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// 7z/Out.h
#ifndef __7Z_OUT_H
#define __7Z_OUT_H
#include "7zHeader.h"
#include "7zItem.h"
#include "7zCompressionMode.h"
#include "7zEncode.h"
#include "../../Common/OutBuffer.h"
#include "../../../Common/DynamicBuffer.h"
#include "../../../Common/CRC.h"
namespace NArchive {
namespace N7z {
class CWriteBufferLoc
{
Byte *_data;
size_t _size;
size_t _pos;
public:
CWriteBufferLoc(): _size(0), _pos(0) {}
void Init(Byte *data, size_t size)
{
_pos = 0;
_data = data;
_size = size;
}
HRESULT Write(const void *data, size_t size)
{
if (_pos + size > _size)
return E_FAIL;
memmove(_data + _pos, data, size);
_pos += size;
return S_OK;
}
};
class CWriteDynamicBuffer
{
CByteDynamicBuffer _buffer;
size_t _pos;
public:
CWriteDynamicBuffer(): _pos(0) {}
void Init()
{
_pos = 0;
}
void Write(const void *data, size_t size)
{
if (_pos + size > _buffer.GetCapacity())
_buffer.EnsureCapacity(_pos + size);
memmove(((Byte *)_buffer) +_pos, data, size);
_pos += size;
}
operator Byte *() { return (Byte *)_buffer; };
operator const Byte *() const { return (const Byte *)_buffer; };
size_t GetSize() const { return _pos; }
};
struct CHeaderOptions
{
bool UseAdditionalHeaderStreams;
bool CompressMainHeader;
bool WriteModified;
bool WriteCreated;
bool WriteAccessed;
CHeaderOptions():
UseAdditionalHeaderStreams(false),
CompressMainHeader(true),
WriteModified(true),
WriteCreated(false),
WriteAccessed(false) {}
};
class COutArchive
{
UInt64 _prefixHeaderPos;
HRESULT WriteDirect(const void *data, UInt32 size);
HRESULT WriteDirectByte(Byte b) { return WriteDirect(&b, 1); }
HRESULT WriteDirectUInt32(UInt32 value);
HRESULT WriteDirectUInt64(UInt64 value);
HRESULT WriteBytes(const void *data, size_t size);
HRESULT WriteBytes(const CByteBuffer &data);
HRESULT WriteByte(Byte b);
HRESULT WriteUInt32(UInt32 value);
HRESULT WriteNumber(UInt64 value);
HRESULT WriteID(UInt64 value) { return WriteNumber(value); }
HRESULT WriteFolder(const CFolder &folder);
HRESULT WriteFileHeader(const CFileItem &itemInfo);
HRESULT WriteBoolVector(const CBoolVector &boolVector);
HRESULT WriteHashDigests(
const CRecordVector<bool> &digestsDefined,
const CRecordVector<UInt32> &hashDigests);
HRESULT WritePackInfo(
UInt64 dataOffset,
const CRecordVector<UInt64> &packSizes,
const CRecordVector<bool> &packCRCsDefined,
const CRecordVector<UInt32> &packCRCs);
HRESULT WriteUnPackInfo(
bool externalFolders,
CNum externalFoldersStreamIndex,
const CObjectVector<CFolder> &folders);
HRESULT WriteSubStreamsInfo(
const CObjectVector<CFolder> &folders,
const CRecordVector<CNum> &numUnPackStreamsInFolders,
const CRecordVector<UInt64> &unPackSizes,
const CRecordVector<bool> &digestsDefined,
const CRecordVector<UInt32> &hashDigests);
/*
HRESULT WriteStreamsInfo(
UInt64 dataOffset,
const CRecordVector<UInt64> &packSizes,
const CRecordVector<bool> &packCRCsDefined,
const CRecordVector<UInt32> &packCRCs,
bool externalFolders,
UInt64 externalFoldersStreamIndex,
const CObjectVector<CFolder> &folders,
const CRecordVector<CNum> &numUnPackStreamsInFolders,
const CRecordVector<UInt64> &unPackSizes,
const CRecordVector<bool> &digestsDefined,
const CRecordVector<UInt32> &hashDigests);
*/
HRESULT WriteTime(const CObjectVector<CFileItem> &files, Byte type,
bool isExternal, CNum externalDataIndex);
HRESULT EncodeStream(CEncoder &encoder, const Byte *data, size_t dataSize,
CRecordVector<UInt64> &packSizes, CObjectVector<CFolder> &folders);
HRESULT EncodeStream(CEncoder &encoder, const CByteBuffer &data,
CRecordVector<UInt64> &packSizes, CObjectVector<CFolder> &folders);
HRESULT WriteHeader(const CArchiveDatabase &database,
const CCompressionMethodMode *options,
const CHeaderOptions &headerOptions,
UInt64 &headerOffset);
bool _mainMode;
bool _dynamicMode;
bool _countMode;
size_t _countSize;
COutBuffer _outByte;
CWriteBufferLoc _outByte2;
CWriteDynamicBuffer _dynamicBuffer;
CCRC _crc;
#ifdef _7Z_VOL
bool _endMarker;
#endif
HRESULT WriteSignature();
#ifdef _7Z_VOL
HRESULT WriteFinishSignature();
#endif
HRESULT WriteStartHeader(const CStartHeader &h);
#ifdef _7Z_VOL
HRESULT WriteFinishHeader(const CFinishHeader &h);
#endif
CMyComPtr<IOutStream> Stream;
public:
COutArchive() { _outByte.Create(1 << 16); }
CMyComPtr<ISequentialOutStream> SeqStream;
HRESULT Create(ISequentialOutStream *stream, bool endMarker);
void Close();
HRESULT SkeepPrefixArchiveHeader();
HRESULT WriteDatabase(const CArchiveDatabase &database,
const CCompressionMethodMode *options,
const CHeaderOptions &headerOptions);
#ifdef _7Z_VOL
static UInt32 GetVolHeadersSize(UInt64 dataSize, int nameLength = 0, bool props = false);
static UInt64 GetVolPureSize(UInt64 volSize, int nameLength = 0, bool props = false);
#endif
};
}}
#endif
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