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SegmentationViolationHandler.cpp

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/*******************************************************************************
 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
 * Kopernikusstr. 16, D-52074 Aachen, Germany
 * phone: ++49-241-80-27910,
 * fax: ++49-241-80-22242
 * email: info@openwns.org
 * www: http://www.openwns.org
 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
 * openWNS 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/

#include <WNS/simulator/SegmentationViolationHandler.hpp>
#include <WNS/Backtrace.hpp>

#include <iostream>
#include <cstdlib>

using namespace wns::simulator;

SegmentationViolationHandler::SegmentationViolationHandler(
    bool attachDebugger,
    const std::string& debuggerName,
    const std::string& programName) :
    SignalHandlerCallback(),
    attachDebugger_(attachDebugger),
    debuggerName_(debuggerName),
    programName_(programName)
{
}

void
SegmentationViolationHandler::doCall()
{
    std::cerr << "openWNS: caught signal 'SIGSEGV' (segmentation violation)\n";

    Backtrace backtrace;
    backtrace.snapshot();
    std::cerr << backtrace;

    if (attachDebugger_)
    {
        int pid = getpid();

        std::cerr << "Attaching " << debuggerName_ << " to process ID " << pid << "\n";

        std::stringstream debuggerCall;
        debuggerCall << debuggerName_ << " " << programName_ << " " << pid << std::ends;
        system(debuggerCall.str().c_str());
    }

    exit(1);
}

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