[asterisk-bugs] Channel polling design and implementation issues

[Richard Braun]

Hello.

While testing app_queue in Asterisk trunk, I traced down a bug that
prevented the caller to reach a queue member. It turned out that function
ast_waitfor_nandfds_complex(), which uses epoll_wait(), uses the epfd
descriptor of the first channel only. If I understood things correctly,
the first channel epfd is used to register other channels' pipes. This
might be a serious design issue. Anyway, ast_waitfor_n(), as called by
app_queue, only returns the caller channel. Forcing the use of
ast_waitfor_nandfds_classic() solved the issue with app_queue...

Any comments on this ?

-- 
Richard Braun
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