/*
 * Copyright (c) 2020, 2023, 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 SHARE_GC_Z_ZFORWARDINGALLOCATOR_INLINE_HPP
#define SHARE_GC_Z_ZFORWARDINGALLOCATOR_INLINE_HPP

#include "gc/z/zForwardingAllocator.hpp"

#include "runtime/atomic.hpp"
#include "utilities/debug.hpp"

inline size_t ZForwardingAllocator::size() const {
  return _end - _start;
}

inline bool ZForwardingAllocator::is_full() const {
  return _top == _end;
}

inline void* ZForwardingAllocator::alloc(size_t size) {
  char* const addr = Atomic::fetch_then_add(&_top, size);
  assert(addr + size <= _end, "Allocation should never fail");
  return addr;
}

#endif // SHARE_GC_Z_ZFORWARDINGALLOCATOR_INLINE_HPP
