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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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