54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package main
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import (
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"log"
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"net"
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"time"
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)
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func main() {
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listenerAddr, err := net.ResolveTCPAddr("tcp4", ":6699")
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if err != nil {
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log.Fatalf("could not resolve listenAddr: %v", err)
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}
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listener, err := net.ListenTCP("tcp", listenerAddr)
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if err != nil {
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log.Fatalf("could not listen on address '%s': %v", listenerAddr.String(), err)
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}
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for {
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conn, err := listener.Accept()
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if err != nil {
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log.Printf("failed to accept new incoming connection: %v", err) // if logging facility has latency this will block
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continue
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}
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go connHandler(conn) // branch off into goroutine so we're not blocking
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}
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}
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func connHandler(conn net.Conn) {
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log.Printf("accepted new connection from: %s", conn.RemoteAddr().String())
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conn.SetReadDeadline(time.Now().Add(time.Second))
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for {
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buf := make([]byte, 128)
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bytesRead, err := conn.Read(buf)
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if err == nil && bytesRead > 0 {
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log.Printf("Incoming message over socket '%s': %s", conn.RemoteAddr().String(), string(buf))
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}
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_, err = conn.Write([]byte("1"))
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if err != nil {
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log.Printf("failed writing to connection '%s': %v", conn.RemoteAddr().String(), err)
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conn.Close()
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break
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}
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time.Sleep(time.Second)
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}
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}
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