GIVESEM
(Statement)
Releases a task from waiting for a semaphore.
GIVESEM <Semaphore ID>
This statement releases the semaphore designated in <Semaphore ID>.
The system permits a restart of a process if there is one task which has the semaphore designated in <Semaphore ID> when it is released. If there is a task waiting for multiple semaphores, the system determines the execution sequence using the queuing system designated by the CREATESEM command when the semaphores were created.
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DEFINT Li1, Li2, Li3 = 1
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Li1 = CREATESEM(Li3)
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'Creates a semaphore with the queuing system
'designated in Li3 and the semaphore
'ID obtained in Li1.
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Li2 = CREATESEM(Li3)
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'Creates a semaphore with the queuing system
'designated in Li3 and the semaphore
'ID obtained in Li2.
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TAKESEM Li1
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'Obtains the semaphore designated in Li1.
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TALESEM Li2, 100
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'Obtains the semaphore designated in Li1.
'However, a timeout occurs after 100 ms.
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RUN samp1
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GIVESEM Li1
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'Releases one task from the wait status
'which has the semaphore designated in Li1.
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FLUSHSEM Li2
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'Releases all tasks from the wait status
'which have the semaphore designated in Li2.
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DELETESEM Li1
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'Deletes the semaphore with the semaphore
'ID designated in Li1.
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DELETESEM Li2
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'Deletes the semaphore with the semaphore
'ID designated in Li2.
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