[Asterisk-code-review] Change in asterisk[master]: astobj2: Add support for weakproxy objects.

[Corey Farrell (Code Review)]

Corey Farrell has uploaded a new patch set (#2).

Change subject: astobj2: Add support for weakproxy objects.
......................................................................

astobj2: Add support for weakproxy objects.

This implements "weak" references.  The weakproxy object is a real ao2 with
normal reference counting of its own.  When a weakproxy is pointed to a normal
object they hold references to each other.  The normal object is automatically
freed when a single reference remains (the weakproxy).  The weakproxy also
supports subscriptions that will notify callbacks when it does not point
to any real object.

ASTERISK-24936 #close
Reported by: Corey Farrell

Change-Id: Ib9f73c02262488d314d9d9d62f58165b9ec43c67
---
M include/asterisk/astobj2.h
M main/astobj2.c
A tests/test_astobj2_weaken.c
3 files changed, 645 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/56/56/2
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ib9f73c02262488d314d9d9d62f58165b9ec43c67
Gerrit-PatchSet: 2
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Corey Farrell <git at cfware.com>
Gerrit-Reviewer: Richard Mudgett <rmudgett at digium.com>