--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/z/zHeap.hpp	Tue Jun 12 17:40:28 2018 +0200
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2015, 2018, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#ifndef SHARE_GC_Z_ZHEAP_HPP
+#define SHARE_GC_Z_ZHEAP_HPP
+
+#include "gc/shared/gcTimer.hpp"
+#include "gc/z/zAllocationFlags.hpp"
+#include "gc/z/zArray.hpp"
+#include "gc/z/zList.hpp"
+#include "gc/z/zLock.hpp"
+#include "gc/z/zMark.hpp"
+#include "gc/z/zObjectAllocator.hpp"
+#include "gc/z/zPage.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/zRelocationSetSelector.hpp"
+#include "gc/z/zRootsIterator.hpp"
+#include "gc/z/zWeakRootsProcessor.hpp"
+#include "gc/z/zServiceability.hpp"
+#include "gc/z/zWorkers.hpp"
+#include "memory/allocation.hpp"
+
+class ZHeap {
+  friend class VMStructs;
+
+private:
+  static ZHeap*       _heap;
+
+  ZWorkers            _workers;
+  ZObjectAllocator    _object_allocator;
+  ZPageAllocator      _page_allocator;
+  ZPageTable          _pagetable;
+  ZMark               _mark;
+  ZReferenceProcessor _reference_processor;
+  ZWeakRootsProcessor _weak_roots_processor;
+  ZRelocate           _relocate;
+  ZRelocationSet      _relocation_set;
+  ZServiceability     _serviceability;
+
+  size_t heap_min_size() const;
+  size_t heap_max_size() const;
+  size_t heap_max_reserve_size() const;
+
+  void out_of_memory();
+  void flip_views();
+  void fixup_partial_loads();
+
+public:
+  static ZHeap* heap();
+
+  ZHeap();
+
+  bool is_initialized() const;
+
+  // Heap metrics
+  size_t min_capacity() const;
+  size_t max_capacity() const;
+  size_t capacity() const;
+  size_t max_reserve() const;
+  size_t used_high() const;
+  size_t used_low() const;
+  size_t used() const;
+  size_t allocated() const;
+  size_t reclaimed() 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;
+
+  // Block
+  uintptr_t block_start(uintptr_t addr) const;
+  size_t block_size(uintptr_t addr) const;
+  bool block_is_obj(uintptr_t addr) const;
+
+  // Workers
+  uint nconcurrent_worker_threads() const;
+  uint nconcurrent_no_boost_worker_threads() const;
+  void set_boost_worker_threads(bool boost);
+  void worker_threads_do(ThreadClosure* tc) const;
+  void print_worker_threads_on(outputStream* st) 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);
+  bool retain_page(ZPage* page);
+  void release_page(ZPage* page, 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);
+  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 finalizable, bool publish> void mark_object(uintptr_t addr);
+  void mark_start();
+  void mark();
+  void mark_flush_and_free(Thread* thread);
+  bool mark_end();
+
+  // Post-marking & Pre-relocation
+  void destroy_detached_pages();
+
+  // Relocation set
+  void select_relocation_set();
+  void prepare_relocation_set();
+  void reset_relocation_set();
+
+  // Relocation
+  bool is_relocating(uintptr_t addr) const;
+  void relocate_start();
+  uintptr_t relocate_object(uintptr_t addr);
+  uintptr_t forward_object(uintptr_t addr);
+  void relocate();
+
+  // Iteration
+  void object_iterate(ObjectClosure* cl);
+
+  // Serviceability
+  void serviceability_initialize();
+  GCMemoryManager* serviceability_memory_manager();
+  MemoryPool* serviceability_memory_pool();
+  ZServiceabilityCounters* serviceability_counters();
+
+  // Printing
+  void print_on(outputStream* st) const;
+  void print_extended_on(outputStream* st) const;
+
+  // Verification
+  bool is_oop(oop object) const;
+  void verify();
+};
+
+#endif // SHARE_GC_Z_ZHEAP_HPP