зеркало из https://github.com/mozilla/pjs.git
1032 строки
28 KiB
C++
1032 строки
28 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Indexed Database.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Ben Turner <bent.mozilla@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "IDBTransaction.h"
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#include "nsIAppShell.h"
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#include "nsIScriptContext.h"
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#include "mozilla/storage.h"
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#include "nsContentUtils.h"
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#include "nsDOMClassInfoID.h"
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#include "nsDOMLists.h"
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#include "nsEventDispatcher.h"
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#include "nsPIDOMWindow.h"
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#include "nsProxyRelease.h"
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#include "nsThreadUtils.h"
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#include "nsWidgetsCID.h"
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#include "AsyncConnectionHelper.h"
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#include "DatabaseInfo.h"
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#include "IDBCursor.h"
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#include "IDBEvents.h"
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#include "IDBFactory.h"
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#include "IDBObjectStore.h"
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#include "IndexedDatabaseManager.h"
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#include "TransactionThreadPool.h"
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#define SAVEPOINT_NAME "savepoint"
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USING_INDEXEDDB_NAMESPACE
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namespace {
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NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
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PLDHashOperator
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DoomCachedStatements(const nsACString& aQuery,
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nsCOMPtr<mozIStorageStatement>& aStatement,
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void* aUserArg)
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{
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CommitHelper* helper = static_cast<CommitHelper*>(aUserArg);
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helper->AddDoomedObject(aStatement);
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return PL_DHASH_REMOVE;
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}
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// This runnable doesn't actually do anything beyond "prime the pump" and get
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// transactions in the right order on the transaction thread pool.
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class StartTransactionRunnable : public nsIRunnable
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{
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD Run()
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{
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// NOP
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return NS_OK;
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}
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};
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// Could really use those NS_REFCOUNTING_HAHA_YEAH_RIGHT macros here.
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NS_IMETHODIMP_(nsrefcnt) StartTransactionRunnable::AddRef()
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{
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return 2;
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}
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NS_IMETHODIMP_(nsrefcnt) StartTransactionRunnable::Release()
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{
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return 1;
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}
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NS_IMPL_QUERY_INTERFACE1(StartTransactionRunnable, nsIRunnable)
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StartTransactionRunnable gStartTransactionRunnable;
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} // anonymous namespace
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// static
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already_AddRefed<IDBTransaction>
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IDBTransaction::Create(IDBDatabase* aDatabase,
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nsTArray<nsString>& aObjectStoreNames,
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Mode aMode,
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bool aDispatchDelayed)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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nsRefPtr<IDBTransaction> transaction = new IDBTransaction();
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transaction->BindToOwner(aDatabase);
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if (!transaction->SetScriptOwner(aDatabase->GetScriptOwner())) {
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return nsnull;
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}
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transaction->mDatabase = aDatabase;
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transaction->mMode = aMode;
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transaction->mDatabaseInfo = aDatabase->Info();
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if (!transaction->mObjectStoreNames.AppendElements(aObjectStoreNames)) {
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NS_ERROR("Out of memory!");
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return nsnull;
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}
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if (!transaction->mCachedStatements.Init()) {
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NS_ERROR("Failed to initialize hash!");
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return nsnull;
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}
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if (!aDispatchDelayed) {
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nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID);
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NS_ENSURE_TRUE(appShell, nsnull);
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nsresult rv = appShell->RunBeforeNextEvent(transaction);
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NS_ENSURE_SUCCESS(rv, nsnull);
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transaction->mCreating = true;
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}
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if (aMode != IDBTransaction::VERSION_CHANGE) {
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TransactionThreadPool* pool = TransactionThreadPool::GetOrCreate();
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pool->Dispatch(transaction, &gStartTransactionRunnable, false, nsnull);
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}
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return transaction.forget();
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}
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IDBTransaction::IDBTransaction()
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: mReadyState(IDBTransaction::INITIAL),
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mMode(IDBTransaction::READ_ONLY),
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mPendingRequests(0),
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mSavepointCount(0),
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mAborted(false),
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mCreating(false)
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#ifdef DEBUG
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, mFiredCompleteOrAbort(false)
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#endif
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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}
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IDBTransaction::~IDBTransaction()
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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NS_ASSERTION(!mPendingRequests, "Should have no pending requests here!");
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NS_ASSERTION(!mSavepointCount, "Should have released them all!");
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NS_ASSERTION(!mConnection, "Should have called CommitOrRollback!");
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NS_ASSERTION(!mCreating, "Should have been cleared already!");
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NS_ASSERTION(mFiredCompleteOrAbort, "Should have fired event!");
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nsContentUtils::ReleaseWrapper(static_cast<nsIDOMEventTarget*>(this), this);
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}
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void
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IDBTransaction::OnNewRequest()
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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if (!mPendingRequests) {
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NS_ASSERTION(mReadyState == IDBTransaction::INITIAL,
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"Reusing a transaction!");
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mReadyState = IDBTransaction::LOADING;
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}
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++mPendingRequests;
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}
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void
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IDBTransaction::OnRequestFinished()
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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NS_ASSERTION(mPendingRequests, "Mismatched calls!");
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--mPendingRequests;
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if (!mPendingRequests) {
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NS_ASSERTION(mAborted || mReadyState == IDBTransaction::LOADING,
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"Bad state!");
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mReadyState = IDBTransaction::COMMITTING;
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CommitOrRollback();
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}
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}
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void
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IDBTransaction::RemoveObjectStore(const nsAString& aName)
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{
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NS_ASSERTION(mMode == IDBTransaction::VERSION_CHANGE,
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"Only remove object stores on VERSION_CHANGE transactions");
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mDatabaseInfo->RemoveObjectStore(aName);
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for (PRUint32 i = 0; i < mCreatedObjectStores.Length(); i++) {
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if (mCreatedObjectStores[i]->Name() == aName) {
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mCreatedObjectStores.RemoveElementAt(i);
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break;
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}
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}
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}
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void
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IDBTransaction::SetTransactionListener(IDBTransactionListener* aListener)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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NS_ASSERTION(!mListener, "Shouldn't already have a listener!");
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mListener = aListener;
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}
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nsresult
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IDBTransaction::CommitOrRollback()
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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TransactionThreadPool* pool = TransactionThreadPool::GetOrCreate();
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NS_ENSURE_STATE(pool);
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nsRefPtr<CommitHelper> helper(new CommitHelper(this, mListener,
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mCreatedObjectStores));
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mCachedStatements.Enumerate(DoomCachedStatements, helper);
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NS_ASSERTION(!mCachedStatements.Count(), "Statements left!");
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nsresult rv = pool->Dispatch(this, helper, true, helper);
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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bool
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IDBTransaction::StartSavepoint()
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{
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NS_PRECONDITION(!NS_IsMainThread(), "Wrong thread!");
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NS_PRECONDITION(mConnection, "No connection!");
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nsCOMPtr<mozIStorageStatement> stmt = GetCachedStatement(NS_LITERAL_CSTRING(
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"SAVEPOINT " SAVEPOINT_NAME
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));
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NS_ENSURE_TRUE(stmt, false);
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mozStorageStatementScoper scoper(stmt);
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nsresult rv = stmt->Execute();
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NS_ENSURE_SUCCESS(rv, false);
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++mSavepointCount;
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return true;
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}
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nsresult
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IDBTransaction::ReleaseSavepoint()
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{
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NS_PRECONDITION(!NS_IsMainThread(), "Wrong thread!");
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NS_PRECONDITION(mConnection, "No connection!");
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NS_ASSERTION(mSavepointCount, "Mismatch!");
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nsCOMPtr<mozIStorageStatement> stmt = GetCachedStatement(NS_LITERAL_CSTRING(
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"RELEASE SAVEPOINT " SAVEPOINT_NAME
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));
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NS_ENSURE_TRUE(stmt, false);
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mozStorageStatementScoper scoper(stmt);
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nsresult rv = stmt->Execute();
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NS_ENSURE_SUCCESS(rv, false);
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--mSavepointCount;
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return NS_OK;
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}
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void
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IDBTransaction::RollbackSavepoint()
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{
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NS_PRECONDITION(!NS_IsMainThread(), "Wrong thread!");
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NS_PRECONDITION(mConnection, "No connection!");
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NS_ASSERTION(mSavepointCount == 1, "Mismatch!");
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mSavepointCount = 0;
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nsCOMPtr<mozIStorageStatement> stmt = GetCachedStatement(NS_LITERAL_CSTRING(
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"ROLLBACK TO SAVEPOINT " SAVEPOINT_NAME
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));
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NS_ENSURE_TRUE(stmt,);
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mozStorageStatementScoper scoper(stmt);
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nsresult rv = stmt->Execute();
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NS_ENSURE_SUCCESS(rv,);
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}
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nsresult
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IDBTransaction::GetOrCreateConnection(mozIStorageConnection** aResult)
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{
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NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
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if (mDatabase->IsInvalidated()) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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if (!mConnection) {
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nsCOMPtr<mozIStorageConnection> connection =
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IDBFactory::GetConnection(mDatabase->FilePath());
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NS_ENSURE_TRUE(connection, NS_ERROR_FAILURE);
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nsresult rv;
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nsRefPtr<UpdateRefcountFunction> function;
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nsCString beginTransaction;
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if (mMode != IDBTransaction::READ_ONLY) {
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function = new UpdateRefcountFunction(Database()->Manager());
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NS_ENSURE_TRUE(function, NS_ERROR_OUT_OF_MEMORY);
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rv = function->Init();
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NS_ENSURE_SUCCESS(rv, rv);
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rv = connection->CreateFunction(
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NS_LITERAL_CSTRING("update_refcount"), 2, function);
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NS_ENSURE_SUCCESS(rv, rv);
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beginTransaction.AssignLiteral("BEGIN IMMEDIATE TRANSACTION;");
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}
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else {
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beginTransaction.AssignLiteral("BEGIN TRANSACTION;");
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}
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nsCOMPtr<mozIStorageStatement> stmt;
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rv = connection->CreateStatement(beginTransaction, getter_AddRefs(stmt));
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NS_ENSURE_SUCCESS(rv, rv);
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rv = stmt->Execute();
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NS_ENSURE_SUCCESS(rv, rv);
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function.swap(mUpdateFileRefcountFunction);
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connection.swap(mConnection);
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}
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nsCOMPtr<mozIStorageConnection> result(mConnection);
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result.forget(aResult);
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return NS_OK;
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}
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already_AddRefed<mozIStorageStatement>
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IDBTransaction::GetCachedStatement(const nsACString& aQuery)
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{
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NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
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NS_ASSERTION(!aQuery.IsEmpty(), "Empty sql statement!");
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NS_ASSERTION(mConnection, "No connection!");
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nsCOMPtr<mozIStorageStatement> stmt;
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if (!mCachedStatements.Get(aQuery, getter_AddRefs(stmt))) {
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nsresult rv = mConnection->CreateStatement(aQuery, getter_AddRefs(stmt));
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#ifdef DEBUG
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if (NS_FAILED(rv)) {
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nsCString error;
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error.AppendLiteral("The statement `");
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error.Append(aQuery);
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error.AppendLiteral("` failed to compile with the error message `");
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nsCString msg;
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(void)mConnection->GetLastErrorString(msg);
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error.Append(msg);
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error.AppendLiteral("`.");
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NS_ERROR(error.get());
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}
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#endif
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NS_ENSURE_SUCCESS(rv, nsnull);
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if (!mCachedStatements.Put(aQuery, stmt)) {
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NS_ERROR("Out of memory?!");
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}
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}
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return stmt.forget();
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}
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bool
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IDBTransaction::IsOpen() const
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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// If we haven't started anything then we're open.
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if (mReadyState == IDBTransaction::INITIAL) {
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NS_ASSERTION(AsyncConnectionHelper::GetCurrentTransaction() != this,
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"This should be some other transaction (or null)!");
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return true;
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}
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// If we've already started then we need to check to see if we still have the
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// mCreating flag set. If we do (i.e. we haven't returned to the event loop
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// from the time we were created) then we are open. Otherwise check the
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// currently running transaction to see if it's the same. We only allow other
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// requests to be made if this transaction is currently running.
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if (mReadyState == IDBTransaction::LOADING) {
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if (mCreating) {
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return true;
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}
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if (AsyncConnectionHelper::GetCurrentTransaction() == this) {
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return true;
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}
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}
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return false;
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}
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already_AddRefed<IDBObjectStore>
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IDBTransaction::GetOrCreateObjectStore(const nsAString& aName,
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ObjectStoreInfo* aObjectStoreInfo)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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NS_ASSERTION(aObjectStoreInfo, "Null pointer!");
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nsRefPtr<IDBObjectStore> retval;
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for (PRUint32 index = 0; index < mCreatedObjectStores.Length(); index++) {
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nsRefPtr<IDBObjectStore>& objectStore = mCreatedObjectStores[index];
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if (objectStore->Name() == aName) {
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retval = objectStore;
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return retval.forget();
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}
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}
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retval = IDBObjectStore::Create(this, aObjectStoreInfo, mDatabaseInfo->id);
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mCreatedObjectStores.AppendElement(retval);
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return retval.forget();
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}
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void
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IDBTransaction::OnNewFileInfo(FileInfo* aFileInfo)
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{
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mCreatedFileInfos.AppendElement(aFileInfo);
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}
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void
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IDBTransaction::ClearCreatedFileInfos()
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{
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mCreatedFileInfos.Clear();
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(IDBTransaction)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBTransaction,
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IDBWrapperCache)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mDatabase,
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nsIDOMEventTarget)
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NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(error)
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NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(complete)
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NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(abort)
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for (PRUint32 i = 0; i < tmp->mCreatedObjectStores.Length(); i++) {
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCreatedObjectStores[i]");
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cb.NoteXPCOMChild(static_cast<nsIIDBObjectStore*>(
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tmp->mCreatedObjectStores[i].get()));
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBTransaction, IDBWrapperCache)
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// Don't unlink mDatabase!
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NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(error)
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NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(complete)
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NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(abort)
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tmp->mCreatedObjectStores.Clear();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBTransaction)
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NS_INTERFACE_MAP_ENTRY(nsIIDBTransaction)
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NS_INTERFACE_MAP_ENTRY(nsIRunnable)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBTransaction)
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NS_INTERFACE_MAP_END_INHERITING(IDBWrapperCache)
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NS_IMPL_ADDREF_INHERITED(IDBTransaction, IDBWrapperCache)
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NS_IMPL_RELEASE_INHERITED(IDBTransaction, IDBWrapperCache)
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DOMCI_DATA(IDBTransaction, IDBTransaction)
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NS_IMPL_EVENT_HANDLER(IDBTransaction, error);
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NS_IMPL_EVENT_HANDLER(IDBTransaction, complete);
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NS_IMPL_EVENT_HANDLER(IDBTransaction, abort);
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NS_IMETHODIMP
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IDBTransaction::GetDb(nsIIDBDatabase** aDB)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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NS_ADDREF(*aDB = mDatabase);
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return NS_OK;
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}
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NS_IMETHODIMP
|
|
IDBTransaction::GetMode(nsAString& aMode)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
switch (mMode) {
|
|
case READ_ONLY:
|
|
aMode.AssignLiteral("readonly");
|
|
break;
|
|
case READ_WRITE:
|
|
aMode.AssignLiteral("readwrite");
|
|
break;
|
|
case VERSION_CHANGE:
|
|
aMode.AssignLiteral("versionchange");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
IDBTransaction::GetObjectStoreNames(nsIDOMDOMStringList** aObjectStores)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
nsRefPtr<nsDOMStringList> list(new nsDOMStringList());
|
|
|
|
nsAutoTArray<nsString, 10> stackArray;
|
|
nsTArray<nsString>* arrayOfNames;
|
|
|
|
if (mMode == IDBTransaction::VERSION_CHANGE) {
|
|
mDatabaseInfo->GetObjectStoreNames(stackArray);
|
|
|
|
arrayOfNames = &stackArray;
|
|
}
|
|
else {
|
|
arrayOfNames = &mObjectStoreNames;
|
|
}
|
|
|
|
PRUint32 count = arrayOfNames->Length();
|
|
for (PRUint32 index = 0; index < count; index++) {
|
|
NS_ENSURE_TRUE(list->Add(arrayOfNames->ElementAt(index)),
|
|
NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
|
|
}
|
|
|
|
list.forget(aObjectStores);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
IDBTransaction::ObjectStore(const nsAString& aName,
|
|
nsIIDBObjectStore** _retval)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
if (!IsOpen()) {
|
|
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
|
|
}
|
|
|
|
ObjectStoreInfo* info = nsnull;
|
|
|
|
if (mMode == IDBTransaction::VERSION_CHANGE ||
|
|
mObjectStoreNames.Contains(aName)) {
|
|
info = mDatabaseInfo->GetObjectStore(aName);
|
|
}
|
|
|
|
if (!info) {
|
|
return NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR;
|
|
}
|
|
|
|
nsRefPtr<IDBObjectStore> objectStore = GetOrCreateObjectStore(aName, info);
|
|
NS_ENSURE_TRUE(objectStore, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
|
|
|
|
objectStore.forget(_retval);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
IDBTransaction::Abort()
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
// We can't use IsOpen here since we need it to be possible to call Abort()
|
|
// even from outside of transaction callbacks.
|
|
if (mReadyState != IDBTransaction::INITIAL &&
|
|
mReadyState != IDBTransaction::LOADING) {
|
|
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
|
|
}
|
|
|
|
bool needToCommitOrRollback = mReadyState == IDBTransaction::INITIAL;
|
|
|
|
mAborted = true;
|
|
mReadyState = IDBTransaction::DONE;
|
|
|
|
if (Mode() == IDBTransaction::VERSION_CHANGE) {
|
|
// If a version change transaction is aborted, the db must be closed
|
|
mDatabase->Close();
|
|
}
|
|
|
|
// Fire the abort event if there are no outstanding requests. Otherwise the
|
|
// abort event will be fired when all outstanding requests finish.
|
|
if (needToCommitOrRollback) {
|
|
return CommitOrRollback();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
IDBTransaction::PreHandleEvent(nsEventChainPreVisitor& aVisitor)
|
|
{
|
|
aVisitor.mCanHandle = true;
|
|
aVisitor.mParentTarget = mDatabase;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
IDBTransaction::Run()
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
// We're back at the event loop, no longer newborn.
|
|
mCreating = false;
|
|
|
|
// Maybe set the readyState to DONE if there were no requests generated.
|
|
if (mReadyState == IDBTransaction::INITIAL) {
|
|
mReadyState = IDBTransaction::DONE;
|
|
|
|
if (NS_FAILED(CommitOrRollback())) {
|
|
NS_WARNING("Failed to commit!");
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
CommitHelper::CommitHelper(
|
|
IDBTransaction* aTransaction,
|
|
IDBTransactionListener* aListener,
|
|
const nsTArray<nsRefPtr<IDBObjectStore> >& aUpdatedObjectStores)
|
|
: mTransaction(aTransaction),
|
|
mListener(aListener),
|
|
mAborted(!!aTransaction->mAborted)
|
|
{
|
|
mConnection.swap(aTransaction->mConnection);
|
|
mUpdateFileRefcountFunction.swap(aTransaction->mUpdateFileRefcountFunction);
|
|
|
|
for (PRUint32 i = 0; i < aUpdatedObjectStores.Length(); i++) {
|
|
ObjectStoreInfo* info = aUpdatedObjectStores[i]->Info();
|
|
if (info->comittedAutoIncrementId != info->nextAutoIncrementId) {
|
|
mAutoIncrementObjectStores.AppendElement(aUpdatedObjectStores[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
CommitHelper::~CommitHelper()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS1(CommitHelper, nsIRunnable)
|
|
|
|
NS_IMETHODIMP
|
|
CommitHelper::Run()
|
|
{
|
|
if (NS_IsMainThread()) {
|
|
NS_ASSERTION(mDoomedObjects.IsEmpty(), "Didn't release doomed objects!");
|
|
|
|
mTransaction->mReadyState = IDBTransaction::DONE;
|
|
|
|
// Release file infos on the main thread, so they will eventually get
|
|
// destroyed on correct thread.
|
|
mTransaction->ClearCreatedFileInfos();
|
|
if (mUpdateFileRefcountFunction) {
|
|
mUpdateFileRefcountFunction->ClearFileInfoEntries();
|
|
mUpdateFileRefcountFunction = nsnull;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMEvent> event;
|
|
if (mAborted) {
|
|
if (mTransaction->GetMode() == IDBTransaction::VERSION_CHANGE) {
|
|
// This will make the database take a snapshot of it's DatabaseInfo
|
|
mTransaction->Database()->Close();
|
|
// Then remove the info from the hash as it contains invalid data.
|
|
DatabaseInfo::Remove(mTransaction->Database()->Id());
|
|
}
|
|
|
|
event = CreateGenericEvent(NS_LITERAL_STRING(ABORT_EVT_STR),
|
|
eDoesBubble, eNotCancelable);
|
|
}
|
|
else {
|
|
event = CreateGenericEvent(NS_LITERAL_STRING(COMPLETE_EVT_STR),
|
|
eDoesNotBubble, eNotCancelable);
|
|
}
|
|
NS_ENSURE_TRUE(event, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
|
|
|
|
bool dummy;
|
|
if (NS_FAILED(mTransaction->DispatchEvent(event, &dummy))) {
|
|
NS_WARNING("Dispatch failed!");
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
mTransaction->mFiredCompleteOrAbort = true;
|
|
#endif
|
|
|
|
// Tell the listener (if we have one) that we're done
|
|
if (mListener) {
|
|
mListener->NotifyTransactionComplete(mTransaction);
|
|
}
|
|
|
|
mTransaction = nsnull;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
IDBDatabase* database = mTransaction->Database();
|
|
if (database->IsInvalidated()) {
|
|
mAborted = true;
|
|
}
|
|
|
|
if (mConnection) {
|
|
IndexedDatabaseManager::SetCurrentWindow(database->GetOwner());
|
|
|
|
if (!mAborted && mUpdateFileRefcountFunction &&
|
|
NS_FAILED(mUpdateFileRefcountFunction->UpdateDatabase(mConnection))) {
|
|
mAborted = true;
|
|
}
|
|
|
|
if (!mAborted && NS_FAILED(WriteAutoIncrementCounts())) {
|
|
mAborted = true;
|
|
}
|
|
|
|
if (!mAborted) {
|
|
NS_NAMED_LITERAL_CSTRING(release, "COMMIT TRANSACTION");
|
|
if (NS_SUCCEEDED(mConnection->ExecuteSimpleSQL(release))) {
|
|
if (mUpdateFileRefcountFunction) {
|
|
mUpdateFileRefcountFunction->UpdateFileInfos();
|
|
}
|
|
CommitAutoIncrementCounts();
|
|
}
|
|
else {
|
|
mAborted = true;
|
|
}
|
|
}
|
|
|
|
if (mAborted) {
|
|
RevertAutoIncrementCounts();
|
|
NS_NAMED_LITERAL_CSTRING(rollback, "ROLLBACK TRANSACTION");
|
|
if (NS_FAILED(mConnection->ExecuteSimpleSQL(rollback))) {
|
|
NS_WARNING("Failed to rollback transaction!");
|
|
}
|
|
}
|
|
}
|
|
|
|
mDoomedObjects.Clear();
|
|
|
|
if (mConnection) {
|
|
if (mUpdateFileRefcountFunction) {
|
|
nsresult rv = mConnection->RemoveFunction(
|
|
NS_LITERAL_CSTRING("update_refcount"));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to remove function!");
|
|
}
|
|
}
|
|
|
|
mConnection->Close();
|
|
mConnection = nsnull;
|
|
|
|
IndexedDatabaseManager::SetCurrentWindow(nsnull);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
CommitHelper::WriteAutoIncrementCounts()
|
|
{
|
|
nsCOMPtr<mozIStorageStatement> stmt;
|
|
nsresult rv;
|
|
for (PRUint32 i = 0; i < mAutoIncrementObjectStores.Length(); i++) {
|
|
ObjectStoreInfo* info = mAutoIncrementObjectStores[i]->Info();
|
|
if (!stmt) {
|
|
rv = mConnection->CreateStatement(NS_LITERAL_CSTRING(
|
|
"UPDATE object_store SET auto_increment = :ai "
|
|
"WHERE id = :osid;"), getter_AddRefs(stmt));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
else {
|
|
stmt->Reset();
|
|
}
|
|
|
|
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), info->id);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("ai"),
|
|
info->nextAutoIncrementId);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = stmt->Execute();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
CommitHelper::CommitAutoIncrementCounts()
|
|
{
|
|
for (PRUint32 i = 0; i < mAutoIncrementObjectStores.Length(); i++) {
|
|
ObjectStoreInfo* info = mAutoIncrementObjectStores[i]->Info();
|
|
info->comittedAutoIncrementId = info->nextAutoIncrementId;
|
|
}
|
|
}
|
|
|
|
void
|
|
CommitHelper::RevertAutoIncrementCounts()
|
|
{
|
|
for (PRUint32 i = 0; i < mAutoIncrementObjectStores.Length(); i++) {
|
|
ObjectStoreInfo* info = mAutoIncrementObjectStores[i]->Info();
|
|
info->nextAutoIncrementId = info->comittedAutoIncrementId;
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
UpdateRefcountFunction::Init()
|
|
{
|
|
NS_ENSURE_TRUE(mFileInfoEntries.Init(), NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS1(UpdateRefcountFunction, mozIStorageFunction)
|
|
|
|
NS_IMETHODIMP
|
|
UpdateRefcountFunction::OnFunctionCall(mozIStorageValueArray* aValues,
|
|
nsIVariant** _retval)
|
|
{
|
|
*_retval = nsnull;
|
|
|
|
PRUint32 numEntries;
|
|
nsresult rv = aValues->GetNumEntries(&numEntries);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ASSERTION(numEntries == 2, "unexpected number of arguments");
|
|
|
|
#ifdef DEBUG
|
|
PRInt32 type1 = mozIStorageValueArray::VALUE_TYPE_NULL;
|
|
aValues->GetTypeOfIndex(0, &type1);
|
|
|
|
PRInt32 type2 = mozIStorageValueArray::VALUE_TYPE_NULL;
|
|
aValues->GetTypeOfIndex(1, &type2);
|
|
|
|
NS_ASSERTION(!(type1 == mozIStorageValueArray::VALUE_TYPE_NULL &&
|
|
type2 == mozIStorageValueArray::VALUE_TYPE_NULL),
|
|
"Shouldn't be called!");
|
|
#endif
|
|
|
|
rv = ProcessValue(aValues, 0, eDecrement);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = ProcessValue(aValues, 1, eIncrement);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
UpdateRefcountFunction::ProcessValue(mozIStorageValueArray* aValues,
|
|
PRInt32 aIndex,
|
|
UpdateType aUpdateType)
|
|
{
|
|
PRInt32 type;
|
|
aValues->GetTypeOfIndex(aIndex, &type);
|
|
if (type == mozIStorageValueArray::VALUE_TYPE_NULL) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsString ids;
|
|
aValues->GetString(aIndex, ids);
|
|
|
|
nsTArray<PRInt64> fileIds;
|
|
nsresult rv = IDBObjectStore::ConvertFileIdsToArray(ids, fileIds);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
for (PRUint32 i = 0; i < fileIds.Length(); i++) {
|
|
PRInt64 id = fileIds.ElementAt(i);
|
|
|
|
FileInfoEntry* entry;
|
|
if (!mFileInfoEntries.Get(id, &entry)) {
|
|
nsRefPtr<FileInfo> fileInfo = mFileManager->GetFileInfo(id);
|
|
NS_ASSERTION(fileInfo, "Shouldn't be null!");
|
|
|
|
nsAutoPtr<FileInfoEntry> newEntry(new FileInfoEntry(fileInfo));
|
|
if (!mFileInfoEntries.Put(id, newEntry)) {
|
|
NS_WARNING("Out of memory?");
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
entry = newEntry.forget();
|
|
}
|
|
|
|
switch (aUpdateType) {
|
|
case eIncrement:
|
|
entry->mDelta++;
|
|
break;
|
|
case eDecrement:
|
|
entry->mDelta--;
|
|
break;
|
|
default:
|
|
NS_NOTREACHED("Unknown update type!");
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PLDHashOperator
|
|
UpdateRefcountFunction::DatabaseUpdateCallback(const PRUint64& aKey,
|
|
FileInfoEntry* aValue,
|
|
void* aUserArg)
|
|
{
|
|
if (!aValue->mDelta) {
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
DatabaseUpdateFunction* function =
|
|
static_cast<DatabaseUpdateFunction*>(aUserArg);
|
|
|
|
if (!function->Update(aKey, aValue->mDelta)) {
|
|
return PL_DHASH_STOP;
|
|
}
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
PLDHashOperator
|
|
UpdateRefcountFunction::FileInfoUpdateCallback(const PRUint64& aKey,
|
|
FileInfoEntry* aValue,
|
|
void* aUserArg)
|
|
{
|
|
if (aValue->mDelta) {
|
|
aValue->mFileInfo->UpdateDBRefs(aValue->mDelta);
|
|
}
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
bool
|
|
UpdateRefcountFunction::DatabaseUpdateFunction::Update(PRInt64 aId,
|
|
PRInt32 aDelta)
|
|
{
|
|
nsresult rv = UpdateInternal(aId, aDelta);
|
|
if (NS_FAILED(rv)) {
|
|
mErrorCode = rv;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
nsresult
|
|
UpdateRefcountFunction::DatabaseUpdateFunction::UpdateInternal(PRInt64 aId,
|
|
PRInt32 aDelta)
|
|
{
|
|
nsresult rv;
|
|
|
|
if (!mUpdateStatement) {
|
|
rv = mConnection->CreateStatement(NS_LITERAL_CSTRING(
|
|
"UPDATE file SET refcount = refcount + :delta WHERE id = :id"
|
|
), getter_AddRefs(mUpdateStatement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
mozStorageStatementScoper updateScoper(mUpdateStatement);
|
|
|
|
rv = mUpdateStatement->BindInt32ByName(NS_LITERAL_CSTRING("delta"), aDelta);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mUpdateStatement->BindInt64ByName(NS_LITERAL_CSTRING("id"), aId);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mUpdateStatement->Execute();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
PRInt32 rows;
|
|
rv = mConnection->GetAffectedRows(&rows);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (rows > 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mInsertStatement) {
|
|
rv = mConnection->CreateStatement(NS_LITERAL_CSTRING(
|
|
"INSERT INTO file (id, refcount) VALUES(:id, :delta)"
|
|
), getter_AddRefs(mInsertStatement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
mozStorageStatementScoper insertScoper(mInsertStatement);
|
|
|
|
rv = mInsertStatement->BindInt64ByName(NS_LITERAL_CSTRING("id"), aId);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mInsertStatement->BindInt32ByName(NS_LITERAL_CSTRING("delta"), aDelta);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mInsertStatement->Execute();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|