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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> | 25 #include <stddef.h> |
26 #include <stdint.h> | 26 #include <stdint.h> |
27 | |
28 #include <cstddef> | 27 #include <cstddef> |
29 #include <deque> | 28 #include <deque> |
30 #include <list> | 29 #include <list> |
31 #include <map> | 30 #include <map> |
32 #include <set> | 31 #include <set> |
33 #include <string> | 32 #include <string> |
| 33 #include <utility> |
34 #include <vector> | 34 #include <vector> |
35 | 35 |
36 #include "base/macros.h" | 36 #include "base/macros.h" |
37 #include "base/memory/ref_counted.h" | 37 #include "base/memory/ref_counted.h" |
38 #include "base/memory/scoped_ptr.h" | 38 #include "base/memory/scoped_ptr.h" |
39 #include "base/memory/weak_ptr.h" | 39 #include "base/memory/weak_ptr.h" |
40 #include "base/time/time.h" | 40 #include "base/time/time.h" |
41 #include "base/timer/timer.h" | 41 #include "base/timer/timer.h" |
42 #include "net/base/address_list.h" | 42 #include "net/base/address_list.h" |
43 #include "net/base/completion_callback.h" | 43 #include "net/base/completion_callback.h" |
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750 const scoped_refptr<SocketParams>& params, | 750 const scoped_refptr<SocketParams>& params, |
751 RequestPriority priority, | 751 RequestPriority priority, |
752 ClientSocketHandle* handle, | 752 ClientSocketHandle* handle, |
753 const CompletionCallback& callback, | 753 const CompletionCallback& callback, |
754 const BoundNetLog& net_log) { | 754 const BoundNetLog& net_log) { |
755 scoped_ptr<const Request> request( | 755 scoped_ptr<const Request> request( |
756 new Request(handle, callback, priority, | 756 new Request(handle, callback, priority, |
757 internal::ClientSocketPoolBaseHelper::NORMAL, | 757 internal::ClientSocketPoolBaseHelper::NORMAL, |
758 params->ignore_limits(), | 758 params->ignore_limits(), |
759 params, net_log)); | 759 params, net_log)); |
760 return helper_.RequestSocket(group_name, request.Pass()); | 760 return helper_.RequestSocket(group_name, std::move(request)); |
761 } | 761 } |
762 | 762 |
763 // RequestSockets bundles up the parameters into a Request and then forwards | 763 // RequestSockets bundles up the parameters into a Request and then forwards |
764 // to ClientSocketPoolBaseHelper::RequestSockets(). Note that it assigns the | 764 // to ClientSocketPoolBaseHelper::RequestSockets(). Note that it assigns the |
765 // priority to IDLE and specifies the NO_IDLE_SOCKETS flag. | 765 // priority to IDLE and specifies the NO_IDLE_SOCKETS flag. |
766 void RequestSockets(const std::string& group_name, | 766 void RequestSockets(const std::string& group_name, |
767 const scoped_refptr<SocketParams>& params, | 767 const scoped_refptr<SocketParams>& params, |
768 int num_sockets, | 768 int num_sockets, |
769 const BoundNetLog& net_log) { | 769 const BoundNetLog& net_log) { |
770 const Request request(NULL /* no handle */, CompletionCallback(), IDLE, | 770 const Request request(NULL /* no handle */, CompletionCallback(), IDLE, |
771 internal::ClientSocketPoolBaseHelper::NO_IDLE_SOCKETS, | 771 internal::ClientSocketPoolBaseHelper::NO_IDLE_SOCKETS, |
772 params->ignore_limits(), params, net_log); | 772 params->ignore_limits(), params, net_log); |
773 helper_.RequestSockets(group_name, request, num_sockets); | 773 helper_.RequestSockets(group_name, request, num_sockets); |
774 } | 774 } |
775 | 775 |
776 void CancelRequest(const std::string& group_name, | 776 void CancelRequest(const std::string& group_name, |
777 ClientSocketHandle* handle) { | 777 ClientSocketHandle* handle) { |
778 return helper_.CancelRequest(group_name, handle); | 778 return helper_.CancelRequest(group_name, handle); |
779 } | 779 } |
780 | 780 |
781 void ReleaseSocket(const std::string& group_name, | 781 void ReleaseSocket(const std::string& group_name, |
782 scoped_ptr<StreamSocket> socket, | 782 scoped_ptr<StreamSocket> socket, |
783 int id) { | 783 int id) { |
784 return helper_.ReleaseSocket(group_name, socket.Pass(), id); | 784 return helper_.ReleaseSocket(group_name, std::move(socket), id); |
785 } | 785 } |
786 | 786 |
787 void FlushWithError(int error) { helper_.FlushWithError(error); } | 787 void FlushWithError(int error) { helper_.FlushWithError(error); } |
788 | 788 |
789 bool IsStalled() const { return helper_.IsStalled(); } | 789 bool IsStalled() const { return helper_.IsStalled(); } |
790 | 790 |
791 void CloseIdleSockets() { return helper_.CloseIdleSockets(); } | 791 void CloseIdleSockets() { return helper_.CloseIdleSockets(); } |
792 | 792 |
793 int idle_socket_count() const { return helper_.idle_socket_count(); } | 793 int idle_socket_count() const { return helper_.idle_socket_count(); } |
794 | 794 |
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875 }; | 875 }; |
876 | 876 |
877 internal::ClientSocketPoolBaseHelper helper_; | 877 internal::ClientSocketPoolBaseHelper helper_; |
878 | 878 |
879 DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolBase); | 879 DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolBase); |
880 }; | 880 }; |
881 | 881 |
882 } // namespace net | 882 } // namespace net |
883 | 883 |
884 #endif // NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ | 884 #endif // NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_ |
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