95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// eoSIGContinue.h
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// (c) EEAAX 1996 - GeNeura Team, 1998 - Maarten Keijzer 2000
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/*
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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Marc.Schoenauer@polytechnique.fr
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mak@dhi.dk
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Johann Dréo <nojhan@gmail.com>
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Caner Candan <caner@candan.fr>
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*/
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//-----------------------------------------------------------------------------
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// the same thing can probably be done in MS environement, but I hoave no way
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// to test it so at the moment it is commented out when in MSVC
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#ifndef eoSIGContinue_h
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#define eoSIGContinue_h
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#include <signal.h>
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#include <eoContinue.h>
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/** @addtogroup Continuators
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* @{
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*/
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extern bool existSIGContinue;
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extern bool call_func;
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void set_bool(int)
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{
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call_func = true;
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}
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/**
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A continuator that stops if a given signal is received during the execution
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*/
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template< class EOT>
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class eoSIGContinue: public eoContinue<EOT>
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{
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public:
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/// Ctor : installs the signal handler
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eoSIGContinue(int sig, sighandler_t fct)
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: _sig(sig), _fct(fct)
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{
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// First checks that no other eoSIGContinue does exist
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if (existSIGContinue)
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throw std::runtime_error("A signal handler is already defined!\n");
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#ifndef _WINDOWS
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#ifdef SIGQUIT
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::signal( sig, set_bool );
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existSIGContinue = true;
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#endif
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#endif
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}
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/** Returns false when the signal has been typed in reached */
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virtual bool operator() ( const eoPop<EOT>& _vEO )
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{
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if (call_func)
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{
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_fct(_sig);
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call_func = false;
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}
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return true;
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}
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virtual std::string className(void) const { return "eoSIGContinue"; }
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private:
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int _sig;
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sighandler_t _fct;
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};
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/** @} */
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#endif
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// of MSVC comment-out
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