barrier-set-count

Arguments: barrier new-count

When barrier is a barrier object, sets the value of the barrier count. The new-count argument may be a positive integer (and may not be zero), or t to denote most-positive-fixnum.

If the barrier is disabled, simply update the count and leave the barrier disabled.

If the barrier is enabled but still below the new-count, then simply update the count.

Otherwise the call is eqivalent to (barrier-unblock barrier :reset-count new-count). See barrier-unblock.

See Barrier API in smp.htm.

See multiprocessing.htm for general information on multiprocessing in Allegro CL.

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Created 2019.8.20.