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[object] Simplify reference_count_t

This commit is contained in:
Behdad Esfahbod 2020-06-29 03:48:38 -07:00
parent 4d116ed0f0
commit 2ec802b42a
1 changed files with 3 additions and 5 deletions
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8
src/hb-object.hh
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@ -140,9 +140,7 @@ struct hb_lockable_set_t
* Reference-count. * Reference-count.
*/ */
#define HB_REFERENCE_COUNT_INERT_VALUE 0 #define HB_REFERENCE_COUNT_INIT {HB_ATOMIC_INT_INIT (0)}
#define HB_REFERENCE_COUNT_POISON_VALUE -0x0000DEAD
#define HB_REFERENCE_COUNT_INIT {HB_ATOMIC_INT_INIT (HB_REFERENCE_COUNT_INERT_VALUE)}
struct hb_reference_count_t struct hb_reference_count_t
{ {
@ -152,9 +150,9 @@ struct hb_reference_count_t
int get_relaxed () const { return ref_count.get_relaxed (); } int get_relaxed () const { return ref_count.get_relaxed (); }
int inc () const { return ref_count.inc (); } int inc () const { return ref_count.inc (); }
int dec () const { return ref_count.dec (); } int dec () const { return ref_count.dec (); }
void fini () { ref_count.set_relaxed (HB_REFERENCE_COUNT_POISON_VALUE); } void fini () { ref_count.set_relaxed (-0x0000DEAD); }
bool is_inert () const { return ref_count.get_relaxed () == HB_REFERENCE_COUNT_INERT_VALUE; } bool is_inert () const { return !ref_count.get_relaxed (); }
bool is_valid () const { return ref_count.get_relaxed () > 0; } bool is_valid () const { return ref_count.get_relaxed () > 0; }
}; };