netwerk/cache2/CacheStorage.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef CacheStorage__h__
   6 #define CacheStorage__h__
   7
   8 #include "nsICacheStorage.h"
   9 #include "CacheEntry.h"
  10 #include "LoadContextInfo.h"
  11
  12 #include "nsRefPtrHashtable.h"
  13 #include "nsThreadUtils.h"
  14 #include "nsCOMPtr.h"
  15 #include "nsILoadContextInfo.h"
  16 #include "nsIApplicationCache.h"
  17 #include "nsICacheEntryDoomCallback.h"
  18
  19 class nsIURI;
  20 class nsIApplicationCache;
  21
  22 namespace mozilla {
  23 namespace net {
  24
  25 // This dance is needed to make CacheEntryTable declarable-only in headers
  26 // w/o exporting CacheEntry.h file to make nsNetModule.cpp compilable.
  27 typedef nsRefPtrHashtable<nsCStringHashKey, CacheEntry> TCacheEntryTable;
  28 class CacheEntryTable : public TCacheEntryTable
  29 {
  30 public:
  31   enum EType
  32   {
  33     MEMORY_ONLY,
  34     ALL_ENTRIES
  35   };
  36
  37   explicit CacheEntryTable(EType aType) : mType(aType) { }
  38   EType Type() const
  39   {
  40     return mType;
  41   }
  42 private:
  43   EType const mType;
  44   CacheEntryTable() MOZ_DELETE;
  45 };
  46
  47 class CacheStorage : public nsICacheStorage
  48 {
  49   NS_DECL_THREADSAFE_ISUPPORTS
  50   NS_DECL_NSICACHESTORAGE
  51
  52 public:
  53   CacheStorage(nsILoadContextInfo* aInfo,
  54                bool aAllowDisk,
  55                bool aLookupAppCache);
  56
  57 protected:
  58   virtual ~CacheStorage();
  59
  60   nsresult ChooseApplicationCache(nsIURI* aURI, nsIApplicationCache** aCache);
  61
  62   nsRefPtr<LoadContextInfo> mLoadContextInfo;
  63   bool mWriteToDisk : 1;
  64   bool mLookupAppCache : 1;
  65
  66 public:
  67   nsILoadContextInfo* LoadInfo() const { return mLoadContextInfo; }
  68   bool WriteToDisk() const { return mWriteToDisk && !mLoadContextInfo->IsPrivate(); }
  69   bool LookupAppCache() const { return mLookupAppCache; }
  70 };
  71
  72 } // net
  73 } // mozilla
  74
  75 #endif