Initial QSfera import

Server/vendor/github.com/segmentio/kafka-go/discard.go

@@ -0,0 +1,38 @@
+package kafka
+
+import "bufio"
+
+func discardN(r *bufio.Reader, sz int, n int) (int, error) {
+	var err error
+	if n <= sz {
+		n, err = r.Discard(n)
+	} else {
+		n, err = r.Discard(sz)
+		if err == nil {
+			err = errShortRead
+		}
+	}
+	return sz - n, err
+}
+
+func discardInt32(r *bufio.Reader, sz int) (int, error) {
+	return discardN(r, sz, 4)
+}
+
+func discardString(r *bufio.Reader, sz int) (int, error) {
+	return readStringWith(r, sz, func(r *bufio.Reader, sz int, n int) (int, error) {
+		if n < 0 {
+			return sz, nil
+		}
+		return discardN(r, sz, n)
+	})
+}
+
+func discardBytes(r *bufio.Reader, sz int) (int, error) {
+	return readBytesWith(r, sz, func(r *bufio.Reader, sz int, n int) (int, error) {
+		if n < 0 {
+			return sz, nil
+		}
+		return discardN(r, sz, n)
+	})
+}