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Merge branch 'more-atomic-ops' into 'main'

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Use atomic exchange operations more

See merge request GNOME/glib!2759
This commit is contained in:
Philip Withnall
2022-07-23 11:35:08 +00:00
parent 5094c342d1 00f3f0d407
commit 55928d6ac0
7 changed files with 420 additions and 16 deletions
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11
gobject/gatomicarray.c
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@@ -163,11 +163,18 @@ _g_atomic_array_update (GAtomicArray *array,
guint8 *old;
G_LOCK (array);
old = g_atomic_pointer_get (&array->data);
old = g_atomic_pointer_exchange (&array->data, new_data);
#ifdef G_DISABLE_ASSERT
if (old && G_ATOMIC_ARRAY_DATA_SIZE (new_data) < G_ATOMIC_ARRAY_DATA_SIZE (old))
{
g_atomic_pointer_set (&array->data, old);
g_return_if_reached ();
}
#else
g_assert (old == NULL || G_ATOMIC_ARRAY_DATA_SIZE (old) <= G_ATOMIC_ARRAY_DATA_SIZE (new_data));
#endif
g_atomic_pointer_set (&array->data, new_data);
if (old)
freelist_free (old);
G_UNLOCK (array);