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-rw-r--r--dom/indexedDB/ThreadLocal.h94
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diff --git a/dom/indexedDB/ThreadLocal.h b/dom/indexedDB/ThreadLocal.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_indexeddb_threadlocal_h__
+#define mozilla_dom_indexeddb_threadlocal_h__
+
+#include "IDBTransaction.h"
+#include "mozilla/dom/indexedDB/PBackgroundIDBSharedTypes.h"
+#include "ProfilerHelpers.h"
+
+namespace mozilla::dom {
+
+class IDBFactory;
+
+namespace indexedDB {
+
+class ThreadLocal {
+ friend class DefaultDelete<ThreadLocal>;
+ friend IDBFactory;
+
+ LoggingInfo mLoggingInfo;
+ Maybe<IDBTransaction&> mCurrentTransaction;
+ LoggingIdString<false> mLoggingIdString;
+
+ NS_DECL_OWNINGTHREAD
+
+ public:
+ ThreadLocal() = delete;
+ ThreadLocal(const ThreadLocal& aOther) = delete;
+
+ void AssertIsOnOwningThread() const { NS_ASSERT_OWNINGTHREAD(ThreadLocal); }
+
+ const LoggingInfo& GetLoggingInfo() const {
+ AssertIsOnOwningThread();
+
+ return mLoggingInfo;
+ }
+
+ const nsID& Id() const {
+ AssertIsOnOwningThread();
+
+ return mLoggingInfo.backgroundChildLoggingId();
+ }
+
+ const nsCString& IdString() const {
+ AssertIsOnOwningThread();
+
+ return mLoggingIdString;
+ }
+
+ int64_t NextTransactionSN(IDBTransaction::Mode aMode) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mLoggingInfo.nextTransactionSerialNumber() < INT64_MAX);
+ MOZ_ASSERT(mLoggingInfo.nextVersionChangeTransactionSerialNumber() >
+ INT64_MIN);
+
+ if (aMode == IDBTransaction::Mode::VersionChange) {
+ return mLoggingInfo.nextVersionChangeTransactionSerialNumber()--;
+ }
+
+ return mLoggingInfo.nextTransactionSerialNumber()++;
+ }
+
+ uint64_t NextRequestSN() {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mLoggingInfo.nextRequestSerialNumber() < UINT64_MAX);
+
+ return mLoggingInfo.nextRequestSerialNumber()++;
+ }
+
+ void SetCurrentTransaction(Maybe<IDBTransaction&> aCurrentTransaction) {
+ AssertIsOnOwningThread();
+
+ mCurrentTransaction = aCurrentTransaction;
+ }
+
+ Maybe<IDBTransaction&> MaybeCurrentTransactionRef() const {
+ AssertIsOnOwningThread();
+
+ return mCurrentTransaction;
+ }
+
+ private:
+ explicit ThreadLocal(const nsID& aBackgroundChildLoggingId);
+ ~ThreadLocal();
+};
+
+} // namespace indexedDB
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_indexeddb_threadlocal_h__