1 | /* |
2 | * Copyright (C) 2008 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. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include "ProfileGenerator.h" |
28 | |
29 | #include "CallFrame.h" |
30 | #include "CodeBlock.h" |
31 | #include "JSGlobalObject.h" |
32 | #include "JSStringRef.h" |
33 | #include "JSFunction.h" |
34 | #include "Interpreter.h" |
35 | #include "Profile.h" |
36 | #include "Profiler.h" |
37 | #include "Tracing.h" |
38 | |
39 | namespace JSC { |
40 | |
41 | static const char* NonJSExecution = "(idle)" ; |
42 | |
43 | PassRefPtr<ProfileGenerator> ProfileGenerator::create(const UString& title, ExecState* originatingExec, unsigned uid) |
44 | { |
45 | return adoptRef(p: new ProfileGenerator(title, originatingExec, uid)); |
46 | } |
47 | |
48 | ProfileGenerator::ProfileGenerator(const UString& title, ExecState* originatingExec, unsigned uid) |
49 | : m_originatingGlobalExec(originatingExec ? originatingExec->lexicalGlobalObject()->globalExec() : 0) |
50 | , m_profileGroup(originatingExec ? originatingExec->lexicalGlobalObject()->profileGroup() : 0) |
51 | { |
52 | m_profile = Profile::create(title, uid); |
53 | m_currentNode = m_head = m_profile->head(); |
54 | if (originatingExec) |
55 | addParentForConsoleStart(originatingExec); |
56 | } |
57 | |
58 | void ProfileGenerator::addParentForConsoleStart(ExecState* exec) |
59 | { |
60 | int lineNumber; |
61 | intptr_t sourceID; |
62 | UString sourceURL; |
63 | JSValue function; |
64 | |
65 | exec->interpreter()->retrieveLastCaller(exec, lineNumber, sourceID, sourceURL, function); |
66 | m_currentNode = ProfileNode::create(callIdentifier: Profiler::createCallIdentifier(exec, function ? function.toThisObject(exec) : 0, sourceURL, lineNumber), headNode: m_head.get(), parentNode: m_head.get()); |
67 | m_head->insertNode(prpNode: m_currentNode.get()); |
68 | } |
69 | |
70 | const UString& ProfileGenerator::title() const |
71 | { |
72 | return m_profile->title(); |
73 | } |
74 | |
75 | void ProfileGenerator::willExecute(const CallIdentifier& callIdentifier) |
76 | { |
77 | if (JAVASCRIPTCORE_PROFILE_WILL_EXECUTE_ENABLED()) { |
78 | CString name = callIdentifier.m_name.UTF8String(); |
79 | CString url = callIdentifier.m_url.UTF8String(); |
80 | JAVASCRIPTCORE_PROFILE_WILL_EXECUTE(m_profileGroup, const_cast<char*>(name.c_str()), const_cast<char*>(url.c_str()), callIdentifier.m_lineNumber); |
81 | } |
82 | |
83 | if (!m_originatingGlobalExec) |
84 | return; |
85 | |
86 | ASSERT_ARG(m_currentNode, m_currentNode); |
87 | m_currentNode = m_currentNode->willExecute(callIdentifier); |
88 | } |
89 | |
90 | void ProfileGenerator::didExecute(const CallIdentifier& callIdentifier) |
91 | { |
92 | if (JAVASCRIPTCORE_PROFILE_DID_EXECUTE_ENABLED()) { |
93 | CString name = callIdentifier.m_name.UTF8String(); |
94 | CString url = callIdentifier.m_url.UTF8String(); |
95 | JAVASCRIPTCORE_PROFILE_DID_EXECUTE(m_profileGroup, const_cast<char*>(name.c_str()), const_cast<char*>(url.c_str()), callIdentifier.m_lineNumber); |
96 | } |
97 | |
98 | if (!m_originatingGlobalExec) |
99 | return; |
100 | |
101 | ASSERT_ARG(m_currentNode, m_currentNode); |
102 | if (m_currentNode->callIdentifier() != callIdentifier) { |
103 | RefPtr<ProfileNode> returningNode = ProfileNode::create(callIdentifier, headNode: m_head.get(), parentNode: m_currentNode.get()); |
104 | returningNode->setStartTime(m_currentNode->startTime()); |
105 | returningNode->didExecute(); |
106 | m_currentNode->insertNode(prpNode: returningNode.release()); |
107 | return; |
108 | } |
109 | |
110 | m_currentNode = m_currentNode->didExecute(); |
111 | } |
112 | |
113 | void ProfileGenerator::stopProfiling() |
114 | { |
115 | m_profile->forEach(&ProfileNode::stopProfiling); |
116 | |
117 | removeProfileStart(); |
118 | removeProfileEnd(); |
119 | |
120 | ASSERT_ARG(m_currentNode, m_currentNode); |
121 | |
122 | // Set the current node to the parent, because we are in a call that |
123 | // will not get didExecute call. |
124 | m_currentNode = m_currentNode->parent(); |
125 | |
126 | if (double headSelfTime = m_head->selfTime()) { |
127 | RefPtr<ProfileNode> idleNode = ProfileNode::create(callIdentifier: CallIdentifier(NonJSExecution, 0, 0), headNode: m_head.get(), parentNode: m_head.get()); |
128 | |
129 | idleNode->setTotalTime(headSelfTime); |
130 | idleNode->setSelfTime(headSelfTime); |
131 | idleNode->setVisible(true); |
132 | |
133 | m_head->setSelfTime(0.0); |
134 | m_head->addChild(prpChild: idleNode.release()); |
135 | } |
136 | } |
137 | |
138 | // The console.ProfileGenerator that started this ProfileGenerator will be the first child. |
139 | void ProfileGenerator::removeProfileStart() |
140 | { |
141 | ProfileNode* currentNode = 0; |
142 | for (ProfileNode* next = m_head.get(); next; next = next->firstChild()) |
143 | currentNode = next; |
144 | |
145 | if (currentNode->callIdentifier().m_name != "profile" ) |
146 | return; |
147 | |
148 | // Attribute the time of the node aobut to be removed to the self time of its parent |
149 | currentNode->parent()->setSelfTime(currentNode->parent()->selfTime() + currentNode->totalTime()); |
150 | currentNode->parent()->removeChild(currentNode); |
151 | } |
152 | |
153 | // The console.ProfileGeneratorEnd that stopped this ProfileGenerator will be the last child. |
154 | void ProfileGenerator::removeProfileEnd() |
155 | { |
156 | ProfileNode* currentNode = 0; |
157 | for (ProfileNode* next = m_head.get(); next; next = next->lastChild()) |
158 | currentNode = next; |
159 | |
160 | if (currentNode->callIdentifier().m_name != "profileEnd" ) |
161 | return; |
162 | |
163 | // Attribute the time of the node aobut to be removed to the self time of its parent |
164 | currentNode->parent()->setSelfTime(currentNode->parent()->selfTime() + currentNode->totalTime()); |
165 | |
166 | ASSERT(currentNode->callIdentifier() == (currentNode->parent()->children()[currentNode->parent()->children().size() - 1])->callIdentifier()); |
167 | currentNode->parent()->removeChild(currentNode); |
168 | } |
169 | |
170 | } // namespace JSC |
171 | |