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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Copyright (c) 2012 Code Aurora Forum. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
#define NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
#include "base/timer.h"
#include "net/base/host_port_pair.h"
#include "net/base/host_resolver.h"
#include "net/socket/client_socket_pool_base.h"
#include "net/socket/client_socket_pool_histograms.h"
#include "net/socket/client_socket_pool.h"
namespace net {
class ClientSocketFactory;
class TCPSocketParams : public base::RefCounted<TCPSocketParams> {
public:
TCPSocketParams(const HostPortPair& host_port_pair, RequestPriority priority,
const GURL& referrer, bool disable_resolver_cache
#ifdef ANDROID
, bool ignore_limits
#endif
);
// TODO(willchan): Update all unittests so we don't need this.
TCPSocketParams(const std::string& host, int port, RequestPriority priority,
const GURL& referrer, bool disable_resolver_cache);
const HostResolver::RequestInfo& destination() const { return destination_; }
#ifdef ANDROID
bool ignore_limits() const { return ignore_limits_; }
// Gets the UID of the calling process
bool getUID(uid_t *uid) const;
void setUID(uid_t uid);
#endif
private:
friend class base::RefCounted<TCPSocketParams>;
~TCPSocketParams();
void Initialize(RequestPriority priority, const GURL& referrer,
bool disable_resolver_cache);
HostResolver::RequestInfo destination_;
#ifdef ANDROID
bool ignore_limits_;
bool valid_uid_;
int calling_uid_;
#endif
DISALLOW_COPY_AND_ASSIGN(TCPSocketParams);
};
// TCPConnectJob handles the host resolution necessary for socket creation
// and the tcp connect.
class TCPConnectJob : public ConnectJob {
public:
TCPConnectJob(const std::string& group_name,
const scoped_refptr<TCPSocketParams>& params,
base::TimeDelta timeout_duration,
ClientSocketFactory* client_socket_factory,
HostResolver* host_resolver,
Delegate* delegate,
NetLog* net_log);
virtual ~TCPConnectJob();
// ConnectJob methods.
virtual LoadState GetLoadState() const;
private:
enum State {
STATE_RESOLVE_HOST,
STATE_RESOLVE_HOST_COMPLETE,
STATE_TCP_CONNECT,
STATE_TCP_CONNECT_COMPLETE,
STATE_NONE,
};
void OnIOComplete(int result);
// Runs the state transition loop.
int DoLoop(int result);
int DoResolveHost();
int DoResolveHostComplete(int result);
int DoTCPConnect();
int DoTCPConnectComplete(int result);
// Begins the host resolution and the TCP connect. Returns OK on success
// and ERR_IO_PENDING if it cannot immediately service the request.
// Otherwise, it returns a net error code.
virtual int ConnectInternal();
scoped_refptr<TCPSocketParams> params_;
ClientSocketFactory* const client_socket_factory_;
CompletionCallbackImpl<TCPConnectJob> callback_;
SingleRequestHostResolver resolver_;
AddressList addresses_;
State next_state_;
// The time Connect() was called.
base::TimeTicks start_time_;
// The time the connect was started (after DNS finished).
base::TimeTicks connect_start_time_;
DISALLOW_COPY_AND_ASSIGN(TCPConnectJob);
};
class TCPClientSocketPool : public ClientSocketPool {
public:
TCPClientSocketPool(
int max_sockets,
int max_sockets_per_group,
ClientSocketPoolHistograms* histograms,
HostResolver* host_resolver,
ClientSocketFactory* client_socket_factory,
NetLog* net_log,
HttpNetworkSession *network_session);
virtual ~TCPClientSocketPool();
// ClientSocketPool methods:
virtual int RequestSocket(const std::string& group_name,
const void* resolve_info,
RequestPriority priority,
ClientSocketHandle* handle,
CompletionCallback* callback,
const BoundNetLog& net_log);
virtual void RequestSockets(const std::string& group_name,
const void* params,
int num_sockets,
const BoundNetLog& net_log);
virtual void CancelRequest(const std::string& group_name,
ClientSocketHandle* handle);
virtual void ReleaseSocket(const std::string& group_name,
ClientSocket* socket,
int id);
virtual void Flush();
virtual void CloseIdleSockets();
virtual int IdleSocketCount() const;
virtual int IdleSocketCountInGroup(const std::string& group_name) const;
virtual LoadState GetLoadState(const std::string& group_name,
const ClientSocketHandle* handle) const;
virtual DictionaryValue* GetInfoAsValue(const std::string& name,
const std::string& type,
bool include_nested_pools) const;
virtual base::TimeDelta ConnectionTimeout() const;
virtual ClientSocketPoolHistograms* histograms() const;
private:
typedef ClientSocketPoolBase<TCPSocketParams> PoolBase;
class TCPConnectJobFactory
: public PoolBase::ConnectJobFactory {
public:
TCPConnectJobFactory(ClientSocketFactory* client_socket_factory,
HostResolver* host_resolver,
NetLog* net_log)
: client_socket_factory_(client_socket_factory),
host_resolver_(host_resolver),
net_log_(net_log) {}
virtual ~TCPConnectJobFactory() {}
// ClientSocketPoolBase::ConnectJobFactory methods.
virtual ConnectJob* NewConnectJob(
const std::string& group_name,
const PoolBase::Request& request,
ConnectJob::Delegate* delegate) const;
virtual base::TimeDelta ConnectionTimeout() const;
private:
ClientSocketFactory* const client_socket_factory_;
HostResolver* const host_resolver_;
NetLog* net_log_;
DISALLOW_COPY_AND_ASSIGN(TCPConnectJobFactory);
};
PoolBase base_;
DISALLOW_COPY_AND_ASSIGN(TCPClientSocketPool);
};
REGISTER_SOCKET_PARAMS_FOR_POOL(TCPClientSocketPool, TCPSocketParams);
} // namespace net
#endif // NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
|
