[Libreoffice] [PATCH] Possibly unused OTempFileService class

[Caolán McNamara]

On Sun, 2011-07-17 at 08:13 +0200, Francois Tigeot wrote:
> Hi,
> 
> It seems like OTempFileService, defined and implemented in
> libs-gui/unotools/source/ucbhelper is unused.
> 
> There's no mention of this name elsewhere in the tree, and LibreOffice
> builds and run fine without the files removed by the attached patch.
> One of the methods of this class is already in the list of unused functions.

I don't see any OTempFileService methods in the unused list ?

> Howewer, since it involves UNO, this code may be loaded at runtime by an
> obscure corner of the gui I'm not aware of.

unotools/util/utl.component registers that a component called
com.sun.star.io.comp.TempFile which provides the
com.sun.star.io.TempFile service is available in the unotools lib

Where an extra "utl" string is to be prefixed to the stock
component_getFactory entry point string to give an entry point of
utl_component_getFactory as the symbol which can be dlsymed and executed
with the component name ("com.sun.star.io.comp.TempFile") in order to
get one.

utl_component_getFactory then calls
OTempFileService::createServiceFactory_Static ->
XTempFile_createInstance -> XTempFile_createInstance and returns a 
OTempFileService.

So, its used by anything which asks for com.sun.star.io.TempFile e.g.
http://opengrok.libreoffice.org/xref/components/package/source/zippackage/ZipPackageStream.cxx#188
where that ..->createInstance("com.sun.star.io.TempFile") call should
get mapped to an appropiate call to utl_component_getFactory to
basically get a OTempFileService back.

C.