open-nomad/vendor/github.com/DataDog/datadog-go/statsd/udp.go

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package statsd
import (
"errors"
"net"
"time"
)
// udpWriter is an internal class wrapping around management of UDP connection
type udpWriter struct {
conn net.Conn
}
// New returns a pointer to a new udpWriter given an addr in the format "hostname:port".
func newUdpWriter(addr string) (*udpWriter, error) {
udpAddr, err := net.ResolveUDPAddr("udp", addr)
if err != nil {
return nil, err
}
conn, err := net.DialUDP("udp", nil, udpAddr)
if err != nil {
return nil, err
}
writer := &udpWriter{conn: conn}
return writer, nil
}
// SetWriteTimeout is not needed for UDP, returns error
func (w *udpWriter) SetWriteTimeout(d time.Duration) error {
return errors.New("SetWriteTimeout: not supported for UDP connections")
}
// Write data to the UDP connection with no error handling
func (w *udpWriter) Write(data []byte) error {
_, e := w.conn.Write(data)
return e
}
func (w *udpWriter) Close() error {
return w.conn.Close()
}