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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'.




  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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