1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 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/. */
#ifndef mozilla_dom_Performance_h
#define mozilla_dom_Performance_h
#include "mozilla/Attributes.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "nsCOMPtr.h"
#include "nsDOMNavigationTiming.h"
class nsITimedChannel;
class nsIHttpChannel;
namespace mozilla {
class ErrorResult;
namespace dom {
class PerformanceEntry;
class PerformanceNavigation;
class PerformanceObserver;
class PerformanceTiming;
namespace workers {
class WorkerPrivate;
}
// Base class for main-thread and worker Performance API
class Performance : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(Performance,
DOMEventTargetHelper)
static bool IsEnabled(JSContext* aCx, JSObject* aGlobal);
static bool IsObserverEnabled(JSContext* aCx, JSObject* aGlobal);
static already_AddRefed<Performance>
CreateForMainThread(nsPIDOMWindowInner* aWindow,
nsDOMNavigationTiming* aDOMTiming,
nsITimedChannel* aChannel,
Performance* aParentPerformance);
static already_AddRefed<Performance>
CreateForWorker(workers::WorkerPrivate* aWorkerPrivate);
JSObject* WrapObject(JSContext *cx,
JS::Handle<JSObject*> aGivenProto) override;
void GetEntries(nsTArray<RefPtr<PerformanceEntry>>& aRetval);
void GetEntriesByType(const nsAString& aEntryType,
nsTArray<RefPtr<PerformanceEntry>>& aRetval);
void GetEntriesByName(const nsAString& aName,
const Optional<nsAString>& aEntryType,
nsTArray<RefPtr<PerformanceEntry>>& aRetval);
virtual void AddEntry(nsIHttpChannel* channel,
nsITimedChannel* timedChannel) = 0;
void ClearResourceTimings();
virtual DOMHighResTimeStamp Now() const = 0;
void Mark(const nsAString& aName, ErrorResult& aRv);
void ClearMarks(const Optional<nsAString>& aName);
void Measure(const nsAString& aName,
const Optional<nsAString>& aStartMark,
const Optional<nsAString>& aEndMark,
ErrorResult& aRv);
void ClearMeasures(const Optional<nsAString>& aName);
void SetResourceTimingBufferSize(uint64_t aMaxSize);
void AddObserver(PerformanceObserver* aObserver);
void RemoveObserver(PerformanceObserver* aObserver);
void NotifyObservers();
void CancelNotificationObservers();
virtual PerformanceTiming* Timing() = 0;
virtual PerformanceNavigation* Navigation() = 0;
IMPL_EVENT_HANDLER(resourcetimingbufferfull)
virtual void GetMozMemory(JSContext *aCx,
JS::MutableHandle<JSObject*> aObj) = 0;
virtual nsDOMNavigationTiming* GetDOMTiming() const = 0;
virtual nsITimedChannel* GetChannel() const = 0;
virtual Performance* GetParentPerformance() const = 0;
protected:
Performance();
explicit Performance(nsPIDOMWindowInner* aWindow);
virtual ~Performance();
virtual void InsertUserEntry(PerformanceEntry* aEntry);
void InsertResourceEntry(PerformanceEntry* aEntry);
void ClearUserEntries(const Optional<nsAString>& aEntryName,
const nsAString& aEntryType);
DOMHighResTimeStamp ResolveTimestampFromName(const nsAString& aName,
ErrorResult& aRv);
virtual nsISupports* GetAsISupports() = 0;
virtual void DispatchBufferFullEvent() = 0;
virtual TimeStamp CreationTimeStamp() const = 0;
virtual DOMHighResTimeStamp CreationTime() const = 0;
virtual bool IsPerformanceTimingAttribute(const nsAString& aName) = 0;
virtual DOMHighResTimeStamp
GetPerformanceTimingFromString(const nsAString& aTimingName) = 0;
bool IsResourceEntryLimitReached() const
{
return mResourceEntries.Length() >= mResourceTimingBufferSize;
}
void LogEntry(PerformanceEntry* aEntry, const nsACString& aOwner) const;
void TimingNotification(PerformanceEntry* aEntry, const nsACString& aOwner,
uint64_t epoch);
void RunNotificationObserversTask();
void QueueEntry(PerformanceEntry* aEntry);
DOMHighResTimeStamp RoundTime(double aTime) const;
nsTObserverArray<PerformanceObserver*> mObservers;
private:
nsTArray<RefPtr<PerformanceEntry>> mUserEntries;
nsTArray<RefPtr<PerformanceEntry>> mResourceEntries;
uint64_t mResourceTimingBufferSize;
static const uint64_t kDefaultResourceTimingBufferSize = 150;
bool mPendingNotificationObserversTask;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_Performance_h
|
