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 {
  18 namespace dom {
  19 namespace cache {
  20
  21 class CacheStreamControlParent;
  22 class Manager;
  23
  24 class StreamList final : public Context::Activity,
  25                          public SafeRefCounted<StreamList> {
  26  public:
  27   StreamList(SafeRefPtr<Manager> aManager, SafeRefPtr<Context> aContext);
  28
  29   Manager& GetManager() const;
  30   bool ShouldOpenStreamFor(const nsID& aId) const;
  31
  32   void SetStreamControl(CacheStreamControlParent* aStreamControl);
  33   void RemoveStreamControl(CacheStreamControlParent* aStreamControl);
  34
  35   void Activate(CacheId aCacheId);
  36
  37   void Add(const nsID& aId, nsCOMPtr<nsIInputStream>&& aStream);
  38   already_AddRefed<nsIInputStream> Extract(const nsID& aId);
  39
  40   void NoteClosed(const nsID& aId);
  41   void NoteClosedAll();
  42   void CloseAll();
  43
  44   // Context::Activity methods
  45   virtual void Cancel() override;
  46   virtual bool MatchesCacheId(CacheId aCacheId) const override;
  47
  48  private:
  49   struct Entry {
  50     explicit Entry(const nsID& aId, nsCOMPtr<nsIInputStream>&& aStream)
  51         : mId(aId), mStream(std::move(aStream)) {}
  52
  53     nsID mId;
  54     nsCOMPtr<nsIInputStream> mStream;
  55   };
  56   SafeRefPtr<Manager> mManager;
  57   SafeRefPtr<Context> mContext;
  58   CacheId mCacheId;
  59   CacheStreamControlParent* mStreamControl;
  60   nsTArray<Entry> mList;
  61   bool mActivated;
  62
  63  public:
  64   ~StreamList();
  65
  66   NS_DECL_OWNINGTHREAD
  67   MOZ_DECLARE_REFCOUNTED_TYPENAME(cache::StreamList)
  68 };
  69
  70 }  // namespace cache
  71 }  // namespace dom
  72 }  // namespace mozilla
  73
  74 #endif  // mozilla_dom_cache_StreamList_h