1 /* 2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #ifndef SHARE_GC_Z_ZCOLLECTEDHEAP_HPP 25 #define SHARE_GC_Z_ZCOLLECTEDHEAP_HPP 26 27 #include "gc/shared/collectedHeap.hpp" 28 #include "gc/z/zBarrierSet.hpp" 29 #include "gc/z/zCollectorPolicy.hpp" 30 #include "gc/z/zDirector.hpp" 31 #include "gc/z/zDriver.hpp" 32 #include "gc/z/zHeap.hpp" 33 #include "gc/z/zStat.hpp" 34 35 class ZCollectedHeap : public CollectedHeap { 36 private: 37 ZCollectorPolicy* _policy; 38 ZBarrierSet _barrier; 39 ZHeap _heap; 40 ZDirector* _director; 41 ZDriver* _driver; 42 ZStat* _stat; 43 44 virtual HeapWord* allocate_new_tlab(size_t word_size); 45 46 public: 47 static ZCollectedHeap* heap(); 48 49 using CollectedHeap::ensure_parsability; 50 using CollectedHeap::accumulate_statistics_all_tlabs; 51 using CollectedHeap::resize_all_tlabs; 52 53 ZCollectedHeap(ZCollectorPolicy* policy); 54 virtual Name kind() const; 55 virtual const char* name() const; 56 virtual jint initialize(); 57 virtual void initialize_serviceability(); 58 virtual void stop(); 59 60 virtual CollectorPolicy* collector_policy() const; 61 virtual AdaptiveSizePolicy* size_policy(); 62 63 virtual size_t max_capacity() const; 64 virtual size_t capacity() const; 65 virtual size_t used() const; 66 67 virtual bool is_maximal_no_gc() const; 68 virtual bool is_scavengable(oop obj); 69 virtual bool is_in(const void* p) const; 70 virtual bool is_in_closed_subset(const void* p) const; 71 72 virtual HeapWord* mem_allocate(size_t size, bool* gc_overhead_limit_was_exceeded); 73 virtual void collect(GCCause::Cause cause); 74 virtual void collect_as_vm_thread(GCCause::Cause cause); 75 virtual void do_full_collection(bool clear_all_soft_refs); 76 77 virtual bool supports_tlab_allocation() const; 78 virtual size_t tlab_capacity(Thread* thr) const; 79 virtual size_t tlab_used(Thread* thr) const; 80 virtual size_t max_tlab_size() const; 81 virtual size_t unsafe_max_tlab_alloc(Thread* thr) const; 82 83 virtual bool can_elide_tlab_store_barriers() const; 84 virtual bool can_elide_initializing_store_barrier(oop new_obj); 85 virtual bool card_mark_must_follow_store() const; 86 87 virtual GrowableArray<GCMemoryManager*> memory_managers(); 88 virtual GrowableArray<MemoryPool*> memory_pools(); 89 90 virtual void object_iterate(ObjectClosure* cl); 91 virtual void safe_object_iterate(ObjectClosure* cl); 92 93 virtual HeapWord* block_start(const void* addr) const; 94 virtual size_t block_size(const HeapWord* addr) const; 95 virtual bool block_is_obj(const HeapWord* addr) const; 96 97 virtual void register_nmethod(nmethod* nm); 98 virtual void unregister_nmethod(nmethod* nm); 99 virtual void verify_nmethod(nmethod* nmethod); 100 101 virtual jlong millis_since_last_gc(); 102 103 virtual void gc_threads_do(ThreadClosure* tc) const; 104 105 virtual VirtualSpaceSummary create_heap_space_summary(); 106 107 virtual void print_on(outputStream* st) const; 108 virtual void print_on_error(outputStream* st) const; 109 virtual void print_extended_on(outputStream* st) const; 110 virtual void print_gc_threads_on(outputStream* st) const; 111 virtual void print_tracing_info() const; 112 113 virtual void prepare_for_verify(); 114 virtual void verify(VerifyOption option /* ignored */); 115 virtual bool is_oop(oop object) const; 116 }; 117 118 #endif // SHARE_GC_Z_ZCOLLECTEDHEAP_HPP