Line data    Source code

       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 "mozilla/ClearOnShutdown.h"
       8             : 
       9             : namespace mozilla {
      10             : namespace ClearOnShutdown_Internal {
      11             : 
      12             : Array<StaticAutoPtr<ShutdownList>,
      13           3 :       static_cast<size_t>(ShutdownPhase::ShutdownPhase_Length)> sShutdownObservers;
      14             : ShutdownPhase sCurrentShutdownPhase = ShutdownPhase::NotInShutdown;
      15             : 
      16             : } // namespace ClearOnShutdown_Internal
      17             : 
      18             : // Called when XPCOM is shutting down, after all shutdown notifications have
      19             : // been sent and after all threads' event loops have been purged.
      20             : void
      21           0 : KillClearOnShutdown(ShutdownPhase aPhase)
      22             : {
      23             :   using namespace ClearOnShutdown_Internal;
      24             : 
      25           0 :   MOZ_ASSERT(NS_IsMainThread());
      26             :   // Shutdown only goes one direction...
      27           0 :   MOZ_ASSERT(static_cast<size_t>(sCurrentShutdownPhase) < static_cast<size_t>(aPhase));
      28             : 
      29             :   // It's impossible to add an entry for a "past" phase; this is blocked in
      30             :   // ClearOnShutdown, but clear them out anyways in case there are phases
      31             :   // that weren't passed to KillClearOnShutdown.
      32           0 :   for (size_t phase = static_cast<size_t>(ShutdownPhase::First);
      33           0 :        phase <= static_cast<size_t>(aPhase);
      34             :        phase++) {
      35           0 :     if (sShutdownObservers[static_cast<size_t>(phase)]) {
      36           0 :       while (ShutdownObserver* observer = sShutdownObservers[static_cast<size_t>(phase)]->popFirst()) {
      37           0 :         observer->Shutdown();
      38           0 :         delete observer;
      39           0 :       }
      40           0 :       sShutdownObservers[static_cast<size_t>(phase)] = nullptr;
      41             :     }
      42             :   }
      43           0 : }
      44             : 
      45             : } // namespace mozilla