mirror of
https://github.com/Icinga/icinga2.git
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118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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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 License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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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 *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "icinga/service.h"
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#include "base/dynamictype.h"
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#include "base/objectlock.h"
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#include "base/logger_fwd.h"
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#include "base/timer.h"
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#include "base/utility.h"
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#include "base/convert.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
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#include <boost/foreach.hpp>
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using namespace icinga;
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#define FLAPPING_INTERVAL (30 * 60)
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double Service::GetFlappingCurrent(void) const
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{
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if (m_FlappingPositive + m_FlappingNegative <= 0)
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return 0;
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return 100 * m_FlappingPositive / (m_FlappingPositive + m_FlappingNegative);
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}
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double Service::GetFlappingThreshold(void) const
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{
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if (m_FlappingThreshold.IsEmpty())
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return 30;
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else
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return m_FlappingThreshold;
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}
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bool Service::GetEnableFlapping(void) const
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{
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if (m_EnableFlapping.IsEmpty())
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return true;
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else
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return m_EnableFlapping;
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}
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void Service::SetEnableFlapping(bool enabled, const String& authority)
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{
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m_EnableFlapping = enabled;
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OnFlappingChanged(GetSelf(), enabled ? FlappingEnabled : FlappingDisabled);
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Utility::QueueAsyncCallback(bind(boost::ref(OnEnableFlappingChanged), GetSelf(), enabled, authority));
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}
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void Service::UpdateFlappingStatus(bool stateChange)
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{
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double ts, now;
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long positive, negative;
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now = Utility::GetTime();
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if (m_FlappingLastChange.IsEmpty()) {
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ts = now;
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positive = 0;
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negative = 0;
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} else {
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ts = m_FlappingLastChange;
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positive = m_FlappingPositive;
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negative = m_FlappingNegative;
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}
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double diff = now - ts;
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if (positive + negative > FLAPPING_INTERVAL) {
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double pct = (positive + negative - FLAPPING_INTERVAL) / FLAPPING_INTERVAL;
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positive -= pct * positive;
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negative -= pct * negative;
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}
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if (stateChange)
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positive += diff;
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else
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negative += diff;
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if (positive < 0)
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positive = 0;
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if (negative < 0)
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negative = 0;
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Log(LogDebug, "icinga", "Flapping counter for '" + GetName() + "' is positive=" + Convert::ToString(positive) + ", negative=" + Convert::ToString(negative));
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m_FlappingPositive = positive;
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m_FlappingNegative = negative;
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m_FlappingLastChange = now;
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}
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bool Service::IsFlapping(void) const
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{
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if (!GetEnableFlapping())
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return false;
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else
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return GetFlappingCurrent() > GetFlappingThreshold();
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}
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