[Asterisk-code-review] res pjsip: Deny requests when threadpool queue is backed up. (asterisk[13])

[Mark Michelson]

Hello Richard Mudgett, Anonymous Coward #1000019,

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

    https://gerrit.asterisk.org/1607

to look at the new patch set (#2).

Change subject: res_pjsip: Deny requests when threadpool queue is backed up.
......................................................................

res_pjsip: Deny requests when threadpool queue is backed up.

We have observed situations where the SIP threadpool may become
deadlocked. However, because incoming traffic is still arriving, the SIP
threadpool's queue can continue to grow, eventually running the system
out of memory.

This change makes it so that incoming traffic gets rejected with a 503
response if the queue is backed up too much.

Change-Id: I4e736d48a2ba79fd1f8056c0dcd330e38e6a3816
---
M include/asterisk/res_pjsip.h
M include/asterisk/taskprocessor.h
M include/asterisk/threadpool.h
M main/taskprocessor.c
M main/threadpool.c
M res/res_pjsip.c
M res/res_pjsip/pjsip_distributor.c
7 files changed, 44 insertions(+), 7 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/07/1607/2
-- 
To view, visit https://gerrit.asterisk.org/1607
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I4e736d48a2ba79fd1f8056c0dcd330e38e6a3816
Gerrit-PatchSet: 2
Gerrit-Project: asterisk
Gerrit-Branch: 13
Gerrit-Owner: Mark Michelson <mmichelson at digium.com>
Gerrit-Reviewer: Anonymous Coward #1000019
Gerrit-Reviewer: Mark Michelson <mmichelson at digium.com>
Gerrit-Reviewer: Matt Jordan <mjordan at digium.com>
Gerrit-Reviewer: Richard Mudgett <rmudgett at digium.com>