Wait for acquire status

[whs92]

Solves #54

We couldn't get checkStatus(GetStatus(&value)); to work and so instead we reverted to getIntegerParam(ADStatus,&acquireStatus);

As was suggested on tech talk we had to unlock and then lock the thread so that the value of acquireStatus could be updated by another thread.

Additionally, because the thread was locked and unlocked it became important to set setIntegerParam(ADAcquire, 0); after the while(1) loop and not before it, otherwise (we guess) another thread is calling callParamCallbacks(); somewhere and prematurely setting ADAcquire.

We've tested this with our Andor camera for a few hundred acquisitions. Busy now always goes low after the camera leaves acquiring state. The problem seems to be fixed

[MarkRivers]

Thanks. Your PR has unrelated changes in line 904-922 and 1412-1413. Can you revert those changes so only the lines relevant to this PR are changed?

[MarkRivers]

We couldn't get checkStatus(GetStatus(&value)); to work and so instead we reverted to getIntegerParam(ADStatus,&acquireStatus);

Can you explain in what way my PR that directly called checkStatus(GetStatus(&value)) did not work? It seems like a simpler fix, since it does not require inter-thread synchronization and communication.

[whs92]

We couldn't get checkStatus(GetStatus(&value)); to work and so instead we reverted to getIntegerParam(ADStatus,&acquireStatus);

Can you explain in what way my PR that directly called checkStatus(GetStatus(&value)) did not work? It seems like a simpler fix, since it does not require inter-thread synchronization and communication.

We tried your suggestion and found that the busy record was still set low before the detector had finished acquiring. We didn't look too much into it and tried this other aproach which did work.

[whs92]

Thanks. Your PR has unrelated changes in line 904-922 and 1412-1413. Can you revert those changes so only the lines relevant to this PR are changed?

The other changes were caused by me opening and saving the file while git was configured to fix mixed line endings.

I have reverted those changes.