lotus/chain/messagepool/repub.go
2020-08-12 09:18:04 +03:00

108 lines
2.4 KiB
Go

package messagepool
import (
"context"
"sort"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/types"
)
const repubMsgLimit = 30
func (mp *MessagePool) republishPendingMessages() error {
mp.curTsLk.Lock()
ts := mp.curTs
baseFee, err := mp.api.ChainComputeBaseFee(context.TODO(), ts)
if err != nil {
mp.curTsLk.Unlock()
return xerrors.Errorf("computing basefee: %w", err)
}
pending := make(map[address.Address]map[uint64]*types.SignedMessage)
mp.lk.Lock()
for actor := range mp.localAddrs {
mset, ok := mp.pending[actor]
if !ok {
continue
}
if len(mset.msgs) == 0 {
continue
}
// we need to copy this while holding the lock to avoid races with concurrent modification
pend := make(map[uint64]*types.SignedMessage, len(mset.msgs))
for nonce, m := range mset.msgs {
pend[nonce] = m
}
pending[actor] = pend
}
mp.lk.Unlock()
mp.curTsLk.Unlock()
if len(pending) == 0 {
return nil
}
var chains []*msgChain
for actor, mset := range pending {
next := mp.createMessageChains(actor, mset, baseFee, ts)
chains = append(chains, next...)
}
if len(chains) == 0 {
return nil
}
sort.Slice(chains, func(i, j int) bool {
return chains[i].Before(chains[j])
})
// we don't republish negative performing chains; this is an error that will be screamed
// at the user
if chains[0].gasPerf < 0 {
return xerrors.Errorf("skipping republish: all message chains have negative gas performance; best gas performance: %f", chains[0].gasPerf)
}
gasLimit := int64(build.BlockGasLimit)
var msgs []*types.SignedMessage
for _, chain := range chains {
// we can exceed this if we have picked (some) longer chain already
if len(msgs) > repubMsgLimit {
break
}
// we don't republish negative performing chains, as they won't be included in
// a block anyway
if chain.gasPerf < 0 {
break
}
// we don't exceed the block gasLimit in our republish endeavor
if chain.gasLimit > gasLimit {
break
}
gasLimit -= chain.gasLimit
msgs = append(msgs, chain.msgs...)
}
log.Infof("republishing %d messages", len(msgs))
for _, m := range msgs {
mb, err := m.Serialize()
if err != nil {
return xerrors.Errorf("cannot serialize message: %w", err)
}
err = mp.api.PubSubPublish(build.MessagesTopic(mp.netName), mb)
if err != nil {
return xerrors.Errorf("cannot publish: %w", err)
}
}
return nil
}