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Date: Thu, 31 Jul 2008 14:14:19 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] xnpipe EPOLLIN starvation
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To: rpm@xenomai.org
Cc: xenomai@xenomai.org, Filip Van Rillaer <Filip.VanRillaer@domain.hid>

Philippe Gerum wrote:
> Filip Van Rillaer wrote:
>> Hello Gilles,
>>
>> EPOLLET is indeed enabled.
>> The first time EPOLLIN is received in the 2nd domain, I do a read (it
>> receives 1 byte in a buffer of 256).  So the read is exhausted and I
>> expect that the next time data arrives I should get the EPOLLIN (as it
>> BECOMES readable). 

My point is that, when edge-triggered, you will not get notified if you
receive data while the reading thread has not yet managed to handle the
first notification.

-- 
                                                 Gilles.