Exit Zen
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string ID 40
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English
All synchronous stream operations come in two varieties. One which throws an exception upon error, and another which accepts as the last parameter an argument of type [link beast.ref.boost__beast__error_code `error_code&`]. If an error occurs this argument will be set to contain the error code.
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Messages may optionally carry a body. The size of the message body is determined by the semantics of the message and the special fields Content-Length and Transfer-Encoding. [@https://tools.ietf.org/html/rfc7230#section-3.3 rfc7230 section 3.3] provides a comprehensive description for how the body length is determined.
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Synchronous input and output is accomplished through blocking function calls that return with the result of the operation. Such operations typically cannot be canceled and do not have a method for setting a timeout. The __SyncReadStream__ and __SyncWriteStream__ concepts define requirements for ['synchronous streams]: a portable I/O abstraction that transfers data using buffer sequences to represent bytes and either `error_code` or an exception to report any failures. [@boost:/doc/html/boost_asio/reference/basic_stream_socket.html ['net::basic_stream_socket]] is a synchronous stream commonly used to form TCP/IP connections. User-defined types which meet the requirements are possible:
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type: table title
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Header
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string ID 29
type: table code
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/// An HTTP/1 parser for producing a request message.
template<class Body, class Allocator = std::allocator<char>>
using request_parser = parser<true, Body, Allocator>;
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string ID 76
type: list
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* [issue 3009] Removed moved sections from documentation
* [issue 3009] Removed superfluous log messages from tests
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string ID 51
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Semantics, Pre/Post-conditions
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string ID 30
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`B::reader`
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string ID 93
type: list
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* No stateful allocator support.
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string ID 50
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Semantics, Pre/Post-conditions
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14
string ID 36
type: table cell
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A type which meets the requirements of __FieldsWriter__.
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string ID 30
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[link beast.ref.boost__beast__http__basic_parser.body_limit `body_limit`]
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string ID 63
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Boost.Beast depends specifically on the Boost.Asio flavor of Networking, although this may change in the future. While this library offers performant implementations of the HTTP and WebSocket network protocols, it depends on the networking interfaces to perform general tasks such as performing domain name resolution (DNS lookup), establishing outgoing connections, and accepting incoming connections. Callers are responsible for interacting with networking to initialize objects to the correct state where they are usable by this library.
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The following video presentation was delivered at [@https://cppcon.org/ CppCon] in 2016. It provides a light introduction to some of the earliest interfaces of Beast (which have since changed).
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type: table cell
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Send a buffer sequence as part of a message.
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This declares a normal function which decorates outgoing HTTP requests:
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Wire Format
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string ID 36
type: table cell
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Requires ['MoveConstructible].
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14
string ID 66
type: heading
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Value Type
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string ID 45
type: table cell
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Semantics, Pre/Post-conditions
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