71f0ed8b74
This eliminates some overhead, because the compiler doesn't need to consider these functions throwing.
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* Copyright 2003-2017 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "SocketError.hxx"
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#include "util/Macros.hxx"
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#include <string.h>
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#ifdef WIN32
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SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
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{
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#ifdef _UNICODE
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wchar_t buffer[ARRAY_SIZE(msg)];
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#else
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auto *buffer = msg;
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#endif
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DWORD nbytes = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS |
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FORMAT_MESSAGE_MAX_WIDTH_MASK,
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nullptr, code, 0,
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buffer, ARRAY_SIZE(msg), nullptr);
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if (nbytes == 0) {
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strcpy(msg, "Unknown error");
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return;
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}
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#ifdef _UNICODE
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auto length = WideCharToMultiByte(CP_UTF8, 0, buffer, -1,
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msg, ARRAY_SIZE(msg),
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nullptr, nullptr);
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if (length <= 0) {
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strcpy(msg, "WideCharToMultiByte() error");
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return;
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}
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#endif
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}
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#else
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SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
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:msg(strerror(code)) {}
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#endif
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