63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package data
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import "math"
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// Wireless struct
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type Wireless struct {
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TxPower24 uint32 `json:"txpower24,omitempty"`
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Channel24 uint32 `json:"channel24,omitempty"`
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TxPower5 uint32 `json:"txpower5,omitempty"`
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Channel5 uint32 `json:"channel5,omitempty"`
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}
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// WirelessStatistics struct
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type WirelessStatistics []*WirelessAirtime
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// WirelessAirtime struct
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type WirelessAirtime struct {
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ChanUtil float32 // Channel utilization
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RxUtil float32 // Receive utilization
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TxUtil float32 // Transmit utilization
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ActiveTime uint64 `json:"active"`
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BusyTime uint64 `json:"busy"`
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RxTime uint64 `json:"rx"`
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TxTime uint64 `json:"tx"`
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Noise uint32 `json:"noise"`
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Frequency uint32 `json:"frequency"`
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}
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// FrequencyName returns 11g or 11a
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func (airtime WirelessAirtime) FrequencyName() string {
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if airtime.Frequency < 5000 {
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return "11g"
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}
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return "11a"
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}
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// SetUtilization calculates the utilization values in regard to the previous values
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func (current WirelessStatistics) SetUtilization(previous WirelessStatistics) {
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for _, c := range current {
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for _, p := range previous {
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// Same frequency and time passed?
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if c.Frequency == p.Frequency && p.ActiveTime < c.ActiveTime {
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c.setUtilization(p)
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}
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}
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}
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}
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// setUtilization updates the utilization values in regard to the previous values
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func (airtime *WirelessAirtime) setUtilization(prev *WirelessAirtime) {
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// Calculate deltas
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active := float64(airtime.ActiveTime) - float64(prev.ActiveTime)
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busy := float64(airtime.BusyTime) - float64(prev.BusyTime)
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rx := float64(airtime.RxTime) - float64(prev.RxTime)
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tx := float64(airtime.TxTime) - float64(prev.TxTime)
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// Update utilizations
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airtime.ChanUtil = float32(math.Min(100, 100*busy/active))
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airtime.RxUtil = float32(math.Min(100, 100*rx/active))
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airtime.TxUtil = float32(math.Min(100, 100*tx/active))
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}
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