AMX 86 ajwake ajwake

AMX 86 Procedures

DAK

343

ajwake ajwake

Purpose Wake a Waiting Task

To wake up a task known to be waiting because of an ajwait or ajwatm

call.

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

Setup AMXID taskid;

int status;

status = ajwake(taskid);

AX DX

Where taskid is the task id of the task to be wakened.

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

call.

Status is returned.

AEROK = Call successful

AERWKP = Warning: Task was not waiting

Wake request is now pending

AERNST = Invalid task id

AERTNW = Task was not waiting and a wake request was already

pending before this ajwake call

An immediate task switch will occur if the task being wakened is of higher

priority than the current task.

Note This procedure provides a simplified form of task signalling (see ajsgnl).