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|
package soundbox
import (
"context"
"errors"
"io"
"net"
"time"
)
const bufferSize = 20
const writeTimeout = 1 * time.Second
func streamContext(ctx context.Context, r io.Reader, targets []net.HardwareAddr) error {
conns := make([]net.Conn, 0)
for _, target := range targets {
conn, err := dialContext(ctx, target)
if err != nil {
return err
}
conns = append(conns, conn)
}
defer func() {
for _, conn := range conns {
conn.Close()
}
}()
for {
buffer := make([]byte, bufferSize)
i, readErr := r.Read(buffer)
for _, conn := range conns {
conn.SetDeadline(time.Now().Add(writeTimeout))
_, writeErr := conn.Write(buffer[:i])
if writeErr != nil {
return writeErr
}
}
if readErr != nil {
if errors.Is(readErr, io.EOF) {
break
} else {
return readErr
}
}
}
return nil
}
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