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braodcast.go
47 lines (40 loc) · 778 Bytes
/
braodcast.go
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package govee
import (
"context"
"net"
"time"
)
type Broadcaster struct {
interval time.Duration
address string
message []byte
}
func NewBroadcaster(interval time.Duration) *Broadcaster {
return &Broadcaster{
interval: interval,
address: "239.255.255.250:4001",
message: []byte(`{"msg":{"cmd":"scan","data":{"account_topic":"reserve"}}}`),
}
}
func (b Broadcaster) Run(ctx context.Context) error {
addr, err := net.ResolveUDPAddr("udp4", b.address)
if err != nil {
return err
}
conn, err := net.DialUDP("udp4", nil, addr)
if err != nil {
return err
}
ticker := time.NewTicker(b.interval)
for {
select {
case <-ctx.Done():
return nil
case <-ticker.C:
_, err = conn.Write(b.message)
if err != nil {
return err
}
}
}
}