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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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300 TickSample sample; | 300 TickSample sample; |
301 // Reset 'paused_' flag, otherwise semaphore may not be signalled. | 301 // Reset 'paused_' flag, otherwise semaphore may not be signalled. |
302 resume(); | 302 resume(); |
303 Insert(&sample); | 303 Insert(&sample); |
304 Join(); | 304 Join(); |
305 | 305 |
306 LOG(UncheckedStringEvent("profiler", "end")); | 306 LOG(UncheckedStringEvent("profiler", "end")); |
307 } | 307 } |
308 | 308 |
309 | 309 |
310 void Profiler::Run() { | 310 void Profiler::Run() { |
zarko
2010/06/24 23:13:21
Would it be helpful to ASSERT(Logger::profiler_ ==
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311 TickSample sample; | 311 TickSample sample; |
312 bool overflow = Logger::profiler_->Remove(&sample); | 312 bool overflow = Remove(&sample); |
313 while (running_) { | 313 while (running_) { |
314 LOG(TickEvent(&sample, overflow)); | 314 LOG(TickEvent(&sample, overflow)); |
315 overflow = Logger::profiler_->Remove(&sample); | 315 overflow = Remove(&sample); |
316 } | 316 } |
317 } | 317 } |
318 | 318 |
319 | 319 |
320 // | 320 // |
321 // Logger class implementation. | 321 // Logger class implementation. |
322 // | 322 // |
323 Ticker* Logger::ticker_ = NULL; | 323 Ticker* Logger::ticker_ = NULL; |
324 Profiler* Logger::profiler_ = NULL; | 324 Profiler* Logger::profiler_ = NULL; |
325 SlidingStateWindow* Logger::sliding_state_window_ = NULL; | 325 SlidingStateWindow* Logger::sliding_state_window_ = NULL; |
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1143 ASSERT(compression_helper_ != NULL); | 1143 ASSERT(compression_helper_ != NULL); |
1144 if (!compression_helper_->HandleMessage(&msg)) return; | 1144 if (!compression_helper_->HandleMessage(&msg)) return; |
1145 } | 1145 } |
1146 msg.Append('\n'); | 1146 msg.Append('\n'); |
1147 msg.WriteToLogFile(); | 1147 msg.WriteToLogFile(); |
1148 } | 1148 } |
1149 | 1149 |
1150 | 1150 |
1151 int Logger::GetActiveProfilerModules() { | 1151 int Logger::GetActiveProfilerModules() { |
1152 int result = PROFILER_MODULE_NONE; | 1152 int result = PROFILER_MODULE_NONE; |
1153 if (!profiler_->paused()) { | 1153 if (profiler_ != NULL && !profiler_->paused()) { |
1154 result |= PROFILER_MODULE_CPU; | 1154 result |= PROFILER_MODULE_CPU; |
1155 } | 1155 } |
1156 if (FLAG_log_gc) { | 1156 if (FLAG_log_gc) { |
1157 result |= PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS; | 1157 result |= PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS; |
1158 } | 1158 } |
1159 return result; | 1159 return result; |
1160 } | 1160 } |
1161 | 1161 |
1162 | 1162 |
1163 void Logger::PauseProfiler(int flags, int tag) { | 1163 void Logger::PauseProfiler(int flags, int tag) { |
1164 if (!Log::IsEnabled()) return; | 1164 if (!Log::IsEnabled()) return; |
1165 if (flags & PROFILER_MODULE_CPU) { | 1165 if (profiler_ != NULL && (flags & PROFILER_MODULE_CPU)) { |
1166 // It is OK to have negative nesting. | 1166 // It is OK to have negative nesting. |
1167 if (--cpu_profiler_nesting_ == 0) { | 1167 if (--cpu_profiler_nesting_ == 0) { |
1168 profiler_->pause(); | 1168 profiler_->pause(); |
1169 if (FLAG_prof_lazy) { | 1169 if (FLAG_prof_lazy) { |
1170 if (!FLAG_sliding_state_window) ticker_->Stop(); | 1170 if (!FLAG_sliding_state_window) ticker_->Stop(); |
1171 FLAG_log_code = false; | 1171 FLAG_log_code = false; |
1172 // Must be the same message as Log::kDynamicBufferSeal. | 1172 // Must be the same message as Log::kDynamicBufferSeal. |
1173 LOG(UncheckedStringEvent("profiler", "pause")); | 1173 LOG(UncheckedStringEvent("profiler", "pause")); |
1174 } | 1174 } |
1175 --logging_nesting_; | 1175 --logging_nesting_; |
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1186 UncheckedIntEvent("close-tag", tag); | 1186 UncheckedIntEvent("close-tag", tag); |
1187 } | 1187 } |
1188 } | 1188 } |
1189 | 1189 |
1190 | 1190 |
1191 void Logger::ResumeProfiler(int flags, int tag) { | 1191 void Logger::ResumeProfiler(int flags, int tag) { |
1192 if (!Log::IsEnabled()) return; | 1192 if (!Log::IsEnabled()) return; |
1193 if (tag != 0) { | 1193 if (tag != 0) { |
1194 UncheckedIntEvent("open-tag", tag); | 1194 UncheckedIntEvent("open-tag", tag); |
1195 } | 1195 } |
1196 if (flags & PROFILER_MODULE_CPU) { | 1196 if (profiler_ != NULL && (flags & PROFILER_MODULE_CPU)) { |
1197 if (cpu_profiler_nesting_++ == 0) { | 1197 if (cpu_profiler_nesting_++ == 0) { |
1198 ++logging_nesting_; | 1198 ++logging_nesting_; |
1199 if (FLAG_prof_lazy) { | 1199 if (FLAG_prof_lazy) { |
1200 profiler_->Engage(); | 1200 profiler_->Engage(); |
1201 LOG(UncheckedStringEvent("profiler", "resume")); | 1201 LOG(UncheckedStringEvent("profiler", "resume")); |
1202 FLAG_log_code = true; | 1202 FLAG_log_code = true; |
1203 LogCompiledFunctions(); | 1203 LogCompiledFunctions(); |
1204 LogFunctionObjects(); | 1204 LogFunctionObjects(); |
1205 LogAccessorCallbacks(); | 1205 LogAccessorCallbacks(); |
1206 if (!FLAG_sliding_state_window) ticker_->Start(); | 1206 if (!FLAG_sliding_state_window) ticker_->Start(); |
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1552 } | 1552 } |
1553 // Otherwise, if the sliding state window computation has not been | 1553 // Otherwise, if the sliding state window computation has not been |
1554 // started we do it now. | 1554 // started we do it now. |
1555 if (sliding_state_window_ == NULL) { | 1555 if (sliding_state_window_ == NULL) { |
1556 sliding_state_window_ = new SlidingStateWindow(); | 1556 sliding_state_window_ = new SlidingStateWindow(); |
1557 } | 1557 } |
1558 #endif | 1558 #endif |
1559 } | 1559 } |
1560 | 1560 |
1561 } } // namespace v8::internal | 1561 } } // namespace v8::internal |
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