tendermint/binary -> tendermint/wire

wire/byteslice.go

@@ -0,0 +1,68 @@
+package wire
+
+import (
+	"io"
+
+	. "github.com/tendermint/tendermint/common"
+)
+
+func WriteByteSlice(bz []byte, w io.Writer, n *int64, err *error) {
+	WriteVarint(len(bz), w, n, err)
+	WriteTo(bz, w, n, err)
+}
+
+func ReadByteSlice(r io.Reader, n *int64, err *error) []byte {
+	length := ReadVarint(r, n, err)
+	if *err != nil {
+		return nil
+	}
+	if length < 0 {
+		*err = ErrBinaryReadSizeUnderflow
+		return nil
+	}
+	if MaxBinaryReadSize < MaxInt64(int64(length), *n+int64(length)) {
+		*err = ErrBinaryReadSizeOverflow
+		return nil
+	}
+
+	buf := make([]byte, length)
+	ReadFull(buf, r, n, err)
+	return buf
+}
+
+//-----------------------------------------------------------------------------
+
+func WriteByteSlices(bzz [][]byte, w io.Writer, n *int64, err *error) {
+	WriteVarint(len(bzz), w, n, err)
+	for _, bz := range bzz {
+		WriteByteSlice(bz, w, n, err)
+		if *err != nil {
+			return
+		}
+	}
+}
+
+func ReadByteSlices(r io.Reader, n *int64, err *error) [][]byte {
+	length := ReadVarint(r, n, err)
+	if *err != nil {
+		return nil
+	}
+	if length < 0 {
+		*err = ErrBinaryReadSizeUnderflow
+		return nil
+	}
+	if MaxBinaryReadSize < MaxInt64(int64(length), *n+int64(length)) {
+		*err = ErrBinaryReadSizeOverflow
+		return nil
+	}
+
+	bzz := make([][]byte, length)
+	for i := 0; i < length; i++ {
+		bz := ReadByteSlice(r, n, err)
+		if *err != nil {
+			return nil
+		}
+		bzz[i] = bz
+	}
+	return bzz
+}