gecko/dom/indexedDB/DatabaseInfo.h
2012-05-21 12:12:37 +01:00

151 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_indexeddb_databaseinfo_h__
#define mozilla_dom_indexeddb_databaseinfo_h__
// Only meant to be included in IndexedDB source files, not exported.
#include "IndexedDatabase.h"
#include "Key.h"
#include "IDBObjectStore.h"
#include "nsRefPtrHashtable.h"
#include "nsHashKeys.h"
BEGIN_INDEXEDDB_NAMESPACE
struct ObjectStoreInfo;
typedef nsRefPtrHashtable<nsStringHashKey, ObjectStoreInfo>
ObjectStoreInfoHash;
class IDBDatabase;
class OpenDatabaseHelper;
struct DatabaseInfo
{
friend class IDBDatabase;
friend class OpenDatabaseHelper;
private:
DatabaseInfo()
: nextObjectStoreId(1),
nextIndexId(1),
cloned(false)
{ }
~DatabaseInfo();
static bool Get(nsIAtom* aId,
DatabaseInfo** aInfo);
static bool Put(DatabaseInfo* aInfo);
public:
static void Remove(nsIAtom* aId);
static void RemoveAllForOrigin(const nsACString& aOrigin);
bool GetObjectStoreNames(nsTArray<nsString>& aNames);
bool ContainsStoreName(const nsAString& aName);
ObjectStoreInfo* GetObjectStore(const nsAString& aName);
bool PutObjectStore(ObjectStoreInfo* aInfo);
void RemoveObjectStore(const nsAString& aName);
already_AddRefed<DatabaseInfo> Clone();
nsString name;
nsCString origin;
PRUint64 version;
nsCOMPtr<nsIAtom> id;
nsString filePath;
PRInt64 nextObjectStoreId;
PRInt64 nextIndexId;
bool cloned;
nsAutoPtr<ObjectStoreInfoHash> objectStoreHash;
NS_INLINE_DECL_REFCOUNTING(DatabaseInfo)
};
struct IndexInfo
{
#ifdef NS_BUILD_REFCNT_LOGGING
IndexInfo();
IndexInfo(const IndexInfo& aOther);
~IndexInfo();
#else
IndexInfo()
: id(LL_MININT), unique(false), multiEntry(false) { }
#endif
PRInt64 id;
nsString name;
nsString keyPath;
nsTArray<nsString> keyPathArray;
bool unique;
bool multiEntry;
};
struct ObjectStoreInfo
{
#ifdef NS_BUILD_REFCNT_LOGGING
ObjectStoreInfo();
#else
ObjectStoreInfo()
: id(0), nextAutoIncrementId(0), comittedAutoIncrementId(0) { }
#endif
ObjectStoreInfo(ObjectStoreInfo& aOther);
private:
#ifdef NS_BUILD_REFCNT_LOGGING
~ObjectStoreInfo();
#else
~ObjectStoreInfo() {}
#endif
public:
// Constant members, can be gotten on any thread
nsString name;
PRInt64 id;
nsString keyPath;
nsTArray<nsString> keyPathArray;
// Main-thread only members. This must *not* be touced on the database thread
nsTArray<IndexInfo> indexes;
// Database-thread members. After the ObjectStoreInfo has been initialized,
// these can *only* be touced on the database thread.
PRInt64 nextAutoIncrementId;
PRInt64 comittedAutoIncrementId;
// This is threadsafe since the ObjectStoreInfos are created on the database
// thread but then only used from the main thread. Ideal would be if we
// could transfer ownership from the database thread to the main thread, but
// we don't have that ability yet.
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ObjectStoreInfo)
};
struct IndexUpdateInfo
{
#ifdef NS_BUILD_REFCNT_LOGGING
IndexUpdateInfo();
~IndexUpdateInfo();
#endif
PRInt64 indexId;
bool indexUnique;
Key value;
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_databaseinfo_h__