53 lines
1012 B
Go
53 lines
1012 B
Go
package proto
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import (
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"encoding/json"
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"errors"
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"net"
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"time"
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)
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func Command(target string, request interface{}, response interface{}) error {
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conn, err := net.Dial("tcp", target)
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if err != nil {
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return err
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}
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defer conn.Close()
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if err = json.NewEncoder(conn).Encode(request); err != nil {
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return err
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}
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return json.NewDecoder(conn).Decode(response)
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}
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func CommandTimeout(target string, request interface{}, response interface{}, timeout time.Duration) error {
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responseChan := make(chan interface{})
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errorChan := make(chan error)
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go func() {
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conn, err := net.DialTimeout("tcp", target, timeout)
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if err != nil {
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errorChan <- err
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return
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}
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defer conn.Close()
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if err = json.NewEncoder(conn).Encode(request); err != nil {
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errorChan <- err
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return
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}
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responseChan <- json.NewDecoder(conn).Decode(response)
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}()
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select {
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case response = <-responseChan:
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return nil
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case err := <-errorChan:
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return err
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case <-time.After(timeout):
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return errors.New("timout")
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}
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}
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