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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=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_localstorage_LSDatabase_h
#define mozilla_dom_localstorage_LSDatabase_h
#include <cstdint>
#include "ErrorList.h"
#include "mozilla/Assertions.h"
#include "mozilla/StaticPtr.h"
#include "nsISupports.h"
#include "nsString.h"
#include "nsTArrayForwardDeclare.h"
namespace mozilla::dom {
class LSDatabaseChild;
class LSNotifyInfo;
class LSObject;
class LSSnapshot;
class LSDatabase final {
class Observer;
LSDatabaseChild* mActor;
LSSnapshot* mSnapshot;
const nsCString mOrigin;
bool mAllowedToClose;
bool mRequestedAllowToClose;
static StaticRefPtr<Observer> sObserver;
public:
explicit LSDatabase(const nsACString& aOrigin);
static LSDatabase* Get(const nsACString& aOrigin);
NS_INLINE_DECL_REFCOUNTING(LSDatabase)
void AssertIsOnOwningThread() const { NS_ASSERT_OWNINGTHREAD(LSDatabase); }
void SetActor(LSDatabaseChild* aActor);
void ClearActor() {
AssertIsOnOwningThread();
MOZ_ASSERT(mActor);
mActor = nullptr;
}
bool IsAllowedToClose() const {
AssertIsOnOwningThread();
return mAllowedToClose;
}
void RequestAllowToClose();
void NoteFinishedSnapshot(LSSnapshot* aSnapshot);
nsresult GetLength(LSObject* aObject, uint32_t* aResult);
nsresult GetKey(LSObject* aObject, uint32_t aIndex, nsAString& aResult);
nsresult GetItem(LSObject* aObject, const nsAString& aKey,
nsAString& aResult);
nsresult GetKeys(LSObject* aObject, nsTArray<nsString>& aKeys);
nsresult SetItem(LSObject* aObject, const nsAString& aKey,
const nsAString& aValue, LSNotifyInfo& aNotifyInfo);
nsresult RemoveItem(LSObject* aObject, const nsAString& aKey,
LSNotifyInfo& aNotifyInfo);
nsresult Clear(LSObject* aObject, LSNotifyInfo& aNotifyInfo);
nsresult BeginExplicitSnapshot(LSObject* aObject);
nsresult CheckpointExplicitSnapshot();
nsresult EndExplicitSnapshot();
bool HasSnapshot() const;
int64_t GetSnapshotUsage() const;
private:
~LSDatabase();
nsresult EnsureSnapshot(LSObject* aObject, const nsAString& aKey,
bool aExplicit = false);
void AllowToClose();
};
} // namespace mozilla::dom
#endif // mozilla_dom_localstorage_LSDatabase_h
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