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From: Ker Lutyn <ker527mail@yahoo.com>
To: caml-list@inria.fr
Subject: atomicity guarantees for threaded code
Date: Fri, 29 Oct 2004 09:39:07 -0700 (PDT)	[thread overview]
Message-ID: <20041029163907.36287.qmail@web40611.mail.yahoo.com> (raw)

Are there any guarantees for atomicity in threaded OCaml code? Or must I always
use a mutex? For example:

module StringMap = Map.Make (String)

let mapref = ref StringMap.empty

thread 1:

    mapref := StringMap.add key value !mapref

thread 2 through thread N:

    let value = StringMap.find key !mapref

Assume only thread 1 can update the reference. Is this code safe?



		
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             reply	other threads:[~2004-10-29 16:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-29 16:39 Ker Lutyn [this message]
2004-10-29 21:50 ` [Caml-list] " David Brown
2004-10-29 23:54   ` skaller
2004-10-30  0:32     ` David Brown
2004-10-30  1:07       ` skaller
2004-10-30  2:07         ` David Brown
2004-10-30  2:36           ` skaller

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