PacketSource ReClose Error

[tongchengbin]

I want to create a temporary source and close it after use. The handle needs to be used for a longer period of time, but after I finally close the handle, it results in the source channel being closed multiple times.

func TestSourceClose(t *testing.T) {
	h, err := pcap.OpenLive("\\Device\\NPF_Loopback", 65536, false, time.Second*3)
	assert.Equal(t, nil, err)
	source := gopacket.NewPacketSource(h, nil)
	go func() {
		for _ = range source.Packets() {
			continue
		}
		println("done")

	}()
	close(source.Packets())
	source2 := gopacket.NewPacketSource(h, nil)
	go func() {
		for _ = range source2.Packets() {
			continue
		}
		println("done2")
	}()
	time.Sleep(1 * time.Second)
	h.Close()

}

panic: send on closed channel

goroutine 18 [running]:
github.com/google/gopacket.(*PacketSource).packetsToChannel(0xc0000215c0)
	D:/code/github.com/gopacket/packet.go:820 +0xb3
created by github.com/google/gopacket.(*PacketSource).Packets in goroutine 7
	D:/code/github.com/gopacket/packet.go:861 +0x98
panic: send on closed channel
	panic: close of closed channel

goroutine 8 [running]:
github.com/google/gopacket.(*PacketSource).packetsToChannel(0xc0000215c0)
	D:/code/github.com/gopacket/packet.go:820 +0xb3
created by github.com/google/gopacket.(*PacketSource).Packets in goroutine 6
	D:/code/github.com/gopacket/packet.go:861 +0x98