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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef NET_HTTP_HTTP_PIPELINED_HOST_H_ | 5 #ifndef NET_HTTP_HTTP_PIPELINED_HOST_H_ |
6 #define NET_HTTP_HTTP_PIPELINED_HOST_H_ | 6 #define NET_HTTP_HTTP_PIPELINED_HOST_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "net/base/host_port_pair.h" | |
10 #include "net/base/net_export.h" | 9 #include "net/base/net_export.h" |
11 #include "net/http/http_pipelined_connection.h" | 10 #include "net/http/http_pipelined_connection.h" |
| 11 #include "net/http/http_pipelined_host_capability.h" |
12 | 12 |
13 namespace net { | 13 namespace net { |
14 | 14 |
15 class BoundNetLog; | 15 class BoundNetLog; |
16 class ClientSocketHandle; | 16 class ClientSocketHandle; |
| 17 class HostPortPair; |
17 class HttpPipelinedStream; | 18 class HttpPipelinedStream; |
18 class ProxyInfo; | 19 class ProxyInfo; |
19 struct SSLConfig; | 20 struct SSLConfig; |
20 | 21 |
21 // Manages all of the pipelining state for specific host with active pipelined | 22 // Manages all of the pipelining state for specific host with active pipelined |
22 // HTTP requests. Manages connection jobs, constructs pipelined streams, and | 23 // HTTP requests. Manages connection jobs, constructs pipelined streams, and |
23 // assigns requests to the least loaded pipelined connection. | 24 // assigns requests to the least loaded pipelined connection. |
24 class NET_EXPORT_PRIVATE HttpPipelinedHost { | 25 class NET_EXPORT_PRIVATE HttpPipelinedHost { |
25 public: | 26 public: |
26 enum Capability { | |
27 UNKNOWN, | |
28 INCAPABLE, | |
29 CAPABLE, | |
30 PROBABLY_CAPABLE, // We are using pipelining, but haven't processed enough | |
31 // requests to record this host as known to be capable. | |
32 }; | |
33 | |
34 class Delegate { | 27 class Delegate { |
35 public: | 28 public: |
36 // Called when a pipelined host has no outstanding requests on any of its | 29 // Called when a pipelined host has no outstanding requests on any of its |
37 // pipelined connections. | 30 // pipelined connections. |
38 virtual void OnHostIdle(HttpPipelinedHost* host) = 0; | 31 virtual void OnHostIdle(HttpPipelinedHost* host) = 0; |
39 | 32 |
40 // Called when a pipelined host has newly available pipeline capacity, like | 33 // Called when a pipelined host has newly available pipeline capacity, like |
41 // when a request completes. | 34 // when a request completes. |
42 virtual void OnHostHasAdditionalCapacity(HttpPipelinedHost* host) = 0; | 35 virtual void OnHostHasAdditionalCapacity(HttpPipelinedHost* host) = 0; |
43 | 36 |
44 // Called when a host determines if pipelining can be used. | 37 // Called when a host determines if pipelining can be used. |
45 virtual void OnHostDeterminedCapability(HttpPipelinedHost* host, | 38 virtual void OnHostDeterminedCapability( |
46 Capability capability) = 0; | 39 HttpPipelinedHost* host, |
| 40 HttpPipelinedHostCapability capability) = 0; |
47 }; | 41 }; |
48 | 42 |
49 class Factory { | 43 class Factory { |
50 public: | 44 public: |
51 virtual ~Factory() {} | 45 virtual ~Factory() {} |
52 | 46 |
53 // Returns a new HttpPipelinedHost. | 47 // Returns a new HttpPipelinedHost. |
54 virtual HttpPipelinedHost* CreateNewHost( | 48 virtual HttpPipelinedHost* CreateNewHost( |
55 Delegate* delegate, const HostPortPair& origin, | 49 Delegate* delegate, const HostPortPair& origin, |
56 HttpPipelinedConnection::Factory* factory, | 50 HttpPipelinedConnection::Factory* factory, |
57 Capability capability) = 0; | 51 HttpPipelinedHostCapability capability) = 0; |
58 }; | 52 }; |
59 | 53 |
60 virtual ~HttpPipelinedHost() {} | 54 virtual ~HttpPipelinedHost() {} |
61 | 55 |
62 // Constructs a new pipeline on |connection| and returns a new | 56 // Constructs a new pipeline on |connection| and returns a new |
63 // HttpPipelinedStream that uses it. | 57 // HttpPipelinedStream that uses it. |
64 virtual HttpPipelinedStream* CreateStreamOnNewPipeline( | 58 virtual HttpPipelinedStream* CreateStreamOnNewPipeline( |
65 ClientSocketHandle* connection, | 59 ClientSocketHandle* connection, |
66 const SSLConfig& used_ssl_config, | 60 const SSLConfig& used_ssl_config, |
67 const ProxyInfo& used_proxy_info, | 61 const ProxyInfo& used_proxy_info, |
68 const BoundNetLog& net_log, | 62 const BoundNetLog& net_log, |
69 bool was_npn_negotiated) = 0; | 63 bool was_npn_negotiated) = 0; |
70 | 64 |
71 // Tries to find an existing pipeline with capacity for a new request. If | 65 // Tries to find an existing pipeline with capacity for a new request. If |
72 // successful, returns a new stream on that pipeline. Otherwise, returns NULL. | 66 // successful, returns a new stream on that pipeline. Otherwise, returns NULL. |
73 virtual HttpPipelinedStream* CreateStreamOnExistingPipeline() = 0; | 67 virtual HttpPipelinedStream* CreateStreamOnExistingPipeline() = 0; |
74 | 68 |
75 // Returns true if we have a pipelined connection that can accept new | 69 // Returns true if we have a pipelined connection that can accept new |
76 // requests. | 70 // requests. |
77 virtual bool IsExistingPipelineAvailable() const = 0; | 71 virtual bool IsExistingPipelineAvailable() const = 0; |
78 | 72 |
79 // Returns the host and port associated with this class. | 73 // Returns the host and port associated with this class. |
80 virtual const HostPortPair& origin() const = 0; | 74 virtual const HostPortPair& origin() const = 0; |
81 }; | 75 }; |
82 | 76 |
83 } // namespace net | 77 } // namespace net |
84 | 78 |
85 #endif // NET_HTTP_HTTP_PIPELINED_HOST_H_ | 79 #endif // NET_HTTP_HTTP_PIPELINED_HOST_H_ |
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