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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/media/eme/DetailedPromise.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/eme/DetailedPromise.cpp')
-rw-r--r--dom/media/eme/DetailedPromise.cpp87
1 files changed, 87 insertions, 0 deletions
diff --git a/dom/media/eme/DetailedPromise.cpp b/dom/media/eme/DetailedPromise.cpp
new file mode 100644
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+++ b/dom/media/eme/DetailedPromise.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 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/. */
+
+#include "DetailedPromise.h"
+
+#include "VideoUtils.h"
+#include "mozilla/dom/DOMException.h"
+#include "nsPrintfCString.h"
+
+namespace mozilla::dom {
+
+DetailedPromise::DetailedPromise(nsIGlobalObject* aGlobal,
+ const nsACString& aName)
+ : Promise(aGlobal),
+ mName(aName),
+ mResponded(false),
+ mStartTime(TimeStamp::Now()) {}
+
+DetailedPromise::DetailedPromise(nsIGlobalObject* aGlobal,
+ const nsACString& aName,
+ Telemetry::HistogramID aSuccessLatencyProbe,
+ Telemetry::HistogramID aFailureLatencyProbe)
+ : DetailedPromise(aGlobal, aName) {
+ mSuccessLatencyProbe.Construct(aSuccessLatencyProbe);
+ mFailureLatencyProbe.Construct(aFailureLatencyProbe);
+}
+
+DetailedPromise::~DetailedPromise() {
+ // It would be nice to assert that mResponded is identical to
+ // GetPromiseState() == PromiseState::Rejected. But by now we've been
+ // unlinked, so don't have a reference to our actual JS Promise object
+ // anymore.
+ MaybeReportTelemetry(kFailed);
+}
+
+void DetailedPromise::LogRejectionReason(uint32_t aErrorCode,
+ const nsACString& aReason) {
+ nsPrintfCString msg("%s promise rejected 0x%" PRIx32 " '%s'", mName.get(),
+ aErrorCode, PromiseFlatCString(aReason).get());
+ EME_LOG("%s", msg.get());
+
+ MaybeReportTelemetry(kFailed);
+
+ LogToBrowserConsole(NS_ConvertUTF8toUTF16(msg));
+}
+
+void DetailedPromise::MaybeReject(nsresult aArg, const nsACString& aReason) {
+ LogRejectionReason(static_cast<uint32_t>(aArg), aReason);
+
+ Promise::MaybeRejectWithDOMException(aArg, aReason);
+}
+
+void DetailedPromise::MaybeReject(ErrorResult&& aArg,
+ const nsACString& aReason) {
+ LogRejectionReason(aArg.ErrorCodeAsInt(), aReason);
+ Promise::MaybeReject(std::move(aArg));
+}
+
+/* static */
+already_AddRefed<DetailedPromise> DetailedPromise::Create(
+ nsIGlobalObject* aGlobal, ErrorResult& aRv, const nsACString& aName) {
+ RefPtr<DetailedPromise> promise = new DetailedPromise(aGlobal, aName);
+ promise->CreateWrapper(aRv);
+ return aRv.Failed() ? nullptr : promise.forget();
+}
+
+void DetailedPromise::MaybeReportTelemetry(eStatus aStatus) {
+ if (mResponded) {
+ return;
+ }
+ mResponded = true;
+ if (!mSuccessLatencyProbe.WasPassed() || !mFailureLatencyProbe.WasPassed()) {
+ return;
+ }
+ uint32_t latency = (TimeStamp::Now() - mStartTime).ToMilliseconds();
+ EME_LOG("%s %s latency %ums reported via telemetry", mName.get(),
+ ((aStatus == kSucceeded) ? "succcess" : "failure"), latency);
+ Telemetry::HistogramID tid = (aStatus == kSucceeded)
+ ? mSuccessLatencyProbe.Value()
+ : mFailureLatencyProbe.Value();
+ Telemetry::Accumulate(tid, latency);
+}
+
+} // namespace mozilla::dom