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optimize bitfield intersect

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This commit is contained in:
zgfzgf 2020-11-28 21:07:14 +08:00
parent c016e34dbc
commit f4adf03ce5
1 changed files with 5 additions and 17 deletions
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22
cmd/lotus-shed/bitfield.go
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@ -202,21 +202,15 @@ var bitFieldDecodeCmd = &cli.Command{
var bitFieldIntersectCmd = &cli.Command{ var bitFieldIntersectCmd = &cli.Command{
Name: "intersect", Name: "intersect",
Usage: "Two bitfields intersect",
Description: "intersect 2 bitfields and print the resulting bitfield as base64", Description: "intersect 2 bitfields and print the resulting bitfield as base64",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "enc",
Value: "base64",
Usage: "specify input encoding to parse",
},
},
Action: func(cctx *cli.Context) error { Action: func(cctx *cli.Context) error {
b, err := decode(cctx, 1) a, err := decode(cctx, 0)
if err != nil { if err != nil {
return err return err
} }
a, err := decode(cctx, 0) b, err := decode(cctx, 1)
if err != nil { if err != nil {
return err return err
} }
@ -226,17 +220,11 @@ var bitFieldIntersectCmd = &cli.Command{
return xerrors.Errorf("intersect: %w", err) return xerrors.Errorf("intersect: %w", err)
} }
s, err := o.RunIterator() str, err := encode(cctx, o)
if err != nil { if err != nil {
return err return err
} }
fmt.Println(str)
bytes, err := rlepluslazy.EncodeRuns(s, []byte{})
if err != nil {
return err
}
fmt.Println(base64.StdEncoding.EncodeToString(bytes))
return nil return nil
}, },