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[lwip-devel] [bug #19161] lwip_select mishandles sub 500us delays

From: Rob Stedman
Subject: [lwip-devel] [bug #19161] lwip_select mishandles sub 500us delays
Date: Tue, 27 Feb 2007 07:14:30 +0000
User-agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)


                 Summary: lwip_select mishandles sub 500us delays 
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: robstedman1
            Submitted on: Tuesday 27/02/07 at 07:14
                Category: sockets
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any



My understanding is lwip_select uses sys_sem_wait_timeout when pending the

If the supplied struct timeval is sub 500us then a timeout of 0 msec is
passed to sys_sem_wait_timeout which is wrongly interpreted as wait forever.


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