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Semaphores and signals
CLEAR SEMAPHORE
| CLEAR SEMAPHORE ( semaphore ) | ||||||||
| Parameter | Type | Description | ||||||
| semaphore | String |
|
Semaphore to clear | |||||
CLEAR SEMAPHORE erases semaphore previously set by the Semaphore function.
As a rule, all semaphores that have been created should be cleared. If semaphores are not cleared, they remain in memory until the process that creates them ends. A process can only clear semaphores that it has created. If you try to clear a semaphore from within a process that did not create it, nothing happens.
See the example for Semaphore.
Product: 4D
Theme: Process (Communications)
Number:
144
Created: < 4D v6
4D Language Reference ( 4D v20 R7)
