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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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39 namespace v8 { | 39 namespace v8 { |
40 namespace internal { | 40 namespace internal { |
41 | 41 |
42 static const int kEventsBufferSize = 256*KB; | 42 static const int kEventsBufferSize = 256*KB; |
43 static const int kTickSamplesBufferChunkSize = 64*KB; | 43 static const int kTickSamplesBufferChunkSize = 64*KB; |
44 static const int kTickSamplesBufferChunksCount = 16; | 44 static const int kTickSamplesBufferChunksCount = 16; |
45 | 45 |
46 | 46 |
47 ProfilerEventsProcessor::ProfilerEventsProcessor(ProfileGenerator* generator) | 47 ProfilerEventsProcessor::ProfilerEventsProcessor(ProfileGenerator* generator) |
48 : generator_(generator), | 48 : generator_(generator), |
49 running_(false), | 49 running_(true), |
50 ticks_buffer_(sizeof(TickSampleEventRecord), | 50 ticks_buffer_(sizeof(TickSampleEventRecord), |
51 kTickSamplesBufferChunkSize, | 51 kTickSamplesBufferChunkSize, |
52 kTickSamplesBufferChunksCount), | 52 kTickSamplesBufferChunksCount), |
53 enqueue_order_(0) { | 53 enqueue_order_(0) { |
54 } | 54 } |
55 | 55 |
56 | 56 |
57 void ProfilerEventsProcessor::CallbackCreateEvent(Logger::LogEventsAndTags tag, | 57 void ProfilerEventsProcessor::CallbackCreateEvent(Logger::LogEventsAndTags tag, |
58 const char* prefix, | 58 const char* prefix, |
59 String* name, | 59 String* name, |
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240 ticks_buffer_.FinishDequeue(); | 240 ticks_buffer_.FinishDequeue(); |
241 } else { | 241 } else { |
242 return true; | 242 return true; |
243 } | 243 } |
244 } | 244 } |
245 } | 245 } |
246 | 246 |
247 | 247 |
248 void ProfilerEventsProcessor::Run() { | 248 void ProfilerEventsProcessor::Run() { |
249 unsigned dequeue_order = 0; | 249 unsigned dequeue_order = 0; |
250 running_ = true; | |
251 | 250 |
252 while (running_) { | 251 while (running_) { |
253 // Process ticks until we have any. | 252 // Process ticks until we have any. |
254 if (ProcessTicks(dequeue_order)) { | 253 if (ProcessTicks(dequeue_order)) { |
255 // All ticks of the current dequeue_order are processed, | 254 // All ticks of the current dequeue_order are processed, |
256 // proceed to the next code event. | 255 // proceed to the next code event. |
257 ProcessCodeEvent(&dequeue_order); | 256 ProcessCodeEvent(&dequeue_order); |
258 } | 257 } |
259 YieldCPU(); | 258 YieldCPU(); |
260 } | 259 } |
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530 void CpuProfiler::TearDown() { | 529 void CpuProfiler::TearDown() { |
531 #ifdef ENABLE_LOGGING_AND_PROFILING | 530 #ifdef ENABLE_LOGGING_AND_PROFILING |
532 if (singleton_ != NULL) { | 531 if (singleton_ != NULL) { |
533 delete singleton_; | 532 delete singleton_; |
534 } | 533 } |
535 singleton_ = NULL; | 534 singleton_ = NULL; |
536 #endif | 535 #endif |
537 } | 536 } |
538 | 537 |
539 } } // namespace v8::internal | 538 } } // namespace v8::internal |
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