RE: beepclock code attempt 2
- From: "Ken Perry" <whistler@xxxxxxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Sun, 8 Jun 2008 15:12:07 -0700
You will find them in socket programming. It is used a lot in programming
in unix and linux but windows uses threads and messages more than poling.
Ken
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Hall
Sent: Sunday, June 08, 2008 1:45 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: beepclock code attempt 2
Thanks. I will try to adapt these functions to get them to work with my
program. This looks like just what I am looking for.
Are these types of loop ever used anywhere else in programming? I have never
heard of them before.
Have a great day,
Alex
> ----- Original Message -----
>From: "Ken Perry" <whistler@xxxxxxxxxxxxx
>To: <programmingblind@xxxxxxxxxxxxx
>Date sent: Sun, 8 Jun 2008 11:39:31 -0700
>Subject: RE: beepclock code attempt 2
>Select is a c or c++ function that waits for input on sockets or
pipes.
>Since standard in and out are just input pipes you can put them
in the
>select statement to be waited on. It can be made to be non
blocking so that
>the rest of your program can continue while it is waiting on
input. When
>it gets input the next time through the loop the input list will
be set so
>that you can test for input. An example of this would be on
this page
>http://cc.byexamples.com/20070408/non-blocking-user-input-in-loop
-without-nc
>urses/
>This is what they call a poling loop. You loop round and round
asking if
>you have input if you don't you go on doing what ever you want
the program
>to do in your case you would want to check for input, check to
see if time
>had changed, and then wait one second..
>Ken
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