72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
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package network
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import (
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"fmt"
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"io"
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"log"
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"net"
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)
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func listenTCP(s *Server, port string) error {
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ln, err := net.Listen("tcp", port)
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if err != nil {
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return err
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}
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for {
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conn, err := ln.Accept()
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if err != nil {
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return err
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}
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go handleConnection(s, conn)
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}
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}
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func connectToSeeds(s *Server, addrs []string) {
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fmt.Println(len(addrs))
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for _, addr := range addrs {
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go func(addr string) {
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conn, err := net.Dial("tcp", addr)
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if err != nil {
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log.Printf("failed to connect to remote node %s: %s", addr, err)
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if conn != nil {
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conn.Close()
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}
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return
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}
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go handleConnection(s, conn)
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}(addr)
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}
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}
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func handleConnection(s *Server, conn net.Conn) {
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peer := NewPeer(conn)
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s.register <- peer
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// remove the peer from connected peers and cleanup the connection.
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defer func() {
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s.unregister <- peer
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conn.Close()
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}()
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// Start a goroutine that will handle all writes to the registered peer.
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go peer.writeLoop()
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// Read from the connection and decode it into an RPCMessage and
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// tell the server there is message available for proccesing.
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for {
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msg := &Message{}
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if err := msg.decode(conn); err != nil {
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// remote connection probably closed.
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if err == io.EOF {
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s.logger.Printf("conn read error: %s", err)
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break
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}
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// remove this node on any decode errors.
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s.logger.Printf("RPC :: decode error %s", err)
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break
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}
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s.message <- messageTuple{peer, msg}
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}
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}
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