| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: noise.h,v 1.2 1998/01/12 16:46:20 mdw Exp $ |
| 4 | * |
| 5 | * Collection of environmental noise |
| 6 | * |
| 7 | * (c) 1998 EBI |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of `become' |
| 13 | * |
| 14 | * `Become' is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * `Become' is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with `become'; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: noise.h,v $ |
| 32 | * Revision 1.2 1998/01/12 16:46:20 mdw |
| 33 | * Fix copyright date. |
| 34 | * |
| 35 | * Revision 1.1 1997/08/07 09:45:26 mdw |
| 36 | * New source file added to acquire environmental noise and add it to the |
| 37 | * randomness pool (see `rand.c'). |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | #ifndef NOISE_H |
| 42 | #define NOISE_H |
| 43 | |
| 44 | #ifdef __cplusplus |
| 45 | extern "C" { |
| 46 | #endif |
| 47 | |
| 48 | /*----- Functions provided ------------------------------------------------*/ |
| 49 | |
| 50 | /* --- @noise_acquire@ --- * |
| 51 | * |
| 52 | * Arguments: --- |
| 53 | * |
| 54 | * Returns: --- |
| 55 | * |
| 56 | * Use: Attempts to acquire an amount of random noise from the |
| 57 | * environment. A lot of it's not actually much good, but |
| 58 | * it's better than nothing. There's probably a bit or two's |
| 59 | * worth in each item which gets added. |
| 60 | */ |
| 61 | |
| 62 | extern void noise_acquire(void); |
| 63 | |
| 64 | /*----- That's all, folks -------------------------------------------------*/ |
| 65 | |
| 66 | #ifdef __cplusplus |
| 67 | } |
| 68 | #endif |
| 69 | |
| 70 | #endif |
| 71 | |