[asterisk-dev] channel name uniqueness

[Paul Albrecht]

On Tue, 2009-05-19 at 07:24 -0500, Russell Bryant wrote:
> On May 18, 2009, at 5:38 PM, paul at glccom.com wrote:
> 
> >
> > The names of the active sip channels are guaranteed to be unique  
> > only if
> > asterisk data pointers are 32 bits, that is, asterisk is compiled on a
> > 32 bit system. If, on the other hand, asterisk is compiled on a 64 bit
> > system, pointers are 64 bits so that a 32 bit data pointer is  
> > ambiguous
> > because heap is allocated both above and below 4 gigabytes.
> 
> 
> Yes, you are correct.  I'm sorry for missing what you were saying the  
> first time.  So, while it seems like running into this problem would  
> be very unlikely, it is a bug that we need to address.
> 
> It would be excellent if you could post this to issues.asterisk.org.
> 

OK, I'll add this to asterisk's issue tracker ... I have another
question about the channel name: Given a channel name, how do I, a
module writer, efficiently find the corresponding channel address? The
reason I'm asking is because I know I could use "channel_find_locked",
but I'd like to avoid a linear search over all active channels.

> --
> Russell Bryant
> Digium, Inc. | Senior Software Engineer, Open Source Team Lead
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: www.digium.com & www.asterisk.org
> 
> 
> 
> 
> 
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-- 
Paul Albrecht