From: "Mark Hamblin" <MarkHamblin@cox.net>
To: "Davide Libenzi" <davidel@xmailserver.org>
Cc: "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] 2.5.46: epoll ep_insert doesn't wake waiters if events exist
Date: Fri, 8 Nov 2002 08:49:46 -0700 [thread overview]
Message-ID: <014f01c2873e$794089b0$0200a8c0@cirilium.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0211071521070.1751-100000@blue1.dev.mcafeelabs.com>
Looking at the documentation at
http://www.xmailserver.org/linux-patches/epoll_wait.txt, I noticed that the
description for epoll_wait states: "On success, epoll_wait(2) returns the
number of file descriptors ready for the requested I/O." My question is if
I have, for example, 1000 sockets registered with epoll and 100 of them have
received data and I call epoll_wait with max_events set to 10, will
epoll_wait return 10 or 100? Furthermore, does the edge-triggered nature of
epoll "eat the edge" for the other 90 sockets even though they didn't get
returned? Finally, if those 10 sockets get more data before I call
epoll_wait with max_events = 10 again, will those same 10 sockets get
returned?
- Mark
next prev parent reply other threads:[~2002-11-08 15:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-07 22:53 Jay Vosburgh
2002-11-07 23:24 ` Davide Libenzi
2002-11-08 15:49 ` Mark Hamblin [this message]
2002-11-08 17:43 ` Davide Libenzi
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