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can_wup
ican_wup
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Cancel task wake-up requests.
ER_UINT can_wup (ID tskid);
ER_UINT ican_wup (ID tskid);
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ID tskid;
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Value: ID number of the task.
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These service calls cancel all of the wake-up requests queued to the task specified by parameter
tskid (the wake-up request counter is set to 0), and return the number of cancelled wake-up requests.
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Normal completion (wake-up request count).
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- When this service call was issued from a non-task, TSK_SELF was specified for tskid.
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- This service call was issued in the CPU locked state.
- This service call was issued in the status PSW.IPL > kernel interrupt mask level.
Note When the ican_wup is issued from task or the can_wup is issued from non-task, the context error is not detected and normal operation of the system is not guaranteed.
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- Specified task is in the DORMANT state.
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- The task specified by tskid does not exist.
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