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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ | 5 #ifndef COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ |
6 #define COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ | 6 #define COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
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52 const base::WeakPtr<TrackingSynchronizerObserver>& callback_object); | 52 const base::WeakPtr<TrackingSynchronizerObserver>& callback_object); |
53 | 53 |
54 // ------------------------------------------------------ | 54 // ------------------------------------------------------ |
55 // ProfilerSubscriber methods for browser child processes | 55 // ProfilerSubscriber methods for browser child processes |
56 // ------------------------------------------------------ | 56 // ------------------------------------------------------ |
57 | 57 |
58 // Update the number of pending processes for the given |sequence_number|. | 58 // Update the number of pending processes for the given |sequence_number|. |
59 // This is called on UI thread. | 59 // This is called on UI thread. |
60 virtual void OnPendingProcesses(int sequence_number, | 60 virtual void OnPendingProcesses(int sequence_number, |
61 int pending_processes, | 61 int pending_processes, |
62 bool end) OVERRIDE; | 62 bool end) override; |
63 | 63 |
64 private: | 64 private: |
65 friend class base::RefCountedThreadSafe<TrackingSynchronizer>; | 65 friend class base::RefCountedThreadSafe<TrackingSynchronizer>; |
66 | 66 |
67 class RequestContext; | 67 class RequestContext; |
68 | 68 |
69 virtual ~TrackingSynchronizer(); | 69 virtual ~TrackingSynchronizer(); |
70 | 70 |
71 // Send profiler_data back to callback_object_ by calling | 71 // Send profiler_data back to callback_object_ by calling |
72 // DecrementPendingProcessesAndSendData which records that we are waiting | 72 // DecrementPendingProcessesAndSendData which records that we are waiting |
73 // for one less profiler data from renderer or browser child process for the | 73 // for one less profiler data from renderer or browser child process for the |
74 // given sequence number. This method is accessible on UI thread. | 74 // given sequence number. This method is accessible on UI thread. |
75 virtual void OnProfilerDataCollected( | 75 virtual void OnProfilerDataCollected( |
76 int sequence_number, | 76 int sequence_number, |
77 const tracked_objects::ProcessDataSnapshot& profiler_data, | 77 const tracked_objects::ProcessDataSnapshot& profiler_data, |
78 int process_type) OVERRIDE; | 78 int process_type) override; |
79 | 79 |
80 // Establish a new sequence_number_, and use it to notify all the processes of | 80 // Establish a new sequence_number_, and use it to notify all the processes of |
81 // the need to supply, to the browser, their tracking data. It also registers | 81 // the need to supply, to the browser, their tracking data. It also registers |
82 // |callback_object| in |outstanding_requests_| map. Return the | 82 // |callback_object| in |outstanding_requests_| map. Return the |
83 // sequence_number_ that was used. This method is accessible on UI thread. | 83 // sequence_number_ that was used. This method is accessible on UI thread. |
84 int RegisterAndNotifyAllProcesses( | 84 int RegisterAndNotifyAllProcesses( |
85 const base::WeakPtr<TrackingSynchronizerObserver>& callback_object); | 85 const base::WeakPtr<TrackingSynchronizerObserver>& callback_object); |
86 | 86 |
87 // It finds the RequestContext for the given |sequence_number| and notifies | 87 // It finds the RequestContext for the given |sequence_number| and notifies |
88 // the RequestContext's |callback_object_| about the |value|. This is called | 88 // the RequestContext's |callback_object_| about the |value|. This is called |
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108 // last_used_sequence_number_ is the most recently used number (used to avoid | 108 // last_used_sequence_number_ is the most recently used number (used to avoid |
109 // reuse for a long time). | 109 // reuse for a long time). |
110 int last_used_sequence_number_; | 110 int last_used_sequence_number_; |
111 | 111 |
112 DISALLOW_COPY_AND_ASSIGN(TrackingSynchronizer); | 112 DISALLOW_COPY_AND_ASSIGN(TrackingSynchronizer); |
113 }; | 113 }; |
114 | 114 |
115 } // namespace metrics | 115 } // namespace metrics |
116 | 116 |
117 #endif // COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ | 117 #endif // COMPONENTS_METRICS_PROFILER_TRACKING_SYNCHRONIZER_H_ |
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