package fastcgi

type streamReader struct {
	c   *FCGIClient
	buf []byte
}

func (w *streamReader) Read(p []byte) (n int, err error) {

	if len(p) > 0 {
		if len(w.buf) == 0 {
			rec := &Record{}
			w.buf, err = rec.read(w.c.rwc)
			if err != nil {
				return
			}
		}

		n = len(p)
		if n > len(w.buf) {
			n = len(w.buf)
		}
		copy(p, w.buf[:n])
		w.buf = w.buf[n:]
	}

	return
}