author | pliden |
Tue, 12 Jun 2018 17:40:28 +0200 | |
changeset 50525 | 767cdb97f103 |
child 54093 | 9d02451b536e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, 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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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#ifndef SHARE_GC_Z_ZPAGE_HPP |
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#define SHARE_GC_Z_ZPAGE_HPP |
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#include "gc/z/zForwardingTable.hpp" |
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#include "gc/z/zList.hpp" |
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#include "gc/z/zLiveMap.hpp" |
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#include "gc/z/zPhysicalMemory.hpp" |
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#include "gc/z/zVirtualMemory.hpp" |
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#include "memory/allocation.hpp" |
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class ZPage : public CHeapObj<mtGC> { |
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friend class VMStructs; |
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friend class ZList<ZPage>; |
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private: |
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// Always hot |
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const uint8_t _type; // Page type |
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volatile uint8_t _pinned; // Pinned flag |
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uint8_t _numa_id; // NUMA node affinity |
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uint32_t _seqnum; // Allocation sequence number |
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const ZVirtualMemory _virtual; // Virtual start/end address |
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volatile uintptr_t _top; // Virtual top address |
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ZLiveMap _livemap; // Live map |
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// Hot when relocated and cached |
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volatile uint32_t _refcount; // Page reference count |
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ZForwardingTable _forwarding; // Forwarding table |
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ZPhysicalMemory _physical; // Physical memory for page |
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ZListNode<ZPage> _node; // Page list node |
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const char* type_to_string() const; |
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uint32_t object_max_count() const; |
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uintptr_t relocate_object_inner(uintptr_t from_index, uintptr_t from_offset); |
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bool is_object_marked(uintptr_t addr) const; |
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bool is_object_strongly_marked(uintptr_t addr) const; |
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public: |
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ZPage(uint8_t type, ZVirtualMemory vmem, ZPhysicalMemory pmem); |
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~ZPage(); |
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size_t object_alignment_shift() const; |
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size_t object_alignment() const; |
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uint8_t type() const; |
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uintptr_t start() const; |
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uintptr_t end() const; |
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size_t size() const; |
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uintptr_t top() const; |
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size_t remaining() const; |
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uint8_t numa_id(); |
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ZPhysicalMemory& physical_memory(); |
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const ZVirtualMemory& virtual_memory() const; |
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void reset(); |
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bool inc_refcount(); |
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bool dec_refcount(); |
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bool is_in(uintptr_t addr) const; |
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uintptr_t block_start(uintptr_t addr) const; |
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size_t block_size(uintptr_t addr) const; |
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bool block_is_obj(uintptr_t addr) const; |
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bool is_active() const; |
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bool is_allocating() const; |
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bool is_relocatable() const; |
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bool is_detached() const; |
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bool is_mapped() const; |
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void set_pre_mapped(); |
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bool is_pinned() const; |
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void set_pinned(); |
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bool is_forwarding() const; |
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void set_forwarding(); |
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void reset_forwarding(); |
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void verify_forwarding() const; |
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bool is_marked() const; |
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bool is_object_live(uintptr_t addr) const; |
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bool is_object_strongly_live(uintptr_t addr) const; |
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bool mark_object(uintptr_t addr, bool finalizable, bool& inc_live); |
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void inc_live_atomic(uint32_t objects, size_t bytes); |
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size_t live_bytes() const; |
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void object_iterate(ObjectClosure* cl); |
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uintptr_t alloc_object(size_t size); |
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uintptr_t alloc_object_atomic(size_t size); |
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bool undo_alloc_object(uintptr_t addr, size_t size); |
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bool undo_alloc_object_atomic(uintptr_t addr, size_t size); |
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uintptr_t relocate_object(uintptr_t from); |
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uintptr_t forward_object(uintptr_t from); |
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void print_on(outputStream* out) const; |
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void print() const; |
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}; |
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#endif // SHARE_GC_Z_ZPAGE_HPP |