50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
package events
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import (
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"context"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/lotus/chain/stmgr"
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"github.com/filecoin-project/lotus/chain/types"
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)
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func (me *messageEvents) CheckMsg(smsg types.ChainMsg, hnd MsgHandler) CheckFunc {
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msg := smsg.VMMessage()
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return func(ctx context.Context, ts *types.TipSet) (done bool, more bool, err error) {
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fa, err := me.cs.StateGetActor(ctx, msg.From, ts.Key())
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if err != nil {
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return false, true, err
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}
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// >= because actor nonce is actually the next nonce that is expected to appear on chain
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if msg.Nonce >= fa.Nonce {
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return false, true, nil
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}
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ml, err := me.cs.StateSearchMsg(ctx, ts.Key(), msg.Cid(), stmgr.LookbackNoLimit, true)
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if err != nil {
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return false, true, xerrors.Errorf("getting receipt in CheckMsg: %w", err)
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}
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if ml == nil {
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more, err = hnd(msg, nil, ts, ts.Height())
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} else {
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more, err = hnd(msg, &ml.Receipt, ts, ts.Height())
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}
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return true, more, err
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}
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}
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func (me *messageEvents) MatchMsg(inmsg *types.Message) MsgMatchFunc {
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return func(msg *types.Message) (matched bool, err error) {
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if msg.From == inmsg.From && msg.Nonce == inmsg.Nonce && !inmsg.Equals(msg) {
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return false, xerrors.Errorf("matching msg %s from %s, nonce %d: got duplicate origin/nonce msg %d", inmsg.Cid(), inmsg.From, inmsg.Nonce, msg.Nonce)
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}
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return inmsg.Equals(msg), nil
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}
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}
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