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From: Karl Zilles <zilles@1969web.com>
To: Orlin Grigorov <ogrigorov@gmail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] How to monitor a specific file for changes
Date: Mon, 22 Oct 2007 12:42:28 -0700	[thread overview]
Message-ID: <471CFD24.30805@1969web.com> (raw)
In-Reply-To: <b17e12b30710221230t15374864ha746026f45f2dbb4@mail.gmail.com>

Orlin Grigorov wrote:
> Oh, here's another idea---every certain amount of time, I just compare 
> my last saved version of the file to the current one---if different, 
> there's my event.   What do you think?

Just stat it.  You can stat it every second and never notice any 
performance issue.  In fact you can stat a whole directory of files 
every second and never notice.  It'll work cross platform, and it's easy:

let modtime file =
         let filedata = Unix.stat file in
         filedata.Unix.st_mtime


In a loop, compare the modtime to the previous modtime, then
Unix.sleep 1;


  parent reply	other threads:[~2007-10-22 19:42 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-22 19:03 Orlin Grigorov
2007-10-22 19:05 ` [Caml-list] " Robert Fischer
2007-10-22 19:09 ` Sylvain Le Gall
2007-10-22 19:11 ` [Caml-list] " Andrew Gacek
2007-10-22 19:20 ` Erik de Castro Lopo
2007-10-22 19:30   ` Orlin Grigorov
2007-10-22 19:38     ` Erik de Castro Lopo
2007-10-22 19:39     ` Jake Donham
2007-10-22 19:44       ` Orlin Grigorov
2007-10-22 19:42     ` Karl Zilles [this message]
2007-10-22 19:57       ` Orlin Grigorov
2007-10-23  7:50         ` Dave Benjamin
2007-10-23 17:17           ` Orlin Grigorov
2007-10-24 12:54       ` Richard Jones
2007-10-24 18:14         ` Karl Zilles
2007-10-24 21:56           ` Sylvain Le Gall
2007-10-22 19:43     ` Re : [Caml-list] " Adrien
2007-10-22 19:59 ` Gordon Henriksen
2007-10-24 12:53 ` Richard Jones

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