1 files changed, 74 insertions, 0 deletions
diff --git a/dom/workers/sharedworkers/SharedWorkerService.h b/dom/workers/sharedworkers/SharedWorkerService.h
new file mode 100644
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+++ b/dom/workers/sharedworkers/SharedWorkerService.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_SharedWorkerService_h
+#define mozilla_dom_SharedWorkerService_h
+
+#include "mozilla/dom/quota/CheckedUnsafePtr.h"
+#include "nsISupportsImpl.h"
+#include "nsTArray.h"
+
+class nsIEventTarget;
+
+namespace mozilla {
+
+namespace ipc {
+class PrincipalInfo;
+}
+
+namespace dom {
+
+class MessagePortIdentifier;
+class RemoteWorkerData;
+class SharedWorkerManager;
+class SharedWorkerParent;
+class UniqueMessagePortId;
+
+/**
+ * PBackground service that creates and tracks the per-worker
+ * SharedWorkerManager instances, allowing rendezvous between SharedWorkerParent
+ * instances and the SharedWorkerManagers they want to talk to (1:1).
+ */
+class SharedWorkerService final {
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SharedWorkerService);
+
+  // This can be called on PBackground thread only.
+  static already_AddRefed<SharedWorkerService> GetOrCreate();
+
+  // The service, if already created, is available on any thread using this
+  // method.
+  static SharedWorkerService* Get();
+
+  // PBackground method only.
+  void GetOrCreateWorkerManager(SharedWorkerParent* aActor,
+                                const RemoteWorkerData& aData,
+                                uint64_t aWindowID,
+                                const MessagePortIdentifier& aPortIdentifier);
+
+  void GetOrCreateWorkerManagerOnMainThread(
+      nsIEventTarget* aBackgroundEventTarget, SharedWorkerParent* aActor,
+      const RemoteWorkerData& aData, uint64_t aWindowID,
+      UniqueMessagePortId& aPortIdentifier);
+
+  void RemoveWorkerManagerOnMainThread(SharedWorkerManager* aManager);
+
+ private:
+  SharedWorkerService() = default;
+  ~SharedWorkerService() = default;
+
+  void ErrorPropagationOnMainThread(nsIEventTarget* aBackgroundEventTarget,
+                                    SharedWorkerParent* aActor,
+                                    nsresult aError);
+
+  // Touched on main-thread only.
+  nsTArray<RefPtr<SharedWorkerManager>> mWorkerManagers;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_SharedWorkerService_h