func()

in conn.go [878:907]

• 24 lines of code
• 9 McCabe index (conditional complexity)

func (c *Conn) writeFrame(timeout time.Duration, fr frames.Frame) error {
	// writeFrame into txBuf
	c.txBuf.Reset()
	err := frames.Write(&c.txBuf, fr)
	if err != nil {
		return &ConnError{inner: err}
	}

	// validate the frame isn't exceeding peer's max frame size
	requiredFrameSize := c.txBuf.Len()
	if uint64(requiredFrameSize) > uint64(c.peerMaxFrameSize) {
		return &ConnError{inner: fmt.Errorf("%T frame size %d larger than peer's max frame size %d", fr, requiredFrameSize, c.peerMaxFrameSize)}
	}

	if timeout == 0 {
		_ = c.net.SetWriteDeadline(time.Time{})
	} else if timeout > 0 {
		_ = c.net.SetWriteDeadline(time.Now().Add(timeout))
	}

	// write to network
	n, err := c.net.Write(c.txBuf.Bytes())
	if l := c.txBuf.Len(); n > 0 && n < l && err != nil {
		debug.Log(1, "TX (writeFrame %p): wrote %d bytes less than len %d: %v", c, n, l, err)
	}
	if err != nil {
		err = &ConnError{inner: err}
	}
	return err
}