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35 lines
658 B
Go
35 lines
658 B
Go
//go:build linux
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// Package zfs provides functions to read ZFS statistics.
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package zfs
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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func ARCSize() (uint64, error) {
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file, err := os.Open("/proc/spl/kstat/zfs/arcstats")
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if err != nil {
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return 0, err
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "size") {
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fields := strings.Fields(line)
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if len(fields) < 3 {
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return 0, fmt.Errorf("unexpected arcstats size format: %s", line)
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}
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return strconv.ParseUint(fields[2], 10, 64)
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}
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}
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return 0, fmt.Errorf("size field not found in arcstats")
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}
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