| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_D8_D8_PLATFORMS_H_ |
| #define V8_D8_D8_PLATFORMS_H_ |
| |
| #include <cstdint> |
| #include <memory> |
| |
| namespace v8 { |
| |
| class Isolate; |
| class Platform; |
| |
| // Returns a predictable v8::Platform implementation. |
| // orker threads are disabled, idle tasks are disallowed, and the time reported |
| // by {MonotonicallyIncreasingTime} is deterministic. |
| std::unique_ptr<Platform> MakePredictablePlatform( |
| std::unique_ptr<Platform> platform); |
| |
| // Returns a v8::Platform implementation which randomly delays tasks (both |
| // foreground and background) for stress-testing different interleavings. |
| // If {random_seed} is 0, a random seed is chosen. |
| std::unique_ptr<Platform> MakeDelayedTasksPlatform( |
| std::unique_ptr<Platform> platform, int64_t random_seed); |
| |
| // We use the task queue of {kProcessGlobalPredictablePlatformWorkerTaskQueue} |
| // for worker tasks of the {PredictablePlatform}. At the moment, {nullptr} is a |
| // valid value for the isolate. If this ever changes, we either have to allocate |
| // a core isolate, or refactor the implementation of worker tasks in the |
| // {PredictablePlatform}. |
| constexpr Isolate* kProcessGlobalPredictablePlatformWorkerTaskQueue = nullptr; |
| |
| } // namespace v8 |
| |
| #endif // V8_D8_D8_PLATFORMS_H_ |
