Bug 463471 - temp tables are not correctly synced to disk when the user clear private data on shutdown (r=sdwilsh, r=dietrich)

toolkit/components/places/public/nsPIPlacesDatabase.idl

@@ -46,11 +46,24 @@ interface mozIStorageConnection;
  * database.  If outside consumers wish to use this, they should only read from
  * the database so they do not break any internal invariants.
  */
-[scriptable, uuid(daa7d3ba-8e24-4228-93b5-2c188bad7d36)]
+[scriptable, uuid(8e6d4f8a-4b8e-4026-9fca-517c4494ddb7)]
 interface nsPIPlacesDatabase : nsISupports
 {
   /**
    * The database connection used by Places.
    */
   readonly attribute mozIStorageConnection DBConnection;
+
+  /**
+   * Finalizes all Places internal statements, allowing to safely close the
+   * database connection.
+   */
+  void finalizeInternalStatements();
+
+  /**
+   * Commits all pending history changes, call this before finalizing
+   * statements and closing the database connection to ensure safety for all
+   * history data.
+   */
+  void commitPendingChanges();
 };

toolkit/components/places/src/nsAnnotationService.cpp

@@ -2007,3 +2007,31 @@ nsAnnotationService::CallSetForItemObservers(PRInt64 aItemId, const nsACString&
   for (PRInt32 i = 0; i < mObservers.Count(); i ++)
     mObservers[i]->OnItemAnnotationSet(aItemId, aName);
 }
+
+nsresult
+nsAnnotationService::FinalizeStatements() {
+  mozIStorageStatement* stmts[] = {
+    mDBSetAnnotation,
+    mDBSetItemAnnotation,
+    mDBGetAnnotation,
+    mDBGetItemAnnotation,
+    mDBGetAnnotationNames,
+    mDBGetItemAnnotationNames,
+    mDBGetAnnotationFromURI,
+    mDBGetAnnotationFromItemId,
+    mDBGetAnnotationNameID,
+    mDBAddAnnotationName,
+    mDBAddAnnotation,
+    mDBAddItemAnnotation,
+    mDBRemoveAnnotation,
+    mDBRemoveItemAnnotation,
+    mDBGetItemsWithAnnotation
+  };
+
+  for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(stmts); i++) {
+    nsresult rv = nsNavHistory::FinalizeStatement(stmts[i]);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
+}

toolkit/components/places/src/nsAnnotationService.h

@@ -78,6 +78,11 @@ public:
     return gAnnotationService;
   }
 
+  /**
+   * Finalize all internal statements.
+   */
+  nsresult FinalizeStatements();
+
   NS_DECL_ISUPPORTS
   NS_DECL_NSIANNOTATIONSERVICE
 

toolkit/components/places/src/nsFaviconService.cpp

@@ -1011,6 +1011,24 @@ nsFaviconService::OptimizeFaviconImage(const PRUint8* aData, PRUint32 aDataLen,
   return NS_OK;
 }
 
+nsresult
+nsFaviconService::FinalizeStatements() {
+  mozIStorageStatement* stmts[] = {
+    mDBGetURL,
+    mDBGetData,
+    mDBGetIconInfo,
+    mDBInsertIcon,
+    mDBUpdateIcon,
+    mDBSetPageFavicon
+  };
+
+  for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(stmts); i++) {
+    nsresult rv = nsNavHistory::FinalizeStatement(stmts[i]);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
+}
 
 NS_IMPL_ISUPPORTS4(FaviconLoadListener,
                    nsIRequestObserver,

toolkit/components/places/src/nsFaviconService.h

@@ -90,10 +90,15 @@ public:
   static nsresult OptimizeFaviconImage(const PRUint8* aData, PRUint32 aDataLen,
                                        const nsACString& aMimeType,
                                        nsACString& aNewData, nsACString& aNewMimeType);
+
+  /**
+   * Finalize all internal statements.
+   */
+  nsresult FinalizeStatements();
+
   NS_DECL_ISUPPORTS
   NS_DECL_NSIFAVICONSERVICE
 
-
 private:
   ~nsFaviconService();
 

toolkit/components/places/src/nsNavBookmarks.cpp

@@ -432,6 +432,35 @@ nsNavBookmarks::InitStatements()
   return NS_OK;
 }
 
+nsresult
+nsNavBookmarks::FinalizeStatements() {
+  mozIStorageStatement* stmts[] = {
+    mDBGetChildren,
+    mDBFindURIBookmarks,
+    mDBFolderCount,
+    mDBGetItemIndex,
+    mDBGetChildAt,
+    mDBGetItemProperties,
+    mDBGetItemIdForGUID,
+    mDBGetRedirectDestinations,
+    mDBInsertBookmark,
+    mDBIsBookmarkedInDatabase,
+    mDBGetLastBookmarkID,
+    mDBSetItemDateAdded,
+    mDBSetItemLastModified,
+    mDBSetItemIndex,
+    mDBGetKeywordForURI,
+    mDBGetKeywordForBookmark,
+    mDBGetURIForKeyword
+  };
+
+  for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(stmts); i++) {
+    nsresult rv = nsNavHistory::FinalizeStatement(stmts[i]);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
+}
 
 // nsNavBookmarks::InitRoots
 //

toolkit/components/places/src/nsNavBookmarks.h

@@ -104,6 +104,11 @@ public:
 
   PRBool ItemExists(PRInt64 aItemId);
 
+  /**
+   * Finalize all internal statements.
+   */
+  nsresult FinalizeStatements();
+
 private:
   static nsNavBookmarks *sInstance;
 

toolkit/components/places/src/nsNavHistory.cpp

@@ -5279,6 +5279,57 @@ nsNavHistory::GetDBConnection(mozIStorageConnection **_DBConnection)
   return NS_OK;
 }
 
+NS_IMETHODIMP
+nsNavHistory::FinalizeInternalStatements()
+{
+  NS_ASSERTION(NS_IsMainThread(), "This can only be called on the main thread");
+
+#ifdef LAZY_ADD
+  // Kill lazy timer or it could fire later when statements won't be valid
+  // anymore.
+  // At this point we should have called CommitPendingChanges before the last
+  // sync, so all data is saved to disk and we can finalize all statements.
+  if (mLazyTimer)
+    mLazyTimer->Cancel();
+  NS_ABORT_IF_FALSE(mLazyMessages.Length() == 0,
+    "There are pending lazy messages, did you call CommitPendingChanges()?");
+#endif
+
+  // nsNavHistory
+  nsresult rv = FinalizeStatements();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // nsNavBookmarks
+  nsNavBookmarks* bookmarks = nsNavBookmarks::GetBookmarksService();
+  NS_ENSURE_TRUE(bookmarks, NS_ERROR_OUT_OF_MEMORY);
+  rv = bookmarks->FinalizeStatements();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // nsAnnotationService
+  nsAnnotationService* annosvc = nsAnnotationService::GetAnnotationService();
+  NS_ENSURE_TRUE(annosvc, NS_ERROR_OUT_OF_MEMORY);
+  rv = annosvc->FinalizeStatements();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // nsFaviconService
+  nsFaviconService* iconsvc = nsFaviconService::GetFaviconService();
+  NS_ENSURE_TRUE(iconsvc, NS_ERROR_OUT_OF_MEMORY);
+  rv = iconsvc->FinalizeStatements();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNavHistory::CommitPendingChanges()
+{
+  #ifdef LAZY_ADD
+    CommitLazyMessages();
+  #endif
+
+  return NS_OK;
+}
+
 // nsIObserver *****************************************************************
 
 NS_IMETHODIMP
@@ -7455,6 +7506,50 @@ nsNavHistory::GetDBOldFrecencies()
   return mDBOldFrecencies;
 }
 
+nsresult
+nsNavHistory::FinalizeStatements() {
+  mozIStorageStatement* stmts[] = {
+    mDBGetURLPageInfo,
+    mDBGetIdPageInfo,
+    mDBRecentVisitOfURL,
+    mDBRecentVisitOfPlace,
+    mDBInsertVisit,
+    mDBGetPageVisitStats,
+    mDBIsPageVisited,
+    mDBUpdatePageVisitStats,
+    mDBAddNewPage,
+    mDBGetTags,
+    mFoldersWithAnnotationQuery,
+    mDBSetPlaceTitle,
+    mDBVisitToURLResult,
+    mDBVisitToVisitResult,
+    mDBBookmarkToUrlResult,
+    mDBVisitsForFrecency,
+    mDBUpdateFrecencyAndHidden,
+    mDBGetPlaceVisitStats,
+    mDBGetBookmarkParentsForPlace,
+    mDBFullVisitCount,
+    mDBInvalidFrecencies,
+    mDBOldFrecencies,
+    mDBCurrentQuery,
+    mDBAutoCompleteQuery,
+    mDBAutoCompleteHistoryQuery,
+    mDBAutoCompleteStarQuery,
+    mDBAutoCompleteTagsQuery,
+    mDBPreviousQuery,
+    mDBAdaptiveQuery,
+    mDBKeywordQuery,
+    mDBFeedbackIncrease
+  };
+
+  for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(stmts); i++) {
+    nsresult rv = nsNavHistory::FinalizeStatement(stmts[i]);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
+}
+
 // nsICharsetResolver **********************************************************
 
 NS_IMETHODIMP

toolkit/components/places/src/nsNavHistory.h

@@ -197,17 +197,6 @@ public:
     return gHistoryService;
   }
 
-  /**
-   * Call this function before doing any database reads. It will ensure that
-   * any data not flushed to the DB yet is flushed.
-   */
-  void SyncDB()
-  {
-    #ifdef LAZY_ADD
-      CommitLazyMessages();
-    #endif
-  }
-
 #ifdef LAZY_ADD
   /**
    * Adds a lazy message for adding a favicon. Used by the favicon service so
@@ -400,6 +389,19 @@ public:
 
   typedef nsDataHashtable<nsCStringHashKey, nsCString> StringHash;
 
+  /**
+   * Helper method to finalize a statement
+   */
+  static nsresult
+  FinalizeStatement(mozIStorageStatement *aStatement) {
+    nsresult rv;
+    if (aStatement) {
+      rv = aStatement->Finalize();
+      NS_ENSURE_SUCCESS(rv, rv);
+    }
+    return NS_OK;
+  }
+
  private:
   ~nsNavHistory();
 
@@ -444,6 +446,11 @@ protected:
   mozIStorageStatement *GetDBBookmarkToUrlResult();
   nsCOMPtr<mozIStorageStatement> mDBBookmarkToUrlResult; // kGetInfoIndex_* results
 
+  /**
+   * Finalize all internal statements.
+   */
+  nsresult FinalizeStatements();
+
   // nsICharsetResolver
   NS_DECL_NSICHARSETRESOLVER
 

toolkit/components/places/src/nsNavHistoryExpire.cpp

@@ -257,18 +257,10 @@ nsNavHistoryExpire::ClearHistory()
       "SELECT h.id FROM moz_places_temp h "
       "WHERE "
         "EXISTS (SELECT id FROM moz_bookmarks WHERE fk = h.id) "
-        "OR EXISTS "
-          "(SELECT id FROM moz_annos WHERE place_id = h.id AND expiration = ") +
-          nsPrintfCString("%d", nsIAnnotationService::EXPIRE_NEVER) +
-          NS_LITERAL_CSTRING(") "
       "UNION ALL "
       "SELECT h.id FROM moz_places h "
       "WHERE "
         "EXISTS (SELECT id FROM moz_bookmarks WHERE fk = h.id) "
-        "OR EXISTS "
-          "(SELECT id FROM moz_annos WHERE place_id = h.id AND expiration = ") +
-          nsPrintfCString("%d", nsIAnnotationService::EXPIRE_NEVER) +
-          NS_LITERAL_CSTRING(") "
     ")"));
   NS_ENSURE_SUCCESS(rv, rv);
 
@@ -837,6 +829,8 @@ nsNavHistoryExpire::ExpireAnnotations(mozIStorageConnection* aConnection)
   NS_ENSURE_SUCCESS(rv, rv);
   rv = expirePagesStatement->Execute();
   NS_ENSURE_SUCCESS(rv, rv);
+  rv = expirePagesStatement->Reset();
+  NS_ENSURE_SUCCESS(rv, rv);
 
   // remove days item annos
   rv = expireItemsStatement->BindInt32Parameter(0, nsIAnnotationService::EXPIRE_DAYS);
@@ -845,6 +839,8 @@ nsNavHistoryExpire::ExpireAnnotations(mozIStorageConnection* aConnection)
   NS_ENSURE_SUCCESS(rv, rv);
   rv = expireItemsStatement->Execute();
   NS_ENSURE_SUCCESS(rv, rv);
+  rv = expireItemsStatement->Reset();
+  NS_ENSURE_SUCCESS(rv, rv);
 
   // remove weeks annos
   rv = expirePagesStatement->BindInt32Parameter(0, nsIAnnotationService::EXPIRE_WEEKS);
@@ -853,6 +849,8 @@ nsNavHistoryExpire::ExpireAnnotations(mozIStorageConnection* aConnection)
   NS_ENSURE_SUCCESS(rv, rv);
   rv = expirePagesStatement->Execute();
   NS_ENSURE_SUCCESS(rv, rv);
+  rv = expirePagesStatement->Reset();
+  NS_ENSURE_SUCCESS(rv, rv);
 
   // remove weeks item annos
   rv = expireItemsStatement->BindInt32Parameter(0, nsIAnnotationService::EXPIRE_WEEKS);
@@ -861,6 +859,8 @@ nsNavHistoryExpire::ExpireAnnotations(mozIStorageConnection* aConnection)
   NS_ENSURE_SUCCESS(rv, rv);
   rv = expireItemsStatement->Execute();
   NS_ENSURE_SUCCESS(rv, rv);
+  rv = expireItemsStatement->Reset();
+  NS_ENSURE_SUCCESS(rv, rv);
 
   // remove months annos
   rv = expirePagesStatement->BindInt32Parameter(0, nsIAnnotationService::EXPIRE_MONTHS);

toolkit/components/places/src/nsNavHistoryResult.cpp

@@ -2195,7 +2195,10 @@ nsNavHistoryQueryResultNode::GetHasChildren(PRBool* aHasChildren)
     rv = hasTagsStatement->BindInt64Parameter(0, tagsFolderId);
     NS_ENSURE_SUCCESS(rv, rv);
 
-    return hasTagsStatement->ExecuteStep(aHasChildren);
+    rv = hasTagsStatement->ExecuteStep(aHasChildren);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    return NS_OK;
   }
 
   // For history containers query we must check if we have any history

toolkit/components/places/src/nsPlacesDBFlush.js

@@ -103,7 +103,26 @@ nsPlacesDBFlush.prototype = {
       this._prefs.QueryInterface(Ci.nsIPrefBranch2).removeObserver("", this);
       this._timer.cancel();
       this._timer = null;
-      this._syncTables(["places", "historyvisits"]);
+      // Other components could still make changes to history at this point,
+      // for example to clear private data on shutdown, so here we dispatch
+      // an event to the main thread so that we will sync after
+      // quit-application ensuring all data have been saved.
+      let tm = Cc["@mozilla.org/thread-manager;1"].
+          getService(Ci.nsIThreadManager);
+      tm.mainThread.dispatch({
+        _self: this,
+        run: function() {
+          let pip = Cc["@mozilla.org/browser/nav-history-service;1"].
+                    getService(Ci.nsPIPlacesDatabase);
+          pip.commitPendingChanges();
+          this._self._syncTables(["places", "historyvisits"]);
+          // Close the database connection, this was the last sync and we can't
+          // ensure database coherence from now on.
+          pip.finalizeInternalStatements();
+          this._self._db.close();
+        }
+      }, Ci.nsIThread.DISPATCH_NORMAL);
+
     }
     else if (aTopic == "nsPref:changed" && aData == kSyncPrefName) {
       // Get the new pref value, and then update our timer

toolkit/components/places/tests/sync/head_sync.js

@@ -111,9 +111,7 @@ clearDB();
  */
 function dump_table(aName)
 {
-  let db = Cc["@mozilla.org/browser/nav-history-service;1"].
+  let db = DBConn()
-           getService(Ci.nsPIPlacesDatabase).
-           DBConnection;
   let stmt = db.createStatement("SELECT * FROM " + aName);
 
   dump("\n*** Printing data from " + aName + ":\n");
@@ -185,9 +183,7 @@ function finish_test()
  */
 function new_test_bookmark_uri_event(aBookmarkId, aExpectedURI, aExpected, aFinish)
 {
-  let db = Cc["@mozilla.org/browser/nav-history-service;1"].
+  let db = DBConn();
-           getService(Ci.nsPIPlacesDatabase).
-           DBConnection;
   let stmt = db.createStatement(
     "SELECT moz_places.url " +
     "FROM moz_bookmarks INNER JOIN moz_places " +
@@ -227,9 +223,7 @@ function new_test_bookmark_uri_event(aBookmarkId, aExpectedURI, aExpected, aFini
  */
 function new_test_visit_uri_event(aVisitId, aExpectedURI, aExpected, aFinish)
 {
-  let db = Cc["@mozilla.org/browser/nav-history-service;1"].
+  let db = DBConn();
-           getService(Ci.nsPIPlacesDatabase).
-           DBConnection;
   let stmt = db.createStatement(
     "SELECT moz_places.url " +
     "FROM moz_historyvisits INNER JOIN moz_places " +
@@ -253,6 +247,31 @@ function new_test_visit_uri_event(aVisitId, aExpectedURI, aExpected, aFinish)
     finish_test();
 }
 
+/**
+ * Function gets current database connection, if the connection has been closed
+ * it will try to reconnect to the places.sqlite database.
+ */
+function DBConn()
+{
+  let db = Cc["@mozilla.org/browser/nav-history-service;1"].
+           getService(Ci.nsPIPlacesDatabase).
+           DBConnection;
+  if (db.connectionReady)
+    return db;
+
+  // open a new connection if needed
+  let file = dirSvc.get('ProfD', Ci.nsIFile);
+  file.append("places.sqlite");
+  let storageService = Cc["@mozilla.org/storage/service;1"].
+                       getService(Ci.mozIStorageService);
+  try {
+    var dbConn = storageService.openDatabase(file);
+  } catch (ex) {
+    return null;
+  }
+  return dbConn;
+}
+
 // profile-after-change doesn't create components in xpcshell, so we have to do
 // it ourselves
 Cc["@mozilla.org/places/sync;1"].getService(Ci.nsISupports);

toolkit/components/places/tests/unit/test_nsPIPlacesDatabase_commitPendingChanges.js

@@ -0,0 +1,75 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Places Unit Test Code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corp.
+ * Portions created by the Initial Developer are Copyright (C) 2008
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Marco Bonardo <mak77bonardo.net> (Original Author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+var hs = Cc["@mozilla.org/browser/nav-history-service;1"].
+         getService(Ci.nsINavHistoryService);
+var pip = hs.QueryInterface(Ci.nsPIPlacesDatabase);
+var mDBConn = pip.DBConnection;
+var gh = hs.QueryInterface(Ci.nsIGlobalHistory2);
+var iconsvc = Cc["@mozilla.org/browser/favicon-service;1"].
+              getService(Ci.nsIFaviconService);
+
+const TEST_URI = "http://www.mozilla.org/";
+const TEST_TITLE = "testTitle";
+
+// main
+function run_test() {
+  var testURI = uri(TEST_URI);
+  var faviconURI = uri(TEST_URI + "favicon.ico");
+
+  // Add a uri lazy message
+  gh.addURI(testURI, false, true, null);
+  // Add a favicon lazy message
+  iconsvc.setFaviconUrlForPage(testURI, faviconURI);
+  // Add a title lazy message
+  hs.setPageTitle(testURI, TEST_TITLE);
+
+  // Commit all pending changes (lazy messages)
+  pip.commitPendingChanges();
+
+  // Check database values, we can't use APIs because them would check
+  // lazy queue.
+  let stmt = mDBConn.createStatement(
+    "SELECT id FROM moz_places_temp WHERE url = :url AND title = :title " +
+      "AND favicon_id = (SELECT id FROM moz_favicons WHERE url = :favicon_url)");
+  stmt.params["url"] = testURI.spec;
+  stmt.params["title"] = TEST_TITLE;
+  stmt.params["favicon_url"] = faviconURI.spec;
+  do_check_true(stmt.executeStep());
+  stmt.finalize();
+}

toolkit/components/places/tests/unit/test_nsPIPlacesDatabase_finalizeInternalStatements.js

@@ -0,0 +1,49 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Places Unit Test Code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corp.
+ * Portions created by the Initial Developer are Copyright (C) 2008
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Marco Bonardo <mak77bonardo.net> (Original Author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// main
+function run_test() {
+  var hs = Cc["@mozilla.org/browser/nav-history-service;1"].
+           getService(Ci.nsINavHistoryService);
+
+  var mDBConn = hs.QueryInterface(Ci.nsPIPlacesDatabase).DBConnection;
+
+  hs.QueryInterface(Ci.nsPIPlacesDatabase).finalizeInternalStatements();
+  mDBConn.close();
+  do_check_false(mDBConn.connectionReady);
+}