blob: c0b9ccdf676d0375123041bd58df5e7d5b0787f0 (
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// Copyright (c) 2010 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_IO_THREAD_H_
#define CHROME_BROWSER_IO_THREAD_H_
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "base/task.h"
#include "chrome/browser/browser_process_sub_thread.h"
#include "chrome/common/net/dns.h"
#include "net/base/host_resolver.h"
class ListValue;
namespace chrome_browser_net {
class DnsMaster;
} // namespace chrome_browser_net
namespace net {
class HttpAuthHandlerFactory;
class NetworkChangeNotifier;
} // namespace net
class IOThread : public BrowserProcessSubThread {
public:
struct Globals {
scoped_ptr<net::NetworkChangeNotifier> network_change_notifier;
// TODO(willchan): Stop reference counting HostResolver. It's owned by
// IOThread now.
scoped_refptr<net::HostResolver> host_resolver;
scoped_ptr<net::HttpAuthHandlerFactory> http_auth_handler_factory;
};
IOThread();
virtual ~IOThread();
// Can only be called on the IO thread.
Globals* globals();
// Initializes the DnsMaster. |prefetching_enabled| indicates whether or
// not dns prefetching should be enabled. This should be called by the UI
// thread. It will post a task to the IO thread to perform the actual
// initialization.
void InitDnsMaster(bool prefetching_enabled,
base::TimeDelta max_queue_delay,
size_t max_concurrent,
const chrome_common_net::NameList& hostnames_to_prefetch,
ListValue* referral_list);
// Handles changing to On The Record mode. Posts a task for this onto the
// IOThread's message loop.
void ChangedToOnTheRecord();
protected:
virtual void Init();
virtual void CleanUp();
private:
void InitDnsMasterOnIOThread(
bool prefetching_enabled,
base::TimeDelta max_queue_delay,
size_t max_concurrent,
chrome_common_net::NameList hostnames_to_prefetch,
ListValue* referral_list);
void ChangedToOnTheRecordOnIOThread();
// These member variables are basically global, but their lifetimes are tied
// to the IOThread. IOThread owns them all, despite not using scoped_ptr.
// This is because the destructor of IOThread runs on the wrong thread. All
// member variables should be deleted in CleanUp().
// These member variables are initialized in Init() and do not change for the
// lifetime of the IO thread.
Globals* globals_;
// These member variables are initialized by a task posted to the IO thread,
// which gets posted by calling certain member functions of IOThread.
net::HostResolver::Observer* prefetch_observer_;
chrome_browser_net::DnsMaster* dns_master_;
DISALLOW_COPY_AND_ASSIGN(IOThread);
};
#endif // CHROME_BROWSER_IO_THREAD_H_
|
