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3461bafaa2
New classes:
class async_completion:
Helper class for implementing asynchronous initiation functions.
See n3964:
Library Foundations for Asynchronous Operations, Revision 1
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3964.pdf
class basic_streambuf:
Meets the requirements of Streambuf.
class buffered_readstream:
Buffers a ReadStream with a ConstBufferSequence.
class consuming_buffers:
Adapts a BufferSequence which wraps the underlying buffer
sequence and presents fewer bytes, with the retained bytes
occurring at the end of the sequence.
class handler_alloc:
A C++ Allocator the uses asio handler allocation hooks.
class static_streambuf:
An implementation of the Streambuf concept that uses a
fixed size buffer with size determined at compile-time.
class streambuf_readstream:
Buffers a ReadStream with a Streambuf.
New functions:
append_buffers()
Returns a new BufferSequence which efficiently concatenates
two or more buffer sequences together.
prepare_buffers()
Shortens a buffer sequence. The bytes excluded are at the
end of the underlying buffer sequence.
boost::asio::read_until()
A copy of boost::asio::read_until overloads, modified to work
with a beast::asio::basic_streambuf.
Debugging:
buffers_to_string()
Convert a ConstBufferSequence to a human readable string
suitable for diagnostics.
type_check.h:
Metafunctions for checking asio concepts:
AsyncReadStream, AsyncWriteStream
SyncReadStream, SyncWriteStream
ConstBufferSequence, MutableBufferSequence
Streambuf
Handler
Changes:
* All symbols moved up a namespace level.
* streambuf provides all move and copy special members,
behavior of moved from objects is well-defined.
Fixes:
* Fix basic_streambuf iterator category.
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_ASIO_SSL_ERROR_H_INCLUDED
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#define BEAST_ASIO_SSL_ERROR_H_INCLUDED
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#include <boost/asio.hpp>
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//#include <boost/asio/error.hpp> // Causes error with WinSock.h
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#include <boost/asio/ssl/error.hpp>
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#include <boost/lexical_cast.hpp>
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namespace beast {
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/** Returns a human readable message if the error code is SSL related. */
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template<class = void>
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std::string
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error_message_with_ssl(boost::system::error_code const& ec)
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{
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std::string error;
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if (ec.category() == boost::asio::error::get_ssl_category())
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{
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error = " ("
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+ boost::lexical_cast<std::string>(ERR_GET_LIB (ec.value ()))
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+ ","
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+ boost::lexical_cast<std::string>(ERR_GET_FUNC (ec.value ()))
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+ ","
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+ boost::lexical_cast<std::string>(ERR_GET_REASON (ec.value ()))
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+ ") ";
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// This buffer must be at least 120 bytes, most examples use 256.
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// https://www.openssl.org/docs/crypto/ERR_error_string.html
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char buf[256];
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::ERR_error_string_n(ec.value (), buf, sizeof(buf));
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error += buf;
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}
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else
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{
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error = ec.message();
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}
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return error;
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}
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/** Returns `true` if the error code is a SSL "short read." */
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inline
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bool
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is_short_read(boost::system::error_code const& ec)
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{
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return (ec.category() == boost::asio::error::get_ssl_category())
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&& (ERR_GET_REASON(ec.value()) == SSL_R_SHORT_READ);
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}
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} // beast
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#endif
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