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gclosure: Rename ClosureInt helper union

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This introduces no functional changes, but will make upcoming commits a
little cleaner.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
This commit is contained in:
Philip Withnall
2025-04-04 00:58:24 +01:00
parent 148c1ed891
commit b9a5a465a7
1 changed files with 14 additions and 11 deletions
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25
gobject/gclosure.c
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@@ -103,23 +103,26 @@
typedef union {
GClosure closure;
gint vint;
} ClosureInt;
int atomic_int;
} GClosureFlags;
G_STATIC_ASSERT (sizeof (GClosureFlags) == sizeof (GClosure));
G_STATIC_ASSERT (G_ALIGNOF (GClosureFlags) == G_ALIGNOF (GClosure));
#define ATOMIC_CHANGE_FIELD(_closure, _field, _OP, _value, _must_set, _SET_OLD, _SET_NEW) \
G_STMT_START { \
ClosureInt *cunion = (ClosureInt*) _closure; \
GClosureFlags *cunion = (GClosureFlags *) _closure; \
gint new_int, old_int, success; \
old_int = g_atomic_int_get (&cunion->vint); \
old_int = g_atomic_int_get (&cunion->atomic_int); \
do \
{ \
ClosureInt tmp; \
tmp.vint = old_int; \
_SET_OLD tmp.closure._field; \
tmp.closure._field _OP _value; \
_SET_NEW tmp.closure._field; \
new_int = tmp.vint; \
success = g_atomic_int_compare_and_exchange_full (&cunion->vint, old_int, new_int,\
GClosureFlags tmp; \
tmp.atomic_int = old_int; \
_SET_OLD tmp.closure._field; \
tmp.closure._field _OP _value; \
_SET_NEW tmp.closure._field; \
new_int = tmp.atomic_int; \
success = g_atomic_int_compare_and_exchange_full (&cunion->atomic_int, old_int, new_int, \
&old_int); \
} \
while (!success && _must_set); \