Difference between revisions of "MC-Basic:COMMON SHARED ... AS SEMAPHORE"
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| + | {{Languages|MC-Basic:COMMON_SHARED_..._AS_SEMAPHORE}} | ||
{{MC-Basic | {{MC-Basic | ||
|SHORT FORM= | |SHORT FORM= | ||
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|AVAILABILITY= | |AVAILABILITY= | ||
| − | + | All versions<br> | |
| + | Arrays of semaphores are Since Version 4.9.7 | ||
|DESCRIPTION= | |DESCRIPTION= | ||
| − | Defines new semaphore | + | 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. |
|TYPE= | |TYPE= | ||
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Configuration, Task, Terminal | Configuration, Task, Terminal | ||
| − | Since | + | Since Version 4.5.17 the global (common shared ) declaration is also possible from the Library context. |
|LIMITATIONS= | |LIMITATIONS= | ||
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|EXAMPLE= | |EXAMPLE= | ||
-->common shared sem as semaphore<br> | -->common shared sem as semaphore<br> | ||
| − | |||
-->?semtake(sem)<br> | -->?semtake(sem)<br> | ||
| − | |||
1<br> | 1<br> | ||
| − | |||
-->semgive(sem)<br> | -->semgive(sem)<br> | ||
| − | |||
--> | --> | ||
|SEE ALSO= | |SEE ALSO= | ||
| − | * [[ | + | * [[MC-Basic:SEMAPHOREGIVE|SEMAPHOREGIVE]] |
| − | * [[ | + | * [[MC-Basic:SEMAPHORETAKE|SEMAPHORETAKE]] |
| − | [[Category | + | [[Category:MC-Basic:Declarations|COMMON SHARED ... AS SEMAPHORE]] |
}} | }} | ||
Latest revision as of 09:33, 26 April 2017
| Language: | English • 中文（简体） |
|---|
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)
-->