Bugfix presence race 2 #726
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added 4 commits
July 22, 2016 10:49
…rting - The presence implementation is a little dubious, to say the least. It probably wants re-writing at some stage. However, this fixes a race condition that could have a number of causes in which the PUA is unaware of the eTag at the point it sends the PUBLISH.
- Fixes a race condition caused by, for example, the call being answered at almost exactly the same time as the caller cancels. This causes a terminated state to change back to completed. The dialog is then removed from the database and the presentity entry stays in place until it expires. - This fix explicitly prevents terminated entries being updated as the state machine in RFC 4235 prohibits this behaviour.
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presentity: don't update terminated presentity entries in the database