Pipes

    • Can switch between blocking and
      non-blocking mode
    • Don’t have to free them when done
    • Are automatically inherited by
      children
    • Must read and write in a linear
      fashion

    Shared Memory

    • Can store structures
    • Won’t ever block – positive
    • Can have as many programs read or
      write to it as you need
    • Won’t ever block – negative: must use
      semaphores or your own spin-locks
    • It’s possible for it to not be freed
      even when all programs exit
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