8299879: CollectedHeap hierarchy should use override
Reviewed-by: stefank, tschatzl
This commit is contained in:
Erik Österlund
parent
98d75f1879
commit
a734285314
@ -1,4 +1,5 @@
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/*
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* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2017, 2022, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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@ -56,89 +57,89 @@ public:
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_memory_manager("Epsilon Heap", ""),
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_space(NULL) {};
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virtual Name kind() const {
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Name kind() const override {
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return CollectedHeap::Epsilon;
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}
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virtual const char* name() const {
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const char* name() const override {
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return "Epsilon";
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}
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virtual SoftRefPolicy* soft_ref_policy() {
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SoftRefPolicy* soft_ref_policy() override {
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return &_soft_ref_policy;
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}
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virtual jint initialize();
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virtual void initialize_serviceability();
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jint initialize() override;
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void initialize_serviceability() override;
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virtual GrowableArray<GCMemoryManager*> memory_managers();
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virtual GrowableArray<MemoryPool*> memory_pools();
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GrowableArray<GCMemoryManager*> memory_managers() override;
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GrowableArray<MemoryPool*> memory_pools() override;
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virtual size_t max_capacity() const { return _virtual_space.reserved_size(); }
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virtual size_t capacity() const { return _virtual_space.committed_size(); }
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virtual size_t used() const { return _space->used(); }
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size_t max_capacity() const override { return _virtual_space.reserved_size(); }
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size_t capacity() const override { return _virtual_space.committed_size(); }
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size_t used() const override { return _space->used(); }
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virtual bool is_in(const void* p) const {
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bool is_in(const void* p) const override {
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return _space->is_in(p);
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}
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virtual bool requires_barriers(stackChunkOop obj) const { return false; }
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bool requires_barriers(stackChunkOop obj) const override { return false; }
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virtual bool is_maximal_no_gc() const {
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bool is_maximal_no_gc() const override {
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// No GC is going to happen. Return "we are at max", when we are about to fail.
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return used() == capacity();
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}
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// Allocation
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HeapWord* allocate_work(size_t size, bool verbose = true);
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virtual HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded);
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virtual HeapWord* allocate_new_tlab(size_t min_size,
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size_t requested_size,
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size_t* actual_size);
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HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded) override;
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HeapWord* allocate_new_tlab(size_t min_size,
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size_t requested_size,
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size_t* actual_size) override;
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// TLAB allocation
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virtual size_t tlab_capacity(Thread* thr) const { return capacity(); }
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virtual size_t tlab_used(Thread* thr) const { return used(); }
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virtual size_t max_tlab_size() const { return _max_tlab_size; }
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virtual size_t unsafe_max_tlab_alloc(Thread* thr) const;
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size_t tlab_capacity(Thread* thr) const override { return capacity(); }
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size_t tlab_used(Thread* thr) const override { return used(); }
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size_t max_tlab_size() const override { return _max_tlab_size; }
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size_t unsafe_max_tlab_alloc(Thread* thr) const override;
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virtual void collect(GCCause::Cause cause);
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virtual void do_full_collection(bool clear_all_soft_refs);
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void collect(GCCause::Cause cause) override;
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void do_full_collection(bool clear_all_soft_refs) override;
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// Heap walking support
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virtual void object_iterate(ObjectClosure* cl);
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void object_iterate(ObjectClosure* cl) override;
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// Object pinning support: every object is implicitly pinned
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virtual bool supports_object_pinning() const { return true; }
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virtual oop pin_object(JavaThread* thread, oop obj) { return obj; }
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virtual void unpin_object(JavaThread* thread, oop obj) { }
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bool supports_object_pinning() const override { return true; }
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oop pin_object(JavaThread* thread, oop obj) override { return obj; }
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void unpin_object(JavaThread* thread, oop obj) override { }
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// No support for block parsing.
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HeapWord* block_start(const void* addr) const { return NULL; }
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bool block_is_obj(const HeapWord* addr) const { return false; }
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// No GC threads
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virtual void gc_threads_do(ThreadClosure* tc) const {}
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void gc_threads_do(ThreadClosure* tc) const override {}
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// No nmethod handling
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virtual void register_nmethod(nmethod* nm) {}
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virtual void unregister_nmethod(nmethod* nm) {}
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virtual void verify_nmethod(nmethod* nm) {}
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void register_nmethod(nmethod* nm) override {}
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void unregister_nmethod(nmethod* nm) override {}
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void verify_nmethod(nmethod* nm) override {}
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// No heap verification
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virtual void prepare_for_verify() {}
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virtual void verify(VerifyOption option) {}
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void prepare_for_verify() override {}
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void verify(VerifyOption option) override {}
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MemRegion reserved_region() const { return _reserved; }
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bool is_in_reserved(const void* addr) const { return _reserved.contains(addr); }
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// Support for loading objects from CDS archive into the heap
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virtual bool can_load_archived_objects() const { return UseCompressedOops; }
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virtual HeapWord* allocate_loaded_archive_space(size_t size);
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bool can_load_archived_objects() const override { return UseCompressedOops; }
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HeapWord* allocate_loaded_archive_space(size_t size) override;
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virtual void print_on(outputStream* st) const;
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virtual void print_tracing_info() const;
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virtual bool print_location(outputStream* st, void* addr) const;
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void print_on(outputStream* st) const override;
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void print_tracing_info() const override;
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bool print_location(outputStream* st, void* addr) const override;
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private:
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void print_heap_info(size_t used) const;
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2001, 2022, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2001, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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@ -93,17 +93,17 @@ class ParallelScavengeHeap : public CollectedHeap {
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WorkerThreads _workers;
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virtual void initialize_serviceability();
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void initialize_serviceability() override;
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void trace_actual_reserved_page_size(const size_t reserved_heap_size, const ReservedSpace rs);
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void trace_heap(GCWhen::Type when, const GCTracer* tracer);
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void trace_heap(GCWhen::Type when, const GCTracer* tracer) override;
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// Allocate in oldgen and record the allocation with the size_policy.
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HeapWord* allocate_old_gen_and_record(size_t word_size);
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protected:
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static inline size_t total_invocations();
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HeapWord* allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size);
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HeapWord* allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size) override;
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inline bool should_alloc_in_eden(size_t size) const;
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inline void death_march_check(HeapWord* const result, size_t size);
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@ -126,23 +126,23 @@ class ParallelScavengeHeap : public CollectedHeap {
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MarkSweep
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};
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virtual Name kind() const {
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Name kind() const override {
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return CollectedHeap::Parallel;
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}
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virtual const char* name() const {
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const char* name() const override {
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return "Parallel";
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}
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virtual SoftRefPolicy* soft_ref_policy() { return &_soft_ref_policy; }
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SoftRefPolicy* soft_ref_policy() override { return &_soft_ref_policy; }
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virtual GrowableArray<GCMemoryManager*> memory_managers();
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virtual GrowableArray<MemoryPool*> memory_pools();
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GrowableArray<GCMemoryManager*> memory_managers() override;
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GrowableArray<MemoryPool*> memory_pools() override;
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static PSYoungGen* young_gen() { return _young_gen; }
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static PSOldGen* old_gen() { return _old_gen; }
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virtual PSAdaptiveSizePolicy* size_policy() { return _size_policy; }
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PSAdaptiveSizePolicy* size_policy() { return _size_policy; }
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static PSGCAdaptivePolicyCounters* gc_policy_counters() { return _gc_policy_counters; }
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@ -154,38 +154,38 @@ class ParallelScavengeHeap : public CollectedHeap {
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PSCardTable* card_table();
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// Returns JNI_OK on success
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virtual jint initialize();
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jint initialize() override;
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virtual void safepoint_synchronize_begin();
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virtual void safepoint_synchronize_end();
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void safepoint_synchronize_begin() override;
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void safepoint_synchronize_end() override;
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void post_initialize();
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void post_initialize() override;
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void update_counters();
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size_t capacity() const;
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size_t used() const;
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size_t capacity() const override;
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size_t used() const override;
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// Return "true" if all generations have reached the
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// maximal committed limit that they can reach, without a garbage
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// collection.
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virtual bool is_maximal_no_gc() const;
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bool is_maximal_no_gc() const override;
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virtual void register_nmethod(nmethod* nm);
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virtual void unregister_nmethod(nmethod* nm);
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virtual void verify_nmethod(nmethod* nm);
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void register_nmethod(nmethod* nm) override;
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void unregister_nmethod(nmethod* nm) override;
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void verify_nmethod(nmethod* nm) override;
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void prune_scavengable_nmethods();
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size_t max_capacity() const;
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size_t max_capacity() const override;
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// Whether p is in the allocated part of the heap
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bool is_in(const void* p) const;
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bool is_in(const void* p) const override;
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bool is_in_reserved(const void* p) const;
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bool is_in_young(const void* p) const;
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virtual bool requires_barriers(stackChunkOop obj) const;
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bool requires_barriers(stackChunkOop obj) const override;
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MemRegion reserved_region() const { return _reserved; }
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HeapWord* base() const { return _reserved.start(); }
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@ -195,7 +195,7 @@ class ParallelScavengeHeap : public CollectedHeap {
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// an excessive amount of time is being spent doing collections
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// and caused a NULL to be returned. If a NULL is not returned,
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// "gc_time_limit_was_exceeded" has an undefined meaning.
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HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded);
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HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded) override;
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// Allocation attempt(s) during a safepoint. It should never be called
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// to allocate a new TLAB as this allocation might be satisfied out
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@ -203,7 +203,7 @@ class ParallelScavengeHeap : public CollectedHeap {
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HeapWord* failed_mem_allocate(size_t size);
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// Support for System.gc()
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void collect(GCCause::Cause cause);
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void collect(GCCause::Cause cause) override;
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// These also should be called by the vm thread at a safepoint (e.g., from a
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// VM operation).
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@ -215,38 +215,38 @@ class ParallelScavengeHeap : public CollectedHeap {
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inline void invoke_scavenge();
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// Perform a full collection
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virtual void do_full_collection(bool clear_all_soft_refs);
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void do_full_collection(bool clear_all_soft_refs) override;
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void ensure_parsability(bool retire_tlabs);
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void resize_all_tlabs();
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void ensure_parsability(bool retire_tlabs) override;
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void resize_all_tlabs() override;
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size_t tlab_capacity(Thread* thr) const;
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size_t tlab_used(Thread* thr) const;
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size_t unsafe_max_tlab_alloc(Thread* thr) const;
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size_t tlab_capacity(Thread* thr) const override;
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size_t tlab_used(Thread* thr) const override;
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size_t unsafe_max_tlab_alloc(Thread* thr) const override;
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void object_iterate(ObjectClosure* cl);
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void object_iterate(ObjectClosure* cl) override;
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void object_iterate_parallel(ObjectClosure* cl, HeapBlockClaimer* claimer);
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virtual ParallelObjectIteratorImpl* parallel_object_iterator(uint thread_num);
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ParallelObjectIteratorImpl* parallel_object_iterator(uint thread_num) override;
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HeapWord* block_start(const void* addr) const;
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bool block_is_obj(const HeapWord* addr) const;
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void prepare_for_verify();
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void prepare_for_verify() override;
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PSHeapSummary create_ps_heap_summary();
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virtual void print_on(outputStream* st) const;
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virtual void print_on_error(outputStream* st) const;
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virtual void gc_threads_do(ThreadClosure* tc) const;
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virtual void print_tracing_info() const;
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void print_on(outputStream* st) const override;
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void print_on_error(outputStream* st) const override;
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void gc_threads_do(ThreadClosure* tc) const override;
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void print_tracing_info() const override;
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virtual WorkerThreads* safepoint_workers() { return &_workers; }
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WorkerThreads* safepoint_workers() override { return &_workers; }
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PreGenGCValues get_pre_gc_values() const;
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void print_heap_change(const PreGenGCValues& pre_gc_values) const;
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// Used to print information about locations in the hs_err file.
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virtual bool print_location(outputStream* st, void* addr) const;
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bool print_location(outputStream* st, void* addr) const override;
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void verify(VerifyOption option /* ignored */);
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void verify(VerifyOption option /* ignored */) override;
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// Resize the young generation. The reserved space for the
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// generation may be expanded in preparation for the resize.
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@ -270,9 +270,9 @@ class ParallelScavengeHeap : public CollectedHeap {
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}
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// Support for loading objects from CDS archive into the heap
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bool can_load_archived_objects() const { return UseCompressedOops; }
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HeapWord* allocate_loaded_archive_space(size_t size);
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void complete_loaded_archive_space(MemRegion archive_space);
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bool can_load_archived_objects() const override { return UseCompressedOops; }
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HeapWord* allocate_loaded_archive_space(size_t size) override;
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void complete_loaded_archive_space(MemRegion archive_space) override;
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};
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// Class that can be used to print information about the
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2017, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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@ -61,23 +61,23 @@ private:
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MemoryPool* _survivor_pool;
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MemoryPool* _old_pool;
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virtual void initialize_serviceability();
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void initialize_serviceability() override;
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public:
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static SerialHeap* heap();
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SerialHeap();
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virtual Name kind() const {
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Name kind() const override {
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return CollectedHeap::Serial;
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}
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virtual const char* name() const {
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const char* name() const override {
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return "Serial";
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}
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virtual GrowableArray<GCMemoryManager*> memory_managers();
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virtual GrowableArray<MemoryPool*> memory_pools();
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GrowableArray<GCMemoryManager*> memory_managers() override;
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GrowableArray<MemoryPool*> memory_pools() override;
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DefNewGeneration* young_gen() const {
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assert(_young_gen->kind() == Generation::DefNew, "Wrong generation type");
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@ -101,13 +101,13 @@ public:
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OopIterateClosure* old_gen_closure,
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CLDClosure* cld_closure);
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virtual void safepoint_synchronize_begin();
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virtual void safepoint_synchronize_end();
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void safepoint_synchronize_begin() override;
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void safepoint_synchronize_end() override;
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// Support for loading objects from CDS archive into the heap
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bool can_load_archived_objects() const { return UseCompressedOops; }
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HeapWord* allocate_loaded_archive_space(size_t size);
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void complete_loaded_archive_space(MemRegion archive_space);
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bool can_load_archived_objects() const override { return UseCompressedOops; }
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HeapWord* allocate_loaded_archive_space(size_t size) override;
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void complete_loaded_archive_space(MemRegion archive_space) override;
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};
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#endif // SHARE_GC_SERIAL_SERIALHEAP_HPP
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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@ -125,7 +125,7 @@ protected:
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// Callback from VM_GenCollectFull operation.
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// Perform a full collection of the first max_level+1 generations.
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virtual void do_full_collection(bool clear_all_soft_refs);
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void do_full_collection(bool clear_all_soft_refs) override;
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void do_full_collection(bool clear_all_soft_refs, GenerationType max_generation);
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// Does the "cause" of GC indicate that
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@ -139,7 +139,7 @@ protected:
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public:
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// Returns JNI_OK on success
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virtual jint initialize();
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jint initialize() override;
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virtual CardTableRS* create_rem_set(const MemRegion& reserved_region);
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void initialize_size_policy(size_t init_eden_size,
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@ -147,7 +147,7 @@ public:
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size_t init_survivor_size);
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// Does operations required after initialization has been done.
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void post_initialize();
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void post_initialize() override;
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Generation* young_gen() const { return _young_gen; }
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Generation* old_gen() const { return _old_gen; }
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@ -161,7 +161,7 @@ public:
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GenerationSpec* young_gen_spec() const;
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GenerationSpec* old_gen_spec() const;
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|
||||
virtual SoftRefPolicy* soft_ref_policy() { return &_soft_ref_gen_policy; }
|
||||
SoftRefPolicy* soft_ref_policy() override { return &_soft_ref_gen_policy; }
|
||||
|
||||
// Adaptive size policy
|
||||
virtual AdaptiveSizePolicy* size_policy() {
|
||||
@ -171,47 +171,47 @@ public:
|
||||
// Performance Counter support
|
||||
GCPolicyCounters* counters() { return _gc_policy_counters; }
|
||||
|
||||
size_t capacity() const;
|
||||
size_t used() const;
|
||||
size_t capacity() const override;
|
||||
size_t used() const override;
|
||||
|
||||
// Save the "used_region" for both generations.
|
||||
void save_used_regions();
|
||||
|
||||
size_t max_capacity() const;
|
||||
size_t max_capacity() const override;
|
||||
|
||||
HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded);
|
||||
HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded) override;
|
||||
|
||||
// Perform a full collection of the heap; intended for use in implementing
|
||||
// "System.gc". This implies as full a collection as the CollectedHeap
|
||||
// supports. Caller does not hold the Heap_lock on entry.
|
||||
virtual void collect(GCCause::Cause cause);
|
||||
void collect(GCCause::Cause cause) override;
|
||||
|
||||
// Returns "TRUE" iff "p" points into the committed areas of the heap.
|
||||
// The methods is_in() and is_in_youngest() may be expensive to compute
|
||||
// in general, so, to prevent their inadvertent use in product jvm's, we
|
||||
// restrict their use to assertion checking or verification only.
|
||||
bool is_in(const void* p) const;
|
||||
bool is_in(const void* p) const override;
|
||||
|
||||
// Returns true if p points into the reserved space for the young generation.
|
||||
// Assumes the young gen address range is less than that of the old gen.
|
||||
bool is_in_young(const void* p) const;
|
||||
|
||||
virtual bool requires_barriers(stackChunkOop obj) const;
|
||||
bool requires_barriers(stackChunkOop obj) const override;
|
||||
|
||||
#ifdef ASSERT
|
||||
bool is_in_partial_collection(const void* p);
|
||||
#endif
|
||||
|
||||
// Optimized nmethod scanning support routines
|
||||
virtual void register_nmethod(nmethod* nm);
|
||||
virtual void unregister_nmethod(nmethod* nm);
|
||||
virtual void verify_nmethod(nmethod* nm);
|
||||
void register_nmethod(nmethod* nm) override;
|
||||
void unregister_nmethod(nmethod* nm) override;
|
||||
void verify_nmethod(nmethod* nm) override;
|
||||
|
||||
void prune_scavengable_nmethods();
|
||||
|
||||
// Iteration functions.
|
||||
void oop_iterate(OopIterateClosure* cl);
|
||||
void object_iterate(ObjectClosure* cl);
|
||||
void object_iterate(ObjectClosure* cl) override;
|
||||
Space* space_containing(const void* addr) const;
|
||||
|
||||
// A CollectedHeap is divided into a dense sequence of "blocks"; that is,
|
||||
@ -236,12 +236,12 @@ public:
|
||||
bool block_is_obj(const HeapWord* addr) const;
|
||||
|
||||
// Section on TLAB's.
|
||||
virtual size_t tlab_capacity(Thread* thr) const;
|
||||
virtual size_t tlab_used(Thread* thr) const;
|
||||
virtual size_t unsafe_max_tlab_alloc(Thread* thr) const;
|
||||
virtual HeapWord* allocate_new_tlab(size_t min_size,
|
||||
size_t requested_size,
|
||||
size_t* actual_size);
|
||||
size_t tlab_capacity(Thread* thr) const override;
|
||||
size_t tlab_used(Thread* thr) const override;
|
||||
size_t unsafe_max_tlab_alloc(Thread* thr) const override;
|
||||
HeapWord* allocate_new_tlab(size_t min_size,
|
||||
size_t requested_size,
|
||||
size_t* actual_size) override;
|
||||
|
||||
// The "requestor" generation is performing some garbage collection
|
||||
// action for which it would be useful to have scratch space. The
|
||||
@ -254,8 +254,8 @@ public:
|
||||
// contributed as it needs.
|
||||
void release_scratch();
|
||||
|
||||
// Ensure parsability: override
|
||||
virtual void ensure_parsability(bool retire_tlabs);
|
||||
// Ensure parsability
|
||||
void ensure_parsability(bool retire_tlabs) override;
|
||||
|
||||
// Total number of full collections completed.
|
||||
unsigned int total_full_collections_completed() {
|
||||
@ -274,19 +274,15 @@ public:
|
||||
|
||||
bool no_gc_in_progress() { return !is_gc_active(); }
|
||||
|
||||
// Override.
|
||||
void prepare_for_verify();
|
||||
void prepare_for_verify() override;
|
||||
void verify(VerifyOption option) override;
|
||||
|
||||
// Override.
|
||||
void verify(VerifyOption option);
|
||||
|
||||
// Override.
|
||||
virtual void print_on(outputStream* st) const;
|
||||
virtual void gc_threads_do(ThreadClosure* tc) const;
|
||||
virtual void print_tracing_info() const;
|
||||
void print_on(outputStream* st) const override;
|
||||
void gc_threads_do(ThreadClosure* tc) const override;
|
||||
void print_tracing_info() const override;
|
||||
|
||||
// Used to print information about locations in the hs_err file.
|
||||
virtual bool print_location(outputStream* st, void* addr) const;
|
||||
bool print_location(outputStream* st, void* addr) const override;
|
||||
|
||||
void print_heap_change(const PreGenGCValues& pre_gc_values) const;
|
||||
|
||||
@ -306,7 +302,7 @@ public:
|
||||
// Return "true" if all generations have reached the
|
||||
// maximal committed limit that they can reach, without a garbage
|
||||
// collection.
|
||||
virtual bool is_maximal_no_gc() const;
|
||||
virtual bool is_maximal_no_gc() const override;
|
||||
|
||||
// This function returns the CardTableRS object that allows us to scan
|
||||
// generations in a fully generational heap.
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
/*
|
||||
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
|
||||
* Copyright (c) 2013, 2021, Red Hat, Inc. All rights reserved.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
@ -143,29 +144,29 @@ public:
|
||||
public:
|
||||
static ShenandoahHeap* heap();
|
||||
|
||||
const char* name() const { return "Shenandoah"; }
|
||||
ShenandoahHeap::Name kind() const { return CollectedHeap::Shenandoah; }
|
||||
const char* name() const override { return "Shenandoah"; }
|
||||
ShenandoahHeap::Name kind() const override { return CollectedHeap::Shenandoah; }
|
||||
|
||||
ShenandoahHeap(ShenandoahCollectorPolicy* policy);
|
||||
jint initialize();
|
||||
void post_initialize();
|
||||
jint initialize() override;
|
||||
void post_initialize() override;
|
||||
void initialize_mode();
|
||||
void initialize_heuristics();
|
||||
|
||||
void initialize_serviceability();
|
||||
void initialize_serviceability() override;
|
||||
|
||||
void print_on(outputStream* st) const;
|
||||
void print_extended_on(outputStream *st) const;
|
||||
void print_tracing_info() const;
|
||||
void print_on(outputStream* st) const override;
|
||||
void print_extended_on(outputStream *st) const override;
|
||||
void print_tracing_info() const override;
|
||||
void print_heap_regions_on(outputStream* st) const;
|
||||
|
||||
void stop();
|
||||
void stop() override;
|
||||
|
||||
void prepare_for_verify();
|
||||
void verify(VerifyOption vo);
|
||||
void prepare_for_verify() override;
|
||||
void verify(VerifyOption vo) override;
|
||||
|
||||
// WhiteBox testing support.
|
||||
bool supports_concurrent_gc_breakpoints() const {
|
||||
bool supports_concurrent_gc_breakpoints() const override {
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -194,11 +195,11 @@ public:
|
||||
void reset_bytes_allocated_since_gc_start();
|
||||
|
||||
size_t min_capacity() const;
|
||||
size_t max_capacity() const;
|
||||
size_t max_capacity() const override;
|
||||
size_t soft_max_capacity() const;
|
||||
size_t initial_capacity() const;
|
||||
size_t capacity() const;
|
||||
size_t used() const;
|
||||
size_t capacity() const override;
|
||||
size_t used() const override;
|
||||
size_t committed() const;
|
||||
|
||||
void set_soft_max_capacity(size_t v);
|
||||
@ -215,9 +216,9 @@ public:
|
||||
void assert_gc_workers(uint nworker) NOT_DEBUG_RETURN;
|
||||
|
||||
WorkerThreads* workers() const;
|
||||
WorkerThreads* safepoint_workers();
|
||||
WorkerThreads* safepoint_workers() override;
|
||||
|
||||
void gc_threads_do(ThreadClosure* tcl) const;
|
||||
void gc_threads_do(ThreadClosure* tcl) const override;
|
||||
|
||||
// ---------- Heap regions handling machinery
|
||||
//
|
||||
@ -417,14 +418,14 @@ private:
|
||||
// For exporting to SA
|
||||
int _log_min_obj_alignment_in_bytes;
|
||||
public:
|
||||
ShenandoahMonitoringSupport* monitoring_support() { return _monitoring_support; }
|
||||
GCMemoryManager* cycle_memory_manager() { return &_cycle_memory_manager; }
|
||||
GCMemoryManager* stw_memory_manager() { return &_stw_memory_manager; }
|
||||
SoftRefPolicy* soft_ref_policy() { return &_soft_ref_policy; }
|
||||
ShenandoahMonitoringSupport* monitoring_support() { return _monitoring_support; }
|
||||
GCMemoryManager* cycle_memory_manager() { return &_cycle_memory_manager; }
|
||||
GCMemoryManager* stw_memory_manager() { return &_stw_memory_manager; }
|
||||
SoftRefPolicy* soft_ref_policy() override { return &_soft_ref_policy; }
|
||||
|
||||
GrowableArray<GCMemoryManager*> memory_managers();
|
||||
GrowableArray<MemoryPool*> memory_pools();
|
||||
MemoryUsage memory_usage();
|
||||
GrowableArray<GCMemoryManager*> memory_managers() override;
|
||||
GrowableArray<MemoryPool*> memory_pools() override;
|
||||
MemoryUsage memory_usage() override;
|
||||
GCTracer* tracer();
|
||||
ConcurrentGCTimer* gc_timer() const;
|
||||
|
||||
@ -465,53 +466,52 @@ private:
|
||||
// and can be stubbed out.
|
||||
//
|
||||
public:
|
||||
AdaptiveSizePolicy* size_policy() shenandoah_not_implemented_return(NULL);
|
||||
bool is_maximal_no_gc() const shenandoah_not_implemented_return(false);
|
||||
bool is_maximal_no_gc() const override shenandoah_not_implemented_return(false);
|
||||
|
||||
bool is_in(const void* p) const;
|
||||
bool is_in(const void* p) const override;
|
||||
|
||||
bool requires_barriers(stackChunkOop obj) const;
|
||||
bool requires_barriers(stackChunkOop obj) const override;
|
||||
|
||||
MemRegion reserved_region() const { return _reserved; }
|
||||
bool is_in_reserved(const void* addr) const { return _reserved.contains(addr); }
|
||||
|
||||
void collect(GCCause::Cause cause);
|
||||
void do_full_collection(bool clear_all_soft_refs);
|
||||
void collect(GCCause::Cause cause) override;
|
||||
void do_full_collection(bool clear_all_soft_refs) override;
|
||||
|
||||
// Used for parsing heap during error printing
|
||||
HeapWord* block_start(const void* addr) const;
|
||||
bool block_is_obj(const HeapWord* addr) const;
|
||||
bool print_location(outputStream* st, void* addr) const;
|
||||
bool print_location(outputStream* st, void* addr) const override;
|
||||
|
||||
// Used for native heap walkers: heap dumpers, mostly
|
||||
void object_iterate(ObjectClosure* cl);
|
||||
void object_iterate(ObjectClosure* cl) override;
|
||||
// Parallel heap iteration support
|
||||
virtual ParallelObjectIteratorImpl* parallel_object_iterator(uint workers);
|
||||
ParallelObjectIteratorImpl* parallel_object_iterator(uint workers) override;
|
||||
|
||||
// Keep alive an object that was loaded with AS_NO_KEEPALIVE.
|
||||
void keep_alive(oop obj);
|
||||
void keep_alive(oop obj) override;
|
||||
|
||||
// ---------- Safepoint interface hooks
|
||||
//
|
||||
public:
|
||||
void safepoint_synchronize_begin();
|
||||
void safepoint_synchronize_end();
|
||||
void safepoint_synchronize_begin() override;
|
||||
void safepoint_synchronize_end() override;
|
||||
|
||||
// ---------- Code roots handling hooks
|
||||
//
|
||||
public:
|
||||
void register_nmethod(nmethod* nm);
|
||||
void unregister_nmethod(nmethod* nm);
|
||||
void verify_nmethod(nmethod* nm) {}
|
||||
void register_nmethod(nmethod* nm) override;
|
||||
void unregister_nmethod(nmethod* nm) override;
|
||||
void verify_nmethod(nmethod* nm) override {}
|
||||
|
||||
// ---------- Pinning hooks
|
||||
//
|
||||
public:
|
||||
// Shenandoah supports per-object (per-region) pinning
|
||||
bool supports_object_pinning() const { return true; }
|
||||
bool supports_object_pinning() const override { return true; }
|
||||
|
||||
oop pin_object(JavaThread* thread, oop obj);
|
||||
void unpin_object(JavaThread* thread, oop obj);
|
||||
oop pin_object(JavaThread* thread, oop obj) override;
|
||||
void unpin_object(JavaThread* thread, oop obj) override;
|
||||
|
||||
void sync_pinned_region_status();
|
||||
void assert_pinned_region_status() NOT_DEBUG_RETURN;
|
||||
@ -519,7 +519,7 @@ public:
|
||||
// ---------- Concurrent Stack Processing support
|
||||
//
|
||||
public:
|
||||
bool uses_stack_watermark_barrier() const { return true; }
|
||||
bool uses_stack_watermark_barrier() const override { return true; }
|
||||
|
||||
// ---------- Allocation support
|
||||
//
|
||||
@ -531,20 +531,20 @@ private:
|
||||
|
||||
public:
|
||||
HeapWord* allocate_memory(ShenandoahAllocRequest& request);
|
||||
HeapWord* mem_allocate(size_t size, bool* what);
|
||||
HeapWord* mem_allocate(size_t size, bool* what) override;
|
||||
MetaWord* satisfy_failed_metadata_allocation(ClassLoaderData* loader_data,
|
||||
size_t size,
|
||||
Metaspace::MetadataType mdtype);
|
||||
Metaspace::MetadataType mdtype) override;
|
||||
|
||||
void notify_mutator_alloc_words(size_t words, bool waste);
|
||||
|
||||
HeapWord* allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size);
|
||||
size_t tlab_capacity(Thread *thr) const;
|
||||
size_t unsafe_max_tlab_alloc(Thread *thread) const;
|
||||
size_t max_tlab_size() const;
|
||||
size_t tlab_used(Thread* ignored) const;
|
||||
HeapWord* allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size) override;
|
||||
size_t tlab_capacity(Thread *thr) const override;
|
||||
size_t unsafe_max_tlab_alloc(Thread *thread) const override;
|
||||
size_t max_tlab_size() const override;
|
||||
size_t tlab_used(Thread* ignored) const override;
|
||||
|
||||
void ensure_parsability(bool retire_labs);
|
||||
void ensure_parsability(bool retire_labs) override;
|
||||
|
||||
void labs_make_parsable();
|
||||
void tlabs_retire(bool resize);
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/*
|
||||
* Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
|
||||
* Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* This code is free software; you can redistribute it and/or modify it
|
||||
@ -50,79 +50,79 @@ private:
|
||||
ZStat* _stat;
|
||||
ZRuntimeWorkers _runtime_workers;
|
||||
|
||||
virtual HeapWord* allocate_new_tlab(size_t min_size,
|
||||
size_t requested_size,
|
||||
size_t* actual_size);
|
||||
HeapWord* allocate_new_tlab(size_t min_size,
|
||||
size_t requested_size,
|
||||
size_t* actual_size) override;
|
||||
|
||||
public:
|
||||
static ZCollectedHeap* heap();
|
||||
|
||||
ZCollectedHeap();
|
||||
virtual Name kind() const;
|
||||
virtual const char* name() const;
|
||||
virtual jint initialize();
|
||||
virtual void initialize_serviceability();
|
||||
virtual void stop();
|
||||
Name kind() const override;
|
||||
const char* name() const override;
|
||||
jint initialize() override;
|
||||
void initialize_serviceability() override;
|
||||
void stop() override;
|
||||
|
||||
virtual SoftRefPolicy* soft_ref_policy();
|
||||
SoftRefPolicy* soft_ref_policy() override;
|
||||
|
||||
virtual size_t max_capacity() const;
|
||||
virtual size_t capacity() const;
|
||||
virtual size_t used() const;
|
||||
virtual size_t unused() const;
|
||||
size_t max_capacity() const override;
|
||||
size_t capacity() const override;
|
||||
size_t used() const override;
|
||||
size_t unused() const override;
|
||||
|
||||
virtual bool is_maximal_no_gc() const;
|
||||
virtual bool is_in(const void* p) const;
|
||||
virtual bool requires_barriers(stackChunkOop obj) const;
|
||||
bool is_maximal_no_gc() const override;
|
||||
bool is_in(const void* p) const override;
|
||||
bool requires_barriers(stackChunkOop obj) const override;
|
||||
|
||||
virtual oop array_allocate(Klass* klass, size_t size, int length, bool do_zero, TRAPS);
|
||||
virtual HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded);
|
||||
virtual MetaWord* satisfy_failed_metadata_allocation(ClassLoaderData* loader_data,
|
||||
size_t size,
|
||||
Metaspace::MetadataType mdtype);
|
||||
virtual void collect(GCCause::Cause cause);
|
||||
virtual void collect_as_vm_thread(GCCause::Cause cause);
|
||||
virtual void do_full_collection(bool clear_all_soft_refs);
|
||||
oop array_allocate(Klass* klass, size_t size, int length, bool do_zero, TRAPS) override;
|
||||
HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded) override;
|
||||
MetaWord* satisfy_failed_metadata_allocation(ClassLoaderData* loader_data,
|
||||
size_t size,
|
||||
Metaspace::MetadataType mdtype) override;
|
||||
void collect(GCCause::Cause cause) override;
|
||||
void collect_as_vm_thread(GCCause::Cause cause) override;
|
||||
void do_full_collection(bool clear_all_soft_refs) override;
|
||||
|
||||
virtual size_t tlab_capacity(Thread* thr) const;
|
||||
virtual size_t tlab_used(Thread* thr) const;
|
||||
virtual size_t max_tlab_size() const;
|
||||
virtual size_t unsafe_max_tlab_alloc(Thread* thr) const;
|
||||
size_t tlab_capacity(Thread* thr) const override;
|
||||
size_t tlab_used(Thread* thr) const override;
|
||||
size_t max_tlab_size() const override;
|
||||
size_t unsafe_max_tlab_alloc(Thread* thr) const override;
|
||||
|
||||
virtual bool uses_stack_watermark_barrier() const;
|
||||
bool uses_stack_watermark_barrier() const override;
|
||||
|
||||
virtual MemoryUsage memory_usage();
|
||||
virtual GrowableArray<GCMemoryManager*> memory_managers();
|
||||
virtual GrowableArray<MemoryPool*> memory_pools();
|
||||
MemoryUsage memory_usage() override;
|
||||
GrowableArray<GCMemoryManager*> memory_managers() override;
|
||||
GrowableArray<MemoryPool*> memory_pools() override;
|
||||
|
||||
virtual void object_iterate(ObjectClosure* cl);
|
||||
virtual ParallelObjectIteratorImpl* parallel_object_iterator(uint nworkers);
|
||||
void object_iterate(ObjectClosure* cl) override;
|
||||
ParallelObjectIteratorImpl* parallel_object_iterator(uint nworkers) override;
|
||||
|
||||
virtual void keep_alive(oop obj);
|
||||
void keep_alive(oop obj) override;
|
||||
|
||||
virtual void register_nmethod(nmethod* nm);
|
||||
virtual void unregister_nmethod(nmethod* nm);
|
||||
virtual void verify_nmethod(nmethod* nmethod);
|
||||
void register_nmethod(nmethod* nm) override;
|
||||
void unregister_nmethod(nmethod* nm) override;
|
||||
void verify_nmethod(nmethod* nmethod) override;
|
||||
|
||||
virtual WorkerThreads* safepoint_workers();
|
||||
WorkerThreads* safepoint_workers() override;
|
||||
|
||||
virtual void gc_threads_do(ThreadClosure* tc) const;
|
||||
void gc_threads_do(ThreadClosure* tc) const override;
|
||||
|
||||
virtual VirtualSpaceSummary create_heap_space_summary();
|
||||
VirtualSpaceSummary create_heap_space_summary() override;
|
||||
|
||||
virtual void safepoint_synchronize_begin();
|
||||
virtual void safepoint_synchronize_end();
|
||||
void safepoint_synchronize_begin() override;
|
||||
void safepoint_synchronize_end() override;
|
||||
|
||||
virtual void print_on(outputStream* st) const;
|
||||
virtual void print_on_error(outputStream* st) const;
|
||||
virtual void print_extended_on(outputStream* st) const;
|
||||
virtual void print_tracing_info() const;
|
||||
virtual bool print_location(outputStream* st, void* addr) const;
|
||||
void print_on(outputStream* st) const override;
|
||||
void print_on_error(outputStream* st) const override;
|
||||
void print_extended_on(outputStream* st) const override;
|
||||
void print_tracing_info() const override;
|
||||
bool print_location(outputStream* st, void* addr) const override;
|
||||
|
||||
virtual void prepare_for_verify();
|
||||
virtual void verify(VerifyOption option /* ignored */);
|
||||
virtual bool is_oop(oop object) const;
|
||||
virtual bool supports_concurrent_gc_breakpoints() const;
|
||||
void prepare_for_verify() override;
|
||||
void verify(VerifyOption option /* ignored */) override;
|
||||
bool is_oop(oop object) const override;
|
||||
bool supports_concurrent_gc_breakpoints() const override;
|
||||
};
|
||||
|
||||
#endif // SHARE_GC_Z_ZCOLLECTEDHEAP_HPP
|
||||
|
||||
Loading…
Reference in New Issue
Block a user