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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3377/">https://reviewboard.asterisk.org/r/3377/</a>
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<p style="margin-top: 0;">On March 28th, 2014, 4:15 a.m. EDT, <b>wdoekes</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3377/diff/4/?file=56828#file56828line37" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/contrib/scripts/refcounter.py</a>
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(Diff revision 4)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">print</span> <span class="s">"ERROR: ref debug line '</span><span class="si">%s</span><span class="s">' contains fewer tokens than "</span> \</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="s">"expected: </span><span class="si">%d</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">line</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">tokens</span><span class="p">))</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">print >>sys.stderr, "blah"</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I had considered suggesting this, but then I thought about redirection. I suspect the common patterns for using this script will be:
refcounter.py > results
refcounter.py | less
In the normal case refcounter.py is reading an automatically generated file, this message will never be printed. For the abnormal case, lets assume /var/log/asterisk/refs has been replaced by a file with a different format. We don't want to flood the terminal with thousands of error lines. I often use "|less" to retain my current scrollback buffer, it would be very annoying to find my scrollback was filled with by this message being repeatedly printed. I feel that this utility should only use STDERR to report why it is giving up.</pre>
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<p>- Corey</p>
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<p>On March 27th, 2014, 10:23 p.m. EDT, Matt Jordan wrote:</p>
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<div>Review request for Asterisk Developers, Corey Farrell and wdoekes.</div>
<div>By Matt Jordan.</div>
<p style="color: grey;"><i>Updated March 27, 2014, 10:23 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Note: while an improvement to Asterisk, this patch only affects Asterisk when compiled in -dev-mode. Since it has benefit only for developers looking to fix bugs, I'm proposing it for Asterisk 1.8+. The removal of refcounter should be done in trunk only.
Asterisk uses reference counted objects. A lot. As their use has spread, the bugs related to reference counting errors has grown as well. Central to resolving reference counting issues is the usage of REF_DEBUG; unfortunately, REF_DEBUG has had several problems:
(1) It could not be enabled through menuselect
(2) When not enabled globally, updates to objects were often lost, resulting in insufficient data to resolve problems
(3) The format of the ref debug log file was not suitable for parsing
This patch changes REF_DEBUG in the following ways:
(1) It makes REF_DEBUG a meneselect item when Asterisk is compiled with --enable-dev-mode
(2) The ref debug log file is now created in the AST_LOG_DIR directory. Every run will now blow away the previous run (as large ref files sometimes caused issues). We now also no longer open/close the file on each write, instead relying on fflush to make sure data gets written to the file (in case the ao2 call being performed is about to cause a crash)
(3) It goes with a comma delineated format for the ref debug file. This makes parsing much easier.
(4) It throws out the refcounter utility and goes with a python script instead.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Things spit out ref logs and the script parses them. Example below:
==== Object 0x21ed9b8 history ====
features.c[5427]:create_parkinglot 1 - [**constructor**]
features.c[5707]:build_parkinglot +1 - [1]
features.c[5392]:parkinglot_unref -1 - [2]
features.c[6358]:build_dialplan_useage_map +1 - [1]
features.c[6358]:build_dialplan_useage_map -1 - [2]
features.c[4985]:find_parkinglot +1 - [1]
features.c[5392]:parkinglot_unref -1 - [2]
features.c[6358]:build_dialplan_useage_map +1 - [1]
features.c[6358]:build_dialplan_useage_map -1 - [2]
features.c[4955]:do_parking_thread +1 - [1]
features.c[4957]:do_parking_thread -1 - [2]
astobj2.c[955]:cd_cb_debug -1 deref object via container destroy - [1]
astobj2.c[955]:cd_cb_debug -1 deref object via container destroy - [**call destructor**]
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/1.8/utils/refcounter.c <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/utils/Makefile <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/main/astobj2.c <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/main/asterisk.c <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/include/asterisk/astobj2.h <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/contrib/scripts/refcounter.py <span style="color: grey">(PRE-CREATION)</span></li>
<li>/branches/1.8/channels/chan_sip.c <span style="color: grey">(410891)</span></li>
<li>/branches/1.8/build_tools/cflags.xml <span style="color: grey">(410891)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3377/diff/" style="margin-left: 3em;">View Diff</a></p>
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