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ExPkg/expkg/vendor/lz4/programs/lz4conf.h
2025-08-06 13:29:28 +08:00

73 lines
2.3 KiB
C

/*
LZ4conf.h - compile-time parameters
Copyright (c) Yann Collet. All rights reserved.
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
*/
#ifndef LZ4CONF_H_32432
#define LZ4CONF_H_32432
/* Default compression level.
* Can be overridden by environment variable LZ4_CLEVEL.
* Is overridden at runtime by command -# */
#ifndef LZ4_CLEVEL_DEFAULT
# define LZ4_CLEVEL_DEFAULT 1
#endif
/* Determines if multithreading is enabled or not
* Default: enabled on Windows, disabled on other platforms */
#ifndef LZ4IO_MULTITHREAD
# ifdef _WIN32
/* Windows supports Completion Ports */
# define LZ4IO_MULTITHREAD 1
# else
/* Requires <pthread> support.
* Can't be reliably and portably tested at source code level
* so must be set a build level */
# define LZ4IO_MULTITHREAD 0
# endif
#endif
/* Determines default nb of threads for compression
* Default value is 0, which means "auto" :
* nb of threads is determined from detected local cpu.
* Can be overridden by Environment Variable LZ4_NBWORKERS.
* Can be overridden at runtime using -T# command */
#ifndef LZ4_NBWORKERS_DEFAULT
# define LZ4_NBWORKERS_DEFAULT 0
#endif
/* Maximum nb of compression threads selectable at runtime */
#ifndef LZ4_NBWORKERS_MAX
# define LZ4_NBWORKERS_MAX 200
#endif
/* Determines default lz4 block size when none provided.
* Default value is 7, which represents 4 MB.
* Can be overridden at runtime using -B# command */
#ifndef LZ4_BLOCKSIZEID_DEFAULT
# define LZ4_BLOCKSIZEID_DEFAULT 7
#endif
#endif /* LZ4CONF_H_32432 */