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shared: add nm_g_object_ref_set_take() helper macro

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Thomas Haller 2020-07-20 15:17:36 +02:00
parent ace515e697
commit 97770bc7a8
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1 changed files with 20 additions and 0 deletions
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20
shared/nm-glib-aux/nm-macros-internal.h
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@ -825,6 +825,26 @@ nm_g_object_unref (gpointer obj)
_changed; \
})
#define nm_g_object_ref_set_take(pp, obj) \
({ \
typeof (*(pp)) *const _pp = (pp); \
typeof (*_pp) const _obj = (obj); \
typeof (*_pp) _p; \
gboolean _changed = FALSE; \
\
nm_assert (!_pp || !*_pp || G_IS_OBJECT (*_pp)); \
nm_assert (!_obj || G_IS_OBJECT (_obj)); \
\
if ( _pp \
&& ((_p = *_pp) != _obj)) { \
*_pp = _obj; \
nm_g_object_unref (_p); \
_changed = TRUE; \
} else \
nm_g_object_unref (_obj); \
_changed; \
})
/* basically, replaces
* g_clear_pointer (&location, g_free)
* with