[IndexedDB] Add transaction coordinator.

chrome/browser/in_process_webkit/indexed_db_dispatcher_host.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #define CHROME_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "base/process.h"
 #include "base/ref_counted.h"
 #include "chrome/browser/in_process_webkit/webkit_context.h"
 #include "ipc/ipc_message.h"
 
 class IndexedDBKey;
 class SerializedScriptValue;
 struct ViewHostMsg_IDBDatabaseCreateObjectStore_Params;
 struct ViewHostMsg_IDBFactoryOpen_Params;
 struct ViewHostMsg_IDBObjectStoreCreateIndex_Params;
 
 namespace WebKit {
 class WebIDBDatabase;
 class WebIDBIndex;
 class WebIDBObjectStore;
+class WebIDBTransaction;
 }
 
 // Handles all IndexedDB related messages from a particular renderer process.
 class IndexedDBDispatcherHost
     : public base::RefCountedThreadSafe<IndexedDBDispatcherHost> {
  public:
   // Only call the constructor from the UI thread.
   IndexedDBDispatcherHost(IPC::Message::Sender* sender,
                           WebKitContext* webkit_context);
 
@@ skipping 14 matching lines @@
   // A shortcut for accessing our context.
   IndexedDBContext* Context() {
     return webkit_context_->indexed_db_context();
   }
 
   // The various IndexedDBCallbacks children call these methods to add the
   // results into the applicable map.  See below for more details.
   int32 Add(WebKit::WebIDBDatabase* idb_database);
   int32 Add(WebKit::WebIDBIndex* idb_index);
   int32 Add(WebKit::WebIDBObjectStore* idb_object_store);
+  void Add(WebKit::WebIDBTransaction* idb_transaction);
 
  private:
   friend class base::RefCountedThreadSafe<IndexedDBDispatcherHost>;
   ~IndexedDBDispatcherHost();
 
   // Message processing. Most of the work is delegated to the dispatcher hosts
   // below.
   void OnMessageReceivedWebKit(const IPC::Message& message);
   void OnIDBFactoryOpen(const ViewHostMsg_IDBFactoryOpen_Params& p);
+  void OnIDBFactoryAbortPendingTransactions(const std::vector<int32>& ids);
 
   // Helper templates.
   template <class ReturnType>
   ReturnType* GetOrTerminateProcess(
     IDMap<ReturnType, IDMapOwnPointer>* map, int32 return_object_id,
     IPC::Message* reply_msg, uint32 message_type);
 
   template <typename ReplyType, typename MessageType,
             typename WebObjectType, typename Method>
   void SyncGetter(IDMap<WebObjectType, IDMapOwnPointer>* map, int32 object_id,
@@ skipping 14 matching lines @@
     void OnName(int32 idb_database_id, IPC::Message* reply_msg);
     void OnDescription(int32 idb_database_id, IPC::Message* reply_msg);
     void OnVersion(int32 idb_database_id, IPC::Message* reply_msg);
     void OnObjectStores(int32 idb_database_id, IPC::Message* reply_msg);
     void OnCreateObjectStore(
         const ViewHostMsg_IDBDatabaseCreateObjectStore_Params& params);
     void OnObjectStore(int32 idb_database_id, const string16& name, int32 mode,
                        IPC::Message* reply_msg);
     void OnRemoveObjectStore(int32 idb_database_id, int32 response_id,
                              const string16& name);
+    void OnTransaction(int32 idb_database_id,
+                       const std::vector<string16>& names,
+                       int32 mode, int32 timeout, IPC::Message* reply_msg);
     void OnDestroyed(int32 idb_database_id);
 
     IndexedDBDispatcherHost* parent_;
     IDMap<WebKit::WebIDBDatabase, IDMapOwnPointer> map_;
   };
 
   class IndexDispatcherHost {
    public:
     explicit IndexDispatcherHost(IndexedDBDispatcherHost* parent);
     ~IndexDispatcherHost();
@@ skipping 32 matching lines @@
         const ViewHostMsg_IDBObjectStoreCreateIndex_Params& params);
     void OnIndex(int32 idb_object_store_id, const string16& name,
                  IPC::Message* reply_msg);
     void OnRemoveIndex(int32 idb_object_store_id, int32 response_id,
                        const string16& name);
     void OnDestroyed(int32 idb_object_store_id);
 
     IndexedDBDispatcherHost* parent_;
     IDMap<WebKit::WebIDBObjectStore, IDMapOwnPointer> map_;
   };
+
+  class TransactionDispatcherHost {
+   public:
+    explicit TransactionDispatcherHost(IndexedDBDispatcherHost* parent);
+    ~TransactionDispatcherHost();
+
+    bool OnMessageReceived(const IPC::Message& message, bool *msg_is_ok);
+    void Send(IPC::Message* message);
+
+    // TODO: add the rest of the transaction methods.
+    void OnDestroyed(int32 idb_transaction_id);
+
+    IndexedDBDispatcherHost* parent_;
+    IDMap<WebKit::WebIDBTransaction, IDMapOwnPointer> map_;
+  };
+
   // Only use on the IO thread.
   IPC::Message::Sender* sender_;
 
   // Data shared between renderer processes with the same profile.
   scoped_refptr<WebKitContext> webkit_context_;
 
   // Only access on WebKit thread.
   scoped_ptr<DatabaseDispatcherHost> database_dispatcher_host_;
   scoped_ptr<IndexDispatcherHost> index_dispatcher_host_;
   scoped_ptr<ObjectStoreDispatcherHost> object_store_dispatcher_host_;
+  scoped_ptr<TransactionDispatcherHost> transaction_dispatcher_host_;
 
   // If we get a corrupt message from a renderer, we need to kill it using this
   // handle.
   base::ProcessHandle process_handle_;
 
   // Used to dispatch messages to the correct view host.
   int process_id_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBDispatcherHost);
 };
 
 #endif  // CHROME_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_