<br><font size=2 face="sans-serif">Hi All,</font>
<br>
<br><font size=2 face="sans-serif">We use Asterisk version 1.4.22 in our
PBX product. But we have seen that the locking mechanism that exists in
the channel code today is highly inefficient and CPU consuming. Also, if
not careful with the locks order, can lead to deadlocks.</font>
<br>
<br><font size=2 face="sans-serif">So, was wondering if anything has changed
with regard to this in the later versions of Asterisk (1.4 or 1.6). There
were talks of introducing a reference counting mechanism - was this implemented?</font>
<br>
<br><font size=2 face="sans-serif">If I see channel.c and lock.h in 1.4.36,
I do not see any changes there wrt the locking mechanism. And in ver 1.6.2,
except for the RW locks, I do not see any other difference.</font>
<br>
<br><font size=2 face="sans-serif">Can somebody tell me what changes were
introduced in Asterisk 1.6 to manage and debug the locking of the channels
efficiently please?</font>
<br>
<br><font size=2 face="sans-serif">Thanks,</font>
<br>
<br><font size=2 face="sans-serif">-Bhatc</font>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;">************************************************************************************<br>
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify mailadmin@lakecommunications.com</span></p>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;"></span></p>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;"> </span></p>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;">This footnote also confirms that this email message has been scanned for the presence of computer viruses and other security threats.</span></p>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;"></span></p>
<p align= "justify"><span style="font-family:'Arial';font-size:8pt;"> </span></p><p><span style="font-family:'Arial';font-size:8pt;">Registered Office: Lake Communications Ltd, Beech House, Greenhills Road, Dublin 24, Ireland.</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">Registered No.         59890</span></p>
<p><span style="font-family:'Arial';font-size:8pt;">************************************************************************************</span></p>
<p><span style="font-family:'Arial';font-size:8pt;"> </span></p>