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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,
#ifndef DOM_QUOTA_DIRECTORYLOCKCATEGORY_H_
#define DOM_QUOTA_DIRECTORYLOCKCATEGORY_H_
#include "mozilla/EnumSet.h"
namespace mozilla::dom::quota {
enum class DirectoryLockCategory : uint8_t {
None = 0,
// Used by operations which uninitialize storage.
UninitStorage,
// Used by operations which uninitialize origins.
UninitOrigins,
// Used by operations which uninitialize clients.
UninitClients,
};
// Pre-defined sets used for doing IsBlockedBy checks in OpenClientDirectory
// and in individual initialization methods.
//
// These sets account for the containment hierarchy between uninitialization
// operations:
// - Storage uninitialization implicitly uninitializes all origins and clients.
// - Origin uninitialization implicitly uninitializes all clients.
// Therefore, checks for a given category must include any broader categories
// that would also invalidate the target state.
// Used to check if creation and execution of storage initialization can be
// avoided if the storage has been already initialized.
constexpr EnumSet<DirectoryLockCategory> kUninitStorageOnlyCategory = {
DirectoryLockCategory::UninitStorage};
// Used to check if creation and execution of origin initialization can be
// avoided if the origin has been already initialized.
//
// Includes UninitStorage because storage-level uninitialization also
// uninitializes origins.
constexpr EnumSet<DirectoryLockCategory> kUninitOriginsAndBroaderCategories = {
DirectoryLockCategory::UninitOrigins, DirectoryLockCategory::UninitStorage};
// Used to check if creation and execution of client initialization can be
// avoided if the client has been already initialized.
//
// Includes UninitOrigins and UninitStorage because both implicitly uninitialize
// clients.
constexpr EnumSet<DirectoryLockCategory> kUninitClientsAndBroaderCategories = {
DirectoryLockCategory::UninitClients, DirectoryLockCategory::UninitOrigins,
DirectoryLockCategory::UninitStorage};
} // namespace mozilla::dom::quota
#endif // DOM_QUOTA_DIRECTORYLOCKCATEGORY_H_