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27 lines
552 B
27 lines
552 B
2 years ago
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package themis
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import (
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"bytes"
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"fmt"
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"os"
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"strconv"
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"time"
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)
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// Uptime returns the time elapsed since the start of the current process ID.
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func Uptime() (time.Duration, error) {
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raw, err := os.ReadFile("/proc/uptime")
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if err != nil {
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return 0, fmt.Errorf("failed to read uptime from OS: %w", err)
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}
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i := bytes.IndexRune(raw, ' ')
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up, err := strconv.ParseFloat(string(raw[:i]), 64)
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if err != nil {
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return 0, fmt.Errorf("failed to parse uptime from OS: %w", err)
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}
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return time.Duration(int(up*1000) * int(time.Millisecond)), nil
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}
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