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IOError.cpp

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00001 /***************************************************************************
00002  *   Copyright (C) 2004 by Ilya A. Volynets-Evenbakh                       *
00003  *   ilya@total-knowledge.com                                              *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU General Public License as published by  *
00007  *   the Free Software Foundation; either version 2 of the License, or     *
00008  *   (at your option) any later version.                                   *
00009  *                                                                         *
00010  *   This program is distributed in the hope that it will be useful,       *
00011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
00013  *   GNU General Public License for more details.                          *
00014  *                                                                         *
00015  *   You should have received a copy of the GNU General Public License     *
00016  *   along with this program; if not, write to the                         *
00017  *   Free Software Foundation, Inc.,                                       *
00018  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
00019  ***************************************************************************/
00020 #include <servlet/IOError.h>
00021 #include <string.h>
00022 
00023 namespace servlet {
00024 
00025 IOError::IOError()
00026     : std::ios_base::failure(geterrmsg())
00027     , Traceable(errbuf)
00028     , m_errno(errno)
00029 {
00030 }
00031 IOError::IOError(const std::string& msg)
00032     : std::ios_base::failure((msg+": "+geterrmsg()).c_str())
00033     , Traceable(msg+": "+errbuf)
00034     , m_errno(errno)
00035 {
00036 }
00037 
00038 
00039 IOError::~IOError() throw()
00040 {
00041 }
00042 
00043 const char* IOError::geterrmsg() throw()
00044 {
00045     const char* err = ::strerror_r(errno, errbuf, sizeof(errbuf));
00046     if(err!=errbuf) // GNU strerror_r may return errbuf or some other, static string
00047         ::strncpy(errbuf, err, sizeof(errbuf));
00048     return errbuf;
00049 }
00050 
00051 }

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