lotus/storage/post.go

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package storage
import (
"context"
"encoding/base64"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-lotus/api"
"github.com/filecoin-project/go-lotus/build"
"github.com/filecoin-project/go-lotus/chain/actors"
"github.com/filecoin-project/go-lotus/chain/types"
)
func (m *Miner) beginPosting(ctx context.Context) {
ts, err := m.api.ChainHead(context.TODO())
if err != nil {
log.Error(err)
return
}
ppe, err := m.api.StateMinerProvingPeriodEnd(ctx, m.maddr, ts)
if err != nil {
log.Errorf("failed to get proving period end for miner: %s", err)
return
}
if ppe == 0 {
log.Errorf("Proving period end == 0")
return
}
m.schedLk.Lock()
if m.schedPost > 0 {
log.Warnf("PoSts already running %d", m.schedPost)
m.schedLk.Unlock()
return
}
// height needs to be +1, because otherwise we'd be trying to schedule PoSt
// at current block height
m.schedPost, _ = actors.ProvingPeriodEnd(ppe, ts.Height()+1)
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m.schedLk.Unlock()
log.Infof("Scheduling post at height %d", ppe-build.PoSTChallangeTime)
err = m.events.ChainAt(m.computePost(m.schedPost), func(ts *types.TipSet) error { // Revert
// TODO: Cancel post
log.Errorf("TODO: Cancel PoSt, re-run")
return nil
}, PoStConfidence, ppe-build.PoSTChallangeTime)
if err != nil {
// TODO: This is BAD, figure something out
log.Errorf("scheduling PoSt failed: %s", err)
return
}
}
func (m *Miner) scheduleNextPost(ppe uint64) {
ts, err := m.api.ChainHead(context.TODO())
if err != nil {
log.Error(err)
// TODO: retry
return
}
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headPPE, provingPeriod := actors.ProvingPeriodEnd(ppe, ts.Height())
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if headPPE > ppe {
log.Warn("PoSt computation running behind chain")
ppe = headPPE
}
m.schedLk.Lock()
if m.schedPost >= ppe {
// this probably can't happen
log.Error("PoSt already scheduled: %d >= %d", m.schedPost, ppe)
m.schedLk.Unlock()
return
}
m.schedPost = ppe
m.schedLk.Unlock()
log.Infof("Scheduling post at height %d (head=%d; ppe=%d, period=%d)", ppe-build.PoSTChallangeTime, ts.Height(), ppe, provingPeriod)
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err = m.events.ChainAt(m.computePost(ppe), func(ts *types.TipSet) error { // Revert
// TODO: Cancel post
log.Errorf("TODO: Cancel PoSt, re-run")
return nil
}, PoStConfidence, ppe-build.PoSTChallangeTime)
if err != nil {
// TODO: This is BAD, figure something out
log.Errorf("scheduling PoSt failed: %s", err)
return
}
}
func (m *Miner) computePost(ppe uint64) func(ts *types.TipSet, curH uint64) error {
return func(ts *types.TipSet, curH uint64) error {
ctx := context.TODO()
sset, err := m.api.StateMinerProvingSet(ctx, m.maddr, ts)
if err != nil {
return xerrors.Errorf("failed to get proving set for miner: %w", err)
}
r, err := m.api.ChainGetRandomness(ctx, ts, nil, int(int64(ts.Height())-int64(ppe)+int64(build.PoSTChallangeTime))) // TODO: review: check math
if err != nil {
return xerrors.Errorf("failed to get chain randomness for post (ts=%d; ppe=%d): %w", ts.Height(), ppe, err)
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}
log.Infof("running PoSt computation, rh=%d r=%s, ppe=%d, h=%d", int64(ts.Height())-int64(ppe)+int64(build.PoSTChallangeTime), base64.StdEncoding.EncodeToString(r), ppe, ts.Height())
var faults []uint64
proof, err := m.secst.RunPoSt(ctx, sset, r, faults)
if err != nil {
return xerrors.Errorf("running post failed: %w", err)
}
log.Infof("submitting PoSt pLen=%d", len(proof))
params := &actors.SubmitPoStParams{
Proof: proof,
DoneSet: types.BitFieldFromSet(sectorIdList(sset)),
}
enc, aerr := actors.SerializeParams(params)
if aerr != nil {
return xerrors.Errorf("could not serialize submit post parameters: %w", err)
}
msg := &types.Message{
To: m.maddr,
From: m.worker,
Method: actors.MAMethods.SubmitPoSt,
Params: enc,
Value: types.NewInt(1000), // currently hard-coded late fee in actor, returned if not late
GasLimit: types.NewInt(100000 /* i dont know help */),
GasPrice: types.NewInt(1),
}
log.Info("mpush")
smsg, err := m.api.MpoolPushMessage(ctx, msg)
if err != nil {
return xerrors.Errorf("pushing message to mpool: %w", err)
}
log.Infof("Waiting for post %s to appear on chain", smsg.Cid())
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// make sure it succeeds...
rec, err := m.api.ChainWaitMsg(ctx, smsg.Cid())
if err != nil {
return err
}
if rec.Receipt.ExitCode != 0 {
log.Warnf("SubmitPoSt EXIT: %d", rec.Receipt.ExitCode)
// TODO: Do something
}
m.scheduleNextPost(ppe + build.ProvingPeriodDuration)
return nil
}
}
func sectorIdList(si []*api.SectorInfo) []uint64 {
out := make([]uint64, len(si))
for i, s := range si {
out[i] = s.SectorID
}
return out
}