140 lines
2.8 KiB
C++
140 lines
2.8 KiB
C++
/*
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* Copyright 2003-2016 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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#ifndef MPD_SOCKET_ERROR_HXX
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#define MPD_SOCKET_ERROR_HXX
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#include "Compiler.h"
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#include "util/Error.hxx" // IWYU pragma: export
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#ifdef WIN32
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#include <winsock2.h>
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typedef DWORD socket_error_t;
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#else
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#include <errno.h>
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typedef int socket_error_t;
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#endif
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class Domain;
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/**
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* A #Domain for #Error for socket I/O errors. The code is an errno
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* value (or WSAGetLastError() on Windows).
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*/
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extern const Domain socket_domain;
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gcc_pure
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static inline socket_error_t
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GetSocketError()
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{
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#ifdef WIN32
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return WSAGetLastError();
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#else
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return errno;
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#endif
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}
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gcc_const
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static inline bool
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IsSocketErrorAgain(socket_error_t code)
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{
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#ifdef WIN32
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return code == WSAEINPROGRESS;
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#else
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return code == EAGAIN;
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#endif
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}
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gcc_const
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static inline bool
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IsSocketErrorInterruped(socket_error_t code)
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{
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#ifdef WIN32
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return code == WSAEINTR;
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#else
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return code == EINTR;
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#endif
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}
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gcc_const
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static inline bool
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IsSocketErrorClosed(socket_error_t code)
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{
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#ifdef WIN32
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return code == WSAECONNRESET;
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#else
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return code == EPIPE || code == ECONNRESET;
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#endif
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}
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/**
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* Helper class that formats a socket error message into a
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* human-readable string. On Windows, a buffer is necessary for this,
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* and this class hosts the buffer.
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*/
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class SocketErrorMessage {
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#ifdef WIN32
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char msg[256];
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#else
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const char *const msg;
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#endif
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public:
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#ifdef WIN32
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explicit SocketErrorMessage(socket_error_t code=GetSocketError());
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#else
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explicit SocketErrorMessage(socket_error_t code=GetSocketError());
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#endif
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operator const char *() const {
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return msg;
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}
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};
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static inline void
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SetSocketError(Error &error, socket_error_t code)
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{
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const SocketErrorMessage msg(code);
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error.Set(socket_domain, code, msg);
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}
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static inline void
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SetSocketError(Error &error)
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{
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SetSocketError(error, GetSocketError());
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}
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gcc_const
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static inline Error
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NewSocketError(socket_error_t code)
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{
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Error error;
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SetSocketError(error, code);
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return error;
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}
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gcc_pure
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static inline Error
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NewSocketError()
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{
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return NewSocketError(GetSocketError());
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}
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#endif
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