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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 MOZ_FINAL : public DatabaseInfoGuts

 {

   DatabaseInfo()

   : cloned(false)

   { }

 private:

   // Private destructor, to discourage deletion outside of Release():

   ~DatabaseInfo();

 public:

   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 MOZ_FINAL : public ObjectStoreInfoGuts

 {

 #ifdef NS_BUILD_REFCNT_LOGGING

   ObjectStoreInfo();

 #else

   ObjectStoreInfo()

   : nextAutoIncrementId(0), comittedAutoIncrementId(0) { }

 #endif

   ObjectStoreInfo(ObjectStoreInfo& aOther);

 private:

   // Private destructor, to discourage deletion outside of Release():

 #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__