dom/time/DateCacheCleaner.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   4  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "DateCacheCleaner.h"
   7
   8 #include "jsapi.h"
   9 #include "mozilla/dom/ScriptSettings.h"
  10 #include "mozilla/ClearOnShutdown.h"
  11 #include "mozilla/Hal.h"
  12 #include "mozilla/StaticPtr.h"
  13
  14 using namespace mozilla::hal;
  15
  16 namespace mozilla {
  17 namespace dom {
  18 namespace time {
  19
  20 class DateCacheCleaner : public SystemTimezoneChangeObserver
  21 {
  22 public:
  23   DateCacheCleaner()
  24   {
  25     RegisterSystemTimezoneChangeObserver(this);
  26   }
  27
  28   ~DateCacheCleaner()
  29   {
  30     UnregisterSystemTimezoneChangeObserver(this);
  31   }
  32   void Notify(const SystemTimezoneChangeInformation& aSystemTimezoneChangeInfo)
  33   {
  34     mozilla::AutoSafeJSContext cx;
  35     JS_ClearDateCaches(cx);
  36   }
  37
  38 };
  39
  40 StaticAutoPtr<DateCacheCleaner> sDateCacheCleaner;
  41
  42 void
  43 InitializeDateCacheCleaner()
  44 {
  45   if (!sDateCacheCleaner) {
  46     sDateCacheCleaner = new DateCacheCleaner();
  47     ClearOnShutdown(&sDateCacheCleaner);
  48   }
  49 }
  50
  51 } // namespace time
  52 } // namespace dom
  53 } // namespace mozilla