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From: Kenichi Handa <handa@m17n.org>
To: emacs-devel@gnu.org
Subject: Re: Memory leak in keyboard variables?
Date: Mon, 15 Dec 2008 10:26:05 +0900	[thread overview]
Message-ID: <E1LC2Dl-0001R1-VC@etlken.m17n.org> (raw)

> One thing I noticed is the xftfont_open is run whenever we
> call "emacsclient -c", but xftfont_close is never called.
> It appears that font_open_entity is called to allocate a
> font object, it is in general not recorded anywhere.

No.  A font object is recorded in FONT_OBJLIST_INDEX of a
font-entity.

> Could this be part of the problem?

The strategy is to record all font-objects in font-entities, and
record all font-entities in a cache of each font-backend.  The caches
are freed when `delete-frame' calls font_update_drivers with
new_drivers as nil through this calling sequence.

font_update_drivers -> font_finish_cache -> font_clear_cache

At that time all font-entities and font-obects are freed.

If there's a memory leak for font objectes, it means that there is a
bug at some code implementing the above strategy.

I don't have a time to tackle this problem at the moment,
but I'll take care of it as soon as possible.

---
Kenichi Handa
handa@m17n.org




             reply	other threads:[~2008-12-15  1:26 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-15  1:26 Kenichi Handa [this message]
2008-12-15  3:16 ` Memory leak in keyboard variables? Chong Yidong
2008-12-15  4:06   ` image cache (was: Memory leak in keyboard variables?) Stefan Monnier
2008-12-15  4:12     ` Eli Zaretskii
2008-12-15 15:19       ` image cache Stefan Monnier
2008-12-15 16:08         ` Chong Yidong
2008-12-15 20:09           ` Stefan Monnier
2008-12-16  1:41           ` Miles Bader
2008-12-16  4:56             ` Chetan Pandya
2008-12-16  7:02               ` Chetan Pandya
2008-12-16  4:31   ` Memory leak in keyboard variables? Kenichi Handa
  -- strict thread matches above, loose matches on Subject: below --
2008-12-16  2:14 Chetan Pandya
2008-12-16  3:33 ` Chong Yidong
2008-12-11  3:03 Chong Yidong
2008-12-11  9:30 ` Andreas Schwab
2008-12-11 15:09   ` Chong Yidong
2008-12-11 20:43     ` Chong Yidong
2008-12-13 14:19       ` Markus Triska
2008-12-13 19:09         ` Chong Yidong
2008-12-16 14:11         ` Chong Yidong
2008-12-17  4:40           ` Stephen J. Turnbull
2008-12-20  1:50             ` Chong Yidong
2008-12-20 15:34               ` Jan Djärv
2008-12-20 17:09                 ` Markus Triska
2008-12-20 17:45                 ` Dan Nicolaescu
2008-12-20 18:37                   ` Dan Nicolaescu
2008-12-20 20:41                 ` Chong Yidong
2008-12-11 15:59 ` Stefan Monnier

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