зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
2.4 KiB
C++
76 строки
2.4 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_fetcheventopparent_h__
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#define mozilla_dom_fetcheventopparent_h__
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#include "nsISupports.h"
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#include "mozilla/dom/FetchEventOpProxyParent.h"
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#include "mozilla/dom/PFetchEventOpParent.h"
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namespace mozilla::dom {
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class FetchEventOpParent final : public PFetchEventOpParent {
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friend class PFetchEventOpParent;
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public:
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NS_INLINE_DECL_REFCOUNTING(FetchEventOpParent)
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FetchEventOpParent() = default;
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// Transition from the Pending state to the Started state. Returns the preload
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// response and response end args, if it has already arrived.
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std::tuple<Maybe<ParentToParentInternalResponse>, Maybe<ResponseEndArgs>>
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OnStart(
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MovingNotNull<RefPtr<FetchEventOpProxyParent>> aFetchEventOpProxyParent);
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// Transition from the Started state to the Finished state.
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void OnFinish();
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private:
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~FetchEventOpParent() = default;
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// IPDL methods
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mozilla::ipc::IPCResult RecvPreloadResponse(
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ParentToParentInternalResponse&& aResponse);
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mozilla::ipc::IPCResult RecvPreloadResponseTiming(ResponseTiming&& aTiming);
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mozilla::ipc::IPCResult RecvPreloadResponseEnd(ResponseEndArgs&& aArgs);
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void ActorDestroy(ActorDestroyReason) override;
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struct Pending {
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Maybe<ParentToParentInternalResponse> mPreloadResponse;
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Maybe<ResponseTiming> mTiming;
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Maybe<ResponseEndArgs> mEndArgs;
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};
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struct Started {
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NotNull<RefPtr<FetchEventOpProxyParent>> mFetchEventOpProxyParent;
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};
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struct Finished {};
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using State = Variant<Pending, Started, Finished>;
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// Tracks the state of the fetch event.
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//
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// Pending: the fetch event is waiting in RemoteWorkerController::mPendingOps
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// and if the preload response arrives, we have to save it.
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// Started: the FetchEventOpProxyParent has been created, and if the preload
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// response arrives then we should forward it.
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// Finished: the response has been propagated to the parent process, if the
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// preload response arrives now then we simply drop it.
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State mState = AsVariant(Pending());
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_fetcheventopparent_h__
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