Closing MantidPlot while an algorithm is running causes a segmentation fault

[Russell Taylor]

While this is not critically important, we should fix it.

The crashes seem to happen at a logging call, but that's not important: basically, we need to cancel all running algorithms before exiting (at the moment this only happens if running from a script).

N.B. This is seen on all platforms. A good algorithm to try it on is MonitorLiveData (kicked off by StartLiveData). Extremely simple algorithms (e.g. Pause) don't show up the problem.

[Russell Taylor]

Re #5600. Cancel all running algorithms before MantidPlot shuts down.

Otherwise a seg fault is pretty much guaranteed once the logging framework has been shut down. This issue comes to the fore with live data runs.

Changeset: 934412f7ceb0b00d9e538ef8a6ac1b324761db43

[Russell Taylor]

Re #5600. Add a check for cancellation after exec() has completed.

Allows algorithms that don't check for cancellation to be recorded as cancelled rather than running to completion. Helps scripts to stop. (Note that such algorithms are few as any that use openmp or progress reporting will be checking the cancellation flag.)

Changeset: 69cccac557cb5273682306bddd85f9ecf0012b01

[Russell Taylor]

Exits should be clean now.

[Russell Taylor]

Re #5600. Cancel all running algorithms before MantidPlot shuts down.

Otherwise a seg fault is pretty much guaranteed once the logging framework has been shut down. This issue comes to the fore with live data runs.

Changeset: 934412f7ceb0b00d9e538ef8a6ac1b324761db43

[Russell Taylor]

Re #5600. Add a check for cancellation after exec() has completed.

Allows algorithms that don't check for cancellation to be recorded as cancelled rather than running to completion. Helps scripts to stop. (Note that such algorithms are few as any that use openmp or progress reporting will be checking the cancellation flag.)

Changeset: 69cccac557cb5273682306bddd85f9ecf0012b01

[Vickie Lynch]

Had seven threads running MonitorLiveData when I closed MantidPlot. No crash.

[Stuart Campbell]

This ticket has been transferred to github issue ​6446