[Asterisk-code-review] Change in asterisk[master]: pjsip_options: Add qualify_timeout processing and eventing

[George Joseph (Code Review)]

George Joseph has uploaded a new patch set (#3).

Change subject: pjsip_options: Add qualify_timeout processing and eventing
......................................................................

pjsip_options: Add qualify_timeout processing and eventing

This is the second follow-on to https://reviewboard.asterisk.org/r/4572/ and the
discussion at
http://lists.digium.com/pipermail/asterisk-dev/2015-March/073921.html

The basic issues are that changes in contact status don't cause events to be
emitted for the associated endpoint.  Only dynamic contact add/delete actions
update the endpoint.  Also, the qualify timeout is fixed by pjsip at 32 seconds
which is a long time.

This patch makes use of the new transaction timeout feature in r4585 and
provides the following capabilities...

1.  A new aor/contact variable 'qualify_timeout' has been added that allows the
user to specify the maximum time in milliseconds to wait for a response to an
OPTIONS mesasge.  The default is 3000ms.  When the timer expires, the contact is
marked unavailable.

2.  Contact status changes are now propagated up to the endpoint as follows...
When any contact is 'Available', the endpoint is marked as 'Reachable'.  When
all contacts are 'Unavailable', the endpoint is marked as 'Unreachable'.  The
existing endpoint events are generated appropriately.

Testing Done:
Existing tests are unchanged.  I'm working on new testsuite tests to check the
new functionality.

Change-Id: Id0ce0528e58014da1324856ea537e7765466044a
Tested-by: Dmitriy Serov
Tested-by: George Joseph <george.joseph at fairview5.com>
---
M CHANGES
M configs/samples/pjsip.conf.sample
A contrib/ast-db-manage/config/versions/2256a84ca226_add_pjsip_qualify_timeout.py
M include/asterisk/endpoints.h
M include/asterisk/res_pjsip.h
M main/endpoints.c
M res/res_pjsip.c
M res/res_pjsip/location.c
M res/res_pjsip/pjsip_configuration.c
M res/res_pjsip/pjsip_options.c
10 files changed, 285 insertions(+), 35 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/47/47/3
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Id0ce0528e58014da1324856ea537e7765466044a
Gerrit-PatchSet: 3
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: George Joseph <george.joseph at fairview5.com>