haiku/headers/private/package/hpkg/PackageReaderImpl.h
Ingo Weinhold cdfeba5a1e BPackageWriter: Add Recompress()
Allows rewriting an existing package file with a different compression.
2014-07-08 22:00:35 +02:00

109 lines
2.2 KiB
C++

/*
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Copyright 2011, Oliver Tappe <zooey@hirschkaefer.de>
* Distributed under the terms of the MIT License.
*/
#ifndef _PACKAGE__HPKG__PRIVATE__PACKAGE_READER_IMPL_H_
#define _PACKAGE__HPKG__PRIVATE__PACKAGE_READER_IMPL_H_
#include <package/hpkg/ReaderImplBase.h>
namespace BPackageKit {
namespace BHPKG {
class BPackageEntry;
class BPackageEntryAttribute;
namespace BPrivate {
class PackageWriterImpl;
class PackageReaderImpl : public ReaderImplBase {
typedef ReaderImplBase inherited;
public:
PackageReaderImpl(BErrorOutput* errorOutput);
~PackageReaderImpl();
status_t Init(const char* fileName, uint32 flags);
status_t Init(int fd, bool keepFD, uint32 flags);
status_t ParseContent(
BPackageContentHandler* contentHandler);
status_t ParseContent(BLowLevelPackageContentHandler*
contentHandler);
int PackageFileFD() const;
uint64 HeapOffset() const;
uint64 HeapSize() const;
PackageFileHeapReader* RawHeapReader() const
{ return inherited::RawHeapReader(); }
BAbstractBufferedDataReader* HeapReader() const
{ return inherited::HeapReader(); }
inline const PackageFileSection& TOCSection() const
{ return fTOCSection; }
protected:
// from ReaderImplBase
virtual status_t ReadAttributeValue(uint8 type, uint8 encoding,
AttributeValue& _value);
private:
struct AttributeAttributeHandler;
struct EntryAttributeHandler;
struct RootAttributeHandler;
friend class PackageWriterImpl;
private:
status_t _ParseTOC(AttributeHandlerContext* context,
AttributeHandler* rootAttributeHandler);
status_t _GetTOCBuffer(size_t size,
const void*& _buffer);
private:
uint64 fHeapOffset;
uint64 fHeapSize;
PackageFileSection fTOCSection;
};
inline int
PackageReaderImpl::PackageFileFD() const
{
return FD();
}
inline uint64
PackageReaderImpl::HeapOffset() const
{
return fHeapOffset;
}
inline uint64
PackageReaderImpl::HeapSize() const
{
return fHeapSize;
}
} // namespace BPrivate
} // namespace BHPKG
} // namespace BPackageKit
#endif // _PACKAGE__HPKG__PRIVATE__PACKAGE_READER_IMPL_H_