Oliver Tappe 0d6b3b20e1 More work on package kit:
* added class BPackageInfo, which contains packaging attributes of
  a package (the values relevant for package management) 
* implemented parser (mostly) for reading a BPackageInfo from a config
  file (.PackageInfo) in order to pass them on to the PackageWriter 
  when creating a package
* pulled hpkg-related stuff from bin/package into the package kit
* adjusted packagefs-Volume to skip .PackageInfo files when populating
  the mountpoint, as those files shouldn't appear as part of an
  activated package


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40301 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-01-27 23:17:03 +00:00

76 lines
1.2 KiB
C++

/*
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef DATA_READER_H
#define DATA_READER_H
#include <SupportDefs.h>
namespace BPackageKit {
namespace BHaikuPackage {
namespace BPrivate {
class DataReader {
public:
virtual ~DataReader();
virtual status_t ReadData(off_t offset, void* buffer,
size_t size) = 0;
};
class FDDataReader : public DataReader {
public:
FDDataReader(int fd);
virtual status_t ReadData(off_t offset, void* buffer,
size_t size);
private:
int fFD;
};
class AttributeDataReader : public DataReader {
public:
AttributeDataReader(int fd,
const char* attribute, uint32 type);
virtual status_t ReadData(off_t offset, void* buffer,
size_t size);
private:
int fFD;
uint32 fType;
const char* fAttribute;
};
class BufferDataReader : public DataReader {
public:
BufferDataReader(const void* data, size_t size);
virtual status_t ReadData(off_t offset, void* buffer,
size_t size);
private:
const void* fData;
size_t fSize;
};
} // namespace BPrivate
} // namespace BHaikuPackage
} // namespace BPackageKit
#endif // DATA_READER_H