diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh index d678ae3692e..0dada492c94 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-object-private.hh @@ -33,23 +33,18 @@ #define HB_OBJECT_PRIVATE_HH #include "hb-private.hh" +#include "hb-debug.hh" #include "hb-atomic-private.hh" #include "hb-mutex-private.hh" -/* Debug */ - -#ifndef HB_DEBUG_OBJECT -#define HB_DEBUG_OBJECT (HB_DEBUG+0) -#endif - - /* reference_count */ -#define HB_REFERENCE_COUNT_INERT_VALUE -1 -#define HB_REFERENCE_COUNT_POISON_VALUE -0x0000DEAD -#define HB_REFERENCE_COUNT_INIT {HB_ATOMIC_INT_INIT(HB_REFERENCE_COUNT_INERT_VALUE)} +#define HB_REFERENCE_COUNT_UNCHANGABLE_VALUE -0x53043 +#define HB_REFERENCE_COUNT_UNREFFABLE_VALUE -0x07734 +#define HB_REFERENCE_COUNT_UNTOUCHABLE_VALUE -0xBEDAD +#define HB_REFERENCE_COUNT_INIT {HB_ATOMIC_INT_INIT (HB_REFERENCE_COUNT_UNCHANGABLE_VALUE)} struct hb_reference_count_t { @@ -59,9 +54,23 @@ struct hb_reference_count_t inline int get_unsafe (void) const { return ref_count.get_unsafe (); } inline int inc (void) { return ref_count.inc (); } inline int dec (void) { return ref_count.dec (); } - inline void finish (void) { ref_count.set_unsafe (HB_REFERENCE_COUNT_POISON_VALUE); } - - inline bool is_inert (void) const { return ref_count.get_unsafe () == HB_REFERENCE_COUNT_INERT_VALUE; } + inline void finish (void) { ref_count.set_unsafe (HB_REFERENCE_COUNT_UNTOUCHABLE_VALUE); } + + inline void make_inert (void) + { + if (get_unsafe () == HB_REFERENCE_COUNT_UNCHANGABLE_VALUE) + return; + ref_count.set_unsafe (HB_REFERENCE_COUNT_UNREFFABLE_VALUE); + } + inline void undo_inert (void) + { + if (get_unsafe () == HB_REFERENCE_COUNT_UNCHANGABLE_VALUE) + return; + assert (get_unsafe () == HB_REFERENCE_COUNT_UNREFFABLE_VALUE); + ref_count.set_unsafe (1); + } + + inline bool is_inert (void) const { return ref_count.get_unsafe () < 0; } inline bool is_valid (void) const { return ref_count.get_unsafe () > 0; } }; @@ -152,6 +161,16 @@ static inline bool hb_object_is_valid (const Type *obj) return likely (obj->header.ref_count.is_valid ()); } template <typename Type> +static inline void hb_object_make_inert (Type *obj) +{ + obj->header.ref_count.make_inert (); +} +template <typename Type> +static inline void hb_object_undo_inert (Type *obj) +{ + obj->header.ref_count.undo_inert (); +} +template <typename Type> static inline Type *hb_object_reference (Type *obj) { hb_object_trace (obj, HB_FUNC); |