zstd/programs/datagen.h
Yann Collet 32fb407c9d updated a bunch of headers
for the new license
2017-08-18 16:52:05 -07:00

30 lines
1.1 KiB
C

/*
* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
*/
#ifndef DATAGEN_H
#define DATAGEN_H
#include <stddef.h> /* size_t */
void RDG_genStdout(unsigned long long size, double matchProba, double litProba, unsigned seed);
void RDG_genBuffer(void* buffer, size_t size, double matchProba, double litProba, unsigned seed);
/*!RDG_genBuffer
Generate 'size' bytes of compressible data into 'buffer'.
Compressibility can be controlled using 'matchProba', which is floating point value between 0 and 1.
'LitProba' is optional, it affect variability of individual bytes. If litProba==0.0, default value will be used.
Generated data pattern can be modified using different 'seed'.
For a triplet (matchProba, litProba, seed), the function always generate the same content.
RDG_genStdout
Same as RDG_genBuffer, but generates data into stdout
*/
#endif