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-rw-r--r--dom/localstorage/LSDatabase.h105
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diff --git a/dom/localstorage/LSDatabase.h b/dom/localstorage/LSDatabase.h
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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