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Merge branch 'optimise_g_atomic_ref_count_dec' into 'master'

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grefcount: Optimise g_atomic_ref_count_dec

See merge request GNOME/glib!2098
This commit is contained in:
Philip Withnall 2021-05-11 11:00:26 +00:00
commit 4cd1a1c03d
1 changed files with 6 additions and 3 deletions
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glib/grefcount.c
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@ -262,10 +262,13 @@ void
gboolean gboolean
(g_atomic_ref_count_dec) (gatomicrefcount *arc) (g_atomic_ref_count_dec) (gatomicrefcount *arc)
{ {
g_return_val_if_fail (arc != NULL, FALSE); gint old_value;
g_return_val_if_fail (g_atomic_int_get (arc) > 0, FALSE);
return g_atomic_int_dec_and_test (arc); g_return_val_if_fail (arc != NULL, FALSE);
old_value = g_atomic_int_add (arc, -1);
g_return_val_if_fail (old_value > 0, FALSE);
return old_value == 1;
} }
/** /**