blob: 9bbf15276c1fc71783627cd315519a4487b3eae9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_NET_CHROME_NET_LOG_H_
#define CHROME_BROWSER_NET_CHROME_NET_LOG_H_
#include "base/atomicops.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "base/synchronization/lock.h"
#include "net/base/net_log.h"
class NetLogLogger;
class NetLogTempFile;
// ChromeNetLog is an implementation of NetLog that dispatches network log
// messages to a list of observers.
//
// All methods are thread safe, with the exception that no NetLog or
// NetLog::ThreadSafeObserver functions may be called by an observer's
// OnAddEntry() method. Doing so will result in a deadlock.
class ChromeNetLog : public net::NetLog {
public:
ChromeNetLog();
virtual ~ChromeNetLog();
// NetLog implementation:
virtual uint32 NextID() OVERRIDE;
virtual LogLevel GetLogLevel() const OVERRIDE;
virtual void AddThreadSafeObserver(ThreadSafeObserver* observer,
LogLevel log_level) OVERRIDE;
virtual void SetObserverLogLevel(ThreadSafeObserver* observer,
LogLevel log_level) OVERRIDE;
virtual void RemoveThreadSafeObserver(ThreadSafeObserver* observer) OVERRIDE;
NetLogTempFile* net_log_temp_file() {
return net_log_temp_file_.get();
}
private:
// NetLog implementation:
virtual void OnAddEntry(const net::NetLog::Entry& entry) OVERRIDE;
// Called whenever an observer is added or removed, or has its log level
// changed. Must have acquired |lock_| prior to calling.
void UpdateLogLevel();
// |lock_| protects access to |observers_|.
base::Lock lock_;
// Last assigned source ID. Incremented to get the next one.
base::subtle::Atomic32 last_id_;
// The lowest allowed log level, regardless of any ChromeNetLogObservers.
// Normally defaults to LOG_BASIC, but can be changed with command line flags.
LogLevel base_log_level_;
// The current log level.
base::subtle::Atomic32 effective_log_level_;
scoped_ptr<NetLogLogger> net_log_logger_;
scoped_ptr<NetLogTempFile> net_log_temp_file_;
// |lock_| must be acquired whenever reading or writing to this.
ObserverList<ThreadSafeObserver, true> observers_;
DISALLOW_COPY_AND_ASSIGN(ChromeNetLog);
};
#endif // CHROME_BROWSER_NET_CHROME_NET_LOG_H_
|
