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62 lines
1.3 KiB
62 lines
1.3 KiB
package binary
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import (
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. "github.com/tendermint/tendermint/common"
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"io"
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)
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const (
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ByteSliceChunk = 1024
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)
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func WriteByteSlice(bz []byte, w io.Writer, n *int64, err *error) {
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WriteUvarint(uint(len(bz)), w, n, err)
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WriteTo(bz, w, n, err)
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}
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func ReadByteSlice(r io.Reader, n *int64, err *error) []byte {
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length := int(ReadUvarint(r, n, err))
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if *err != nil {
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return nil
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}
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var buf, tmpBuf []byte
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// read one ByteSliceChunk at a time and append
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for i := 0; i*ByteSliceChunk < length; i++ {
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tmpBuf = make([]byte, MinInt(ByteSliceChunk, length-i*ByteSliceChunk))
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ReadFull(tmpBuf, r, n, err)
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if *err != nil {
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return nil
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}
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buf = append(buf, tmpBuf...)
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}
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return buf
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}
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//-----------------------------------------------------------------------------
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func WriteByteSlices(bzz [][]byte, w io.Writer, n *int64, err *error) {
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WriteUvarint(uint(len(bzz)), w, n, err)
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for _, bz := range bzz {
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WriteByteSlice(bz, w, n, err)
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if *err != nil {
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return
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}
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}
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}
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func ReadByteSlices(r io.Reader, n *int64, err *error) [][]byte {
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length := int(ReadUvarint(r, n, err))
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if *err != nil {
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return nil
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}
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bzz := make([][]byte, length)
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for i := 0; i < length; i++ {
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bz := ReadByteSlice(r, n, err)
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if *err != nil {
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return nil
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}
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bzz[i] = bz
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}
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return bzz
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}
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