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62 lines
1.2 KiB

package binary
import (
. "github.com/tendermint/tendermint/common"
"io"
)
const (
ByteSliceChunk = 1024
)
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
}
var buf, tmpBuf []byte
// read one ByteSliceChunk at a time and append
for i := 0; i*ByteSliceChunk < length; i++ {
tmpBuf = make([]byte, MinInt(ByteSliceChunk, length-i*ByteSliceChunk))
ReadFull(tmpBuf, r, n, err)
if *err != nil {
return nil
}
buf = append(buf, tmpBuf...)
}
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
}
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
}