MC-Basic:COMMON SHARED ... AS SEMAPHORE

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Defines new semaphore variables in the system. There are only two function for accessing this variable type: SEMTAKE and SEMGIVE. No other operations (e.g., printing, arguments) are allowed with this data type.

Syntax

COMMON SHARED <semaphore name> AS SEMAPHORE

Availability

All versions
Arrays of semaphores are Since Version 4.9.7         

Scope

Configuration, Task, Terminal

Since Version 4.5.17 the global (common shared ) declaration is also possible from the Library context.

Examples

-->common shared sem as semaphore
-->?semtake(sem)
1
-->semgive(sem)
-->

See Also

• SEMAPHOREGIVE
• SEMAPHORETAKE