LCOV - code coverage report
Current view: directory - dom/indexedDB - OpenDatabaseHelper.h (source / functions) Found Hit Coverage
Test: app.info Lines: 16 16 100.0 %
Date: 2012-06-02 Functions: 7 7 100.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is Indexed Database.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * The Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Ben Turner <bent.mozilla@gmail.com>
      23                 :  *   Kyle Huey <me@kylehuey.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef mozilla_dom_indexeddb_opendatabasehelper_h__
      40                 : #define mozilla_dom_indexeddb_opendatabasehelper_h__
      41                 : 
      42                 : #include "AsyncConnectionHelper.h"
      43                 : #include "DatabaseInfo.h"
      44                 : #include "IDBDatabase.h"
      45                 : #include "IDBRequest.h"
      46                 : 
      47                 : #include "nsIRunnable.h"
      48                 : 
      49                 : class mozIStorageConnection;
      50                 : 
      51                 : BEGIN_INDEXEDDB_NAMESPACE
      52                 : 
      53                 : class OpenDatabaseHelper : public HelperBase
      54             304 : {
      55                 : public:
      56              76 :   OpenDatabaseHelper(IDBOpenDBRequest* aRequest,
      57                 :                      const nsAString& aName,
      58                 :                      const nsACString& aASCIIOrigin,
      59                 :                      PRUint64 aRequestedVersion,
      60                 :                      bool aForDeletion)
      61                 :     : HelperBase(aRequest), mOpenDBRequest(aRequest), mName(aName),
      62                 :       mASCIIOrigin(aASCIIOrigin), mRequestedVersion(aRequestedVersion),
      63                 :       mForDeletion(aForDeletion), mDatabaseId(nsnull), mCurrentVersion(0),
      64                 :       mLastObjectStoreId(0), mLastIndexId(0), mState(eCreated),
      65              76 :       mResultCode(NS_OK), mLoadDBMetadata(false)
      66                 :   {
      67              76 :     NS_ASSERTION(!aForDeletion || !aRequestedVersion,
      68                 :                  "Can't be for deletion and request a version!");
      69              76 :   }
      70                 : 
      71                 :   NS_DECL_ISUPPORTS
      72                 :   NS_DECL_NSIRUNNABLE
      73                 : 
      74                 :   nsresult Init();
      75                 : 
      76                 :   nsresult Dispatch(nsIEventTarget* aDatabaseThread);
      77                 :   nsresult RunImmediately();
      78                 : 
      79               1 :   void SetError(nsresult rv)
      80                 :   {
      81               1 :     NS_ASSERTION(NS_FAILED(rv), "Why are you telling me?");
      82               1 :     mResultCode = rv;
      83               1 :   }
      84                 : 
      85               5 :   nsresult GetResultCode()
      86                 :   {
      87               5 :     return mResultCode;
      88                 :   }
      89                 : 
      90                 :   nsresult NotifySetVersionFinished();
      91                 :   nsresult NotifyDeleteFinished();
      92                 :   void BlockDatabase();
      93                 : 
      94              76 :   nsIAtom* Id() const
      95                 :   {
      96              76 :     return mDatabaseId.get();
      97                 :   }
      98                 : 
      99               3 :   IDBDatabase* Database() const
     100                 :   {
     101               3 :     NS_ASSERTION(mDatabase, "Calling at the wrong time!");
     102               3 :     return mDatabase;
     103                 :   }
     104                 : 
     105                 :   static
     106                 :   nsresult CreateDatabaseConnection(const nsAString& aName,
     107                 :                                     nsIFile* aDBFile,
     108                 :                                     nsIFile* aFileManagerDirectory,
     109                 :                                     mozIStorageConnection** aConnection);
     110                 : 
     111                 : protected:
     112                 :   // Methods only called on the main thread
     113                 :   nsresult EnsureSuccessResult();
     114                 :   nsresult StartSetVersion();
     115                 :   nsresult StartDelete();
     116                 :   nsresult GetSuccessResult(JSContext* aCx,
     117                 :                           jsval* aVal);
     118                 :   void DispatchSuccessEvent();
     119                 :   void DispatchErrorEvent();
     120                 :   void ReleaseMainThreadObjects();
     121                 : 
     122                 :   // Methods only called on the DB thread
     123                 :   nsresult DoDatabaseWork();
     124                 : 
     125                 : private:
     126                 :   // In-params.
     127                 :   nsRefPtr<IDBOpenDBRequest> mOpenDBRequest;
     128                 :   nsString mName;
     129                 :   nsCString mASCIIOrigin;
     130                 :   PRUint64 mRequestedVersion;
     131                 :   bool mForDeletion;
     132                 :   nsCOMPtr<nsIAtom> mDatabaseId;
     133                 : 
     134                 :   // Out-params.
     135                 :   nsTArray<nsRefPtr<ObjectStoreInfo> > mObjectStores;
     136                 :   PRUint64 mCurrentVersion;
     137                 :   nsString mDatabaseFilePath;
     138                 :   PRInt64 mLastObjectStoreId;
     139                 :   PRInt64 mLastIndexId;
     140                 :   nsRefPtr<IDBDatabase> mDatabase;
     141                 : 
     142                 :   // State variables
     143                 :   enum OpenDatabaseState {
     144                 :     eCreated = 0, // Not yet dispatched to the DB thread
     145                 :     eDBWork, // Waiting to do/doing work on the DB thread
     146                 :     eFiringEvents, // Waiting to fire/firing events on the main thread
     147                 :     eSetVersionPending, // Waiting on a SetVersionHelper
     148                 :     eSetVersionCompleted, // SetVersionHelper is done
     149                 :     eDeletePending, // Waiting on a DeleteDatabaseHelper
     150                 :     eDeleteCompleted, // DeleteDatabaseHelper is done
     151                 :   };
     152                 :   OpenDatabaseState mState;
     153                 :   nsresult mResultCode;
     154                 : 
     155                 :   nsRefPtr<FileManager> mFileManager;
     156                 : 
     157                 :   nsRefPtr<DatabaseInfo> mDBInfo;
     158                 :   bool mLoadDBMetadata;
     159                 : };
     160                 : 
     161                 : END_INDEXEDDB_NAMESPACE
     162                 : 
     163                 : #endif // mozilla_dom_indexeddb_opendatabasehelper_h__

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