| 1 | /** @file
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| 2 | * InnoTek Portable Runtime - Random Numbers and Byte Streams.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License as published by the Free Software Foundation,
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| 12 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 13 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 14 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * If you received this file as part of a commercial VirtualBox
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| 17 | * distribution, then only the terms of your commercial VirtualBox
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| 18 | * license agreement apply instead of the previous paragraph.
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| 19 | */
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| 20 |
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| 21 | #ifndef __iprt_rand_h__
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| 22 | #define __iprt_rand_h__
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| 23 |
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| 24 | #include <iprt/cdefs.h>
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| 25 | #include <iprt/types.h>
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| 26 |
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| 27 | __BEGIN_DECLS
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| 28 |
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| 29 | /** @defgroup grp_rt_rand RTRand - Random Numbers and Byte Streams
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| 30 | * @ingroup grp_rt
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | /**
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| 35 | * Fills a buffer with random bytes.
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| 36 | *
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| 37 | * @param pv Where to store the random bytes.
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| 38 | * @param cb Number of bytes to generate.
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| 39 | */
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| 40 | RTDECL(void) RTRandBytes(void *pv, size_t cb);
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| 41 |
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| 42 | /**
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| 43 | * Generate a 32-bit signed random number in the set [i32First..i32Last].
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| 44 | *
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| 45 | * @returns The random number.
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| 46 | * @param i32First First number in the set.
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| 47 | * @param i32Last Last number in the set.
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| 48 | */
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| 49 | RTDECL(int32_t) RTRandS32Ex(int32_t i32First, int32_t i32Last);
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| 50 |
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| 51 | /**
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| 52 | * Generate a 32-bit signed random number.
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| 53 | *
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| 54 | * @returns The random number.
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| 55 | */
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| 56 | RTDECL(int32_t) RTRandS32(void);
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| 57 |
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| 58 | /**
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| 59 | * Generate a 32-bit unsigned random number in the set [u32First..u32Last].
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| 60 | *
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| 61 | * @returns The random number.
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| 62 | * @param u32First First number in the set.
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| 63 | * @param u32Last Last number in the set.
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| 64 | */
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| 65 | RTDECL(uint32_t) RTRandU32Ex(uint32_t u32First, uint32_t u32Last);
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| 66 |
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| 67 | /**
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| 68 | * Generate a 32-bit unsigned random number.
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| 69 | *
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| 70 | * @returns The random number.
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| 71 | */
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| 72 | RTDECL(uint32_t) RTRandU32(void);
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| 73 |
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| 74 | /**
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| 75 | * Generate a 32-bit signed random number in the set [i32First..i32Last].
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| 76 | *
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| 77 | * @returns The random number.
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| 78 | * @param i32First First number in the set.
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| 79 | * @param i32Last Last number in the set.
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| 80 | */
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| 81 | RTDECL(int64_t) RTRandS64Ex(int64_t i64First, int64_t i64Last);
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| 82 |
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| 83 | /**
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| 84 | * Generate a 64-bit signed random number.
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| 85 | *
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| 86 | * @returns The random number.
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| 87 | */
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| 88 | RTDECL(int64_t) RTRandS64(void);
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| 89 |
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| 90 | /**
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| 91 | * Generate a 64-bit unsigned random number in the set [u64First..u64Last].
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| 92 | *
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| 93 | * @returns The random number.
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| 94 | * @param u64First First number in the set.
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| 95 | * @param u64Last Last number in the set.
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| 96 | */
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| 97 | RTDECL(uint64_t) RTRandU64Ex(uint64_t u64First, uint64_t u64Last);
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| 98 |
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| 99 | /**
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| 100 | * Generate a 64-bit unsigned random number.
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| 101 | *
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| 102 | * @returns The random number.
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| 103 | */
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| 104 | RTDECL(uint64_t) RTRandU64(void);
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| 105 |
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| 106 | /** @} */
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| 107 |
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| 108 | __END_DECLS
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| 109 |
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| 110 |
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| 111 | #endif
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| 112 |
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