基础的TCP底层框架，暴露三个事件回调接口
package main
import (
"log"
"tttt/gotcp"
)
type Handler struct {
server gotcp.Server
}
func (s *Handler) OnStart(session gotcp.Session) error {
log.Printf("OnStart,sessionId:%v", session.SessionId())
return nil
}
func (s *Handler) OnData(session gotcp.Session, data []byte) error {
log.Printf("OnData,sessionId:%v,data:%s", session.SessionId(), string(data))
if session.SessionId() == gotcp.SessionId(2) {
s.server.Stop()
}
return nil
}
func (s *Handler) OnClose(session gotcp.Session) {
log.Printf("OnClose,sessionId:%v", session.SessionId())
}
func main() {
var handler Handler
var address = "127.0.0.1:9991"
server := gotcp.NewServer(&handler, address)
handler.server = server
log.Printf("listen addr:%v", address)
err := server.Run()
log.Printf("Run err:%v", err)
}