src/hotspot/share/gc/z/zMemory.inline.hpp

/*
 * Copyright (c) 2015, 2017, 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
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#ifndef SHARE_GC_Z_ZMEMORY_INLINE_HPP
#define SHARE_GC_Z_ZMEMORY_INLINE_HPP

#include "gc/z/zMemory.hpp"
#include "utilities/debug.hpp"

inline ZMemory::ZMemory(uintptr_t start, size_t size) :
    _start(start),
    _end(start + size) {}

inline uintptr_t ZMemory::start() const {
  return _start;
}

inline uintptr_t ZMemory::end() const {
  return _end;
}

inline size_t ZMemory::size() const {
  return end() - start();
}

inline void ZMemory::shrink_from_front(size_t size) {
  assert(this->size() > size, "Too small");
  _start += size;
}

inline void ZMemory::shrink_from_back(size_t size) {
  assert(this->size() > size, "Too small");
  _end -= size;
}

inline void ZMemory::grow_from_front(size_t size) {
  assert(start() >= size, "Too big");
  _start -= size;
}

inline void ZMemory::grow_from_back(size_t size) {
  _end += size;
}

#endif // SHARE_GC_Z_ZMEMORY_INLINE_HPP