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From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: rpm@xenomai.org
Cc: xenomai@xenomai.org, Filip Van Rillaer <Filip.VanRillaer@domain.hid>
Subject: Re: [Xenomai-help] xnpipe EPOLLIN starvation
Date: Thu, 31 Jul 2008 14:14:19 +0200	[thread overview]
Message-ID: <4891AC9B.9020704@domain.hid> (raw)
In-Reply-To: <489194FD.8000004@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.


  parent reply	other threads:[~2008-07-31 12:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-31  9:20 [Xenomai-help] xnpipe EPOLLIN starvation Filip Van Rillaer
2008-07-31 10:12 ` Gilles Chanteperdrix
2008-07-31 10:20   ` Filip Van Rillaer
2008-07-31 10:33     ` Philippe Gerum
2008-07-31 10:45       ` Filip Van Rillaer
     [not found]         ` <4891D5A3.1060004@domain.hid>
     [not found]           ` <406CC9939904F143B9D42CEEA3E56E563EE103@domain.hid>
     [not found]             ` <4891DEBC.2050400@domain.hid>
2008-08-01 10:50               ` Filip Van Rillaer
2008-08-22 20:22                 ` Philippe Gerum
2008-07-31 12:14       ` Gilles Chanteperdrix [this message]
2008-07-31 13:27         ` Filip Van Rillaer
2008-07-31 14:21 ` Philippe Gerum

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