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Side by Side Diff: content/browser/trace_controller.h

Issue 7800015: prune down content_dll change to just the CONTENT_EXPORTS (Closed)
Patch Set: fix exports for switches, content_main Created 9 years, 3 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 CONTENT_BROWSER_TRACE_CONTROLLER_H_ 5 #ifndef CONTENT_BROWSER_TRACE_CONTROLLER_H_
6 #define CONTENT_BROWSER_TRACE_CONTROLLER_H_ 6 #define CONTENT_BROWSER_TRACE_CONTROLLER_H_
7 7
8 #include <set> 8 #include <set>
9 #include <string> 9 #include <string>
10 10
11 #include "content/common/content_export.h"
darin (slow to review) 2011/09/04 15:41:04 nit: "base" before "content"
Dirk Pranke 2011/09/07 01:46:07 Done.
11 #include "base/debug/trace_event.h" 12 #include "base/debug/trace_event.h"
12 #include "base/memory/ref_counted.h" 13 #include "base/memory/ref_counted.h"
13 #include "base/memory/singleton.h" 14 #include "base/memory/singleton.h"
14 #include "base/task.h" 15 #include "base/task.h"
15 16
16 class TraceMessageFilter; 17 class TraceMessageFilter;
17 18
18 // Objects interested in receiving trace data derive from TraceSubscriber. 19 // Objects interested in receiving trace data derive from TraceSubscriber.
19 // See also: trace_message_filter.h 20 // See also: trace_message_filter.h
20 // See also: child_trace_message_filter.h 21 // See also: child_trace_message_filter.h
21 class TraceSubscriber { 22 class TraceSubscriber {
22 public: 23 public:
23 virtual void OnEndTracingComplete() = 0; 24 virtual void OnEndTracingComplete() = 0;
24 virtual void OnTraceDataCollected(const std::string& json_events) = 0; 25 virtual void OnTraceDataCollected(const std::string& json_events) = 0;
25 virtual void OnTraceBufferPercentFullReply(float percent_full) {} 26 virtual void OnTraceBufferPercentFullReply(float percent_full) {}
26 }; 27 };
27 28
28 // TraceController is used on the browser processes to enable/disable 29 // TraceController is used on the browser processes to enable/disable
29 // trace status and collect trace data. Only the browser UI thread is allowed 30 // trace status and collect trace data. Only the browser UI thread is allowed
30 // to interact with the TraceController object. All calls on the TraceSubscriber 31 // to interact with the TraceController object. All calls on the TraceSubscriber
31 // happen on the UI thread. 32 // happen on the UI thread.
32 class TraceController { 33 class CONTENT_EXPORT TraceController {
33 public: 34 public:
34 static TraceController* GetInstance(); 35 static TraceController* GetInstance();
35 36
36 // Called by browser process to start tracing events on all processes. 37 // Called by browser process to start tracing events on all processes.
37 // 38 //
38 // Currently only one subscriber is allowed at a time. 39 // Currently only one subscriber is allowed at a time.
39 // Tracing begins immediately locally, and asynchronously on child processes 40 // Tracing begins immediately locally, and asynchronously on child processes
40 // as soon as they receive the BeginTracing request. 41 // as soon as they receive the BeginTracing request.
41 // 42 //
42 // If BeginTracing was already called previously, 43 // If BeginTracing was already called previously,
(...skipping 83 matching lines...) Expand 10 before | Expand all | Expand 10 after
126 float maximum_bpf_; 127 float maximum_bpf_;
127 bool is_tracing_; 128 bool is_tracing_;
128 129
129 DISALLOW_COPY_AND_ASSIGN(TraceController); 130 DISALLOW_COPY_AND_ASSIGN(TraceController);
130 }; 131 };
131 132
132 DISABLE_RUNNABLE_METHOD_REFCOUNT(TraceController); 133 DISABLE_RUNNABLE_METHOD_REFCOUNT(TraceController);
133 134
134 #endif // CONTENT_BROWSER_TRACE_CONTROLLER_H_ 135 #endif // CONTENT_BROWSER_TRACE_CONTROLLER_H_
135 136
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