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Each of the processing threads have 3 different status flags defined in the }APQ C3 Thread Control cube. The main thread uses the status flags for threads monitoring and to detect time when all of the child threads have finished their processing.
The thread status transitions are summarised in below table.
Status Change Originator
Process Stage | Main Thread | Child Thread |
|---|
Main thread prolog
Before spawning child threads | Scheduled=0
Running=0
Completed=0
| Scheduled=0
Running=0
Completed=0
|
Main thread prolog
When spawning child threads | Scheduled=1
Running=1
Completed=0
| Scheduled=1
Running=0
Completed=0
|
Child thread prolog
After checking params | | Scheduled=1
Running=1
Completed=0
|
Child thread prolog
Last statement of prolog | | Scheduled=0
Running=1
Completed=0
|
Main thread epilog
Before polling child threads | Scheduled=0
Running=0
Completed=1
| |
Child thread epilog
Before formulating message | | Scheduled=0
Running=0
Completed=1
|