本文整理汇总了Golang中bosun/org/_third_party/golang.org/x/net/icmp.PacketConn.WriteTo方法的典型用法代码示例。如果您正苦于以下问题：Golang PacketConn.WriteTo方法的具体用法？Golang PacketConn.WriteTo怎么用？Golang PacketConn.WriteTo使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类bosun/org/_third_party/golang.org/x/net/icmp.PacketConn的用法示例。
在下文中一共展示了PacketConn.WriteTo方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: sendICMP
func (p *Pinger) sendICMP(conn, conn6 *icmp.PacketConn) (map[string]*net.IPAddr, error) {
p.debugln("sendICMP(): Start")
p.mu.Lock()
p.id = rand.Intn(0xffff)
p.seq = rand.Intn(0xffff)
p.mu.Unlock()
queue := make(map[string]*net.IPAddr)
wg := new(sync.WaitGroup)
for key, addr := range p.addrs {
var typ icmp.Type
var cn *icmp.PacketConn
if isIPv4(addr.IP) {
typ = ipv4.ICMPTypeEcho
cn = conn
} else if isIPv6(addr.IP) {
typ = ipv6.ICMPTypeEchoRequest
cn = conn6
} else {
continue
}
if cn == nil {
continue
}
t := timeToBytes(time.Now())
if p.Size-TimeSliceLength != 0 {
t = append(t, byteSliceOfSize(p.Size-TimeSliceLength)...)
}
p.mu.Lock()
bytes, err := (&icmp.Message{
Type: typ, Code: 0,
Body: &icmp.Echo{
ID: p.id, Seq: p.seq,
Data: t,
},
}).Marshal(nil)
p.mu.Unlock()
if err != nil {
wg.Wait()
return queue, err
}
queue[key] = addr
var dst net.Addr = addr
if p.network == "udp" {
dst = &net.UDPAddr{IP: addr.IP, Zone: addr.Zone}
}
p.debugln("sendICMP(): Invoke goroutine")
wg.Add(1)
go func(conn *icmp.PacketConn, ra net.Addr, b []byte) {
for {
if _, err := conn.WriteTo(bytes, ra); err != nil {
if neterr, ok := err.(*net.OpError); ok {
if neterr.Err == syscall.ENOBUFS {
continue
}
}
}
break
}
p.debugln("sendICMP(): WriteTo End")
wg.Done()
}(cn, dst, bytes)
}
wg.Wait()
p.debugln("sendICMP(): End")
return queue, nil
}