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* version 2 for more details ( a copy is included in the LICENSE file that
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#ifndef SHARE_GC_Z_ZHEAP_HPP
#define SHARE_GC_Z_ZHEAP_HPP
#include "gc/z/zAllocationFlags.hpp"
#include "gc/z/zArray.hpp"
#include "gc/z/zForwardingTable.hpp"
#include "gc/z/zMark.hpp"
#include "gc/z/zObjectAllocator.hpp"
#include "gc/z/zPageAllocator.hpp"
#include "gc/z/zPageTable.hpp"
#include "gc/z/zReferenceProcessor.hpp"
#include "gc/z/zRelocate.hpp"
#include "gc/z/zRelocationSet.hpp"
#include "gc/z/zWeakRootsProcessor.hpp"
#include "gc/z/zServiceability.hpp"
#include "gc/z/zUnload.hpp"
#include "gc/z/zWorkers.hpp"
class ThreadClosure;
class ZPage;
class ZRelocationSetSelector;
class ZHeap {
friend class VMStructs;
private :
static ZHeap* _heap;
ZWorkers _workers;
ZObjectAllocator _object_allocator;
ZPageAllocator _page_allocator;
ZPageTable _page_table;
ZForwardingTable _forwarding_table;
ZMark _mark;
ZReferenceProcessor _reference_processor;
ZWeakRootsProcessor _weak_roots_processor;
ZRelocate _relocate;
ZRelocationSet _relocation_set;
ZUnload _unload;
ZServiceability _serviceability;
void flip_to_marked();
void flip_to_remapped();
void free_empty_pages(ZRelocationSetSelector* selector, int bulk);
void out_of_memory();
public :
static ZHeap* heap();
ZHeap();
bool is_initialized() const ;
// Heap metrics
size_t min_capacity() const ;
size_t max_capacity() const ;
size_t soft_max_capacity() const ;
size_t capacity() const ;
size_t used() const ;
size_t unused() const ;
size_t tlab_capacity() const ;
size_t tlab_used() const ;
size_t max_tlab_size() const ;
size_t unsafe_max_tlab_alloc() const ;
bool is_in(uintptr_t addr) const ;
// Threads
uint active_workers() const ;
void set_active_workers(uint nworkers);
void threads_do(ThreadClosure* tc) const ;
// Reference processing
ReferenceDiscoverer* reference_discoverer();
void set_soft_reference_policy(bool clear);
// Non-strong reference processing
void process_non_strong_references();
// Page allocation
ZPage* alloc_page(uint8_t type, size_t size, ZAllocationFlags flags);
void undo_alloc_page(ZPage* page);
void free_page(ZPage* page, bool reclaimed);
void free_pages(const ZArray<ZPage*>* pages, bool reclaimed);
// Object allocation
uintptr_t alloc_tlab(size_t size);
uintptr_t alloc_object(size_t size);
uintptr_t alloc_object_for_relocation(size_t size);
void undo_alloc_object_for_relocation(uintptr_t addr, size_t size);
bool has_alloc_stalled() const ;
void check_out_of_memory();
// Marking
bool is_object_live(uintptr_t addr) const ;
bool is_object_strongly_live(uintptr_t addr) const ;
template <bool gc_thread, bool follow, bool finalizable, bool publish> void mark_object(uintptr_t addr);
void mark_start();
void mark(bool initial);
void mark_flush_and_free(Thread* thread);
bool mark_end();
void mark_free();
void keep_alive(oop obj);
// Relocation set
void select_relocation_set();
void reset_relocation_set();
// Relocation
void relocate_start();
uintptr_t relocate_object(uintptr_t addr);
uintptr_t remap_object(uintptr_t addr);
void relocate();
// Continuations
bool is_allocating(uintptr_t addr) const ;
// Iteration
void object_iterate(ObjectClosure* cl, bool visit_weaks);
ParallelObjectIteratorImpl* parallel_object_iterator(uint nworkers, bool visit_weaks);
void pages_do(ZPageClosure* cl);
// Serviceability
void serviceability_initialize();
GCMemoryManager* serviceability_cycle_memory_manager();
GCMemoryManager* serviceability_pause_memory_manager();
MemoryPool* serviceability_memory_pool();
ZServiceabilityCounters* serviceability_counters();
// Printing
void print_on(outputStream* st) const ;
void print_extended_on(outputStream* st) const ;
bool print_location(outputStream* st, uintptr_t addr) const ;
// Verification
bool is_oop(uintptr_t addr) const ;
void verify();
};
#endif // SHARE_GC_Z_ZHEAP_HPP
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