зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.3 KiB
C++
68 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 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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#ifndef __DetailedPromise_h__
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#define __DetailedPromise_h__
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#include "mozilla/dom/Promise.h"
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#include "mozilla/Telemetry.h"
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#include "EMEUtils.h"
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namespace mozilla {
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namespace dom {
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/*
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* This is pretty horrible; bug 1160445.
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* Extend Promise to add custom DOMException messages on rejection.
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* Get rid of this once we've ironed out EME errors in the wild.
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*/
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class DetailedPromise : public Promise {
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public:
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static already_AddRefed<DetailedPromise> Create(nsIGlobalObject* aGlobal,
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ErrorResult& aRv,
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const nsACString& aName);
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static already_AddRefed<DetailedPromise> Create(
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nsIGlobalObject* aGlobal, ErrorResult& aRv, const nsACString& aName,
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Telemetry::HistogramID aSuccessLatencyProbe,
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Telemetry::HistogramID aFailureLatencyProbe);
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template <typename T>
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void MaybeResolve(T&& aArg) {
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EME_LOG("%s promise resolved", mName.get());
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MaybeReportTelemetry(eStatus::kSucceeded);
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Promise::MaybeResolve(std::forward<T>(aArg));
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}
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void MaybeReject(nsresult aArg) = delete;
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void MaybeReject(nsresult aArg, const nsACString& aReason);
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void MaybeReject(ErrorResult& aArg) = delete;
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void MaybeReject(ErrorResult&, const nsACString& aReason);
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private:
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explicit DetailedPromise(nsIGlobalObject* aGlobal, const nsACString& aName);
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explicit DetailedPromise(nsIGlobalObject* aGlobal, const nsACString& aName,
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Telemetry::HistogramID aSuccessLatencyProbe,
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Telemetry::HistogramID aFailureLatencyProbe);
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virtual ~DetailedPromise();
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enum eStatus { kSucceeded, kFailed };
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void MaybeReportTelemetry(eStatus aStatus);
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nsCString mName;
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bool mResponded;
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TimeStamp mStartTime;
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Optional<Telemetry::HistogramID> mSuccessLatencyProbe;
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Optional<Telemetry::HistogramID> mFailureLatencyProbe;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // __DetailedPromise_h__
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