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// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This code manages ar/cpio/tar like file structure that contains
// multiple sections in a file. Each section has a name and size.
#ifndef MOZC_DICTIONARY_DICTIONARY_FILE_H_
#define MOZC_DICTIONARY_DICTIONARY_FILE_H_
#include <string>
#include <list>
#include "base/base.h"
#include "base/file_stream.h"
#include "base/mmap.h"
namespace mozc {
class OutputFileStream;
struct DictionaryFileSection {
const char *ptr;
int len;
string name;
bool isExternal;
};
class DictionaryFile {
public:
DictionaryFile();
virtual ~DictionaryFile();
bool Open(const char* fn, bool to_write);
bool SetPtr(const char* ptr, int len);
void AddSection(const char* sec, const char* fn);
void Write();
const char* GetSection(const char* sec, int *len);
private:
bool ScanSections();
void WriteSection(OutputFileStream &ofs, DictionaryFileSection *s);
void WriteInt(OutputFileStream &ofs, int n);
int ReadInt(const char *ptr);
// Write padding bytes.
void Pad4(OutputFileStream &ofs, int len);
// Round up by 4 bytes.
int Rup4(int len);
// This will be NULL if the mapping source is given as a pointer.
scoped_ptr<Mmap<char> > mapping_;
const char *ptr_;
int mapping_len_;
list<DictionaryFileSection *> sections_;
string filename_;
static const int filemagic_ = 20080808;
};
}
#endif // MOZC_DICTIONARY_DICTIONARY_FILE_H_