lotus/chain/stmgr/tracers.go
2022-06-14 17:00:51 +02:00

58 lines
1.5 KiB
Go

package stmgr
import (
"context"
"github.com/ipfs/go-cid"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/chain/vm"
)
type ExecMonitor interface {
// MessageApplied is called after a message has been applied. Returning an error will halt execution of any further messages.
MessageApplied(ctx context.Context, ts *types.TipSet, mcid cid.Cid, msg *types.Message, ret *vm.ApplyRet, implicit bool) error
}
var _ ExecMonitor = (*InvocationTracer)(nil)
type InvocationTracer struct {
trace *[]*api.InvocResult
}
func (i *InvocationTracer) MessageApplied(ctx context.Context, ts *types.TipSet, mcid cid.Cid, msg *types.Message, ret *vm.ApplyRet, implicit bool) error {
ir := &api.InvocResult{
MsgCid: mcid,
Msg: msg,
MsgRct: &ret.MessageReceipt,
ExecutionTrace: ret.ExecutionTrace,
Duration: ret.Duration,
}
if ret.ActorErr != nil {
ir.Error = ret.ActorErr.Error()
}
if ret.GasCosts != nil {
ir.GasCost = MakeMsgGasCost(msg, ret)
}
*i.trace = append(*i.trace, ir)
return nil
}
var _ ExecMonitor = (*messageFinder)(nil)
type messageFinder struct {
mcid cid.Cid // the message cid to find
outm *types.Message
outr *vm.ApplyRet
}
func (m *messageFinder) MessageApplied(ctx context.Context, ts *types.TipSet, mcid cid.Cid, msg *types.Message, ret *vm.ApplyRet, implicit bool) error {
if m.mcid == mcid {
m.outm = msg
m.outr = ret
return errHaltExecution // message was found, no need to continue
}
return nil
}