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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_PROFILER_H_ | 5 #ifndef VM_PROFILER_H_ |
6 #define VM_PROFILER_H_ | 6 #define VM_PROFILER_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/bitfield.h" | 9 #include "vm/bitfield.h" |
10 #include "vm/code_observers.h" | 10 #include "vm/code_observers.h" |
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47 // * Accessing TLS -- Because on Windows the callback will be running in a | 47 // * Accessing TLS -- Because on Windows the callback will be running in a |
48 // different thread. | 48 // different thread. |
49 // * Allocating memory -- Because this takes locks which may already be | 49 // * Allocating memory -- Because this takes locks which may already be |
50 // held, resulting in a dead lock. | 50 // held, resulting in a dead lock. |
51 // * Taking a lock -- See above. | 51 // * Taking a lock -- See above. |
52 static void SampleThread(Thread* thread, | 52 static void SampleThread(Thread* thread, |
53 const InterruptedThreadState& state); | 53 const InterruptedThreadState& state); |
54 | 54 |
55 private: | 55 private: |
56 static bool initialized_; | 56 static bool initialized_; |
57 static Monitor* monitor_; | |
58 | 57 |
59 static SampleBuffer* sample_buffer_; | 58 static SampleBuffer* sample_buffer_; |
60 | 59 |
61 friend class Thread; | 60 friend class Thread; |
62 }; | 61 }; |
63 | 62 |
64 | 63 |
65 class SampleVisitor : public ValueObject { | 64 class SampleVisitor : public ValueObject { |
66 public: | 65 public: |
67 explicit SampleVisitor(Isolate* isolate) : isolate_(isolate), visited_(0) { } | 66 explicit SampleVisitor(Isolate* isolate) : isolate_(isolate), visited_(0) { } |
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634 private: | 633 private: |
635 ZoneGrowableArray<ProcessedSample*> samples_; | 634 ZoneGrowableArray<ProcessedSample*> samples_; |
636 CodeLookupTable* code_lookup_table_; | 635 CodeLookupTable* code_lookup_table_; |
637 | 636 |
638 DISALLOW_COPY_AND_ASSIGN(ProcessedSampleBuffer); | 637 DISALLOW_COPY_AND_ASSIGN(ProcessedSampleBuffer); |
639 }; | 638 }; |
640 | 639 |
641 } // namespace dart | 640 } // namespace dart |
642 | 641 |
643 #endif // VM_PROFILER_H_ | 642 #endif // VM_PROFILER_H_ |
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