64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package rcli
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import (
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"io"
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"io/ioutil"
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"net"
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"log"
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"fmt"
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"encoding/json"
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"bufio"
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)
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func CallTCP(addr string, args ...string) (*net.TCPConn, error) {
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cmd, err := json.Marshal(args)
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if err != nil {
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return nil, err
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}
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conn, err := net.Dial("tcp", addr)
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if err != nil {
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return nil, err
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}
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if _, err := fmt.Fprintln(conn, string(cmd)); err != nil {
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return nil, err
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}
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return conn.(*net.TCPConn), nil
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}
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func ListenAndServeTCP(addr string, service Service) error {
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listener, err := net.Listen("tcp", addr)
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if err != nil {
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return err
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}
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log.Printf("Listening for RCLI/TCP on %s\n", addr)
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defer listener.Close()
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for {
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if conn, err := listener.Accept(); err != nil {
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return err
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} else {
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go func() {
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if err := Serve(conn, service); err != nil {
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log.Printf("Error: " + err.Error() + "\n")
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fmt.Fprintf(conn, "Error: " + err.Error() + "\n")
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}
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conn.Close()
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}()
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}
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}
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return nil
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}
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func Serve(conn io.ReadWriter, service Service) error {
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r := bufio.NewReader(conn)
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var args []string
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if line, err := r.ReadString('\n'); err != nil {
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return err
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} else if err := json.Unmarshal([]byte(line), &args); err != nil {
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return err
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} else {
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return call(service, ioutil.NopCloser(r), conn, args...)
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}
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return nil
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}
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