1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "TimelineMarker.h"
8
9 #include "jsapi.h"
10 #include "js/Exception.h"
11 #include "mozilla/dom/ProfileTimelineMarkerBinding.h"
12 #include "nsContentUtils.h"
13
14 namespace mozilla {
15
TimelineMarker(const char * aName,MarkerTracingType aTracingType,MarkerStackRequest aStackRequest)16 TimelineMarker::TimelineMarker(const char* aName,
17 MarkerTracingType aTracingType,
18 MarkerStackRequest aStackRequest)
19 : AbstractTimelineMarker(aName, aTracingType) {
20 CaptureStackIfNecessary(aTracingType, aStackRequest);
21 }
22
TimelineMarker(const char * aName,const TimeStamp & aTime,MarkerTracingType aTracingType,MarkerStackRequest aStackRequest)23 TimelineMarker::TimelineMarker(const char* aName, const TimeStamp& aTime,
24 MarkerTracingType aTracingType,
25 MarkerStackRequest aStackRequest)
26 : AbstractTimelineMarker(aName, aTime, aTracingType) {
27 CaptureStackIfNecessary(aTracingType, aStackRequest);
28 }
29
AddDetails(JSContext * aCx,dom::ProfileTimelineMarker & aMarker)30 void TimelineMarker::AddDetails(JSContext* aCx,
31 dom::ProfileTimelineMarker& aMarker) {
32 if (GetTracingType() == MarkerTracingType::START) {
33 aMarker.mProcessType.Construct(GetProcessType());
34 aMarker.mIsOffMainThread.Construct(IsOffMainThread());
35 }
36 }
37
GetStack()38 JSObject* TimelineMarker::GetStack() {
39 if (mStackTrace.initialized()) {
40 return mStackTrace;
41 }
42 return nullptr;
43 }
44
CaptureStack()45 void TimelineMarker::CaptureStack() {
46 JSContext* ctx = nsContentUtils::GetCurrentJSContext();
47 if (ctx) {
48 JS::RootedObject stack(ctx);
49 if (JS::CaptureCurrentStack(ctx, &stack)) {
50 mStackTrace.init(ctx, stack.get());
51 } else {
52 JS_ClearPendingException(ctx);
53 }
54 }
55 }
56
CaptureStackIfNecessary(MarkerTracingType aTracingType,MarkerStackRequest aStackRequest)57 void TimelineMarker::CaptureStackIfNecessary(MarkerTracingType aTracingType,
58 MarkerStackRequest aStackRequest) {
59 if ((aTracingType == MarkerTracingType::START ||
60 aTracingType == MarkerTracingType::TIMESTAMP) &&
61 aStackRequest != MarkerStackRequest::NO_STACK) {
62 CaptureStack();
63 }
64 }
65
66 } // namespace mozilla
67