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 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * 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_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP
#define SHARE_GC_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP

#include "gc/shared/oopStorage.inline.hpp"
#include "gc/shared/oopStorageParState.hpp"
#include "metaprogramming/conditional.hpp"
#include "utilities/macros.hpp"

template<typename F>
class OopStorage::BasicParState::AlwaysTrueFn {
  F _f;

public:
  AlwaysTrueFn(F f) : _f(f) {}

  template<typename OopPtr>     // [const] oop*
  bool operator()(OopPtr ptr) const { _f(ptr); return true; }
};

template<bool is_const, typename F>
inline void OopStorage::BasicParState::iterate(F f) {
  // Wrap f in ATF so we can use Block::iterate.
  AlwaysTrueFn<F> atf_f(f);
  ensure_iteration_started();
  typename Conditional<is_const, const Block*, Block*>::type block;
  while ((block = claim_next_block()) != NULL) {
    block->iterate(atf_f);
  }
}

template<bool concurrent, bool is_const>
template<typename F>
inline void OopStorage::ParState<concurrent, is_const>::iterate(F f) {
  _basic_state.template iterate<is_const>(f);
}

template<bool concurrent, bool is_const>
template<typename Closure>
inline void OopStorage::ParState<concurrent, is_const>::oops_do(Closure* cl) {
  this->iterate(oop_fn(cl));
}

template<typename F>
inline void OopStorage::ParState<false, false>::iterate(F f) {
  _basic_state.template iterate<false>(f);
}

template<typename Closure>
inline void OopStorage::ParState<false, false>::oops_do(Closure* cl) {
  this->iterate(oop_fn(cl));
}

template<typename Closure>
inline void OopStorage::ParState<false, false>::weak_oops_do(Closure* cl) {
  this->iterate(skip_null_fn(oop_fn(cl)));
}

template<typename IsAliveClosure, typename Closure>
inline void OopStorage::ParState<false, false>::weak_oops_do(IsAliveClosure* is_alive, Closure* cl) {
  this->iterate(if_alive_fn(is_alive, oop_fn(cl)));
}

#endif // SHARE_GC_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP