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Side by Side Diff: base/trace_event/trace_buffer.h

Issue 1678503002: Tracing: Removed monitoring mode (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_TRACE_EVENT_TRACE_BUFFER_H_ 5 #ifndef BASE_TRACE_EVENT_TRACE_BUFFER_H_
6 #define BASE_TRACE_EVENT_TRACE_BUFFER_H_ 6 #define BASE_TRACE_EVENT_TRACE_BUFFER_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
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32 32
33 TraceEvent* GetEventAt(size_t index) { 33 TraceEvent* GetEventAt(size_t index) {
34 DCHECK(index < size()); 34 DCHECK(index < size());
35 return &chunk_[index]; 35 return &chunk_[index];
36 } 36 }
37 const TraceEvent* GetEventAt(size_t index) const { 37 const TraceEvent* GetEventAt(size_t index) const {
38 DCHECK(index < size()); 38 DCHECK(index < size());
39 return &chunk_[index]; 39 return &chunk_[index];
40 } 40 }
41 41
42 scoped_ptr<TraceBufferChunk> Clone() const;
43
44 void EstimateTraceMemoryOverhead(TraceEventMemoryOverhead* overhead); 42 void EstimateTraceMemoryOverhead(TraceEventMemoryOverhead* overhead);
45 43
46 // These values must be kept consistent with the numbers of bits of 44 // These values must be kept consistent with the numbers of bits of
47 // chunk_index and event_index fields in TraceEventHandle 45 // chunk_index and event_index fields in TraceEventHandle
48 // (in trace_event_impl.h). 46 // (in trace_event_impl.h).
49 static const size_t kMaxChunkIndex = (1u << 26) - 1; 47 static const size_t kMaxChunkIndex = (1u << 26) - 1;
50 static const size_t kTraceBufferChunkSize = 64; 48 static const size_t kTraceBufferChunkSize = 64;
51 49
52 private: 50 private:
53 size_t next_free_; 51 size_t next_free_;
(...skipping 12 matching lines...) Expand all
66 scoped_ptr<TraceBufferChunk> chunk) = 0; 64 scoped_ptr<TraceBufferChunk> chunk) = 0;
67 65
68 virtual bool IsFull() const = 0; 66 virtual bool IsFull() const = 0;
69 virtual size_t Size() const = 0; 67 virtual size_t Size() const = 0;
70 virtual size_t Capacity() const = 0; 68 virtual size_t Capacity() const = 0;
71 virtual TraceEvent* GetEventByHandle(TraceEventHandle handle) = 0; 69 virtual TraceEvent* GetEventByHandle(TraceEventHandle handle) = 0;
72 70
73 // For iteration. Each TraceBuffer can only be iterated once. 71 // For iteration. Each TraceBuffer can only be iterated once.
74 virtual const TraceBufferChunk* NextChunk() = 0; 72 virtual const TraceBufferChunk* NextChunk() = 0;
75 73
76 virtual scoped_ptr<TraceBuffer> CloneForIteration() const = 0;
77 74
78 // Computes an estimate of the size of the buffer, including all the retained 75 // Computes an estimate of the size of the buffer, including all the retained
79 // objects. 76 // objects.
80 virtual void EstimateTraceMemoryOverhead( 77 virtual void EstimateTraceMemoryOverhead(
81 TraceEventMemoryOverhead* overhead) = 0; 78 TraceEventMemoryOverhead* overhead) = 0;
82 79
83 static TraceBuffer* CreateTraceBufferRingBuffer(size_t max_chunks); 80 static TraceBuffer* CreateTraceBufferRingBuffer(size_t max_chunks);
84 static TraceBuffer* CreateTraceBufferVectorOfSize(size_t max_chunks); 81 static TraceBuffer* CreateTraceBufferVectorOfSize(size_t max_chunks);
85 }; 82 };
86 83
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124 121
125 private: 122 private:
126 OutputCallback output_callback_; 123 OutputCallback output_callback_;
127 bool append_comma_; 124 bool append_comma_;
128 }; 125 };
129 126
130 } // namespace trace_event 127 } // namespace trace_event
131 } // namespace base 128 } // namespace base
132 129
133 #endif // BASE_TRACE_EVENT_TRACE_BUFFER_H_ 130 #endif // BASE_TRACE_EVENT_TRACE_BUFFER_H_
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