| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "core/dom/IdleDeadline.h" |
| |
| #include "core/timing/PerformanceBase.h" |
| #include "platform/scheduler/child/web_scheduler.h" |
| #include "platform/wtf/CurrentTime.h" |
| #include "public/platform/Platform.h" |
| |
| namespace blink { |
| |
| IdleDeadline::IdleDeadline(double deadline_seconds, CallbackType callback_type) |
| : deadline_seconds_(deadline_seconds), callback_type_(callback_type) {} |
| |
| double IdleDeadline::timeRemaining() const { |
| double time_remaining = deadline_seconds_ - MonotonicallyIncreasingTime(); |
| if (time_remaining < 0) { |
| time_remaining = 0; |
| } else if (Platform::Current() |
| ->CurrentThread() |
| ->Scheduler() |
| ->ShouldYieldForHighPriorityWork()) { |
| time_remaining = 0; |
| } |
| |
| return 1000.0 * PerformanceBase::ClampTimeResolution(time_remaining); |
| } |
| |
| } // namespace blink |
