Library /sys$common/syshlp/helplib.hlb  —  RTL Routines, PPL$  PPL$READ_SEMAPHORE
    The Read Semaphore Values routine returns the current or maximum
    values, or both, of the specified counting semaphore. The
    semaphore must have been created by PPL$CREATE_SEMAPHORE.

    Format

      PPL$READ_SEMAPHORE  semaphore-id [,semaphore-value]

                          [,semaphore-maximum]
Additional Information: explode extract
Arguments
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