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Side by Side Diff: net/base/net_log_logger.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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1 // Copyright 2013 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 NET_BASE_NET_LOG_LOGGER_H_
6 #define NET_BASE_NET_LOG_LOGGER_H_
7
8 #include <stdio.h>
9
10 #include "base/files/scoped_file.h"
11 #include "base/macros.h"
12 #include "net/base/net_log.h"
13
14 namespace base {
15 class DictionaryValue;
16 class FilePath;
17 class Value;
18 }
19
20 namespace net {
21
22 // NetLogLogger watches the NetLog event stream, and sends all entries to
23 // a file specified on creation.
24 //
25 // The text file will contain a single JSON object.
26 class NET_EXPORT NetLogLogger : public NetLog::ThreadSafeObserver {
27 public:
28 // Takes ownership of |file| and will write network events to it once logging
29 // starts. |file| must be non-NULL handle and be open for writing.
30 // |constants| is a legend for decoding constant values used in the log.
31 NetLogLogger(FILE* file, const base::Value& constants);
32 ~NetLogLogger() override;
33
34 // Sets the log level to log at. Must be called before StartObserving.
35 void set_log_level(NetLog::LogLevel log_level);
36
37 // Starts observing specified NetLog. Must not already be watching a NetLog.
38 // Separate from constructor to enforce thread safety.
39 void StartObserving(NetLog* net_log);
40
41 // Stops observing net_log(). Must already be watching.
42 void StopObserving();
43
44 // net::NetLog::ThreadSafeObserver implementation:
45 void OnAddEntry(const NetLog::Entry& entry) override;
46
47 // Create a dictionary containing legend for net/ constants. Caller takes
48 // ownership of returned value.
49 // TODO(mmenke): Get rid of this, and have embedders use GetNetConstants
50 // directly. Also maybe call that function by default, so only embedders
51 // that need more constants need to worry about it.
52 static base::DictionaryValue* GetConstants();
53
54 private:
55 base::ScopedFILE file_;
56
57 // The LogLevel to log at.
58 NetLog::LogLevel log_level_;
59
60 // True if OnAddEntry() has been called at least once.
61 bool added_events_;
62
63 DISALLOW_COPY_AND_ASSIGN(NetLogLogger);
64 };
65
66 } // namespace net
67
68 #endif // NET_BASE_NET_LOG_LOGGER_H_
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