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
134
|
/*
LZ4io.h - LZ4 File/Stream Interface
Copyright (C) Yann Collet 2011-2016
GPL v2 License
This program 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.
This program 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.
You can contact the author at :
- LZ4 source repository : https://github.com/lz4/lz4
- LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
*/
/*
Note : this is stand-alone program.
It is not part of LZ4 compression library, it is a user code of the LZ4 library.
- The license of LZ4 library is BSD.
- The license of xxHash library is BSD.
- The license of this source file is GPLv2.
*/
#ifndef LZ4IO_H_237902873
#define LZ4IO_H_237902873
/*--- Dependency ---*/
#include <stddef.h> /* size_t */
/* ************************************************** */
/* Special input/output values */
/* ************************************************** */
#define stdinmark "stdin"
#define stdoutmark "stdout"
#define NULL_OUTPUT "null"
#ifdef _WIN32
#define nulmark "nul"
#else
#define nulmark "/dev/null"
#endif
/* ************************************************** */
/* ****************** Type Definitions ************** */
/* ************************************************** */
typedef struct LZ4IO_prefs_s LZ4IO_prefs_t;
LZ4IO_prefs_t* LZ4IO_defaultPreferences(void);
void LZ4IO_freePreferences(LZ4IO_prefs_t* prefs);
/* Size in bytes of a legacy block header in little-endian format */
#define LZIO_LEGACY_BLOCK_HEADER_SIZE 4
/* ************************************************** */
/* ****************** Functions ********************* */
/* ************************************************** */
/* if output_filename == stdoutmark, writes to stdout */
int LZ4IO_compressFilename(const char* input_filename, const char* output_filename, int compressionlevel, const LZ4IO_prefs_t* prefs);
int LZ4IO_decompressFilename(const char* input_filename, const char* output_filename, const LZ4IO_prefs_t* prefs);
/* if suffix == stdoutmark, writes to stdout */
int LZ4IO_compressMultipleFilenames(const char** inFileNamesTable, int ifntSize, const char* suffix, int compressionlevel, const LZ4IO_prefs_t* prefs);
int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSize, const char* suffix, const LZ4IO_prefs_t* prefs);
/* ************************************************** */
/* ****************** Parameters ******************** */
/* ************************************************** */
int LZ4IO_setDictionaryFilename(LZ4IO_prefs_t* const prefs, const char* dictionaryFilename);
/* Default setting : passThrough = 0;
return : passThrough mode (0/1) */
int LZ4IO_setPassThrough(LZ4IO_prefs_t* const prefs, int yes);
/* Default setting : overwrite = 1;
return : overwrite mode (0/1) */
int LZ4IO_setOverwrite(LZ4IO_prefs_t* const prefs, int yes);
/* Default setting : testMode = 0;
return : testMode (0/1) */
int LZ4IO_setTestMode(LZ4IO_prefs_t* const prefs, int yes);
/* blockSizeID : valid values : 4-5-6-7
return : 0 if error, blockSize if OK */
size_t LZ4IO_setBlockSizeID(LZ4IO_prefs_t* const prefs, unsigned blockSizeID);
/* blockSize : valid values : 32 -> 4MB
return : 0 if error, actual blocksize if OK */
size_t LZ4IO_setBlockSize(LZ4IO_prefs_t* const prefs, size_t blockSize);
/* Default setting : independent blocks */
typedef enum { LZ4IO_blockLinked=0, LZ4IO_blockIndependent} LZ4IO_blockMode_t;
int LZ4IO_setBlockMode(LZ4IO_prefs_t* const prefs, LZ4IO_blockMode_t blockMode);
/* Default setting : no block checksum */
int LZ4IO_setBlockChecksumMode(LZ4IO_prefs_t* const prefs, int xxhash);
/* Default setting : stream checksum enabled */
int LZ4IO_setStreamChecksumMode(LZ4IO_prefs_t* const prefs, int xxhash);
/* Default setting : 0 (no notification) */
int LZ4IO_setNotificationLevel(int level);
/* Default setting : 0 (disabled) */
int LZ4IO_setSparseFile(LZ4IO_prefs_t* const prefs, int enable);
/* Default setting : 0 == no content size present in frame header */
int LZ4IO_setContentSize(LZ4IO_prefs_t* const prefs, int enable);
/* Default setting : 0 == src file preserved */
void LZ4IO_setRemoveSrcFile(LZ4IO_prefs_t* const prefs, unsigned flag);
/* Default setting : 0 == favor compression ratio
* Note : 1 only works for high compression levels (10+) */
void LZ4IO_favorDecSpeed(LZ4IO_prefs_t* const prefs, int favor);
/* implement --list
* @return 0 on success, 1 on error */
int LZ4IO_displayCompressedFilesInfo(const char** inFileNames, size_t ifnIdx);
#endif /* LZ4IO_H_237902873 */
|
