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Side by Side Diff: content/browser/tracing/trace_subscriber_stdio.h

Issue 67683003: Remove TraceController (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years ago
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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
3 // found in the LICENSE file.
4
5 #ifndef CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
6 #define CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
7
8 #include <string>
9
10 #include "base/compiler_specific.h"
11 #include "content/public/browser/trace_subscriber.h"
12 #include "content/common/content_export.h"
13
14 namespace base {
15 class FilePath;
16 }
17
18 namespace content {
19
20 // Stdio implementation of TraceSubscriber. Use this to write traces to a file.
21 class CONTENT_EXPORT TraceSubscriberStdio
22 : NON_EXPORTED_BASE(public TraceSubscriber) {
23 public:
24 enum FileType {
25 // Output file as array, representing trace events:
26 // [event1, event2, ...]
27 FILE_TYPE_ARRAY,
28 // Output file as property list with one or two items:
29 // {traceEvents: [event1, event2, ...],
30 // systemTraceEvents: "event1\nevent2\n..." // optional}
31 FILE_TYPE_PROPERTY_LIST
32 };
33
34 // has_system_trace indicates whether system trace events are expected.
35 TraceSubscriberStdio(const base::FilePath& path,
36 FileType file_type,
37 bool has_system_trace);
38 virtual ~TraceSubscriberStdio();
39
40 // Implementation of TraceSubscriber
41 virtual void OnEndTracingComplete() OVERRIDE;
42 virtual void OnTraceDataCollected(
43 const scoped_refptr<base::RefCountedString>& data_ptr) OVERRIDE;
44
45 // To be used as callback to DebugDaemonClient::RequestStopSystemTracing().
46 virtual void OnEndSystemTracing(
47 const scoped_refptr<base::RefCountedString>& events_str_ptr);
48
49 private:
50 class TraceSubscriberStdioWorker;
51 scoped_refptr<TraceSubscriberStdioWorker> worker_;
52 DISALLOW_COPY_AND_ASSIGN(TraceSubscriberStdio);
53 };
54
55 } // namespace content
56
57 #endif // CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
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