dom/messagechannel/MessagePortService.h

   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 file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_MessagePortService_h
   8 #define mozilla_dom_MessagePortService_h
   9
  10 #include "nsClassHashtable.h"
  11 #include "nsHashKeys.h"
  12 #include "nsISupportsImpl.h"
  13
  14 namespace mozilla::dom {
  15
  16 class MessagePortParent;
  17 class SharedMessageBody;
  18
  19 class MessagePortService final {
  20  public:
  21   NS_INLINE_DECL_REFCOUNTING(MessagePortService)
  22
  23   // Needs to be public for the MOZ_DECLARE_RELOCATE_USING_MOVE_CONSTRUCTOR
  24   // macro.
  25   struct NextParent;
  26
  27   static MessagePortService* Get();
  28   static MessagePortService* GetOrCreate();
  29
  30   bool RequestEntangling(MessagePortParent* aParent,
  31                          const nsID& aDestinationUUID,
  32                          const uint32_t& aSequenceID);
  33
  34   bool DisentanglePort(MessagePortParent* aParent,
  35                        FallibleTArray<RefPtr<SharedMessageBody>> aMessages);
  36
  37   bool ClosePort(MessagePortParent* aParent);
  38
  39   bool PostMessages(MessagePortParent* aParent,
  40                     FallibleTArray<RefPtr<SharedMessageBody>> aMessages);
  41
  42   void ParentDestroy(MessagePortParent* aParent);
  43
  44   bool ForceClose(const nsID& aUUID, const nsID& aDestinationUUID,
  45                   const uint32_t& aSequenceID);
  46
  47  private:
  48   ~MessagePortService() = default;
  49
  50   void CloseAll(const nsID& aUUID, bool aForced = false);
  51   void MaybeShutdown();
  52
  53   class MessagePortServiceData;
  54
  55   nsClassHashtable<nsIDHashKey, MessagePortServiceData> mPorts;
  56 };
  57
  58 }  // namespace mozilla::dom
  59
  60 #endif  // mozilla_dom_MessagePortService_h