75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __NET_EXCEPT_HPP
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#define __NET_EXCEPT_HPP
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#if defined(HAVE_WINSOCK2_H)
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#include <winsock2.h>
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#else
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#include <cerrno>
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#include <cstring>
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#endif
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#include <string>
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#include <stdexcept>
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//-----------------------------------------------------------------------------
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namespace net {
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class error : public std::runtime_error {
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protected:
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error (const std::string &);
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error (int code);
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static std::string
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code_to_string (int code);
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public:
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/// Throw an error corresponding the a given code. Code must be a valid error code,
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/// not success otherwise the application will (at best) abort.
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static void
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throw_code [[noreturn]] (int code);
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/// Throw an error corresponding to the most recent error condition. This will check
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/// the current error condition in a platform agnostic manner, and pass on to
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/// throw_code(int). This should be used whenever an error has been detected, rather
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/// than the more normal try_code(errno) due to Windows error reporting quirks.
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static void
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throw_code [[noreturn]] (void);
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static void
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try_code (int code);
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static void
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try_code (void);
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static int
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last_code (void);
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};
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template <int CODE>
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class error_code : public error {
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public:
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error_code ();
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int code (void) const;
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};
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}
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#endif // __NET_EXCEPT_HPP
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