libcruft-util/net/except.hpp

80 lines
2.3 KiB
C++

/*
* This file is part of libgim.
*
* libgim 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 3 of the License, or (at your option) any later
* version.
*
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2011 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __NET_EXCEPT_HPP
#define __NET_EXCEPT_HPP
#if defined(HAVE_WINSOCK2_H)
#include <winsock2.h>
#else
#include <cerrno>
#include <cstring>
#endif
#include <string>
#include <stdexcept>
#include "../annotations.hpp"
//-----------------------------------------------------------------------------
namespace net {
class error : public std::runtime_error {
protected:
error (const std::string &);
error (int code);
static std::string
code_to_string (int code);
public:
/// Throw an error corresponding the a given code. Code must be a valid error code,
/// not success otherwise the application will (at best) abort.
static void
throw_code (int code) terminal;
/// Throw an error corresponding to the most recent error condition. This will check
/// the current error condition in a platform agnostic manner, and pass on to
/// throw_code(int). This should be used whenever an error has been detected, rather
/// than the more normal try_code(errno) due to Windows error reporting quirks.
static void
throw_code (void) terminal;
static void
try_code (int code);
static void
try_code (void);
static int
last_code (void);
};
template <int CODE>
class error_code : public error {
public:
error_code ();
int code (void) const;
};
}
#endif // __NET_EXCEPT_HPP