[asterisk-dev] [Code Review] Correct the number of available call numbers in IAX2

Sean Bright reviewboard at asterisk.org
Sat Jan 26 12:23:48 CST 2013

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(Updated Jan. 26, 2013, 12:23 p.m.)

Review request for Asterisk Developers.


Update the diff to address Richard's comments.

Interestingly, while testing this I observed that when chan_iax2 randomly chooses 32768, it effectively stalls for ~4 sec on my development machine.


While populating the list of available call numbers in IAX2 when LOW_MEMORY is not defined, we use every number between 2 and 32768 (inclusive).  32768 is a 16 bit number (a 1 followed by 15 0s).  According to the IAX2 RFC, call numbers are 15 bit values, making 32768 invalid.

This patch reduces the number of allocated call numbers by 1 so that the are all 15 bits.

I have another patch to replace the ao2_container usage for call number selection almost ready for RB as well.

Diffs (updated)

  /trunk/channels/chan_iax2.c 380158 

Diff: https://reviewboard.asterisk.org/r/2293/diff





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