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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_SOCKET_ERROR_HXX
#define MPD_SOCKET_ERROR_HXX
#include "Compiler.h"
#include "util/Error.hxx" // IWYU pragma: export
#ifdef WIN32
#include <winsock2.h>
typedef DWORD socket_error_t;
#else
#include <errno.h>
typedef int socket_error_t;
#endif
class Domain;
/**
* A #Domain for #Error for socket I/O errors. The code is an errno
* value (or WSAGetLastError() on Windows).
*/
extern const Domain socket_domain;
gcc_pure
static inline socket_error_t
GetSocketError()
{
#ifdef WIN32
return WSAGetLastError();
#else
return errno;
#endif
}
gcc_const
static inline bool
IsSocketErrorAgain(socket_error_t code)
{
#ifdef WIN32
return code == WSAEINPROGRESS;
#else
return code == EAGAIN;
#endif
}
gcc_const
static inline bool
IsSocketErrorInterruped(socket_error_t code)
{
#ifdef WIN32
return code == WSAEINTR;
#else
return code == EINTR;
#endif
}
gcc_const
static inline bool
IsSocketErrorClosed(socket_error_t code)
{
#ifdef WIN32
return code == WSAECONNRESET;
#else
return code == EPIPE || code == ECONNRESET;
#endif
}
/**
* Helper class that formats a socket error message into a
* human-readable string. On Windows, a buffer is necessary for this,
* and this class hosts the buffer.
*/
class SocketErrorMessage {
#ifdef WIN32
char msg[256];
#else
const char *const msg;
#endif
public:
#ifdef WIN32
explicit SocketErrorMessage(socket_error_t code=GetSocketError());
#else
explicit SocketErrorMessage(socket_error_t code=GetSocketError());
#endif
operator const char *() const {
return msg;
}
};
static inline void
SetSocketError(Error &error, socket_error_t code)
{
const SocketErrorMessage msg(code);
error.Set(socket_domain, code, msg);
}
static inline void
SetSocketError(Error &error)
{
SetSocketError(error, GetSocketError());
}
gcc_const
static inline Error
NewSocketError(socket_error_t code)
{
Error error;
SetSocketError(error, code);
return error;
}
gcc_pure
static inline Error
NewSocketError()
{
return NewSocketError(GetSocketError());
}
#endif
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