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26 lines
866 B
26 lines
866 B
package needle
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import (
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"bytes"
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. "github.com/seaweedfs/seaweedfs/weed/storage/types"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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func writeNeedleV1(n *Needle, offset uint64, bytesBuffer *bytes.Buffer) (size Size, actualSize int64, err error) {
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bytesBuffer.Reset()
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header := make([]byte, NeedleHeaderSize)
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CookieToBytes(header[0:CookieSize], n.Cookie)
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NeedleIdToBytes(header[CookieSize:CookieSize+NeedleIdSize], n.Id)
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n.Size = Size(len(n.Data))
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SizeToBytes(header[CookieSize+NeedleIdSize:CookieSize+NeedleIdSize+SizeSize], n.Size)
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size = n.Size
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actualSize = NeedleHeaderSize + int64(n.Size)
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bytesBuffer.Write(header)
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bytesBuffer.Write(n.Data)
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padding := PaddingLength(n.Size, Version1)
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util.Uint32toBytes(header[0:NeedleChecksumSize], uint32(n.Checksum))
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bytesBuffer.Write(header[0 : NeedleChecksumSize+padding])
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return size, actualSize, nil
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}
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