lotus/cmd/lotus-chainwatch/processor/mpool.go
2020-08-27 11:47:53 -07:00

101 lines
1.8 KiB
Go

package processor
import (
"context"
"time"
"golang.org/x/xerrors"
"github.com/ipfs/go-cid"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/types"
)
func (p *Processor) subMpool(ctx context.Context) {
sub, err := p.node.MpoolSub(ctx)
if err != nil {
return
}
for {
var updates []api.MpoolUpdate
select {
case update := <-sub:
updates = append(updates, update)
case <-ctx.Done():
return
}
loop:
for {
select {
case update := <-sub:
updates = append(updates, update)
case <-time.After(10 * time.Millisecond):
break loop
}
}
msgs := map[cid.Cid]*types.Message{}
for _, v := range updates {
if v.Type != api.MpoolAdd {
continue
}
msgs[v.Message.Message.Cid()] = &v.Message.Message
}
err := p.storeMessages(msgs)
if err != nil {
log.Error(err)
}
if err := p.storeMpoolInclusions(updates); err != nil {
log.Error(err)
}
}
}
func (p *Processor) storeMpoolInclusions(msgs []api.MpoolUpdate) error {
tx, err := p.db.Begin()
if err != nil {
return err
}
if _, err := tx.Exec(`
create temp table mi (like mpool_messages excluding constraints) on commit drop;
`); err != nil {
return xerrors.Errorf("prep temp: %w", err)
}
stmt, err := tx.Prepare(`copy mi (msg, add_ts) from stdin `)
if err != nil {
return err
}
for _, msg := range msgs {
if msg.Type != api.MpoolAdd {
continue
}
if _, err := stmt.Exec(
msg.Message.Message.Cid().String(),
time.Now().Unix(),
); err != nil {
return err
}
}
if err := stmt.Close(); err != nil {
return err
}
if _, err := tx.Exec(`insert into mpool_messages select * from mi on conflict do nothing `); err != nil {
return xerrors.Errorf("actor put: %w", err)
}
return tx.Commit()
}