105 lines
3.2 KiB
Plaintext
105 lines
3.2 KiB
Plaintext
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//
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// error_code.ipp
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// ~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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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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#ifndef ASIO_ERROR_CODE_IPP
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#define ASIO_ERROR_CODE_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/config.hpp>
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#include <cerrno>
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#include <cstring>
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#include "asio/detail/pop_options.hpp"
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#include "asio/error.hpp"
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#include "asio/detail/local_free_on_block_exit.hpp"
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#include "asio/detail/socket_types.hpp"
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namespace asio {
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inline std::string error_code::message() const
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{
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if (*this == error::already_open)
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return "Already open.";
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if (*this == error::not_found)
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return "Not found.";
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if (*this == error::fd_set_failure)
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return "The descriptor does not fit into the select call's fd_set.";
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if (category_ == error::get_ssl_category())
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return "SSL error.";
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#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
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value_type value = value_;
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if (category() != error::get_system_category() && *this != error::eof)
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return "asio error";
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if (*this == error::eof)
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value = ERROR_HANDLE_EOF;
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char* msg = 0;
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DWORD length = ::FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER
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| FORMAT_MESSAGE_FROM_SYSTEM
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| FORMAT_MESSAGE_IGNORE_INSERTS, 0, value,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char*)&msg, 0, 0);
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detail::local_free_on_block_exit local_free_obj(msg);
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if (length && msg[length - 1] == '\n')
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msg[--length] = '\0';
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if (length && msg[length - 1] == '\r')
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msg[--length] = '\0';
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if (length)
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return msg;
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else
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return "asio error";
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#else // defined(BOOST_WINDOWS)
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if (*this == error::eof)
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return "End of file.";
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if (*this == error::host_not_found)
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return "Host not found (authoritative).";
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if (*this == error::host_not_found_try_again)
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return "Host not found (non-authoritative), try again later.";
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if (*this == error::no_recovery)
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return "A non-recoverable error occurred during database lookup.";
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if (*this == error::no_data)
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return "The query is valid, but it does not have associated data.";
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if (*this == error::not_found)
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return "Element not found.";
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#if !defined(__sun)
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if (*this == error::operation_aborted)
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return "Operation aborted.";
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#endif // !defined(__sun)
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if (*this == error::service_not_found)
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return "Service not found.";
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if (*this == error::socket_type_not_supported)
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return "Socket type not supported.";
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if (category() != error::get_system_category())
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return "asio error";
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#if defined(__sun) || defined(__QNX__)
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return strerror(value_);
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#elif defined(__MACH__) && defined(__APPLE__) \
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|| defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) \
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|| defined(_AIX) || defined(__hpux) || defined(__osf__)
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char buf[256] = "";
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strerror_r(value_, buf, sizeof(buf));
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return buf;
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#else
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char buf[256] = "";
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return strerror_r(value_, buf, sizeof(buf));
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#endif
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#endif // defined(BOOST_WINDOWS)
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}
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_ERROR_CODE_IPP
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