38 lines
728 B
Go
38 lines
728 B
Go
// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
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// All rights reserved. Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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package main
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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 memorySize() (uint64, error) {
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f, err := os.Open("/proc/meminfo")
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if err != nil {
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return 0, err
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}
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s := bufio.NewScanner(f)
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if !s.Scan() {
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return 0, errors.New("/proc/meminfo parse error 1")
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}
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l := s.Text()
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fs := strings.Fields(l)
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if len(fs) != 3 || fs[2] != "kB" {
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return 0, errors.New("/proc/meminfo parse error 2")
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}
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kb, err := strconv.ParseUint(fs[1], 10, 64)
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if err != nil {
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return 0, err
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}
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return kb * 1024, nil
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}
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