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server.go
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server.go
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package udp
import (
"github.com/flylib/gonet"
"net"
"sync"
)
type server struct {
gonet.PeerCommon
ln *net.UDPConn
option
sync.RWMutex
remotes map[string]uint64
}
func NewServer(ctx *gonet.Context, options ...Option) gonet.IServer {
s := &server{
option: option{
mtu: gonet.MTU,
},
remotes: map[string]uint64{},
}
for _, f := range options {
f(&s.option)
}
s.WithContext(ctx)
return s
}
func (s *server) Listen(addr string) error {
udpAddr, err := net.ResolveUDPAddr(string(gonet.UDP), addr)
if err != nil {
return err
}
s.ln, err = net.ListenUDP(string(gonet.UDP), udpAddr)
if err != nil {
return err
}
s.SetAddr(addr)
var buf = make([]byte, s.option.mtu)
for {
n, remoteAddr, err := s.ln.ReadFromUDP(buf)
if err != nil {
s.ILogger.Errorf("#udp.read failed(%v) %v \n", s.ln.RemoteAddr(), err.Error())
return err
}
var ses *session
if sid, exit := s.remotes[remoteAddr.String()]; exit {
is, _ := s.Context.GetSession(sid)
ses, _ = is.(*session)
} else {
ses = newSession(s.Context, s.ln, remoteAddr)
s.remotes[remoteAddr.String()] = ses.ID()
}
msg, _, err := s.Context.UnPackage(ses, buf[:n])
if err != nil {
s.ILogger.Errorf("session_%v msg parser error,reason is %v \n", ses.ID(), err)
continue
}
s.Context.PushGlobalMessageQueue(msg)
}
return nil
}
func (s *server) Close() error {
return s.ln.Close()
}