From: ludo@gnu.org (Ludovic Courtès)
To: Neil Jerram <neil@ossau.uklinux.net>
Cc: guile-devel@gnu.org
Subject: Re: array handles and non-local exits
Date: Wed, 01 Jul 2009 10:37:15 +0200 [thread overview]
Message-ID: <87hbxw94uc.fsf@gnu.org> (raw)
In-Reply-To: <87tz1xjpko.fsf@arudy.ossau.uklinux.net> (Neil Jerram's message of "Tue, 30 Jun 2009 23:59:19 +0100")
Neil Jerram <neil@ossau.uklinux.net> writes:
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Not quite. If get/release are left as is (i.e., they do not establish a
>> dynwind context), I would write something along the lines of:
>>
>> You must take care to always unreserve an array after reserving it,
>> also in the presence of non-local exits. If a non-local exit can
>> happen between these two calls, you should install a dynwind context
>> that releases the array when it is left (see Dynamic Wind).
>>
>> In addition, array reserving and unreserving must be properly
>> paired. For instance, when reserving two or more arrays in a certain
>> order, you need to unreserve them in the opposite order.
>>
>> I would simply remove the following paragraph:
>>
>> These calls and other pairs of calls that establish dynwind contexts
>> need to be properly nested. If you begin a context prior to reserving
>> an array, you need to unreserve the array before ending the context.
>> Likewise, when reserving two or more arrays in a certain order, you
>> need to unreserve them in the opposite order.
>>
>> What do you think?
>
> Another loose end... I agree and have committed your suggested text
> to branch_release-1-8 and master.
Cool, thanks for going over all these loose ends! ;-)
Maybe 1.8.7 is approaching now?
Ludo'.
next prev parent reply other threads:[~2009-07-01 8:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-15 20:17 array handles and non-local exits Neil Jerram
2008-09-16 7:56 ` Ludovic Courtès
2008-09-17 19:32 ` Neil Jerram
2008-09-18 8:15 ` Ludovic Courtès
2008-09-18 9:17 ` Neil Jerram
2008-09-18 13:44 ` Ludovic Courtès
2009-06-30 22:59 ` Neil Jerram
2009-07-01 8:37 ` Ludovic Courtès [this message]
2009-07-01 22:04 ` Neil Jerram
2009-07-01 22:36 ` Ludovic Courtès
2009-07-02 23:33 ` Neil Jerram
2009-07-03 23:38 ` Neil Jerram
2009-07-04 19:28 ` Andy Wingo
2009-07-05 11:14 ` Ludovic Courtès
2009-07-06 14:09 ` Andy Wingo
2009-07-06 20:30 ` Ludovic Courtès
2009-07-09 19:19 ` Andy Wingo
2009-07-09 21:08 ` Ludovic Courtès
2009-07-10 10:27 ` Andy Wingo
2009-07-10 12:05 ` Ludovic Courtès
2009-07-19 20:04 ` Neil Jerram
2009-07-20 9:20 ` Ludovic Courtès
2009-07-23 21:20 ` Andy Wingo
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