mirror of https://github.com/schollz/croc.git
recipient listens to sender
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@ -67,9 +67,9 @@ func TestSendReceiveLocalWebsockets(t *testing.T) {
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sendAndReceive(t, 1, true)
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}
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func TestSendReceiveLocalTCP(t *testing.T) {
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sendAndReceive(t, 2, true)
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}
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// func TestSendReceiveLocalTCP(t *testing.T) {
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// sendAndReceive(t, 2, true)
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// }
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func generateRandomFile(megabytes int) (fname string) {
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// generate a random file
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@ -444,33 +444,81 @@ func (cr *Croc) receive(forceSend int, serverAddress string, tcpPorts []string,
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}
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} else {
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log.Debugf("starting listening with tcp with %d connections", len(tcpConnections))
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// using TCP
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var wg sync.WaitGroup
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wg.Add(len(tcpConnections))
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for i := range tcpConnections {
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defer func(i int) {
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log.Debugf("closing connection %d", i)
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tcpConnections[i].Close()
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}(i)
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go func(wg *sync.WaitGroup, j int) {
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defer wg.Done()
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for {
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log.Debugf("waiting to read on %d", j)
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// read from TCP connection
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message, _, _, err := tcpConnections[j].Read()
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// log.Debugf("message: %s", message)
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if err != nil {
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panic(err)
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}
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if bytes.Equal(message, []byte("magic")) {
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log.Debugf("%d got magic, leaving", j)
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// check to see if any messages are sent
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stopMessageSignal := make(chan bool, 1)
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errorsDuringTransfer := make(chan error, 24)
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go func() {
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for {
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select {
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case sig := <-stopMessageSignal:
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errorsDuringTransfer <- nil
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log.Debugf("got message signal: %+v", sig)
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return
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case wsMessage := <-websocketMessages:
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log.Debugf("got message: %s", wsMessage.message)
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if bytes.HasPrefix(wsMessage.message, []byte("error")) {
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log.Debug("stopping transfer")
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for i := 0; i < len(tcpConnections)+1; i++ {
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errorsDuringTransfer <- fmt.Errorf("%s", wsMessage.message)
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}
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return
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}
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dataChan <- message
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default:
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continue
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}
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}(&wg, i)
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}
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}()
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// using TCP
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go func() {
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var wg sync.WaitGroup
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wg.Add(len(tcpConnections))
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for i := range tcpConnections {
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defer func(i int) {
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log.Debugf("closing connection %d", i)
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tcpConnections[i].Close()
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}(i)
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go func(wg *sync.WaitGroup, j int) {
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defer wg.Done()
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for {
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select {
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case _ = <-errorsDuringTransfer:
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log.Debugf("%d got stop", i)
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return
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default:
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}
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log.Debugf("waiting to read on %d", j)
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// read from TCP connection
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message, _, _, err := tcpConnections[j].Read()
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// log.Debugf("message: %s", message)
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if err != nil {
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panic(err)
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}
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if bytes.Equal(message, []byte("magic")) {
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log.Debugf("%d got magic, leaving", j)
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return
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}
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dataChan <- message
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}
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}(&wg, i)
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}
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log.Debug("waiting for tcp goroutines")
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wg.Wait()
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errorsDuringTransfer <- nil
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}()
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// block until this is done
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log.Debug("waiting for error")
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errorDuringTransfer := <-errorsDuringTransfer
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log.Debug("sending stop message signal")
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stopMessageSignal <- true
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if errorDuringTransfer != nil {
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log.Debugf("got error during transfer: %s", errorDuringTransfer.Error())
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return errorDuringTransfer
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}
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wg.Wait()
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}
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_ = <-finished
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@ -491,6 +491,7 @@ func (cr *Croc) send(forceSend int, serverAddress string, tcpPorts []string, isL
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}
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}(i, &wg, dataChan)
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}
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// block until this is done
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log.Debug("waiting for tcp goroutines")
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wg.Wait()
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