Damien Lespiau f3879a4bdc Introduce g_object_notify_by_pspec()
g_object_notify_by_pspec() will emit the "notify" signal on the given
pspec, short-circuiting the hash table lookup needed by
g_object_notify(). The suggested and documented way of using
g_object_notify_by_pspec() is similar to the way of emitting signals
with their ID.

Emission tests (with no handler attached to the notify signal) show a
10-15% speedup over using g_object_notify().

https://bugzilla.gnome.org/show_bug.cgi?id=615425
2010-06-15 10:51:36 +01:00
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