1 | /* |
2 | * Copyright (C) 2019 Apple 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 |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include "InspectorCPUProfilerAgent.h" |
28 | |
29 | #if ENABLE(RESOURCE_USAGE) |
30 | |
31 | #include "InstrumentingAgents.h" |
32 | #include "ResourceUsageThread.h" |
33 | #include <JavaScriptCore/InspectorEnvironment.h> |
34 | #include <wtf/Stopwatch.h> |
35 | |
36 | namespace WebCore { |
37 | |
38 | using namespace Inspector; |
39 | |
40 | InspectorCPUProfilerAgent::InspectorCPUProfilerAgent(PageAgentContext& context) |
41 | : InspectorAgentBase("CPUProfiler"_s , context) |
42 | , m_frontendDispatcher(std::make_unique<Inspector::CPUProfilerFrontendDispatcher>(context.frontendRouter)) |
43 | , m_backendDispatcher(Inspector::CPUProfilerBackendDispatcher::create(context.backendDispatcher, this)) |
44 | { |
45 | } |
46 | |
47 | void InspectorCPUProfilerAgent::didCreateFrontendAndBackend(FrontendRouter*, BackendDispatcher*) |
48 | { |
49 | m_instrumentingAgents.setInspectorCPUProfilerAgent(this); |
50 | } |
51 | |
52 | void InspectorCPUProfilerAgent::willDestroyFrontendAndBackend(DisconnectReason) |
53 | { |
54 | ErrorString ignored; |
55 | stopTracking(ignored); |
56 | |
57 | m_instrumentingAgents.setInspectorCPUProfilerAgent(nullptr); |
58 | } |
59 | |
60 | void InspectorCPUProfilerAgent::startTracking(ErrorString&) |
61 | { |
62 | if (m_tracking) |
63 | return; |
64 | |
65 | ResourceUsageThread::addObserver(this, CPU, [this] (const ResourceUsageData& data) { |
66 | collectSample(data); |
67 | }); |
68 | |
69 | m_tracking = true; |
70 | |
71 | m_frontendDispatcher->trackingStart(m_environment.executionStopwatch()->elapsedTime().seconds()); |
72 | } |
73 | |
74 | void InspectorCPUProfilerAgent::stopTracking(ErrorString&) |
75 | { |
76 | if (!m_tracking) |
77 | return; |
78 | |
79 | ResourceUsageThread::removeObserver(this); |
80 | |
81 | m_tracking = false; |
82 | |
83 | m_frontendDispatcher->trackingComplete(m_environment.executionStopwatch()->elapsedTime().seconds()); |
84 | } |
85 | |
86 | static Ref<Protocol::CPUProfiler::ThreadInfo> buildThreadInfo(const ThreadCPUInfo& thread) |
87 | { |
88 | ASSERT(thread.cpu <= 100); |
89 | |
90 | auto threadInfo = Protocol::CPUProfiler::ThreadInfo::create() |
91 | .setName(thread.name) |
92 | .setUsage(thread.cpu) |
93 | .release(); |
94 | |
95 | if (thread.type == ThreadCPUInfo::Type::Main) |
96 | threadInfo->setType(Protocol::CPUProfiler::ThreadInfo::Type::Main); |
97 | else if (thread.type == ThreadCPUInfo::Type::WebKit) |
98 | threadInfo->setType(Protocol::CPUProfiler::ThreadInfo::Type::WebKit); |
99 | |
100 | if (!thread.identifier.isEmpty()) |
101 | threadInfo->setTargetId(thread.identifier); |
102 | |
103 | return threadInfo; |
104 | } |
105 | |
106 | void InspectorCPUProfilerAgent::collectSample(const ResourceUsageData& data) |
107 | { |
108 | auto event = Protocol::CPUProfiler::Event::create() |
109 | .setTimestamp(m_environment.executionStopwatch()->elapsedTimeSince(data.timestamp).seconds()) |
110 | .setUsage(data.cpuExcludingDebuggerThreads) |
111 | .release(); |
112 | |
113 | if (!data.cpuThreads.isEmpty()) { |
114 | RefPtr<JSON::ArrayOf<Protocol::CPUProfiler::ThreadInfo>> threads = JSON::ArrayOf<Protocol::CPUProfiler::ThreadInfo>::create(); |
115 | for (auto& threadInfo : data.cpuThreads) |
116 | threads->addItem(buildThreadInfo(threadInfo)); |
117 | event->setThreads(WTFMove(threads)); |
118 | } |
119 | |
120 | m_frontendDispatcher->trackingUpdate(WTFMove(event)); |
121 | } |
122 | |
123 | } // namespace WebCore |
124 | |
125 | #endif // ENABLE(RESOURCE_USAGE) |
126 | |