[asterisk-bugs] [Asterisk 0018284]: [patch] devicestate is not aggregated from all received events

[Asterisk Bug Tracker]

The following issue has been RESOLVED. 
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https://issues.asterisk.org/view.php?id=18284 
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Reported By:                klaus3000
Assigned To:                russell
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Project:                    Asterisk
Issue ID:                   18284
Category:                   Core/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     resolved
Asterisk Version:           1.8.0 
JIRA:                       SWP-2536 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2010-11-09 11:29 CST
Last Modified:              2010-11-19 18:45 CST
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Summary:                    [patch] devicestate is not aggregated from all
received events
Description: 
When distributed devicestate (res_ais) is used, Asterisk should calculate
an aggregated device state based on local and received device states. This
is currently not done.

See
http://lists.digium.com/pipermail/asterisk-dev/2010-November/046926.html
and
http://lists.digium.com/pipermail/asterisk-dev/2010-November/046915.html
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Relationships       ID      Summary
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related to          0018280 EID is not copied when event is receive...
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 (0129003) svnbot (reporter) - 2010-11-19 18:45
 https://issues.asterisk.org/view.php?id=18284#c129003 
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Repository: asterisk
Revision: 295710

U   branches/1.6.2/include/asterisk/event.h
U   branches/1.6.2/main/event.c

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r295710 | russell | 2010-11-19 18:45:52 -0600 (Fri, 19 Nov 2010) | 29
lines

Fix cache of device state changes for multiple servers.

This patch addresses a regression where device states across multiple
servers
were not being processing completely correctly.  The code works to
determine
the overall state by looking at the last known state of a device on each
server.  However, there was a regression due to some invasive rewrites of
how
the cache works that led to the cache only storing the last device state
change
for a device, regardless of which server it was on.

The code is set up to cache device state change events by ensuring that
each
event in the cache has a unique device name + entity ID (server ID).  The
code
that was responsible for comparing raw information elements (which EID is)
always returned a match due to a memcmp() with a length of 0.

There isn't much code to fix the actual bug.  This patch also introduces a
new
CLI command that was very useful for debugging this problem.  The command
allows you to dump the contents of the event cache.

(closes issue https://issues.asterisk.org/view.php?id=18284)
Reported by: klaus3000
Patches:
      issue18284.rev1.txt uploaded by russell (license 2)
Tested by: russell, klaus3000

(closes issue https://issues.asterisk.org/view.php?id=18280)
Reported by: klaus3000

Review: https://reviewboard.asterisk.org/r/1012/

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http://svn.digium.com/view/asterisk?view=rev&revision=295710 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-11-19 18:45 svnbot         Note Added: 0129003                          
2010-11-19 18:45 svnbot         Status                   feedback => assigned
2010-11-19 18:45 svnbot         Status                   assigned => resolved
2010-11-19 18:45 svnbot         Resolution               open => fixed       
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