lotus/chain/events/utils.go
2019-11-20 18:00:05 +01:00

42 lines
1.1 KiB
Go

package events
import (
"context"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/chain/types"
)
func (e *calledEvents) CheckMsg(ctx context.Context, msg *types.Message, hnd CalledHandler) CheckFunc {
return func(ts *types.TipSet) (done bool, more bool, err error) {
fa, err := e.cs.StateGetActor(ctx, msg.From, ts)
if err != nil {
return false, true, err
}
// TODO: probably want to look at the chain to make sure it's
// the right message, but this is probably good enough for now
done = fa.Nonce >= msg.Nonce
rec, err := e.cs.StateGetReceipt(ctx, msg.Cid(), ts)
if err != nil {
return false, true, err
}
more, err = hnd(msg, rec, ts, ts.Height())
return done, more, err
}
}
func(e *calledEvents) MatchMsg(inmsg *types.Message) MatchFunc {
return func(msg *types.Message) (bool, error) {
if msg.From == inmsg.From && msg.Nonce == inmsg.Nonce && !inmsg.Equals(msg) {
return false, xerrors.Errorf("matching msg %s from %s, nonce %d: got duplicate origin/nonce msg %s", inmsg.Cid(), inmsg.From, inmsg.Nonce, msg.Nonce)
}
return inmsg.Equals(msg), nil
}
}