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can_act Cancel task activation request
ican_act Cancel task activation request (handler only)
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ER_UINT actcnt = can_act( ID tskid );
ER_UINT actcnt = ican_act( ID tskid );
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ID tskid
ID number of the task to cancel
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ER_UINT actcnt > 0 Canceled activation request count
actcnt < 0 Error code
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.include mr100.inc
can_act TSKID
ican_act TSKID
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TSKID ID number of the task to cancel
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Register
name
Content after service call is issued
R2R0 Canceled startup request count or error code
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This service call finds the number of task activation requests enqueued for the task indicated by tskid, returns the result as a
return parameter, and at the same time invalidates all of the task’s activation requests.
Specifying tskid=TSK_SELF(0) specifies the issuing task itself. If TSK_SELF is specified for tskid in non-task context,
operation of this service call cannot be guaranteed.
This service call can be invoked for a task in DORMANT state as the target task. In that case, the return parameter is 0.
If this service call is to be issued from task context, use can_act; if issued from non-task context, use ican_act.