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Issue 100102: Rename profileview.js -> profile_view.js because WebInspector already has ProfileView.js. (Closed)
Patch Set: Created 11 years, 7 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28
29 // Initlialize namespaces
30 var devtools = devtools || {};
31 devtools.profiler = devtools.profiler || {};
32
33
34 /**
35 * Creates a Profile View builder object.
36 *
37 * @param {number} samplingRate Number of ms between profiler ticks.
38 * @constructor
39 */
40 devtools.profiler.ViewBuilder = function(samplingRate) {
41 this.samplingRate = samplingRate;
42 };
43
44
45 /**
46 * Builds a profile view for the specified call tree.
47 *
48 * @param {devtools.profiler.CallTree} callTree A call tree.
49 */
50 devtools.profiler.ViewBuilder.prototype.buildView = function(
51 callTree) {
52 var head;
53 var samplingRate = this.samplingRate;
54 callTree.traverse(function(node, viewParent) {
55 var viewNode = new devtools.profiler.ProfileView.Node(
56 node.label, node.totalWeight * samplingRate,
57 node.selfWeight * samplingRate, head);
58 if (viewParent) {
59 viewParent.addChild(viewNode);
60 } else {
61 head = viewNode;
62 }
63 return viewNode;
64 });
65 var view = new devtools.profiler.ProfileView(head);
66 return view;
67 };
68
69
70 /**
71 * Creates a Profile View object. It allows to perform sorting
72 * and filtering actions on the profile. Profile View mimicks
73 * the Profile object from WebKit's JSC profiler.
74 *
75 * @param {devtools.profiler.ProfileView.Node} head Head (root) node.
76 * @constructor
77 */
78 devtools.profiler.ProfileView = function(head) {
79 this.head = head;
80 };
81
82
83 /**
84 * Sorts the profile view using the specified sort function.
85 *
86 * @param {function(devtools.profiler.ProfileView.Node,
87 * devtools.profiler.ProfileView.Node):number} sortFunc A sorting
88 * functions. Must comply with Array.sort sorting function requirements.
89 */
90 devtools.profiler.ProfileView.prototype.sort = function(sortFunc) {
91 this.traverse(function (node) {
92 node.sortChildren(sortFunc);
93 });
94 };
95
96
97 /**
98 * Traverses profile view nodes in preorder.
99 *
100 * @param {function(devtools.profiler.ProfileView.Node)} f Visitor function.
101 */
102 devtools.profiler.ProfileView.prototype.traverse = function(f) {
103 var nodesToTraverse = new ConsArray();
104 nodesToTraverse.concat([this.head]);
105 while (!nodesToTraverse.atEnd()) {
106 var node = nodesToTraverse.next();
107 f(node);
108 nodesToTraverse.concat(node.children);
109 }
110 };
111
112
113 /**
114 * Constructs a Profile View node object. Each node object corresponds to
115 * a function call.
116 *
117 * @param {string} internalFuncName A fully qualified function name.
118 * @param {number} totalTime Amount of time that application spent in the
119 * corresponding function and its descendants (not that depending on
120 * profile they can be either callees or callers.)
121 * @param {number} selfTime Amount of time that application spent in the
122 * corresponding function only.
123 * @param {devtools.profiler.ProfileView.Node} head Profile view head.
124 * @constructor
125 */
126 devtools.profiler.ProfileView.Node = function(
127 internalFuncName, totalTime, selfTime, head) {
128 this.internalFuncName = internalFuncName;
129 this.totalTime = totalTime;
130 this.selfTime = selfTime;
131 this.head = head;
132 this.parent = null;
133 this.children = [];
134 };
135
136
137 /**
138 * Returns a share of the function's total time in application's total time.
139 */
140 devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
141 'totalPercent',
142 function() { return this.totalTime /
143 (this.head ? this.head.totalTime : this.totalTime) * 100.0; });
144
145
146 /**
147 * Returns a share of the function's self time in application's total time.
148 */
149 devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
150 'selfPercent',
151 function() { return this.selfTime /
152 (this.head ? this.head.totalTime : this.totalTime) * 100.0; });
153
154
155 /**
156 * Returns a share of the function's total time in its parent's total time.
157 */
158 devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
159 'parentTotalPercent',
160 function() { return this.totalTime /
161 (this.parent ? this.parent.totalTime : this.totalTime) * 100.0; });
162
163
164 /**
165 * Adds a child to the node.
166 *
167 * @param {devtools.profiler.ProfileView.Node} node Child node.
168 */
169 devtools.profiler.ProfileView.Node.prototype.addChild = function(node) {
170 node.parent = this;
171 this.children.push(node);
172 };
173
174
175 /**
176 * Sorts all the node's children recursively.
177 *
178 * @param {function(devtools.profiler.ProfileView.Node,
179 * devtools.profiler.ProfileView.Node):number} sortFunc A sorting
180 * functions. Must comply with Array.sort sorting function requirements.
181 */
182 devtools.profiler.ProfileView.Node.prototype.sortChildren = function(
183 sortFunc) {
184 this.children.sort(sortFunc);
185 };
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