[Asterisk-Dev] Patch for hang in ast_read/capi_read

[Philip Warner]

At 10:12 PM 21/04/2005, Philip Warner wrote:
>I don't know enough about the internals of this to understand what is going on.

It *looks* like the call to 'poll' times out, but not at the exact millisecond
expected (or system times are slightly out in comparison to timer used by 
poll).

The attached patch checks for a 0 return from poll which according to the docs
means a timeout. If zero is returned, it explicitly sets *ms to 0.

The problem has now gone away, along with several annoying deadlock messages.

This looks safe to me, but I'd appreciate someone who knows asterisk looking at it!


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