Rami Ylimäki 29d63ba175 xkb: Introduce helper function to handle similar reallocations. ...

This is preparation for a memory leak fix and doesn't contain any
functional changes.

Note that two variables are generally used for reallocation and
clearing of arrays: geom->sz_elems (reallocation) and geom->num_elems
(clearing). The interface of XkbGeomRealloc is deliberately kept
simple and it only accepts geom->sz_elems as argument, because that is
needed to determine whether the array needs to be resized. When the
array is cleared, we just assume that either geom->sz_elems and
geom->num_elems are synchronized to be equal or that unused elements
are cleared whenever geom->num_elems is set to be less than
geom->sz_elems without reallocation.

Reviewed-by: Erkki Seppälä <erkki.seppala@vincit.fi>
Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2011-04-04 09:55:04 +10:00

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