1 files changed, 121 insertions, 0 deletions
diff --git a/ksim/monitors/snmp/walker.cpp b/ksim/monitors/snmp/walker.cpp
new file mode 100644
index 0000000..593cd04
--- /dev/null
+++ b/ksim/monitors/snmp/walker.cpp
@@ -0,0 +1,121 @@
+/* This file is part of the KDE project
+   Copyright (C) 2003 Simon Hausmann <hausmann@kde.org>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This program 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
+    General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "walker.h"
+
+#include <qapplication.h>
+
+#include <functional>
+#include <algorithm>
+
+using namespace KSim::Snmp;
+
+namespace
+{
+    template <class T>
+    struct Deleter : public std::unary_function<T, void>
+    {
+        void operator()( T arg )
+        { delete arg; }
+    };
+}
+
+static const uint walkerRefresh = 0;
+
+Walker::Walker( const HostConfig &host, const Identifier &startOid, QObject *parent, const char *name )
+    : QObject( parent, name ), m_stop( false ), m_oid( startOid ), m_session( host )
+{
+    m_timerId = startTimer( walkerRefresh );
+    start();
+}
+
+Walker::~Walker()
+{
+    m_stopGuard.lock();
+    m_stop = true;
+    m_stopGuard.unlock();
+
+    if ( QThread::running() )
+        QThread::wait();
+
+    std::for_each( m_results.begin(), m_results.end(), Deleter<Result *>() );
+}
+
+void Walker::run()
+{
+    while ( !m_stop ) {
+        Result *result = new Result;
+
+        result->success = m_session.snmpGetNext( m_oid, result->data, &result->error );
+        result->oid = m_oid;
+
+        // do it here, because it sometimes is slow and can block for a bit
+        if ( result->success ) {
+            result->identifierString = result->oid.toString();
+            result->dataString = result->data.toString();
+        }
+
+        m_stopGuard.lock();
+        if ( !m_stop )
+            m_stop = !result->success;
+        m_stopGuard.unlock();
+
+        m_resultGuard.lock();
+        m_results << result;
+        m_resultGuard.unlock();
+    }
+
+    // cause finished signal to be emitted
+    QApplication::postEvent( this, new QCustomEvent( QEvent::User ) );
+}
+
+void Walker::timerEvent( QTimerEvent *ev )
+{
+    if ( ev->timerId() != m_timerId )
+        return;
+
+    Result *result = 0;
+
+    m_resultGuard.lock();
+    if ( !m_results.isEmpty() ) {
+        result = m_results.first();
+        m_results.remove( m_results.begin() );
+    }
+    m_resultGuard.unlock();
+
+    if ( result ) {
+        emit resultReady( *result );
+
+        delete result;
+    }
+
+    if ( !QThread::running() && !result ) {
+        killTimer( m_timerId );
+        m_timerId = 0;
+    }
+}
+
+void Walker::customEvent( QCustomEvent * )
+{
+    emit finished();
+}
+
+#include "walker.moc"
+/* vim: et sw=4 ts=4
+ */