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`Nullable<ClientType>` currently allows specifying either a concrete client type or all client types, but does not support more flexible scoping options. `ClientStorageScope` is designed to address that limitation, with future support planned for special purpose scopes, such as locking the metadata file shared by client directories. This patch updates existing code, particularly around directory locks, to use `ClientStorageScope` in place of `Nullable<ClientType>`. Support for additional scope types will be added in a follow-up patch. This patch focuses on transitioning to the new abstraction. Differential Revision: https://phabricator.services.mozilla.com/D243630
91 lines
3 KiB
C++
91 lines
3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "UniversalDirectoryLock.h"
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#include <utility>
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#include "nsDebug.h"
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#include "nsString.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/NotNull.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/ReverseIterator.h"
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#include "mozilla/dom/Nullable.h"
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#include "mozilla/dom/quota/ClientDirectoryLock.h"
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#include "mozilla/dom/quota/CommonMetadata.h"
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#include "mozilla/dom/quota/OriginScope.h"
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#include "mozilla/dom/quota/PersistenceScope.h"
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#include "mozilla/dom/quota/QuotaManager.h"
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namespace mozilla::dom::quota {
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RefPtr<ClientDirectoryLock> UniversalDirectoryLock::SpecializeForClient(
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PersistenceType aPersistenceType,
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const quota::OriginMetadata& aOriginMetadata,
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Client::Type aClientType) const {
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AssertIsOnOwningThread();
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MOZ_ASSERT(aPersistenceType != PERSISTENCE_TYPE_INVALID);
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MOZ_ASSERT(!aOriginMetadata.mGroup.IsEmpty());
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MOZ_ASSERT(!aOriginMetadata.mOrigin.IsEmpty());
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MOZ_ASSERT(aClientType < Client::TypeMax());
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MOZ_ASSERT(mAcquirePromiseHolder.IsEmpty());
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MOZ_ASSERT(mBlockedOn.IsEmpty());
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if (NS_WARN_IF(mExclusive)) {
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return nullptr;
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}
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RefPtr<ClientDirectoryLock> lock = ClientDirectoryLock::Create(
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mQuotaManager, PersistenceScope::CreateFromValue(aPersistenceType),
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OriginScope::FromOrigin(aOriginMetadata),
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ClientStorageScope::CreateFromClient(aClientType),
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/* aExclusive */ false, mInternal, ShouldUpdateLockIdTableFlag::Yes,
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mCategory);
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if (NS_WARN_IF(!Overlaps(*lock))) {
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return nullptr;
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}
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#ifdef DEBUG
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for (DirectoryLockImpl* const existingLock :
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Reversed(mQuotaManager->mDirectoryLocks)) {
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if (existingLock != this && !existingLock->MustWaitFor(*this)) {
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MOZ_ASSERT(!existingLock->MustWaitFor(*lock));
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}
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}
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#endif
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for (const auto& blockedLock : mBlocking) {
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if (blockedLock->MustWaitFor(*lock)) {
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lock->AddBlockingLock(*blockedLock);
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blockedLock->AddBlockedOnLock(*lock);
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}
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}
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mQuotaManager->RegisterDirectoryLock(*lock);
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if (mInvalidated) {
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lock->Invalidate();
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}
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return lock;
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}
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// static
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RefPtr<UniversalDirectoryLock> UniversalDirectoryLock::CreateInternal(
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MovingNotNull<RefPtr<QuotaManager>> aQuotaManager,
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const PersistenceScope& aPersistenceScope, const OriginScope& aOriginScope,
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const ClientStorageScope& aClientStorageScope, bool aExclusive,
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DirectoryLockCategory aCategory) {
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MOZ_ASSERT_IF(aOriginScope.IsOrigin(), !aOriginScope.GetOrigin().IsEmpty());
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return MakeRefPtr<UniversalDirectoryLock>(
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std::move(aQuotaManager), aPersistenceScope, aOriginScope,
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aClientStorageScope, aExclusive, true, ShouldUpdateLockIdTableFlag::Yes,
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aCategory);
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}
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} // namespace mozilla::dom::quota
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