ceph/src/boost/boost/beast/http/error.hpp

   1 //
   2 // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/beast
   8 //
   9
  10 #ifndef BOOST_BEAST_HTTP_ERROR_HPP
  11 #define BOOST_BEAST_HTTP_ERROR_HPP
  12
  13 #include <boost/beast/core/detail/config.hpp>
  14 #include <boost/beast/core/error.hpp>
  15
  16 namespace boost {
  17 namespace beast {
  18 namespace http {
  19
  20 /// Error codes returned from HTTP algorithms and operations.
  21 enum class error
  22 {
  23     /** The end of the stream was reached.
  24
  25         This error is returned under the following conditions:
  26
  27         @li When attempting to read HTTP data from a stream and the stream
  28         read returns the error `boost::asio::error::eof` before any new octets
  29         have been received.
  30
  31         @li When sending a complete HTTP message at once and the semantics of
  32         the message are that the connection should be closed to indicate the
  33         end of the message.
  34     */
  35     end_of_stream = 1,
  36
  37     /** The incoming message is incomplete.
  38
  39         This happens when the end of stream is reached during
  40         parsing and some octets have been received, but not the
  41         entire message.
  42     */
  43     partial_message,
  44
  45     /** Additional buffers are required.
  46
  47         This error is returned during parsing when additional
  48         octets are needed. The caller should append more data
  49         to the existing buffer and retry the parse operaetion.
  50     */
  51     need_more,
  52
  53     /** An unexpected body was encountered during parsing.
  54
  55         This error is returned when attempting to parse body
  56         octets into a message container which has the
  57         @ref empty_body body type.
  58
  59         @see @ref empty_body
  60     */
  61     unexpected_body,
  62
  63     /** Additional buffers are required.
  64
  65         This error is returned under the following conditions:
  66
  67         @li During serialization when using @ref buffer_body.
  68         The caller should update the body to point to a new
  69         buffer or indicate that there are no more octets in
  70         the body.
  71
  72         @li During parsing when using @ref buffer_body.
  73         The caller should update the body to point to a new
  74         storage area to receive additional body octets.
  75     */
  76     need_buffer,
  77
  78     /** The end of a chunk was reached
  79     */
  80     end_of_chunk,
  81
  82     /** Buffer maximum exceeded.
  83
  84         This error is returned when reading HTTP content
  85         into a dynamic buffer, and the operation would
  86         exceed the maximum size of the buffer.
  87     */
  88     buffer_overflow,
  89
  90     /** Header limit exceeded.
  91
  92         The parser detected an incoming message header which
  93         exceeded a configured limit.
  94     */
  95     header_limit,
  96
  97     /** Body limit exceeded.
  98
  99         The parser detected an incoming message body which
 100         exceeded a configured limit.
 101     */
 102     body_limit,
 103
 104     /** A memory allocation failed.
 105
 106         When basic_fields throws std::bad_alloc, it is
 107         converted into this error by @ref parser.
 108     */
 109     bad_alloc,
 110
 111     //
 112     // (parser errors)
 113     //
 114
 115     /// The line ending was malformed
 116     bad_line_ending,
 117
 118     /// The method is invalid.
 119     bad_method,
 120
 121     /// The request-target is invalid.
 122     bad_target,
 123
 124     /// The HTTP-version is invalid.
 125     bad_version,
 126
 127     /// The status-code is invalid.
 128     bad_status,
 129
 130     /// The reason-phrase is invalid.
 131     bad_reason,
 132
 133     /// The field name is invalid.
 134     bad_field,
 135
 136     /// The field value is invalid.
 137     bad_value,
 138
 139     /// The Content-Length is invalid.
 140     bad_content_length,
 141
 142     /// The Transfer-Encoding is invalid.
 143     bad_transfer_encoding,
 144
 145     /// The chunk syntax is invalid.
 146     bad_chunk,
 147
 148     /// The chunk extension is invalid.
 149     bad_chunk_extension,
 150
 151     /// An obs-fold exceeded an internal limit.
 152     bad_obs_fold
 153 };
 154
 155 } // http
 156 } // beast
 157 } // boost
 158
 159 #include <boost/beast/http/impl/error.ipp>
 160
 161 #endif