/*
* Copyright (c) 2019, 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.
*
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#ifndef OS_WINDOWS_GC_Z_ZPHYSICALMEMORYBACKING_WINDOWS_HPP
#define OS_WINDOWS_GC_Z_ZPHYSICALMEMORYBACKING_WINDOWS_HPP
#include "gc/z/zBackingFile_windows.hpp"
#include "gc/z/zMemory.hpp"
class ZPhysicalMemory;
class ZPhysicalMemoryBacking {
private:
ZBackingFile _file;
ZMemoryManager _committed;
ZMemoryManager _uncommitted;
void pretouch_view(uintptr_t addr, size_t size) const;
void map_view(const ZPhysicalMemory& pmem, uintptr_t addr) const;
void unmap_view(const ZPhysicalMemory& pmem, uintptr_t addr) const;
public:
bool is_initialized() const;
void warn_commit_limits(size_t max) const;
bool supports_uncommit();
size_t commit(size_t size);
size_t uncommit(size_t size);
ZPhysicalMemory alloc(size_t size);
void free(const ZPhysicalMemory& pmem);
uintptr_t nmt_address(uintptr_t offset) const;
void pretouch(uintptr_t offset, size_t size) const;
void map(const ZPhysicalMemory& pmem, uintptr_t offset) const;
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