/usr/include/libpar2/datablock.h is in libpar2-dev 0.4-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | // This file is part of par2cmdline (a PAR 2.0 compatible file verification and
// repair tool). See http://parchive.sourceforge.net for details of PAR 2.0.
//
// Copyright (c) 2003 Peter Brian Clements
//
// par2cmdline is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// par2cmdline 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#ifndef __DATABLOCK_H__
#define __DATABLOCK_H__
class DiskFile;
// A Data Block is a block of data of a specific length at a specific
// offset in a specific file.
// It may be either a block of data in a source file from which recovery
// data is being computed, a block of recovery data in a recovery file, or
// a block in a target file that is being reconstructed.
class DataBlock
{
public:
DataBlock(void);
~DataBlock(void);
public:
// Set the length of the block
void SetLength(u64 length);
// Set the location of the block
void SetLocation(DiskFile *diskfile, u64 offset);
void ClearLocation(void);
public:
// Check to see if the location of the block has been set
bool IsSet(void) const;
// Which disk file is this data block in
DiskFile* GetDiskFile(void) const;
// What offset is the block located at
u64 GetOffset(void) const;
// What is the length of this block
u64 GetLength(void) const;
public:
// Open the disk file if it is not already open (so that it can be read)
bool Open(void);
// Read some of the data from disk into memory.
bool ReadData(u64 position, size_t size, void *buffer);
// Write some of the data from memory to disk
bool WriteData(u64 position, size_t size, const void *buffer, size_t &wrote);
protected:
DiskFile *diskfile; // Which disk file is the block associated with
u64 offset; // What is the file offset
u64 length; // How large is the block
};
// Construct the data block
inline DataBlock::DataBlock(void)
{
diskfile = 0;
offset = 0;
length = 0;
}
// Destroy the data block
inline DataBlock::~DataBlock(void)
{
}
// Set the length of the block
inline void DataBlock::SetLength(u64 _length)
{
length = _length;
}
// Set the location of the block
inline void DataBlock::SetLocation(DiskFile *_diskfile, u64 _offset)
{
diskfile = _diskfile;
offset = _offset;
}
// Clear the location of the block
inline void DataBlock::ClearLocation(void)
{
diskfile = 0;
offset = 0;
}
// Check to see of the location is known
inline bool DataBlock::IsSet(void) const
{
return (diskfile != 0);
}
// Which disk file is this data block in
inline DiskFile* DataBlock::GetDiskFile(void) const
{
return diskfile;
}
// What offset is the block located at
inline u64 DataBlock::GetOffset(void) const
{
return offset;
}
// What is the length of this block
inline u64 DataBlock::GetLength(void) const
{
return length;
}
#endif // __DATABLOCK_H__
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