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Issue #2053 - Part 3: Update PerformanceMark to User Timing L3

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There are a few minor differences between this and Mozilla's implementation:
(a) The type error messages were not hardcoded to the Performance class and were moved to Errors.msg or domerr.msg instead.
(b) Resist fingerprinting-pref changes were skipped.

Partially based on https://bugzilla.mozilla.org/show_bug.cgi?id=1724645
This commit is contained in:
FranklinDM 2023-04-06 19:32:32 +08:00 • committed by roytam1
commit 3b57ba1415
8 changed files with 197 additions and 19 deletions
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53
dom/performance/Performance.cpp
View file

@ -26,6 +26,7 @@
#include "mozilla/TimerClamping.h"
#include "WorkerPrivate.h"
#include "WorkerRunnable.h"
#include "WorkerScope.h"
#define PERFLOG(msg, ...) printf_stderr(msg, ##__VA_ARGS__)
@ -105,6 +106,27 @@ Performance::CreateForWorker(workers::WorkerPrivate* aWorkerPrivate)
return performance.forget();
}
/* static */
already_AddRefed<Performance> Performance::Get(JSContext* aCx,
nsIGlobalObject* aGlobal) {
RefPtr<Performance> performance;
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aGlobal);
if (window) {
performance = window->GetPerformance();
} else {
const WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(aCx);
if (!workerPrivate) {
return nullptr;
}
WorkerGlobalScope* scope = workerPrivate->GlobalScope();
MOZ_ASSERT(scope);
performance = scope->GetPerformance();
}
return performance.forget();
}
Performance::Performance()
: mResourceTimingBufferSize(kDefaultResourceTimingBufferSize)
, mPendingNotificationObserversTask(false)
@ -234,27 +256,42 @@ Performance::RoundTime(double aTime) const
return floor(aTime / maxResolutionMs) * maxResolutionMs;
}
void
Performance::Mark(const nsAString& aName, ErrorResult& aRv)
already_AddRefed<PerformanceMark> Performance::Mark(
JSContext* aCx,
const nsAString& aName,
const PerformanceMarkOptions& aMarkOptions,
ErrorResult& aRv)
{
// Don't add the entry if the buffer is full. XXX should be removed by bug 1159003.
if (mUserEntries.Length() >= mResourceTimingBufferSize) {
return;
return nullptr;
}
if (IsPerformanceTimingAttribute(aName)) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return;
nsCOMPtr<nsIGlobalObject> parent = GetParentObject();
if (!parent || parent->IsDying() || !parent->GetGlobalJSObject()) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
GlobalObject global(aCx, parent->GetGlobalJSObject());
if (global.Failed()) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
RefPtr<PerformanceMark> performanceMark =
new PerformanceMark(GetAsISupports(), aName, Now());
PerformanceMark::Constructor(global, aName, aMarkOptions, aRv);
if (aRv.Failed()) {
return nullptr;
}
InsertUserEntry(performanceMark);
if (profiler_is_active()) {
PROFILER_MARKER(NS_ConvertUTF16toUTF8(aName).get());
}
return performanceMark.forget();
}
void