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120 lines
2.9 KiB
120 lines
2.9 KiB
/* This file is part of the KDE project
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Copyright (C) 2003 Simon Hausmann <hausmann@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU 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 program 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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "walker.h"
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#include <tqapplication.h>
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#include <functional>
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#include <algorithm>
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using namespace KSim::Snmp;
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namespace
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{
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template <class T>
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struct Deleter : public std::function<void(T)>
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{
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void operator()( T arg )
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{ delete arg; }
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};
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}
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static const uint walkerRefresh = 0;
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Walker::Walker( const HostConfig &host, const Identifier &startOid, TQObject *parent, const char *name )
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: TQObject( parent, name ), m_stop( false ), m_oid( startOid ), m_session( host )
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{
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m_timerId = startTimer( walkerRefresh );
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start();
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}
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Walker::~Walker()
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{
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m_stopGuard.lock();
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m_stop = true;
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m_stopGuard.unlock();
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if ( TQThread::running() )
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TQThread::wait();
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std::for_each( m_results.begin(), m_results.end(), Deleter<Result *>() );
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}
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void Walker::run()
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{
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while ( !m_stop ) {
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Result *result = new Result;
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result->success = m_session.snmpGetNext( m_oid, result->data, &result->error );
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result->oid = m_oid;
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// do it here, because it sometimes is slow and can block for a bit
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if ( result->success ) {
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result->identifierString = result->oid.toString();
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result->dataString = result->data.toString();
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}
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m_stopGuard.lock();
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if ( !m_stop )
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m_stop = !result->success;
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m_stopGuard.unlock();
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m_resultGuard.lock();
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m_results << result;
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m_resultGuard.unlock();
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}
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// cause finished signal to be emitted
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TQApplication::postEvent( this, new TQCustomEvent( TQEvent::User ) );
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}
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void Walker::timerEvent( TQTimerEvent *ev )
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{
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if ( ev->timerId() != m_timerId )
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return;
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Result *result = 0;
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m_resultGuard.lock();
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if ( !m_results.isEmpty() ) {
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result = m_results.first();
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m_results.remove( m_results.begin() );
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}
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m_resultGuard.unlock();
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if ( result ) {
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emit resultReady( *result );
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delete result;
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}
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if ( !TQThread::running() && !result ) {
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killTimer( m_timerId );
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m_timerId = 0;
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}
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}
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void Walker::customEvent( TQCustomEvent * )
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{
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emit finished();
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}
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#include "walker.moc"
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