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|
package main
import (
"fmt"
"github.com/grafov/bcast"
"net"
"os"
)
const (
LISTEN = "localhost:3334"
)
type becoming struct {
Clients *bcast.Group
}
func (b *becoming) Become() {
b.Clients = bcast.NewGroup()
go b.Clients.Broadcast(0)
l, err := net.Listen("tcp", LISTEN)
if err != nil {
fmt.Println("Error listening: ", err.Error())
os.Exit(1)
}
defer l.Close()
for {
conn, err := l.Accept()
if err != nil {
fmt.Println("Error accepting: ", err.Error())
} else {
go newClient(conn, b)
}
}
}
func clientReader(conn net.Conn, ch chan []byte) {
buf := make([]byte, 256)
for {
_, err := conn.Read(buf)
if err != nil {
fmt.Println("Error reading: ", err.Error())
return
}
ch <- buf
}
}
func busReader(member *bcast.Member, ch chan []byte) {
for {
ch <- member.Recv().([]byte)
}
}
func newClient(conn net.Conn, b *becoming) {
defer conn.Close()
member := b.Clients.Join()
defer b.Clients.Leave(member)
in := make(chan []byte)
out := make(chan []byte)
go clientReader(conn, in)
go busReader(member, out)
for {
select {
case msg := <-in:
member.Send(msg)
case msg := <-out:
conn.Write(msg)
}
}
}
var Become becoming
|
