On Thu, Apr 9, 2009 at 9:52 AM, Ross Finlayson <finlay...@live555.com> wrote:
Thanks for the suggestion; I like this.
Unless anyone sees a problem with this, I will include it in the next
release of the software.
Hello,
On Linux, select() is implemented above poll().
What do you mean by this?
In net/core/datagram.c
(linux 2.6.26 sources), in datagram_poll() you can see the lines that
check for readable event on the socket :
/* readable? */
if (!skb_queue_empty(&sk->sk_receive_queue) ||
(sk->sk_shutdown & RCV_SHUTDOWN))
mask |= POLLIN | POLLRDNORM;
The event is set if the socket input buffer is not empty.
So what is your conclusion? Are you implying that we should (on Unix
systems) be using "poll()" instead of "select()", and that if we use
"poll()", we won't need the optimization that Bryan Moore proposed?
Or are you implying that we don't need this optimization even if we
use "select()"??
--
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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