VMS Help  —  RTL Routines, PPL$  PPL$DECREMENT_SEMAPHORE
    The Decrement a Semaphore routine waits for a semaphore to have a
    value greater than 0, then decrements the value by 1 to indicate
    the allocation of a resource.

    Format

      PPL$DECREMENT_SEMAPHORE  semaphore-id [,flags] [,spin]
Additional Information: explode extract
Arguments
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