From: Han-Wen Nienhuys <hanwen@cs.uu.nl>
Cc: guile-devel@gnu.org
Subject: Re: port initialization?
Date: Thu, 8 Aug 2002 21:35:43 +0200 [thread overview]
Message-ID: <15698.51215.103077.669940@blauw.xs4all.nl> (raw)
In-Reply-To: <ljeld9s1a7.fsf@burns.dt.e-technik.uni-dortmund.de>
marius.vollmer@uni-dortmund.de writes:
>> z = scm_cell (scm_tc16_strport, 0);
>> This looks like fishy code to me. When scm_add_to_port_table triggers
>> GC then it will see the (scm_tc16_strport, 0) cell, which is (or
>> should be) invalid.
>
>Yes, but the GC will not notice since "z" still refers to it and
>therefore the port cell wont be freedo
That's not what I meant: z is a heap cell containing a null
pointer. GC-ing it will dump core.
> > SCM port = scm_cell (scm_tc16_port, newport);
> > newport->port = port;
> > ..
> > }
> /
> This will leak newport when the call to scm_cell throws.
scm_cell throws, what do you mean?
--
Han-Wen Nienhuys | hanwen@cs.uu.nl | http://www.cs.uu.nl/~hanwen
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next prev parent reply other threads:[~2002-08-08 19:35 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-04 14:42 port initialization? Han-Wen
2002-08-08 17:33 ` Marius Vollmer
2002-08-08 19:35 ` Han-Wen Nienhuys [this message]
2002-08-08 20:31 ` Marius Vollmer
2002-08-08 20:54 ` Han-Wen Nienhuys
2002-08-08 21:14 ` Marius Vollmer
2002-08-08 23:17 ` Han-Wen Nienhuys
2002-08-10 13:30 ` Marius Vollmer
2002-08-16 22:06 ` Han-Wen Nienhuys
2002-08-17 0:21 ` Marius Vollmer
2002-08-08 23:20 ` Lynn Winebarger
2002-08-09 8:06 ` Han-Wen Nienhuys
2002-08-10 13:33 ` Marius Vollmer
2002-08-10 14:12 ` Lynn Winebarger
2002-08-11 15:57 ` Marius Vollmer
2002-08-08 19:37 ` Han-Wen Nienhuys
2002-08-08 20:32 ` Marius Vollmer
2002-08-08 23:07 ` Han-Wen Nienhuys
2002-08-10 13:09 ` Marius Vollmer
2002-08-16 22:06 ` Han-Wen Nienhuys
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