dom/cache/StreamList.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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_cache_StreamList_h
   8 #define mozilla_dom_cache_StreamList_h
   9
  10 #include "mozilla/dom/SafeRefPtr.h"
  11 #include "mozilla/dom/cache/Context.h"
  12 #include "mozilla/dom/cache/Types.h"
  13 #include "nsTArray.h"
  14
  15 class nsIInputStream;
  16
  17 namespace mozilla::dom::cache {
  18
  19 class CacheStreamControlParent;
  20 class Manager;
  21
  22 class StreamList final : public Context::Activity,
  23                          public SafeRefCounted<StreamList> {
  24  public:
  25   StreamList(SafeRefPtr<Manager> aManager, SafeRefPtr<Context> aContext);
  26
  27   Manager& GetManager() const;
  28   bool ShouldOpenStreamFor(const nsID& aId) const;
  29
  30   void SetStreamControl(CacheStreamControlParent* aStreamControl);
  31   void RemoveStreamControl(CacheStreamControlParent* aStreamControl);
  32
  33   void Activate(CacheId aCacheId);
  34
  35   void Add(const nsID& aId, nsCOMPtr<nsIInputStream>&& aStream);
  36   already_AddRefed<nsIInputStream> Extract(const nsID& aId);
  37
  38   void NoteClosed(const nsID& aId);
  39   void NoteClosedAll();
  40   void CloseAll();
  41
  42   // Context::Activity methods
  43   virtual void Cancel() override;
  44   virtual bool MatchesCacheId(CacheId aCacheId) const override;
  45
  46  private:
  47   struct Entry {
  48     explicit Entry(const nsID& aId, nsCOMPtr<nsIInputStream>&& aStream)
  49         : mId(aId), mStream(std::move(aStream)) {}
  50
  51     nsID mId;
  52     nsCOMPtr<nsIInputStream> mStream;
  53   };
  54   SafeRefPtr<Manager> mManager;
  55   SafeRefPtr<Context> mContext;
  56   CacheId mCacheId;
  57   CacheStreamControlParent* mStreamControl;
  58   nsTArray<Entry> mList;
  59   bool mActivated;
  60
  61  public:
  62   ~StreamList();
  63
  64   NS_DECL_OWNINGTHREAD
  65   MOZ_DECLARE_REFCOUNTED_TYPENAME(cache::StreamList)
  66 };
  67
  68 }  // namespace mozilla::dom::cache
  69
  70 #endif  // mozilla_dom_cache_StreamList_h