92 lines
2.0 KiB
Go
92 lines
2.0 KiB
Go
// +build linux
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package net
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import (
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"strconv"
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"strings"
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common "github.com/shirou/gopsutil/common"
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)
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// NetIOCounters returnes network I/O statistics for every network
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// interface installed on the system. If pernic argument is false,
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// return only sum of all information (which name is 'all'). If true,
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// every network interface installed on the system is returned
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// separately.
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func NetIOCounters(pernic bool) ([]NetIOCountersStat, error) {
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filename := common.GetEnv("HOST_PROC", "/proc") + "/net/dev"
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lines, err := common.ReadLines(filename)
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if err != nil {
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return nil, err
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}
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statlen := len(lines) - 1
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ret := make([]NetIOCountersStat, 0, statlen)
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for _, line := range lines[2:] {
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parts := strings.SplitN(line, ":", 2)
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if len(parts) != 2 {
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continue
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}
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interfaceName := strings.TrimSpace(parts[0])
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if interfaceName == "" {
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continue
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}
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fields := strings.Fields(strings.TrimSpace(parts[1]))
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bytesRecv, err := strconv.ParseUint(fields[0], 10, 64)
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if err != nil {
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return ret, err
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}
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packetsRecv, err := strconv.ParseUint(fields[1], 10, 64)
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if err != nil {
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return ret, err
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}
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errIn, err := strconv.ParseUint(fields[2], 10, 64)
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if err != nil {
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return ret, err
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}
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dropIn, err := strconv.ParseUint(fields[3], 10, 64)
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if err != nil {
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return ret, err
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}
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bytesSent, err := strconv.ParseUint(fields[8], 10, 64)
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if err != nil {
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return ret, err
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}
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packetsSent, err := strconv.ParseUint(fields[9], 10, 64)
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if err != nil {
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return ret, err
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}
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errOut, err := strconv.ParseUint(fields[10], 10, 64)
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if err != nil {
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return ret, err
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}
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dropOut, err := strconv.ParseUint(fields[13], 10, 64)
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if err != nil {
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return ret, err
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}
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nic := NetIOCountersStat{
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Name: interfaceName,
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BytesRecv: bytesRecv,
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PacketsRecv: packetsRecv,
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Errin: errIn,
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Dropin: dropIn,
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BytesSent: bytesSent,
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PacketsSent: packetsSent,
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Errout: errOut,
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Dropout: dropOut,
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}
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ret = append(ret, nic)
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}
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if pernic == false {
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return getNetIOCountersAll(ret)
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}
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return ret, nil
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}
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