mirror of https://github.com/Icinga/icinga2.git
88 lines
1.7 KiB
C++
88 lines
1.7 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
|
|
|
|
#include "icinga/checkable.hpp"
|
|
#include "icinga/icingaapplication.hpp"
|
|
#include "base/utility.hpp"
|
|
|
|
using namespace icinga;
|
|
|
|
template<typename T>
|
|
struct Bitset
|
|
{
|
|
public:
|
|
Bitset(T value)
|
|
: m_Data(value)
|
|
{ }
|
|
|
|
void Modify(int index, bool bit)
|
|
{
|
|
if (bit)
|
|
m_Data |= 1 << index;
|
|
else
|
|
m_Data &= ~(1 << index);
|
|
}
|
|
|
|
bool Get(int index) const
|
|
{
|
|
return m_Data & (1 << index);
|
|
}
|
|
|
|
T GetValue() const
|
|
{
|
|
return m_Data;
|
|
}
|
|
|
|
private:
|
|
T m_Data{0};
|
|
};
|
|
|
|
void Checkable::UpdateFlappingStatus(bool stateChange)
|
|
{
|
|
Bitset<unsigned long> stateChangeBuf = GetFlappingBuffer();
|
|
int oldestIndex = GetFlappingIndex();
|
|
|
|
stateChangeBuf.Modify(oldestIndex, stateChange);
|
|
oldestIndex = (oldestIndex + 1) % 20;
|
|
|
|
double stateChanges = 0;
|
|
|
|
/* Iterate over our state array and compute a weighted total */
|
|
for (int i = 0; i < 20; i++) {
|
|
if (stateChangeBuf.Get((oldestIndex + i) % 20))
|
|
stateChanges += 0.8 + (0.02 * i);
|
|
}
|
|
|
|
double flappingValue = 100.0 * stateChanges / 20.0;
|
|
|
|
bool flapping;
|
|
|
|
if (GetFlapping())
|
|
flapping = flappingValue > GetFlappingThresholdLow();
|
|
else
|
|
flapping = flappingValue > GetFlappingThresholdHigh();
|
|
|
|
SetFlappingBuffer(stateChangeBuf.GetValue());
|
|
SetFlappingIndex(oldestIndex);
|
|
SetFlappingCurrent(flappingValue);
|
|
|
|
if (flapping != GetFlapping()) {
|
|
SetFlapping(flapping, true);
|
|
|
|
double ee = GetLastCheckResult()->GetExecutionEnd();
|
|
|
|
if (GetEnableFlapping() && IcingaApplication::GetInstance()->GetEnableFlapping()) {
|
|
OnFlappingChange(this, ee);
|
|
}
|
|
|
|
SetFlappingLastChange(ee);
|
|
}
|
|
}
|
|
|
|
bool Checkable::IsFlapping() const
|
|
{
|
|
if (!GetEnableFlapping() || !IcingaApplication::GetInstance()->GetEnableFlapping())
|
|
return false;
|
|
else
|
|
return GetFlapping();
|
|
}
|