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@CHIP-RTOS C Library - RTOS API


RTX_Release_Sem

Release a resource semaphore.

int RTX_Release_Sem ( int semID );

Parameters

semID

The semaphore ID of a resource semaphore acquired by a call to RTX_Create_Sem.

Return Value

0 on success else error code.

Comments

The resource's usage count is decremented by one for each call to this function.   The resource is not freed until the usage count becomes zero.

Once freed, the resource will immediately be given to the task (if any) which is waiting at the head of this semaphore's wait queue.   Task rescheduling occurs immediately if necessary.

See Also

RTOS API

This library function invokes a RTOS software interrupt. Refer to this RTOS API function's documentation for more details.

Related Topics

RTX API   Overview

Supported since or modified in @CHIP-RTOS version

    SC12SC13SC11SC1x3SC2x
    V1.00V1.00V1.00V0.90V1.00

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