forked from masanorih/go-ipmsg
/
eventhandler.go
65 lines (58 loc) · 1.58 KB
/
eventhandler.go
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package ipmsg
import "fmt"
type EvFunc func(cd *ClientData, ipmsg *IPMSG) error
type EventHandler struct {
String string
Handlers map[Command]EvFunc
Debug bool
}
func NewEventHandler() *EventHandler {
ev := &EventHandler{
Handlers: make(map[Command]EvFunc),
}
return ev
}
func (ev *EventHandler) Regist(cmd Command, evfunc EvFunc) {
handlers := ev.Handlers
handlers[cmd] = evfunc
}
func (ev *EventHandler) Run(cd *ClientData, ipmsg *IPMSG) error {
if ev.Debug {
ev.RunDebug(cd)
}
cmd := cd.Command.Mode()
evfunc := ev.Handlers[cmd]
if evfunc == nil {
// just do nothing when handler is undefined
return nil
} else {
return (evfunc(cd, ipmsg))
}
}
func (ev *EventHandler) RunDebug(cd *ClientData) {
cmdstr := cd.Command.Mode().String()
fmt.Println("EventHandler.RunDebug cmdstr=", cmdstr)
fmt.Println("EventHandler.RunDebug key=", cd.Key())
}
//func (ev EventHandler) Run(cd *ClientData, ipmsg *IPMSG) error {
// cmdstr := cd.Command.String()
// v := reflect.ValueOf(&ev)
// method := v.MethodByName(cmdstr)
// if !method.IsValid() {
// err := fmt.Errorf("method for Command(%v) not defined", cmdstr)
// return err
// }
// in := []reflect.Value{reflect.ValueOf(cd), reflect.ValueOf(ipmsg)}
// err := method.Call(in)[0].Interface()
// // XXX only works if you sure about the return value is always type(error)
// if err == nil {
// return nil
// }
// return err.(error)
// //reflect.ValueOf(&ev).MethodByName(cmdstr).Call(in)
//}
//
//func (ev *EventHandler) BR_ENTRY(cd *ClientData, ipmsg *IPMSG) error {
// ipmsg.SendMSG(cd.Addr, ipmsg.Myinfo(), ANSENTRY)
// return nil
//}