AMX 86 ajsmget ajsmget

304

DAK

AMX 86 Procedures

ajsmget ajsmget

Purpose Get Use of a Semaphore (no wait)

Used by n Task n IS P n Timer Procedure n Restart Procedure n Exit Procedure

Setup AMXID semid;

int status;

status = ajsmget(semid);

AX BX

Where semid is the semaphore id of a counting semaphore acquired by a call to

ajsmcre.

Results Interrupts are disabled and then restored to their state at the time of the

call.

Status is returned.

AEROK = Call successful

AERNSS = Invalid semaphore id

AERSBY = Semaphore already in use

Use of the semaphore is not granted to caller.

Note This procedure returns immediately with an error indication if the

semaphore is in use. Tasks can wait for the use of the semaphore by

calling ajsmwat.

Restriction You must not attempt to get the use of a resource semaphore. Use

ajsmrsv for that purpose.