ITWorx Pulse release export
bd774932d5
Public source validation / validate (push) Failing after 3m8s
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package hostcollect
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import (
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"fmt"
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"math"
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"strings"
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"github.com/itworx/pulse/internal/host"
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)
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// parseLoadAverage reads the three load figures from /proc/loadavg. The remaining
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// fields (runnable/total tasks and last PID) are deliberately ignored: the domain has
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// no place for them and a process count from a PID namespace would be misleading.
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func parseLoadAverage(data []byte) (host.RawLoad, error) {
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fields := strings.Fields(string(data))
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if len(fields) < 3 {
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return host.RawLoad{}, errBadLoadAverage
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}
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values := [3]float64{}
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for index := 0; index < 3; index++ {
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value, ok := parseFloat(fields[index])
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if !ok || value < 0 || math.IsNaN(value) || math.IsInf(value, 0) {
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return host.RawLoad{}, errBadLoadAverage
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}
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values[index] = value
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}
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return host.RawLoad{One: values[0], Five: values[1], Fifteen: values[2]}, nil
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}
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func (c *Collector) loadAverage() (host.RawLoad, error) {
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data, err := readLimited(c.procPath("loadavg"), maxProcessFileBytes)
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if err != nil {
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return host.RawLoad{}, fmt.Errorf("hostcollect: read loadavg: %w", err)
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}
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return parseLoadAverage(data)
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}
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