/* vim: set ts=4 sw=4 tw=99 et:

 *

 * Copyright (C) 2012 David Anderson

 *

 * This file is part of JITCraft.

 *

 * JITCraft is free software: you can redistribute it and/or modify it under

 * the terms of the GNU General Public License as published by the Free

 * Software Foundation, either version 3 of the License, or (at your option)

 * any later version.

 * 

 * Foobar 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 for more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * JITCraft. If not, see http://www.gnu.org/licenses/.

 */

#ifndef _include_jitcraft_spaces_inl_h_

#define _include_jitcraft_spaces_inl_h_

#include "Objects.h"

namespace ke {

inline Address

HeapStack::allocate(size_t nbytes)

{

    nbytes = Align(nbytes, kObjectAlignment);

    if (cursor_ + nbytes > chunk_->end())

        return NULL;

    Address ptr = cursor_;

    cursor_ += nbytes;

    return ptr;

}

inline void

HeapStack::unwind(Address to)

{

    assert(to <= cursor_ && to >= chunk_->first());

    cursor_ = to;

}

inline Address

OldSpace::allocate(size_t nbytes)

{

    assert(IsAligned(nbytes, kObjectAlignment));

    if (cursor_ + nbytes > last_->end())

        return allocateSlow(nbytes);

    Address addr = cursor_;

    cursor_ += nbytes;

    return addr;

}

template <typename SizeEvaluator> inline Object *

ChunkObjectIteratorBase<SizeEvaluator>::next()

{

    while (current_ && current_ != top_) {

        Object *obj = reinterpret_cast<Object *>(current_);

        size_t size = evaluator_(obj, obj->map());

        current_ += size;

        if (current_ == chunk_->end()) {

            chunk_ = chunk_->next();

            current_ = chunk_ ? chunk_->first() : NULL;

        }

        if (obj->is(MapKind_FreeRegion))

            continue;

    }

    return NULL;

}

}

#endif // _include_jitcraft_spaces_inl_h_