120 lines
2.6 KiB
C++
120 lines
2.6 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 2010, 2017
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* Danny Robson <danny@nerdcruft.net>
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*/
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#include "except.hpp"
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#include "../debug.hpp"
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using util::win32::error;
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///////////////////////////////////////////////////////////////////////////////
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error::error (DWORD _code):
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runtime_error (code_string (_code)),
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m_code (_code)
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{
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CHECK_NEQ (m_code, (DWORD)ERROR_SUCCESS);
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}
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//-----------------------------------------------------------------------------
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error::error (void):
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error (last_code ())
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{ ; }
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///////////////////////////////////////////////////////////////////////////////
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DWORD
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error::code (void) const
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{
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return m_code;
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}
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//-----------------------------------------------------------------------------
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DWORD
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error::last_code (void)
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{
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return GetLastError ();
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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error::try_code (void)
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{
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try_code (last_code ());
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}
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//-----------------------------------------------------------------------------
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void
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error::try_code (DWORD id)
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{
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if (__builtin_expect (id != ERROR_SUCCESS, false))
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throw_code (id);
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}
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//-----------------------------------------------------------------------------
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void
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error::throw_code (void)
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{
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throw_code (last_code ());
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}
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//-----------------------------------------------------------------------------
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void
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error::throw_code (DWORD code)
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{
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CHECK_NEQ (code, (DWORD)ERROR_SUCCESS);
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throw error (code);
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}
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//-----------------------------------------------------------------------------
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std::string
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error::code_string (void)
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{
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return code_string (last_code ());
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}
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//-----------------------------------------------------------------------------
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std::string
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error::code_string (DWORD code)
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{
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char message[256];
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auto res = FormatMessage (
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FORMAT_MESSAGE_FROM_SYSTEM,
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NULL,
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code,
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MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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message,
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std::size (message),
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NULL
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);
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if (res == 0) {
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error::throw_code ();
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}
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return std::string (message, message + res);
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}
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