gecko-dev/dom/indexedDB/DatabaseInfo.h

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/* -*- 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__
#include "mozilla/dom/indexedDB/IndexedDatabase.h"
#include "mozilla/dom/quota/PersistenceType.h"
#include "nsRefPtrHashtable.h"
#include "nsHashKeys.h"
#include "mozilla/dom/indexedDB/Key.h"
#include "mozilla/dom/indexedDB/KeyPath.h"
#include "mozilla/dom/indexedDB/IDBObjectStore.h"
BEGIN_INDEXEDDB_NAMESPACE
class IndexedDBDatabaseChild;
struct ObjectStoreInfo;
typedef nsRefPtrHashtable<nsStringHashKey, ObjectStoreInfo>
ObjectStoreInfoHash;
struct DatabaseInfoGuts
{
typedef mozilla::dom::quota::PersistenceType PersistenceType;
DatabaseInfoGuts()
: nextObjectStoreId(1), nextIndexId(1)
{ }
bool operator==(const DatabaseInfoGuts& aOther) const
{
return this->name == aOther.name &&
this->group == aOther.group &&
this->origin == aOther.origin &&
this->version == aOther.version &&
this->persistenceType == aOther.persistenceType &&
this->nextObjectStoreId == aOther.nextObjectStoreId &&
this->nextIndexId == aOther.nextIndexId;
};
// Make sure to update ipc/SerializationHelpers.h when changing members here!
nsString name;
nsCString group;
nsCString origin;
uint64_t version;
PersistenceType persistenceType;
int64_t nextObjectStoreId;
int64_t nextIndexId;
};
struct DatabaseInfo : public DatabaseInfoGuts
{
DatabaseInfo()
: cloned(false)
{ }
~DatabaseInfo();
static bool Get(const nsACString& aId,
DatabaseInfo** aInfo);
static bool Put(DatabaseInfo* aInfo);
static void Remove(const nsACString& aId);
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();
nsCString id;
nsString filePath;
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(INT64_MIN), keyPath(0), unique(false), multiEntry(false) { }
#endif
bool operator==(const IndexInfo& aOther) const
{
return this->name == aOther.name &&
this->id == aOther.id &&
this->keyPath == aOther.keyPath &&
this->unique == aOther.unique &&
this->multiEntry == aOther.multiEntry;
};
// Make sure to update ipc/SerializationHelpers.h when changing members here!
nsString name;
int64_t id;
KeyPath keyPath;
bool unique;
bool multiEntry;
};
struct ObjectStoreInfoGuts
{
ObjectStoreInfoGuts()
: id(0), keyPath(0), autoIncrement(false)
{ }
bool operator==(const ObjectStoreInfoGuts& aOther) const
{
return this->name == aOther.name &&
this->id == aOther.id;
};
// Make sure to update ipc/SerializationHelpers.h when changing members here!
// Constant members, can be gotten on any thread
nsString name;
int64_t id;
KeyPath keyPath;
bool autoIncrement;
// Main-thread only members. This must *not* be touched on the database
// thread.
nsTArray<IndexInfo> indexes;
};
struct ObjectStoreInfo : public ObjectStoreInfoGuts
{
#ifdef NS_BUILD_REFCNT_LOGGING
ObjectStoreInfo();
#else
ObjectStoreInfo()
: nextAutoIncrementId(0), comittedAutoIncrementId(0) { }
#endif
ObjectStoreInfo(ObjectStoreInfo& aOther);
private:
#ifdef NS_BUILD_REFCNT_LOGGING
~ObjectStoreInfo();
#else
~ObjectStoreInfo() {}
#endif
public:
// Database-thread members. After the ObjectStoreInfo has been initialized,
// these can *only* be touced on the database thread.
int64_t nextAutoIncrementId;
int64_t 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(const IndexUpdateInfo& aOther);
~IndexUpdateInfo();
#endif
bool operator==(const IndexUpdateInfo& aOther) const
{
return this->indexId == aOther.indexId &&
this->indexUnique == aOther.indexUnique &&
this->value == aOther.value;
};
// Make sure to update ipc/SerializationHelpers.h when changing members here!
int64_t indexId;
bool indexUnique;
Key value;
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_databaseinfo_h__