telegraf/plugins/system/ps/net/net_windows.go

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2015-04-04 00:22:31 +00:00
// +build windows
package net
import (
"net"
"os"
"syscall"
"unsafe"
common "github.com/shirou/gopsutil/common"
)
var (
modiphlpapi = syscall.NewLazyDLL("iphlpapi.dll")
procGetExtendedTcpTable = modiphlpapi.NewProc("GetExtendedTcpTable")
procGetExtendedUdpTable = modiphlpapi.NewProc("GetExtendedUdpTable")
)
const (
TCPTableBasicListener = iota
TCPTableBasicConnections
TCPTableBasicAll
TCPTableOwnerPIDListener
TCPTableOwnerPIDConnections
TCPTableOwnerPIDAll
TCPTableOwnerModuleListener
TCPTableOwnerModuleConnections
TCPTableOwnerModuleAll
)
func NetIOCounters(pernic bool) ([]NetIOCountersStat, error) {
ifs, err := net.Interfaces()
if err != nil {
return nil, err
}
ai, err := getAdapterList()
if err != nil {
return nil, err
}
var ret []NetIOCountersStat
for _, ifi := range ifs {
name := ifi.Name
for ; ai != nil; ai = ai.Next {
name = common.BytePtrToString(&ai.Description[0])
c := NetIOCountersStat{
Name: name,
}
row := syscall.MibIfRow{Index: ai.Index}
e := syscall.GetIfEntry(&row)
if e != nil {
return nil, os.NewSyscallError("GetIfEntry", e)
}
c.BytesSent = uint64(row.OutOctets)
c.BytesRecv = uint64(row.InOctets)
c.PacketsSent = uint64(row.OutUcastPkts)
c.PacketsRecv = uint64(row.InUcastPkts)
c.Errin = uint64(row.InErrors)
c.Errout = uint64(row.OutErrors)
c.Dropin = uint64(row.InDiscards)
c.Dropout = uint64(row.OutDiscards)
ret = append(ret, c)
}
}
if pernic == false {
return getNetIOCountersAll(ret)
}
return ret, nil
}
// Return a list of network connections opened by a process
func NetConnections(kind string) ([]NetConnectionStat, error) {
var ret []NetConnectionStat
return ret, common.NotImplementedError
}
// borrowed from src/pkg/net/interface_windows.go
func getAdapterList() (*syscall.IpAdapterInfo, error) {
b := make([]byte, 1000)
l := uint32(len(b))
a := (*syscall.IpAdapterInfo)(unsafe.Pointer(&b[0]))
err := syscall.GetAdaptersInfo(a, &l)
if err == syscall.ERROR_BUFFER_OVERFLOW {
b = make([]byte, l)
a = (*syscall.IpAdapterInfo)(unsafe.Pointer(&b[0]))
err = syscall.GetAdaptersInfo(a, &l)
}
if err != nil {
return nil, os.NewSyscallError("GetAdaptersInfo", err)
}
return a, nil
}