102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#include "DetailedPromise.h"
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#include "mozilla/dom/DOMException.h"
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#include "nsPrintfCString.h"
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namespace mozilla {
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namespace dom {
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DetailedPromise::DetailedPromise(nsIGlobalObject* aGlobal,
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const nsACString& aName)
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: Promise(aGlobal)
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, mName(aName)
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, mResponded(false)
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, mStartTime(TimeStamp::Now())
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{
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}
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DetailedPromise::DetailedPromise(nsIGlobalObject* aGlobal,
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const nsACString& aName,
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Telemetry::ID aSuccessLatencyProbe,
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Telemetry::ID aFailureLatencyProbe)
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: DetailedPromise(aGlobal, aName)
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{
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mSuccessLatencyProbe.Construct(aSuccessLatencyProbe);
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mFailureLatencyProbe.Construct(aFailureLatencyProbe);
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}
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DetailedPromise::~DetailedPromise()
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{
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// It would be nice to assert that mResponded is identical to
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// GetPromiseState() == PromiseState::Rejected. But by now we've been
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// unlinked, so don't have a reference to our actual JS Promise object
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// anymore.
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MaybeReportTelemetry(Failed);
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}
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void
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DetailedPromise::MaybeReject(nsresult aArg, const nsACString& aReason)
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{
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nsPrintfCString msg("%s promise rejected 0x%x '%s'", mName.get(), aArg,
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PromiseFlatCString(aReason).get());
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EME_LOG(msg.get());
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MaybeReportTelemetry(Failed);
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LogToBrowserConsole(NS_ConvertUTF8toUTF16(msg));
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ErrorResult rv;
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rv.ThrowDOMException(aArg, aReason);
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Promise::MaybeReject(rv);
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}
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void
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DetailedPromise::MaybeReject(ErrorResult&, const nsACString& aReason)
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{
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NS_NOTREACHED("nsresult expected in MaybeReject()");
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}
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/* static */ already_AddRefed<DetailedPromise>
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DetailedPromise::Create(nsIGlobalObject* aGlobal,
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ErrorResult& aRv,
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const nsACString& aName)
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{
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RefPtr<DetailedPromise> promise = new DetailedPromise(aGlobal, aName);
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promise->CreateWrapper(nullptr, aRv);
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return aRv.Failed() ? nullptr : promise.forget();
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}
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/* static */ already_AddRefed<DetailedPromise>
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DetailedPromise::Create(nsIGlobalObject* aGlobal,
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ErrorResult& aRv,
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const nsACString& aName,
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Telemetry::ID aSuccessLatencyProbe,
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Telemetry::ID aFailureLatencyProbe)
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{
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RefPtr<DetailedPromise> promise = new DetailedPromise(aGlobal, aName, aSuccessLatencyProbe, aFailureLatencyProbe);
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promise->CreateWrapper(nullptr, aRv);
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return aRv.Failed() ? nullptr : promise.forget();
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}
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void
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DetailedPromise::MaybeReportTelemetry(Status aStatus)
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{
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if (mResponded) {
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return;
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}
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mResponded = true;
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if (!mSuccessLatencyProbe.WasPassed() || !mFailureLatencyProbe.WasPassed()) {
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return;
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}
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uint32_t latency = (TimeStamp::Now() - mStartTime).ToMilliseconds();
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EME_LOG("%s %s latency %ums reported via telemetry", mName.get(),
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((aStatus == Succeeded) ? "succcess" : "failure"), latency);
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}
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} // namespace dom
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} // namespace mozilla
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