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support Fallocate on linux

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This commit is contained in:
Chris Lu
2017-01-08 11:01:46 -08:00
parent 7b6837cbc2
commit ed44f12f6d
17 changed files with 104 additions and 33 deletions
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9
weed/storage/needle_read_write.go
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@@ -146,18 +146,13 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, actualSize i
util.Uint32toBytes(header[0:NeedleChecksumSize], n.Checksum.Value())
_, err = w.Write(header[0 : NeedleChecksumSize+padding])
actualSize = NeedleHeaderSize + int64(n.Size) + NeedleChecksumSize + int64(padding)
return n.DataSize, actualSize, err
return n.DataSize, getActualSize(n.Size), err
}
return 0, 0, fmt.Errorf("Unsupported Version! (%d)", version)
}
func ReadNeedleBlob(r *os.File, offset int64, size uint32) (dataSlice []byte, block *Block, err error) {
NeedleWithoutPaddingSize := NeedleHeaderSize + size + NeedleChecksumSize
padding := NeedlePaddingSize - (NeedleWithoutPaddingSize % NeedlePaddingSize)
readSize := NeedleWithoutPaddingSize + padding
return getBytesForFileBlock(r, offset, int(readSize))
return getBytesForFileBlock(r, offset, int(getActualSize(size)))
}
func (n *Needle) ReadData(r *os.File, offset int64, size uint32, version Version) (err error) {