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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // A ClientSocketPoolBase is used to restrict the number of sockets open at | 5 // A ClientSocketPoolBase is used to restrict the number of sockets open at |
6 // a time. It also maintains a list of idle persistent sockets for reuse. | 6 // a time. It also maintains a list of idle persistent sockets for reuse. |
7 // Subclasses of ClientSocketPool should compose ClientSocketPoolBase to handle | 7 // Subclasses of ClientSocketPool should compose ClientSocketPoolBase to handle |
8 // the core logic of (1) restricting the number of active (connected or | 8 // the core logic of (1) restricting the number of active (connected or |
9 // connecting) sockets per "group" (generally speaking, the hostname), (2) | 9 // connecting) sockets per "group" (generally speaking, the hostname), (2) |
10 // maintaining a per-group list of idle, persistent sockets for reuse, and (3) | 10 // maintaining a per-group list of idle, persistent sockets for reuse, and (3) |
11 // limiting the total number of active sockets in the system. | 11 // limiting the total number of active sockets in the system. |
12 // | 12 // |
13 // ClientSocketPoolBase abstracts socket connection details behind ConnectJob, | 13 // ClientSocketPoolBase abstracts socket connection details behind ConnectJob, |
14 // ConnectJobFactory, and SocketParams. When a socket "slot" becomes available, | 14 // ConnectJobFactory, and SocketParams. When a socket "slot" becomes available, |
15 // the ClientSocketPoolBase will ask the ConnectJobFactory to create a | 15 // the ClientSocketPoolBase will ask the ConnectJobFactory to create a |
16 // ConnectJob with a SocketParams. Subclasses of ClientSocketPool should | 16 // ConnectJob with a SocketParams. Subclasses of ClientSocketPool should |
17 // implement their socket specific connection by subclassing ConnectJob and | 17 // implement their socket specific connection by subclassing ConnectJob and |
18 // implementing ConnectJob::ConnectInternal(). They can control the parameters | 18 // implementing ConnectJob::ConnectInternal(). They can control the parameters |
19 // passed to each new ConnectJob instance via their ConnectJobFactory subclass | 19 // passed to each new ConnectJob instance via their ConnectJobFactory subclass |
20 // and templated SocketParams parameter. | 20 // and templated SocketParams parameter. |
21 // | 21 // |
22 #ifndef NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ | 22 #ifndef NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ |
23 #define NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ | 23 #define NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ |
24 | 24 |
| 25 #include <stddef.h> |
| 26 #include <stdint.h> |
| 27 |
25 #include <cstddef> | 28 #include <cstddef> |
26 #include <deque> | 29 #include <deque> |
27 #include <list> | 30 #include <list> |
28 #include <map> | 31 #include <map> |
29 #include <set> | 32 #include <set> |
30 #include <string> | 33 #include <string> |
31 #include <vector> | 34 #include <vector> |
32 | 35 |
33 #include "base/basictypes.h" | 36 #include "base/macros.h" |
34 #include "base/memory/ref_counted.h" | 37 #include "base/memory/ref_counted.h" |
35 #include "base/memory/scoped_ptr.h" | 38 #include "base/memory/scoped_ptr.h" |
36 #include "base/memory/weak_ptr.h" | 39 #include "base/memory/weak_ptr.h" |
37 #include "base/time/time.h" | 40 #include "base/time/time.h" |
38 #include "base/timer/timer.h" | 41 #include "base/timer/timer.h" |
39 #include "net/base/address_list.h" | 42 #include "net/base/address_list.h" |
40 #include "net/base/completion_callback.h" | 43 #include "net/base/completion_callback.h" |
41 #include "net/base/load_states.h" | 44 #include "net/base/load_states.h" |
42 #include "net/base/load_timing_info.h" | 45 #include "net/base/load_timing_info.h" |
43 #include "net/base/net_errors.h" | 46 #include "net/base/net_errors.h" |
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150 | 153 |
151 // ClientSocketPoolBaseHelper is an internal class that implements almost all | 154 // ClientSocketPoolBaseHelper is an internal class that implements almost all |
152 // the functionality from ClientSocketPoolBase without using templates. | 155 // the functionality from ClientSocketPoolBase without using templates. |
153 // ClientSocketPoolBase adds templated definitions built on top of | 156 // ClientSocketPoolBase adds templated definitions built on top of |
154 // ClientSocketPoolBaseHelper. This class is not for external use, please use | 157 // ClientSocketPoolBaseHelper. This class is not for external use, please use |
155 // ClientSocketPoolBase instead. | 158 // ClientSocketPoolBase instead. |
156 class NET_EXPORT_PRIVATE ClientSocketPoolBaseHelper | 159 class NET_EXPORT_PRIVATE ClientSocketPoolBaseHelper |
157 : public ConnectJob::Delegate, | 160 : public ConnectJob::Delegate, |
158 public NetworkChangeNotifier::IPAddressObserver { | 161 public NetworkChangeNotifier::IPAddressObserver { |
159 public: | 162 public: |
160 typedef uint32 Flags; | 163 typedef uint32_t Flags; |
161 | 164 |
162 // Used to specify specific behavior for the ClientSocketPool. | 165 // Used to specify specific behavior for the ClientSocketPool. |
163 enum Flag { | 166 enum Flag { |
164 NORMAL = 0, // Normal behavior. | 167 NORMAL = 0, // Normal behavior. |
165 NO_IDLE_SOCKETS = 0x1, // Do not return an idle socket. Create a new one. | 168 NO_IDLE_SOCKETS = 0x1, // Do not return an idle socket. Create a new one. |
166 }; | 169 }; |
167 | 170 |
168 class NET_EXPORT_PRIVATE Request { | 171 class NET_EXPORT_PRIVATE Request { |
169 public: | 172 public: |
170 Request(ClientSocketHandle* handle, | 173 Request(ClientSocketHandle* handle, |
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872 }; | 875 }; |
873 | 876 |
874 internal::ClientSocketPoolBaseHelper helper_; | 877 internal::ClientSocketPoolBaseHelper helper_; |
875 | 878 |
876 DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolBase); | 879 DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolBase); |
877 }; | 880 }; |
878 | 881 |
879 } // namespace net | 882 } // namespace net |
880 | 883 |
881 #endif // NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ | 884 #endif // NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ |
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