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Side by Side Diff: src/cpu-profiler.cc

Issue 3197010: Version 2.3.10... (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 10 years, 4 months ago
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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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