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comparison: security/sandbox/chromium/base/rand_util.h
security/sandbox/chromium/base/rand_util.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:88ffb4fb7ca1 |
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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef BASE_RAND_UTIL_H_ | |
| 6 #define BASE_RAND_UTIL_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/base_export.h" | |
| 11 #include "base/basictypes.h" | |
| 12 | |
| 13 namespace base { | |
| 14 | |
| 15 // Returns a random number in range [0, kuint64max]. Thread-safe. | |
| 16 BASE_EXPORT uint64 RandUint64(); | |
| 17 | |
| 18 // Returns a random number between min and max (inclusive). Thread-safe. | |
| 19 BASE_EXPORT int RandInt(int min, int max); | |
| 20 | |
| 21 // Returns a random number in range [0, range). Thread-safe. | |
| 22 // | |
| 23 // Note that this can be used as an adapter for std::random_shuffle(): | |
| 24 // Given a pre-populated |std::vector<int> myvector|, shuffle it as | |
| 25 // std::random_shuffle(myvector.begin(), myvector.end(), base::RandGenerator); | |
| 26 BASE_EXPORT uint64 RandGenerator(uint64 range); | |
| 27 | |
| 28 // Returns a random double in range [0, 1). Thread-safe. | |
| 29 BASE_EXPORT double RandDouble(); | |
| 30 | |
| 31 // Given input |bits|, convert with maximum precision to a double in | |
| 32 // the range [0, 1). Thread-safe. | |
| 33 BASE_EXPORT double BitsToOpenEndedUnitInterval(uint64 bits); | |
| 34 | |
| 35 // Fills |output_length| bytes of |output| with random data. | |
| 36 // | |
| 37 // WARNING: | |
| 38 // Do not use for security-sensitive purposes. | |
| 39 // See crypto/ for cryptographically secure random number generation APIs. | |
| 40 BASE_EXPORT void RandBytes(void* output, size_t output_length); | |
| 41 | |
| 42 // Fills a string of length |length| with with random data and returns it. | |
| 43 // |length| should be nonzero. | |
| 44 // | |
| 45 // Note that this is a variation of |RandBytes| with a different return type. | |
| 46 // | |
| 47 // WARNING: | |
| 48 // Do not use for security-sensitive purposes. | |
| 49 // See crypto/ for cryptographically secure random number generation APIs. | |
| 50 BASE_EXPORT std::string RandBytesAsString(size_t length); | |
| 51 | |
| 52 #if defined(OS_POSIX) | |
| 53 BASE_EXPORT int GetUrandomFD(); | |
| 54 #endif | |
| 55 | |
| 56 } // namespace base | |
| 57 | |
| 58 #endif // BASE_RAND_UTIL_H_ |
