forked from boostorg/beast
Vinnie Falco
75b0571e83
fix #373 * concepts.hpp is renamed to type_traits.hpp * Body reader and writer concepts are renamed
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
[/
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Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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]
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[section:Body Body requirements]
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A [*Body] type is supplied as a template argument to the __message__ class. It
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controls both the type of the data member of the resulting message object, and
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the algorithms used during parsing and serialization.
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In this table:
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* `X` is a type meeting the requirements of [*Body].
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[table Body requirements
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[[expression] [type] [semantics, pre/post-conditions]]
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[
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[`X::value_type`]
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[]
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[
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The type of the `message::body` member.
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If this is not movable or not copyable, the containing message
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will be not movable or not copyable.
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]
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]
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[
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[`X::writer`]
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[]
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[
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If present, indicates that the body can hold a message body
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parsing result. The type must meet the requirements of
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[link beast.ref.BodyWriter [*BodyWriter]]. The implementation
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constructs an object of this type to obtain buffers into which
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parsed body octets are placed.
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]
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]
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[
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[`X::reader`]
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[]
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[
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If present, indicates that the body is serializable.
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The type must meet the requirements of
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[link beast.ref.BodyReader [*BodyReader]]. The implementation
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constructs an object of this type to obtain buffers representing
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the message body for serialization.
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]
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]
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[
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[`is_body<X>`]
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[`std::true_type`]
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[
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An alias for `std::true_type` for `X`, otherwise an alias
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for `std::false_type`.
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]
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]
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]
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[endsect]
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