syncthing/cmd/syncthing/memsize_linux.go
Jakob Borg 32425c5561 MPLv2
2015-03-17 16:02:27 +01:00

40 lines
771 B
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package main
import (
"bufio"
"errors"
"os"
"strconv"
"strings"
)
func memorySize() (int64, error) {
f, err := os.Open("/proc/meminfo")
if err != nil {
return 0, err
}
s := bufio.NewScanner(f)
if !s.Scan() {
return 0, errors.New("/proc/meminfo parse error 1")
}
l := s.Text()
fs := strings.Fields(l)
if len(fs) != 3 || fs[2] != "kB" {
return 0, errors.New("/proc/meminfo parse error 2")
}
kb, err := strconv.ParseInt(fs[1], 10, 64)
if err != nil {
return 0, err
}
return kb * 1024, nil
}