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// Copyright (c) 2012 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 CONTENT_COMMON_INDEXED_DB_INDEXED_DB_DISPATCHER_H_
#define CONTENT_COMMON_INDEXED_DB_INDEXED_DB_DISPATCHER_H_
#pragma once
#include <map>
#include <vector>
#include "base/id_map.h"
#include "base/nullable_string16.h"
#include "content/common/content_export.h"
#include "ipc/ipc_sync_message_filter.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebExceptionCode.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabase.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabaseCallbacks.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBObjectStore.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBTransactionCallbacks.h"
#include "webkit/glue/worker_task_runner.h"
struct IndexedDBMsg_CallbacksSuccessCursorContinue_Params;
struct IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params;
struct IndexedDBMsg_CallbacksSuccessIDBCursor_Params;
class RendererWebIDBCursorImpl;
namespace IPC {
class Message;
}
namespace WebKit {
class WebFrame;
class WebIDBKeyRange;
class WebIDBTransaction;
}
namespace content {
class IndexedDBKey;
class IndexedDBKeyRange;
class SerializedScriptValue;
}
CONTENT_EXPORT extern const size_t kMaxIDBValueSizeInBytes;
// Handle the indexed db related communication for this context thread - the
// main thread and each worker thread have their own copies.
class CONTENT_EXPORT IndexedDBDispatcher
: public webkit_glue::WorkerTaskRunner::Observer {
public:
// Constructor made public to allow RenderThreadImpl to own a copy without
// failing a NOTREACHED in ThreadSpecificInstance in tests that instantiate
// two copies of RenderThreadImpl on the same thread. Everyone else probably
// wants to use ThreadSpecificInstance().
IndexedDBDispatcher();
virtual ~IndexedDBDispatcher();
static IndexedDBDispatcher* ThreadSpecificInstance();
// webkit_glue::WorkerTaskRunner::Observer implementation.
virtual void OnWorkerRunLoopStopped() OVERRIDE;
void OnMessageReceived(const IPC::Message& msg);
static bool Send(IPC::Message* msg);
void RequestIDBFactoryGetDatabaseNames(
WebKit::WebIDBCallbacks* callbacks,
const string16& origin,
WebKit::WebFrame* web_frame);
void RequestIDBFactoryOpen(
const string16& name,
WebKit::WebIDBCallbacks* callbacks,
const string16& origin,
WebKit::WebFrame* web_frame);
void RequestIDBFactoryDeleteDatabase(
const string16& name,
WebKit::WebIDBCallbacks* callbacks,
const string16& origin,
WebKit::WebFrame* web_frame);
void RequestIDBCursorUpdate(
const content::SerializedScriptValue& value,
WebKit::WebIDBCallbacks* callbacks_ptr,
int32 idb_cursor_id,
WebKit::WebExceptionCode* ec);
void RequestIDBCursorAdvance(
unsigned long count,
WebKit::WebIDBCallbacks* callbacks_ptr,
int32 idb_cursor_id,
WebKit::WebExceptionCode* ec);
void RequestIDBCursorContinue(
const content::IndexedDBKey& key,
WebKit::WebIDBCallbacks* callbacks_ptr,
int32 idb_cursor_id,
WebKit::WebExceptionCode* ec);
void RequestIDBCursorPrefetch(
int n,
WebKit::WebIDBCallbacks* callbacks_ptr,
int32 idb_cursor_id,
WebKit::WebExceptionCode* ec);
void RequestIDBCursorPrefetchReset(int used_prefetches, int unused_prefetches,
int32 idb_cursor_id);
void RequestIDBCursorDelete(
WebKit::WebIDBCallbacks* callbacks_ptr,
int32 idb_cursor_id,
WebKit::WebExceptionCode* ec);
void RequestIDBDatabaseClose(
int32 idb_database_id);
void RequestIDBDatabaseOpen(
WebKit::WebIDBDatabaseCallbacks* callbacks_ptr,
int32 idb_database_id);
void RequestIDBDatabaseSetVersion(
const string16& version,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_database_id,
WebKit::WebExceptionCode* ec);
void RequestIDBIndexOpenObjectCursor(
const WebKit::WebIDBKeyRange& idb_key_range,
unsigned short direction,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_index_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBIndexOpenKeyCursor(
const WebKit::WebIDBKeyRange& idb_key_range,
unsigned short direction,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_index_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBIndexCount(
const WebKit::WebIDBKeyRange& idb_key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_index_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBIndexGetObject(
const content::IndexedDBKeyRange& key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_index_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBIndexGetKey(
const content::IndexedDBKeyRange& key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_index_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStoreGet(
const content::IndexedDBKeyRange& key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStorePut(const content::SerializedScriptValue& value,
const content::IndexedDBKey& key,
WebKit::WebIDBObjectStore::PutMode putMode,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStoreDelete(
const content::IndexedDBKeyRange& key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStoreClear(
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStoreOpenCursor(
const WebKit::WebIDBKeyRange& idb_key_range,
unsigned short direction,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RequestIDBObjectStoreCount(
const WebKit::WebIDBKeyRange& idb_key_range,
WebKit::WebIDBCallbacks* callbacks,
int32 idb_object_store_id,
const WebKit::WebIDBTransaction& transaction,
WebKit::WebExceptionCode* ec);
void RegisterWebIDBTransactionCallbacks(
WebKit::WebIDBTransactionCallbacks* callbacks,
int32 id);
void CursorDestroyed(int32 cursor_id);
static int32 TransactionId(const WebKit::WebIDBTransaction& transaction);
private:
FRIEND_TEST_ALL_PREFIXES(IndexedDBDispatcherTest, ValueSizeTest);
// IDBCallback message handlers.
void OnSuccessNull(int32 response_id);
void OnSuccessIDBDatabase(int32 thread_id,
int32 response_id,
int32 object_id);
void OnSuccessIndexedDBKey(int32 thread_id,
int32 response_id,
const content::IndexedDBKey& key);
void OnSuccessIDBTransaction(int32 thread_id,
int32 response_id,
int32 object_id);
void OnSuccessOpenCursor(
const IndexedDBMsg_CallbacksSuccessIDBCursor_Params& p);
void OnSuccessCursorContinue(
const IndexedDBMsg_CallbacksSuccessCursorContinue_Params& p);
void OnSuccessCursorPrefetch(
const IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params& p);
void OnSuccessStringList(int32 thread_id,
int32 response_id,
const std::vector<string16>& value);
void OnSuccessSerializedScriptValue(
int32 thread_id,
int32 response_id,
const content::SerializedScriptValue& value);
void OnError(int32 thread_id,
int32 response_id,
int code,
const string16& message);
void OnBlocked(int32 thread_id, int32 response_id);
void OnAbort(int32 thread_id, int32 transaction_id);
void OnComplete(int32 thread_id, int32 transaction_id);
void OnVersionChange(int32 thread_id,
int32 database_id,
const string16& newVersion);
// Reset cursor prefetch caches for all cursors except exception_cursor_id.
void ResetCursorPrefetchCaches(int32 exception_cursor_id = -1);
// Careful! WebIDBCallbacks wraps non-threadsafe data types. It must be
// destroyed and used on the same thread it was created on.
IDMap<WebKit::WebIDBCallbacks, IDMapOwnPointer> pending_callbacks_;
IDMap<WebKit::WebIDBTransactionCallbacks, IDMapOwnPointer>
pending_transaction_callbacks_;
IDMap<WebKit::WebIDBDatabaseCallbacks, IDMapOwnPointer>
pending_database_callbacks_;
// Map from cursor id to RendererWebIDBCursorImpl.
std::map<int32, RendererWebIDBCursorImpl*> cursors_;
DISALLOW_COPY_AND_ASSIGN(IndexedDBDispatcher);
};
#endif // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_DISPATCHER_H_
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