dom/base/TimeoutBudgetManager.cpp

   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 #include "TimeoutBudgetManager.h"
   8
   9 #include "mozilla/dom/Timeout.h"
  10
  11 namespace mozilla::dom {
  12
  13 /* static */ TimeoutBudgetManager& TimeoutBudgetManager::Get() {
  14   static TimeoutBudgetManager gTimeoutBudgetManager;
  15   return gTimeoutBudgetManager;
  16 }
  17
  18 void TimeoutBudgetManager::StartRecording(const TimeStamp& aNow) {
  19   mStart = aNow;
  20 }
  21
  22 void TimeoutBudgetManager::StopRecording() { mStart = TimeStamp(); }
  23
  24 TimeDuration TimeoutBudgetManager::RecordExecution(const TimeStamp& aNow,
  25                                                    const Timeout* aTimeout) {
  26   if (!mStart) {
  27     // If we've started a sync operation mStart might be null, in
  28     // which case we should not record this piece of execution.
  29     return TimeDuration();
  30   }
  31
  32   return aNow - mStart;
  33 }
  34
  35 }  // namespace mozilla::dom