127 lines
3.1 KiB
Go
127 lines
3.1 KiB
Go
package main
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import (
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"encoding/binary"
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"fmt"
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"math/rand"
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"github.com/filecoin-project/lotus/chain/types"
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lcli "github.com/filecoin-project/lotus/cli"
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builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
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"github.com/urfave/cli/v2"
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"golang.org/x/xerrors"
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)
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var electionCmd = &cli.Command{
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Name: "election",
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Usage: "Commands related to leader election",
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Subcommands: []*cli.Command{
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electionRunDummy,
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electionEstimate,
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},
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}
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var electionRunDummy = &cli.Command{
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Name: "run-dummy",
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Usage: "Runs dummy elections with given power",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "network-power",
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Usage: "network storage power",
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},
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&cli.StringFlag{
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Name: "miner-power",
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Usage: "miner storage power",
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},
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&cli.Uint64Flag{
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Name: "seed",
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Usage: "rand number",
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Value: 0,
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},
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},
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Action: func(cctx *cli.Context) error {
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ctx := lcli.ReqContext(cctx)
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minerPow, err := types.BigFromString(cctx.String("miner-power"))
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if err != nil {
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return xerrors.Errorf("decoding miner-power: %w", err)
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}
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networkPow, err := types.BigFromString(cctx.String("network-power"))
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if err != nil {
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return xerrors.Errorf("decoding network-power: %w", err)
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}
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ep := &types.ElectionProof{}
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ep.VRFProof = make([]byte, 32)
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seed := cctx.Uint64("seed")
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if seed == 0 {
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seed = rand.Uint64()
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}
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binary.BigEndian.PutUint64(ep.VRFProof, seed)
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i := uint64(0)
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for {
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if ctx.Err() != nil {
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return ctx.Err()
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}
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binary.BigEndian.PutUint64(ep.VRFProof[8:], i)
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j := ep.ComputeWinCount(minerPow, networkPow)
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_, err := fmt.Printf("%t, %d\n", j != 0, j)
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if err != nil {
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return err
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}
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i++
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}
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},
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}
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var electionEstimate = &cli.Command{
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Name: "estimate",
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Usage: "Estimate elections with given power",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "network-power",
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Usage: "network storage power",
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},
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&cli.StringFlag{
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Name: "miner-power",
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Usage: "miner storage power",
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},
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&cli.Uint64Flag{
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Name: "seed",
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Usage: "rand number",
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Value: 0,
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},
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},
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Action: func(cctx *cli.Context) error {
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minerPow, err := types.BigFromString(cctx.String("miner-power"))
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if err != nil {
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return xerrors.Errorf("decoding miner-power: %w", err)
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}
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networkPow, err := types.BigFromString(cctx.String("network-power"))
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if err != nil {
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return xerrors.Errorf("decoding network-power: %w", err)
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}
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ep := &types.ElectionProof{}
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ep.VRFProof = make([]byte, 32)
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seed := cctx.Uint64("seed")
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if seed == 0 {
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seed = rand.Uint64()
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}
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binary.BigEndian.PutUint64(ep.VRFProof, seed)
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winYear := int64(0)
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for i := 0; i < builtin2.EpochsInYear; i++ {
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binary.BigEndian.PutUint64(ep.VRFProof[8:], uint64(i))
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j := ep.ComputeWinCount(minerPow, networkPow)
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winYear += j
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}
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winHour := winYear * builtin2.EpochsInHour / builtin2.EpochsInYear
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winDay := winYear * builtin2.EpochsInDay / builtin2.EpochsInYear
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winMonth := winYear * builtin2.EpochsInDay * 30 / builtin2.EpochsInYear
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fmt.Println("winInHour, winInDay, winInMonth, winInYear")
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fmt.Printf("%d, %d, %d, %d\n", winHour, winDay, winMonth, winYear)
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return nil
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},
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}
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