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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" |
9 #include "net/base/net_export.h" | 10 #include "net/base/net_export.h" |
10 #include "net/http/http_pipelined_connection.h" | 11 #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; | |
18 class HttpPipelinedStream; | 17 class HttpPipelinedStream; |
19 class ProxyInfo; | 18 class ProxyInfo; |
20 struct SSLConfig; | 19 struct SSLConfig; |
21 | 20 |
22 // Manages all of the pipelining state for specific host with active pipelined | 21 // Manages all of the pipelining state for specific host with active pipelined |
23 // HTTP requests. Manages connection jobs, constructs pipelined streams, and | 22 // HTTP requests. Manages connection jobs, constructs pipelined streams, and |
24 // assigns requests to the least loaded pipelined connection. | 23 // assigns requests to the least loaded pipelined connection. |
25 class NET_EXPORT_PRIVATE HttpPipelinedHost { | 24 class NET_EXPORT_PRIVATE HttpPipelinedHost { |
26 public: | 25 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 |
27 class Delegate { | 34 class Delegate { |
28 public: | 35 public: |
29 // Called when a pipelined host has no outstanding requests on any of its | 36 // Called when a pipelined host has no outstanding requests on any of its |
30 // pipelined connections. | 37 // pipelined connections. |
31 virtual void OnHostIdle(HttpPipelinedHost* host) = 0; | 38 virtual void OnHostIdle(HttpPipelinedHost* host) = 0; |
32 | 39 |
33 // Called when a pipelined host has newly available pipeline capacity, like | 40 // Called when a pipelined host has newly available pipeline capacity, like |
34 // when a request completes. | 41 // when a request completes. |
35 virtual void OnHostHasAdditionalCapacity(HttpPipelinedHost* host) = 0; | 42 virtual void OnHostHasAdditionalCapacity(HttpPipelinedHost* host) = 0; |
36 | 43 |
37 // Called when a host determines if pipelining can be used. | 44 // Called when a host determines if pipelining can be used. |
38 virtual void OnHostDeterminedCapability( | 45 virtual void OnHostDeterminedCapability(HttpPipelinedHost* host, |
39 HttpPipelinedHost* host, | 46 Capability capability) = 0; |
40 HttpPipelinedHostCapability capability) = 0; | |
41 }; | 47 }; |
42 | 48 |
43 class Factory { | 49 class Factory { |
44 public: | 50 public: |
45 virtual ~Factory() {} | 51 virtual ~Factory() {} |
46 | 52 |
47 // Returns a new HttpPipelinedHost. | 53 // Returns a new HttpPipelinedHost. |
48 virtual HttpPipelinedHost* CreateNewHost( | 54 virtual HttpPipelinedHost* CreateNewHost( |
49 Delegate* delegate, const HostPortPair& origin, | 55 Delegate* delegate, const HostPortPair& origin, |
50 HttpPipelinedConnection::Factory* factory, | 56 HttpPipelinedConnection::Factory* factory, |
51 HttpPipelinedHostCapability capability) = 0; | 57 Capability capability) = 0; |
52 }; | 58 }; |
53 | 59 |
54 virtual ~HttpPipelinedHost() {} | 60 virtual ~HttpPipelinedHost() {} |
55 | 61 |
56 // Constructs a new pipeline on |connection| and returns a new | 62 // Constructs a new pipeline on |connection| and returns a new |
57 // HttpPipelinedStream that uses it. | 63 // HttpPipelinedStream that uses it. |
58 virtual HttpPipelinedStream* CreateStreamOnNewPipeline( | 64 virtual HttpPipelinedStream* CreateStreamOnNewPipeline( |
59 ClientSocketHandle* connection, | 65 ClientSocketHandle* connection, |
60 const SSLConfig& used_ssl_config, | 66 const SSLConfig& used_ssl_config, |
61 const ProxyInfo& used_proxy_info, | 67 const ProxyInfo& used_proxy_info, |
62 const BoundNetLog& net_log, | 68 const BoundNetLog& net_log, |
63 bool was_npn_negotiated) = 0; | 69 bool was_npn_negotiated) = 0; |
64 | 70 |
65 // Tries to find an existing pipeline with capacity for a new request. If | 71 // Tries to find an existing pipeline with capacity for a new request. If |
66 // successful, returns a new stream on that pipeline. Otherwise, returns NULL. | 72 // successful, returns a new stream on that pipeline. Otherwise, returns NULL. |
67 virtual HttpPipelinedStream* CreateStreamOnExistingPipeline() = 0; | 73 virtual HttpPipelinedStream* CreateStreamOnExistingPipeline() = 0; |
68 | 74 |
69 // Returns true if we have a pipelined connection that can accept new | 75 // Returns true if we have a pipelined connection that can accept new |
70 // requests. | 76 // requests. |
71 virtual bool IsExistingPipelineAvailable() const = 0; | 77 virtual bool IsExistingPipelineAvailable() const = 0; |
72 | 78 |
73 // Returns the host and port associated with this class. | 79 // Returns the host and port associated with this class. |
74 virtual const HostPortPair& origin() const = 0; | 80 virtual const HostPortPair& origin() const = 0; |
75 }; | 81 }; |
76 | 82 |
77 } // namespace net | 83 } // namespace net |
78 | 84 |
79 #endif // NET_HTTP_HTTP_PIPELINED_HOST_H_ | 85 #endif // NET_HTTP_HTTP_PIPELINED_HOST_H_ |
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