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38 lines
606 B
Go
38 lines
606 B
Go
package dockeragent
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import (
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"bufio"
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"errors"
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"os"
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"strconv"
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"strings"
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)
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func readProcUptime() (float64, error) {
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f, err := os.Open("/proc/uptime")
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if err != nil {
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return 0, err
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}
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defer f.Close()
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scanner := bufio.NewScanner(f)
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if !scanner.Scan() {
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if err := scanner.Err(); err != nil {
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return 0, err
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}
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return 0, errors.New("empty /proc/uptime")
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}
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fields := strings.Fields(scanner.Text())
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if len(fields) == 0 {
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return 0, errors.New("invalid /proc/uptime contents")
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}
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value, err := strconv.ParseFloat(fields[0], 64)
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if err != nil {
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return 0, err
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}
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return value, nil
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}
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