1 /* 2 * Copyright (c) Meta Platforms, Inc. and affiliates. 3 * All rights reserved. 4 * 5 * This source code is licensed under both the BSD-style license (found in the 6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found 7 * in the COPYING file in the root directory of this source tree). 8 * You may select, at your option, one of the above-listed licenses. 9 */ 10 11 12 #ifndef DATAGEN_H 13 #define DATAGEN_H 14 15 #include <stddef.h> /* size_t */ 16 17 #if defined (__cplusplus) 18 extern "C" { 19 #endif 20 21 void RDG_genStdout(unsigned long long size, double matchProba, double litProba, unsigned seed); 22 void RDG_genBuffer(void* buffer, size_t size, double matchProba, double litProba, unsigned seed); 23 /*!RDG_genBuffer 24 Generate 'size' bytes of compressible data into 'buffer'. 25 Compressibility can be controlled using 'matchProba', which is floating point value between 0 and 1. 26 'LitProba' is optional, it affect variability of individual bytes. If litProba==0.0, default value will be used. 27 Generated data pattern can be modified using different 'seed'. 28 For a triplet (matchProba, litProba, seed), the function always generate the same content. 29 30 RDG_genStdout 31 Same as RDG_genBuffer, but generates data into stdout 32 */ 33 34 #if defined (__cplusplus) 35 } /* extern "C" */ 36 #endif 37 38 #endif 39