1 files changed, 68 insertions, 0 deletions
diff --git a/dom/serviceworkers/FetchEventOpProxyParent.h b/dom/serviceworkers/FetchEventOpProxyParent.h
new file mode 100644
index 0000000000..e657ebd21a
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+++ b/dom/serviceworkers/FetchEventOpProxyParent.h
@@ -0,0 +1,68 @@
+/* -*- 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_fetcheventopproxyparent_h__
+#define mozilla_dom_fetcheventopproxyparent_h__
+
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/PFetchEventOpProxyParent.h"
+#include "mozilla/dom/ServiceWorkerOpPromise.h"
+
+namespace mozilla::dom {
+
+class FetchEventOpParent;
+class PRemoteWorkerParent;
+class ParentToParentServiceWorkerFetchEventOpArgs;
+
+/**
+ * FetchEventOpProxyParent owns a FetchEventOpParent in order to propagate
+ * the respondWith() value by directly calling SendRespondWith on the
+ * FetchEventOpParent, but the call to Send__delete__ is handled via MozPromise.
+ * This is done because this actor may only be created after its managing
+ * PRemoteWorker is created, which is asynchronous and may fail.  We take on
+ * responsibility for the promise once we are created, but we may not be created
+ * if the RemoteWorker is never successfully launched.
+ */
+class FetchEventOpProxyParent final : public PFetchEventOpProxyParent {
+  friend class PFetchEventOpProxyParent;
+
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FetchEventOpProxyParent, override);
+
+  static void Create(
+      PRemoteWorkerParent* aManager,
+      RefPtr<ServiceWorkerFetchEventOpPromise::Private>&& aPromise,
+      const ParentToParentServiceWorkerFetchEventOpArgs& aArgs,
+      RefPtr<FetchEventOpParent> aReal, nsCOMPtr<nsIInputStream> aBodyStream);
+
+ private:
+  FetchEventOpProxyParent(
+      RefPtr<FetchEventOpParent>&& aReal,
+      RefPtr<ServiceWorkerFetchEventOpPromise::Private>&& aPromise);
+
+  ~FetchEventOpProxyParent();
+
+  mozilla::ipc::IPCResult RecvAsyncLog(const nsCString& aScriptSpec,
+                                       const uint32_t& aLineNumber,
+                                       const uint32_t& aColumnNumber,
+                                       const nsCString& aMessageName,
+                                       nsTArray<nsString>&& aParams);
+
+  mozilla::ipc::IPCResult RecvRespondWith(
+      const ChildToParentFetchEventRespondWithResult& aResult);
+
+  mozilla::ipc::IPCResult Recv__delete__(
+      const ServiceWorkerFetchEventOpResult& aResult);
+
+  void ActorDestroy(ActorDestroyReason) override;
+
+  RefPtr<FetchEventOpParent> mReal;
+  RefPtr<ServiceWorkerFetchEventOpPromise::Private> mLifetimePromise;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_fetcheventopproxyparent_h__