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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "utils/random-number-generator.h" | 5 #include "src/utils/random-number-generator.h" |
| 6 | 6 |
| 7 #include <stdio.h> | 7 #include <stdio.h> |
| 8 #include <stdlib.h> | 8 #include <stdlib.h> |
| 9 | 9 |
| 10 #include "flags.h" | 10 #include "src/flags.h" |
| 11 #include "platform/mutex.h" | 11 #include "src/platform/mutex.h" |
| 12 #include "platform/time.h" | 12 #include "src/platform/time.h" |
| 13 #include "utils.h" | 13 #include "src/utils.h" |
| 14 | 14 |
| 15 namespace v8 { | 15 namespace v8 { |
| 16 namespace internal { | 16 namespace internal { |
| 17 | 17 |
| 18 static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER; | 18 static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER; |
| 19 static RandomNumberGenerator::EntropySource entropy_source = NULL; | 19 static RandomNumberGenerator::EntropySource entropy_source = NULL; |
| 20 | 20 |
| 21 | 21 |
| 22 // static | 22 // static |
| 23 void RandomNumberGenerator::SetEntropySource(EntropySource source) { | 23 void RandomNumberGenerator::SetEntropySource(EntropySource source) { |
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| 121 seed_ = seed; | 121 seed_ = seed; |
| 122 return static_cast<int>(seed >> (48 - bits)); | 122 return static_cast<int>(seed >> (48 - bits)); |
| 123 } | 123 } |
| 124 | 124 |
| 125 | 125 |
| 126 void RandomNumberGenerator::SetSeed(int64_t seed) { | 126 void RandomNumberGenerator::SetSeed(int64_t seed) { |
| 127 seed_ = (seed ^ kMultiplier) & kMask; | 127 seed_ = (seed ^ kMultiplier) & kMask; |
| 128 } | 128 } |
| 129 | 129 |
| 130 } } // namespace v8::internal | 130 } } // namespace v8::internal |
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