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[Linphone-developers] session_set_select problem

From: Filipp . Andjelo
Subject: [Linphone-developers] session_set_select problem
Date: Thu, 15 Oct 2009 17:51:41 +0200


I've decided to use oRTP library for a large RTP session manager and now stucking. I have a dynamic list of rtp sessions. Because of the rich number of sessions, own thread for each one is not a solution, so I wanted to use session_set_select to send/recv data. I'm using a mutex to handle the critical section. Every time a session_set_select called, the list of running sessions is locked and no additional sessions can be added/removed, after select/send/recv is done Mutex will be unlocked and new sessions can be added to the list. In this time no send/recv is possible. So far is the theory, but if all running sessions are permanently not ready to send/recv, then session_set_select blocks forever. No send, no receive, no open new session or close running one.

The "normal" select  (based on filedescriptors) has an extra argument for timeout, to unblock the thread. how can it be done using oRTP. In current situation I don't see any possibility to have dynamic list of sessions, it works if the count of sessions is known from the beginning and is always constant. Shouldn't session_set_select(...) be extended by additional argument for timeout as select() is? Or is there any other solution.

Fast help is very appreciated.
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