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69 lines
1.3 KiB
69 lines
1.3 KiB
6 years ago
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package gotcp
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import (
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"net"
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"sync"
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"time"
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)
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type Config struct {
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PacketSendChanLimit uint32 // the limit of packet send channel
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PacketReceiveChanLimit uint32 // the limit of packet receive channel
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}
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type Server struct {
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config *Config // server configuration
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callback ConnCallback // message callbacks in connection
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protocol Protocol // customize packet protocol
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exitChan chan struct{} // notify all goroutines to shutdown
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waitGroup *sync.WaitGroup // wait for all goroutines
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}
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// NewServer creates a server
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func NewServer(config *Config, callback ConnCallback, protocol Protocol) *Server {
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return &Server{
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config: config,
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callback: callback,
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protocol: protocol,
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exitChan: make(chan struct{}),
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waitGroup: &sync.WaitGroup{},
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}
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}
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// Start starts service
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func (s *Server) Start(listener *net.TCPListener, acceptTimeout time.Duration) {
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s.waitGroup.Add(1)
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defer func() {
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listener.Close()
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s.waitGroup.Done()
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}()
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for {
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select {
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case <-s.exitChan:
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return
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default:
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}
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listener.SetDeadline(time.Now().Add(acceptTimeout))
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conn, err := listener.AcceptTCP()
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if err != nil {
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continue
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}
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s.waitGroup.Add(1)
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go func() {
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newConn(conn, s).Do()
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s.waitGroup.Done()
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}()
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}
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}
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// Stop stops service
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func (s *Server) Stop() {
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close(s.exitChan)
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s.waitGroup.Wait()
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}
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