mirror of
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135 lines
3.8 KiB
C++
135 lines
3.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_indexeddb_opendatabasehelper_h__
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#define mozilla_dom_indexeddb_opendatabasehelper_h__
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#include "AsyncConnectionHelper.h"
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#include "DatabaseInfo.h"
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#include "IDBDatabase.h"
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#include "IDBRequest.h"
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#include "nsIRunnable.h"
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class mozIStorageConnection;
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BEGIN_INDEXEDDB_NAMESPACE
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class OpenDatabaseHelper : public HelperBase
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{
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public:
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OpenDatabaseHelper(IDBOpenDBRequest* aRequest,
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const nsAString& aName,
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const nsACString& aASCIIOrigin,
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PRUint64 aRequestedVersion,
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bool aForDeletion)
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: HelperBase(aRequest), mOpenDBRequest(aRequest), mName(aName),
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mASCIIOrigin(aASCIIOrigin), mRequestedVersion(aRequestedVersion),
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mForDeletion(aForDeletion), mDatabaseId(nsnull), mCurrentVersion(0),
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mLastObjectStoreId(0), mLastIndexId(0), mState(eCreated),
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mResultCode(NS_OK), mLoadDBMetadata(false)
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{
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NS_ASSERTION(!aForDeletion || !aRequestedVersion,
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"Can't be for deletion and request a version!");
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}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIRUNNABLE
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nsresult Init();
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nsresult Dispatch(nsIEventTarget* aDatabaseThread);
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nsresult RunImmediately();
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void SetError(nsresult rv)
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{
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NS_ASSERTION(NS_FAILED(rv), "Why are you telling me?");
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mResultCode = rv;
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}
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virtual ChildProcessSendResult
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MaybeSendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE
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{
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return Success_NotSent;
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}
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virtual nsresult GetResultCode() MOZ_OVERRIDE
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{
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return mResultCode;
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}
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nsresult NotifySetVersionFinished();
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nsresult NotifyDeleteFinished();
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void BlockDatabase();
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nsIAtom* Id() const
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{
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return mDatabaseId.get();
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}
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IDBDatabase* Database() const
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{
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NS_ASSERTION(mDatabase, "Calling at the wrong time!");
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return mDatabase;
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}
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static
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nsresult CreateDatabaseConnection(const nsAString& aName,
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nsIFile* aDBFile,
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nsIFile* aFileManagerDirectory,
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mozIStorageConnection** aConnection);
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protected:
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// Methods only called on the main thread
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nsresult EnsureSuccessResult();
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nsresult StartSetVersion();
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nsresult StartDelete();
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virtual nsresult GetSuccessResult(JSContext* aCx,
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jsval* aVal) MOZ_OVERRIDE;
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void DispatchSuccessEvent();
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void DispatchErrorEvent();
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virtual void ReleaseMainThreadObjects() MOZ_OVERRIDE;
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// Methods only called on the DB thread
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nsresult DoDatabaseWork();
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// In-params.
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nsRefPtr<IDBOpenDBRequest> mOpenDBRequest;
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nsString mName;
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nsCString mASCIIOrigin;
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PRUint64 mRequestedVersion;
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bool mForDeletion;
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nsCOMPtr<nsIAtom> mDatabaseId;
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// Out-params.
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nsTArray<nsRefPtr<ObjectStoreInfo> > mObjectStores;
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PRUint64 mCurrentVersion;
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nsString mDatabaseFilePath;
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PRInt64 mLastObjectStoreId;
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PRInt64 mLastIndexId;
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nsRefPtr<IDBDatabase> mDatabase;
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// State variables
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enum OpenDatabaseState {
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eCreated = 0, // Not yet dispatched to the DB thread
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eDBWork, // Waiting to do/doing work on the DB thread
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eFiringEvents, // Waiting to fire/firing events on the main thread
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eSetVersionPending, // Waiting on a SetVersionHelper
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eSetVersionCompleted, // SetVersionHelper is done
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eDeletePending, // Waiting on a DeleteDatabaseHelper
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eDeleteCompleted, // DeleteDatabaseHelper is done
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};
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OpenDatabaseState mState;
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nsresult mResultCode;
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nsRefPtr<FileManager> mFileManager;
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nsRefPtr<DatabaseInfo> mDBInfo;
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bool mLoadDBMetadata;
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};
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END_INDEXEDDB_NAMESPACE
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#endif // mozilla_dom_indexeddb_opendatabasehelper_h__
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