本文整理汇总了Golang中code/google/com/p/go/net/ipv4.PacketConn类的典型用法代码示例。如果您正苦于以下问题：Golang PacketConn类的具体用法？Golang PacketConn怎么用？Golang PacketConn使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了PacketConn类的3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: benchmarkReadWriteIPv4UDP
func benchmarkReadWriteIPv4UDP(b *testing.B, p *ipv4.PacketConn, wb, rb []byte, dst net.Addr, ifi *net.Interface) {
cm := ipv4.ControlMessage{TTL: 1}
if ifi != nil {
cm.IfIndex = ifi.Index
}
if _, err := p.WriteTo(wb, &cm, dst); err != nil {
b.Fatalf("ipv4.PacketConn.WriteTo failed: %v", err)
}
if _, _, _, err := p.ReadFrom(rb); err != nil {
b.Fatalf("ipv4.PacketConn.ReadFrom failed: %v", err)
}
}示例2: writeThenReadPayload
// writeThenReadPayload transmits IPv4 datagram payloads to the
// loopback address or interface and captures the loopback'd datagram
// payloads.
func writeThenReadPayload(t *testing.T, i int, c *ipv4.PacketConn, wb []byte, dst net.Addr) []byte {
rb := make([]byte, 1500)
c.SetTOS(i + 1)
var ip net.IP
switch v := dst.(type) {
case *net.UDPAddr:
ip = v.IP
case *net.IPAddr:
ip = v.IP
}
if ip.IsMulticast() {
c.SetMulticastTTL(i + 1)
} else {
c.SetTTL(i + 1)
}
c.SetDeadline(time.Now().Add(100 * time.Millisecond))
if _, err := c.WriteTo(wb, nil, dst); err != nil {
t.Fatalf("ipv4.PacketConn.WriteTo failed: %v", err)
}
n, cm, _, err := c.ReadFrom(rb)
if err != nil {
t.Fatalf("ipv4.PacketConn.ReadFrom failed: %v", err)
}
t.Logf("rcvd cmsg: %v", cm)
return rb[:n]
}示例3: runPayloadTransponder
// runPayloadTransponder transmits IPv4 datagram payloads to the
// loopback address or interface and captures the loopback'd datagram
// payloads.
func runPayloadTransponder(t *testing.T, c *ipv4.PacketConn, wb []byte, dst net.Addr) {
cf := ipv4.FlagTTL | ipv4.FlagDst | ipv4.FlagInterface
rb := make([]byte, 1500)
for i, toggle := range []bool{true, false, true} {
if err := c.SetControlMessage(cf, toggle); err != nil {
t.Fatalf("ipv4.PacketConn.SetControlMessage failed: %v", err)
}
c.SetTOS(i + 1)
var ip net.IP
switch v := dst.(type) {
case *net.UDPAddr:
ip = v.IP
case *net.IPAddr:
ip = v.IP
}
if ip.IsMulticast() {
c.SetMulticastTTL(i + 1)
} else {
c.SetTTL(i + 1)
}
c.SetDeadline(time.Now().Add(100 * time.Millisecond))
if _, err := c.Write(wb, nil, dst); err != nil {
t.Fatalf("ipv4.PacketConn.Write failed: %v", err)
}
_, cm, _, err := c.Read(rb)
if err != nil {
t.Fatalf("ipv4.PacketConn.Read failed: %v", err)
}
t.Logf("rcvd cmsg: %v", cm)
}
}