Bug 2804

Summary:	Create an mmappable cache file for the mime data
Product:	shared-mime-info	Reporter:	Matthias Clasen <mclasen>
Component:	general	Assignee:	Jonathan Blandford <jrb>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	high
Version:	unspecified
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	the format the patch Update the spec to include the namespace list updated patch to update-mime-database combined patch

Description Matthias Clasen 2005-03-24 22:30:51 UTC

As things are currently, each app mallocs around 50k for the mime data. 
To make things worse, gtk and gnome-vfs have their own copies of the data.
We propose to define a binary cache format (in addition to the text files
which are currently created), and allow apps to mmap that.

I'll attach a proposal for such a cache format, and a patch which makes
update-mime-database generate these files.

Comment 1 Matthias Clasen 2005-03-24 22:31:49 UTC

Created attachment 2210 [details]
the format

Comment 2 Matthias Clasen 2005-03-24 22:34:54 UTC

Created attachment 2212 [details] [review]
the patch

Comment 3 Matthias Clasen 2005-03-24 22:36:15 UTC

See bug 2805 for the other half of this bug.

Comment 4 Matthias Clasen 2005-03-30 12:46:16 UTC

Created attachment 2260 [details]
Update the spec to include the namespace list

Comment 5 Matthias Clasen 2005-03-30 12:47:41 UTC

Created attachment 2261 [details] [review]
updated patch to update-mime-database

Comment 6 Matthias Clasen 2005-03-31 22:47:43 UTC

Created attachment 2281 [details] [review]
combined patch

The new patch is unchanged for update-mime-database.c
It patches the description of the cache file format into the spec 
now.

Comment 7 Jonathan Blandford 2005-04-01 12:31:48 UTC

Thanks matthias.  This is committed.

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