mirror of
https://github.com/facebook/zstd.git
synced 2025-10-17 00:07:08 -04:00
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
/*
|
|
dictBuilder.h
|
|
Copyright (C) Yann Collet 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 :
|
|
- zstd source repository : https://github.com/Cyan4973/zstd
|
|
- ztsd public forum : https://groups.google.com/forum/#!forum/lz4c
|
|
*/
|
|
|
|
/* This library is designed for a single-threaded console application.
|
|
* It exit() and printf() into stderr when it encounters an error condition. */
|
|
|
|
/*-*************************************
|
|
* Version
|
|
***************************************/
|
|
#define DiB_VERSION_MAJOR 0 /* for breaking interface changes */
|
|
#define DiB_VERSION_MINOR 0 /* for new (non-breaking) interface capabilities */
|
|
#define DiB_VERSION_RELEASE 1 /* for tweaks, bug-fixes, or development */
|
|
#define DiB_VERSION_NUMBER (DiB_VERSION_MAJOR *100*100 + DiB_VERSION_MINOR *100 + DiB_VERSION_RELEASE)
|
|
unsigned DiB_versionNumber (void);
|
|
|
|
|
|
/*-*************************************
|
|
* Public functions
|
|
***************************************/
|
|
/*! DiB_trainDictionary
|
|
Train a dictionary from a set of files provided by @fileNamesTable
|
|
Resulting dictionary is written in file @dictFileName.
|
|
@selectivityLevel change criteria for insertion into the dictionary (more => bigger selection => larger dictionary)
|
|
@compressionLevel can be used to target a specific compression level of zstd. 0 means "default".
|
|
@result : 0 == ok
|
|
*/
|
|
int DiB_trainDictionary(const char* dictFileName, unsigned maxDictSize,
|
|
unsigned selectivityLevel, unsigned compressionLevel,
|
|
const char** fileNamesTable, unsigned nbFiles);
|
|
|
|
|
|
/*! DiB_setNotificationLevel
|
|
Set amount of notification to be displayed on the console.
|
|
0 = no console notification (default).
|
|
Note : not thread-safe (use a global constant)
|
|
*/
|
|
void DiB_setNotificationLevel(unsigned l);
|