The Tor Browser / file comparison
comparison: mfbt/ChaosMode.h
mfbt/ChaosMode.h
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:ec72a0c00763 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_ChaosMode_h | |
| 8 #define mozilla_ChaosMode_h | |
| 9 | |
| 10 #include <stdint.h> | |
| 11 #include <stdlib.h> | |
| 12 | |
| 13 namespace mozilla { | |
| 14 | |
| 15 /** | |
| 16 * When "chaos mode" is activated, code that makes implicitly nondeterministic | |
| 17 * choices is encouraged to make random and extreme choices, to test more | |
| 18 * code paths and uncover bugs. | |
| 19 */ | |
| 20 class ChaosMode | |
| 21 { | |
| 22 public: | |
| 23 static bool isActive() | |
| 24 { | |
| 25 // Flip this to true to activate chaos mode | |
| 26 return false; | |
| 27 } | |
| 28 | |
| 29 /** | |
| 30 * Returns a somewhat (but not uniformly) random uint32_t < aBound. | |
| 31 * Not to be used for anything except ChaosMode, since it's not very random. | |
| 32 */ | |
| 33 static uint32_t randomUint32LessThan(uint32_t aBound) | |
| 34 { | |
| 35 return uint32_t(rand()) % aBound; | |
| 36 } | |
| 37 }; | |
| 38 | |
| 39 } /* namespace mozilla */ | |
| 40 | |
| 41 #endif /* mozilla_ChaosMode_h */ |
