NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.3: NDN, CCN, CCNx, content centric networks
API Documentation
base.hpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015, Peter Thorson. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  * * Redistributions of source code must retain the above copyright
7  * notice, this list of conditions and the following disclaimer.
8  * * Redistributions in binary form must reproduce the above copyright
9  * notice, this list of conditions and the following disclaimer in the
10  * documentation and/or other materials provided with the distribution.
11  * * Neither the name of the WebSocket++ Project nor the
12  * names of its contributors may be used to endorse or promote products
13  * derived from this software without specific prior written permission.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
19  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  */
27 
28 #ifndef WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP
29 #define WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP
30 
37 
38 #include <string>
39 
40 // Interface that sockets/security policies must implement
41 
42 /*
43  * Endpoint Interface
44  *
45  * bool is_secure() const;
46  * @return Whether or not the endpoint creates secure connections
47  *
48  * lib::error_code init(socket_con_ptr scon);
49  * Called by the transport after a new connection is created to initialize
50  * the socket component of the connection.
51  * @param scon Pointer to the socket component of the connection
52  * @return Error code (empty on success)
53  */
54 
55 
56 // Connection
57 // TODO
58 // set_hostname(std::string hostname)
59 // pre_init(init_handler);
60 // post_init(init_handler);
61 
62 namespace websocketpp {
63 namespace transport {
64 namespace asio {
65 namespace socket {
66 
67 typedef lib::function<void(lib::asio::error_code const &)> shutdown_handler;
68 
74 namespace error {
76  enum value {
79  security = 1,
80 
84 
87 
91 
94 
97 
100 
103 
106  };
107 } // namespace error
108 
110 class socket_category : public lib::error_category {
111 public:
112  char const * name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_ {
113  return "websocketpp.transport.asio.socket";
114  }
115 
116  std::string message(int value) const {
117  switch(value) {
118  case error::security:
119  return "Security policy error";
120  case error::socket:
121  return "Socket component error";
123  return "Invalid state";
125  return "Invalid or empty TLS context supplied";
127  return "TLS handshake timed out";
128  case error::pass_through:
129  return "Pass through from socket policy";
131  return "Required tls_init handler not present.";
133  return "TLS handshake failed";
135  return "Failed to set TLS SNI hostname";
136  default:
137  return "Unknown";
138  }
139  }
140 };
141 
142 inline lib::error_category const & get_socket_category() {
143  static socket_category instance;
144  return instance;
145 }
146 
147 inline lib::error_code make_error_code(error::value e) {
148  return lib::error_code(static_cast<int>(e), get_socket_category());
149 }
150 
152 typedef lib::function<void(const lib::error_code&)> init_handler;
153 
154 } // namespace socket
155 } // namespace asio
156 } // namespace transport
157 } // namespace websocketpp
158 
159 #endif // WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP
Error category related to asio transport socket policies.
Definition: base.hpp:110
#define _WEBSOCKETPP_NOEXCEPT_TOKEN_
Definition: cpp11.hpp:113
char const * name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_
Definition: base.hpp:112
pass_through from underlying library
Definition: base.hpp:96
Catch-all error for security policy errors that don&#39;t fit in other categories.
Definition: base.hpp:79
A function was called in a state that it was illegal to do so.
Definition: base.hpp:86
The application was prompted to provide a TLS context and it was empty or otherwise invalid...
Definition: base.hpp:90
Namespace for the WebSocket++ project.
Definition: base64.hpp:41
lib::function< void(lib::asio::error_code const &)> shutdown_handler
Definition: base.hpp:67
Catch-all error for socket component errors that don&#39;t fit in other categories.
Definition: base.hpp:83
lib::error_category const & get_socket_category()
Definition: base.hpp:142
lib::error_code make_error_code(error::value e)
Definition: base.hpp:147
lib::function< void(const lib::error_code &)> init_handler
Type of asio transport socket policy initialization handlers.
Definition: base.hpp:152