30 typedef bool (*ZBarrierFastPath)(uintptr_t);

    30 typedef bool (*ZBarrierFastPath)(uintptr_t);

    31 typedef uintptr_t (*ZBarrierSlowPath)(uintptr_t);

    31 typedef uintptr_t (*ZBarrierSlowPath)(uintptr_t);

    32 

    32 

    33 class ZBarrier : public AllStatic {

    33 class ZBarrier : public AllStatic {

    34 private:

    34 private:

    35   static const bool Strong      = false;

    38   static const bool Strong      = false;

    36   static const bool Finalizable = true;

    39   static const bool Finalizable = true;

    37 

    40 

    38   static const bool Publish     = true;

    41   static const bool Publish     = true;

    39   static const bool Overflow    = false;

    42   static const bool Overflow    = false;

    49   static bool is_resurrection_blocked(volatile oop* p, oop* o);

    52   static bool is_resurrection_blocked(volatile oop* p, oop* o);

    50 

    53 

    51   static bool during_mark();

    54   static bool during_mark();

    52   static bool during_relocate();

    55   static bool during_relocate();

    53   template <bool finalizable> static bool should_mark_through(uintptr_t addr);

    56   template <bool finalizable> static bool should_mark_through(uintptr_t addr);

    55   static uintptr_t remap(uintptr_t addr);

    58   static uintptr_t remap(uintptr_t addr);

    56   static uintptr_t relocate(uintptr_t addr);

    59   static uintptr_t relocate(uintptr_t addr);

    57   static uintptr_t relocate_or_mark(uintptr_t addr);

    60   static uintptr_t relocate_or_mark(uintptr_t addr);

    58   static uintptr_t relocate_or_remap(uintptr_t addr);

    61   static uintptr_t relocate_or_remap(uintptr_t addr);

    59 

    62 

    67   static uintptr_t keep_alive_barrier_on_phantom_oop_slow_path(uintptr_t addr);

    70   static uintptr_t keep_alive_barrier_on_phantom_oop_slow_path(uintptr_t addr);

    68 

    71 

    69   static uintptr_t mark_barrier_on_oop_slow_path(uintptr_t addr);

    72   static uintptr_t mark_barrier_on_oop_slow_path(uintptr_t addr);

    70   static uintptr_t mark_barrier_on_finalizable_oop_slow_path(uintptr_t addr);

    73   static uintptr_t mark_barrier_on_finalizable_oop_slow_path(uintptr_t addr);

    71   static uintptr_t mark_barrier_on_root_oop_slow_path(uintptr_t addr);

    74   static uintptr_t mark_barrier_on_root_oop_slow_path(uintptr_t addr);

    72 

    76 

    73   static uintptr_t relocate_barrier_on_root_oop_slow_path(uintptr_t addr);

    77   static uintptr_t relocate_barrier_on_root_oop_slow_path(uintptr_t addr);

    74 

    78 

    75 public:

    79 public:

    76   // Load barrier

    80   // Load barrier

   104 

   108 

   105   // Mark barrier

   109   // Mark barrier

   106   static void mark_barrier_on_oop_field(volatile oop* p, bool finalizable);

   110   static void mark_barrier_on_oop_field(volatile oop* p, bool finalizable);

   107   static void mark_barrier_on_oop_array(volatile oop* p, size_t length, bool finalizable);

   111   static void mark_barrier_on_oop_array(volatile oop* p, size_t length, bool finalizable);

   108   static void mark_barrier_on_root_oop_field(oop* p);

   112   static void mark_barrier_on_root_oop_field(oop* p);

   109 

   114 

   110   // Relocate barrier

   115   // Relocate barrier

   111   static void relocate_barrier_on_root_oop_field(oop* p);

   116   static void relocate_barrier_on_root_oop_field(oop* p);

   112 

   117 

   113   // Narrow oop variants, never used.

   118   // Narrow oop variants, never used.