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
|
// 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 __MAINPACKET_H__
#define __MAINPACKET_H__
// The main packet ties all other critical packets together.
// It specifies the block size to use for both verification of
// files and for the Reed Solomon computation.
// It also specifies how many of the source files are repairable
// and in what order they should be processed.
class MainPacket : public CriticalPacket
{
public:
// Construct the packet
MainPacket(void) {};
~MainPacket(void) {};
public:
// Construct the main packet from the source file list and block size.
// "sourcefiles" will be sorted base on their FileId value.
bool Create(vector<Par2CreatorSourceFile*> &sourcefiles,
u64 _blocksize);
// Load a main packet from a specified file
bool Load(DiskFile *diskfile, u64 offset, PACKET_HEADER &header);
public:
// Get the set id.
const MD5Hash& SetId(void) const;
// Get the block size.
u64 BlockSize(void) const;
// Get the file counts.
u32 RecoverableFileCount(void) const;
u32 TotalFileCount(void) const;
// Get the fileid of one file
const MD5Hash& FileId(u32 filenumber) const;
protected:
u64 blocksize;
u32 totalfilecount;
u32 recoverablefilecount;
};
// Get the data block size
inline u64 MainPacket::BlockSize(void) const
{
assert(packetdata != 0);
return blocksize;
}
// Get the number of recoverable files
inline u32 MainPacket::RecoverableFileCount(void) const
{
assert(packetdata != 0);
return recoverablefilecount;
}
// Get the total number of files
inline u32 MainPacket::TotalFileCount(void) const
{
assert(packetdata != 0);
return totalfilecount;
}
// Get the file id hash of one of the files
inline const MD5Hash& MainPacket::FileId(u32 filenumber) const
{
assert(packetdata != 0);
assert(filenumber<totalfilecount);
// return ((const MAINPACKET*)packetdata)->fileid()[filenumber];
return ((const MAINPACKET*)packetdata)->fileid[filenumber];
}
inline const MD5Hash& MainPacket::SetId(void) const
{
return ((const MAINPACKET*)packetdata)->header.setid;
}
#endif // __MAINPACKET_H__
|
