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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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99 */ | 99 */ |
100 class V8_EXPORT CpuProfile { | 100 class V8_EXPORT CpuProfile { |
101 public: | 101 public: |
102 /** Returns CPU profile title. */ | 102 /** Returns CPU profile title. */ |
103 Handle<String> GetTitle() const; | 103 Handle<String> GetTitle() const; |
104 | 104 |
105 /** Returns the root node of the top down call tree. */ | 105 /** Returns the root node of the top down call tree. */ |
106 const CpuProfileNode* GetTopDownRoot() const; | 106 const CpuProfileNode* GetTopDownRoot() const; |
107 | 107 |
108 /** | 108 /** |
109 * Returns number of samples recorded. The samples are not recorded unless | 109 * Returns number of samples recorded. The samples are not recorded unless |
110 * |record_samples| parameter of CpuProfiler::StartCpuProfiling is true. | 110 * |record_samples| parameter of CpuProfiler::StartCpuProfiling is true. |
111 */ | 111 */ |
112 int GetSamplesCount() const; | 112 int GetSamplesCount() const; |
113 | 113 |
114 /** | 114 /** |
115 * Returns profile node corresponding to the top frame the sample at | 115 * Returns profile node corresponding to the top frame the sample at |
116 * the given index. | 116 * the given index. |
117 */ | 117 */ |
118 const CpuProfileNode* GetSample(int index) const; | 118 const CpuProfileNode* GetSample(int index) const; |
119 | 119 |
120 /** | 120 /** |
121 * Returns time when the profile recording was started (in microseconds) | 121 * Returns the timestamp of the sample. The timestamp is the number of |
122 * since some unspecified starting point. | 122 * microseconds since some unspecified starting point. |
123 */ | 123 * The point is equal to the starting point used by GetStartTime. |
| 124 */ |
| 125 int64_t GetSampleTimestamp(int index) const; |
| 126 |
| 127 /** |
| 128 * Returns time when the profile recording was started (in microseconds) |
| 129 * since some unspecified starting point. |
| 130 */ |
124 int64_t GetStartTime() const; | 131 int64_t GetStartTime() const; |
125 | 132 |
126 /** | 133 /** |
127 * Returns time when the profile recording was stopped (in microseconds) | 134 * Returns time when the profile recording was stopped (in microseconds) |
128 * since some unspecified starting point. The point is however equal to the | 135 * since some unspecified starting point. |
129 * starting point used by GetStartTime. | 136 * The point is equal to the starting point used by GetStartTime. |
130 */ | 137 */ |
131 int64_t GetEndTime() const; | 138 int64_t GetEndTime() const; |
132 | 139 |
133 /** | 140 /** |
134 * Deletes the profile and removes it from CpuProfiler's list. | 141 * Deletes the profile and removes it from CpuProfiler's list. |
135 * All pointers to nodes previously returned become invalid. | 142 * All pointers to nodes previously returned become invalid. |
136 */ | 143 */ |
137 void Delete(); | 144 void Delete(); |
138 }; | 145 }; |
139 | 146 |
140 | 147 |
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617 uint32_t index; // Index of the time interval that was changed. | 624 uint32_t index; // Index of the time interval that was changed. |
618 uint32_t count; // New value of count field for the interval with this index. | 625 uint32_t count; // New value of count field for the interval with this index. |
619 uint32_t size; // New value of size field for the interval with this index. | 626 uint32_t size; // New value of size field for the interval with this index. |
620 }; | 627 }; |
621 | 628 |
622 | 629 |
623 } // namespace v8 | 630 } // namespace v8 |
624 | 631 |
625 | 632 |
626 #endif // V8_V8_PROFILER_H_ | 633 #endif // V8_V8_PROFILER_H_ |
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