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Side by Side Diff: third_party/WebKit/Source/platform/PlatformInstrumentation.h

Issue 2760363002: [instrumentation] Generalize instrumentation to be used beyond the core layer (Closed)
Patch Set: Created 3 years, 9 months ago
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1 /*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef PlatformInstrumentation_h
32 #define PlatformInstrumentation_h
33
34 #include "platform/PlatformExport.h"
35 #include "platform/instrumentation/tracing/TraceEvent.h"
36 #include "wtf/text/WTFString.h"
37
38 namespace blink {
39
40 class PLATFORM_EXPORT PlatformInstrumentation {
41 public:
42 class LazyPixelRefTracker : TraceEvent::TraceScopedTrackableObject<void*> {
43 public:
44 LazyPixelRefTracker(void* instance)
45 : TraceEvent::TraceScopedTrackableObject<void*>(CategoryName,
46 LazyPixelRef,
47 instance) {}
48 };
49
50 static const char ImageDecodeEvent[];
51 static const char ImageResizeEvent[];
52 static const char DrawLazyPixelRefEvent[];
53 static const char DecodeLazyPixelRefEvent[];
54
55 static const char ImageTypeArgument[];
56 static const char CachedArgument[];
57
58 static const char LazyPixelRef[];
59
60 static void willDecodeImage(const String& imageType);
61 static void didDecodeImage();
62 static void didDrawLazyPixelRef(unsigned long long lazyPixelRefId);
63 static void willDecodeLazyPixelRef(unsigned long long lazyPixelRefId);
64 static void didDecodeLazyPixelRef();
65
66 private:
67 static const char CategoryName[];
68 };
69
70 inline void PlatformInstrumentation::willDecodeImage(const String& imageType) {
71 TRACE_EVENT_BEGIN1(CategoryName, ImageDecodeEvent, ImageTypeArgument,
72 imageType.ascii());
73 }
74
75 inline void PlatformInstrumentation::didDecodeImage() {
76 TRACE_EVENT_END0(CategoryName, ImageDecodeEvent);
77 }
78
79 inline void PlatformInstrumentation::didDrawLazyPixelRef(
80 unsigned long long lazyPixelRefId) {
81 TRACE_EVENT_INSTANT1(CategoryName, DrawLazyPixelRefEvent,
82 TRACE_EVENT_SCOPE_THREAD, LazyPixelRef, lazyPixelRefId);
83 }
84
85 inline void PlatformInstrumentation::willDecodeLazyPixelRef(
86 unsigned long long lazyPixelRefId) {
87 TRACE_EVENT_BEGIN1(CategoryName, DecodeLazyPixelRefEvent, LazyPixelRef,
88 lazyPixelRefId);
89 }
90
91 inline void PlatformInstrumentation::didDecodeLazyPixelRef() {
92 TRACE_EVENT_END0(CategoryName, DecodeLazyPixelRefEvent);
93 }
94
95 } // namespace blink
96
97 #endif // PlatformInstrumentation_h
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