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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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