heap.hpp

/* -*- Mode: C++; c-basic-offset:4; tab-width:4; indent-tabs-mode:nil; -*- */
/*
 * libopenraw - ciff/heap.hpp
 *
 * Copyright (C) 2006-2020 Hubert Figuière
 *
 * This library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see
 * <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <memory>
 
#include "rawcontainer.hpp"
#include "ciff/recordentry.hpp"
 
namespace OpenRaw {
namespace Internals {
 
class CIFFContainer;
 
namespace CIFF {
class Heap;
 
typedef std::shared_ptr<Heap> HeapRef;
 
class Heap
{
public:
 
    Heap(off_t start, off_t length, const CIFFContainer* container);
 
    Heap(const Heap &) = delete;
    Heap(Heap&&) = default;
    Heap & operator=(const Heap &) = delete;
 
    RecordEntries& records();
    const CIFFContainer* container() const
        {
            return m_container;
        }
    off_t offset() const
        {
            return m_start;
        }
private:
    bool _loadRecords();
 
    off_t m_start;
    off_t m_length;
    const CIFFContainer* m_container;
    RecordEntries m_records;
};
 
class HeapFileHeader
{
public:
    bool readFrom(CIFFContainer *);
    char       byteOrder[2]; 
    uint32_t   headerLength; 
    char       type[4]; 
    char       subType[4]; 
    uint32_t   version; 
    /* uint32_t   reserved1; */
    /* uint32_t   reserved2; */
    RawContainer::EndianType endian; 
};
 
}
}
}