[Asterisk-code-review] taskprocessor.c: Prevent crash on graceful shutdown (asterisk[16])

[Michael Bradeen]

Attention is currently required from: Michael Bradeen, Benjamin Keith Ford.
Hello Joshua Colp, Friendly Automation, Benjamin Keith Ford, 

I'd like you to reexamine a change. Please visit

    https://gerrit.asterisk.org/c/asterisk/+/17955

to look at the new patch set (#5).

Change subject: taskprocessor.c: Prevent crash on graceful shutdown
......................................................................

taskprocessor.c: Prevent crash on graceful shutdown

When tps_shutdown is called as part of the cleanup process there is a
chance that one of the taskprocessors that references the
tps_singletons object is still running.  The change is to allow for
tps_shutdown to check tps_singleton's container count and give the
running taskprocessors a chance to finish.  If after
AST_TASKPROCESSOR_SHUTDOWN_MAX_WAIT (10) seconds there are still
container references we shutdown anyway as this is most likely a bug
due to a taskprocessor not being unreferenced.

ASTERISK-29365

Change-Id: Ia932fc003d316389b9c4fd15ad6594458c9727f1
---
M include/asterisk/taskprocessor.h
M main/taskprocessor.c
2 files changed, 39 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/55/17955/5
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Gerrit-Project: asterisk
Gerrit-Branch: 16
Gerrit-Change-Id: Ia932fc003d316389b9c4fd15ad6594458c9727f1
Gerrit-Change-Number: 17955
Gerrit-PatchSet: 5
Gerrit-Owner: Michael Bradeen <mbradeen at sangoma.com>
Gerrit-Reviewer: Benjamin Keith Ford <bford at digium.com>
Gerrit-Reviewer: Friendly Automation
Gerrit-Reviewer: Joshua Colp <jcolp at sangoma.com>
Gerrit-Attention: Michael Bradeen <mbradeen at sangoma.com>
Gerrit-Attention: Benjamin Keith Ford <bford at digium.com>
Gerrit-MessageType: newpatchset
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