avoid estimating gas and explicitly calling blocks on fork tipsets

These tipsets can be slow.
2020-10-07 15:31:14 -07:00
parent fe912223bd
commit dab1107f5b
3 changed files with 56 additions and 1 deletions
@@ -160,7 +160,18 @@ func (a *GasAPI) GasEstimateGasLimit(ctx context.Context, msgIn *types.Message,
 		priorMsgs = append(priorMsgs, m)
 	}

-	res, err := a.Stmgr.CallWithGas(ctx, &msg, priorMsgs, ts)
+	// Try calling until we find a height with no migration.
+	var res *api.InvocResult
+	for {
+		res, err = a.Stmgr.CallWithGas(ctx, &msg, priorMsgs, ts)
+		if err != stmgr.ErrWouldFork {
+			break
+		}
+		ts, err = a.Chain.GetTipSetFromKey(ts.Parents())
+		if err != nil {
+			return -1, xerrors.Errorf("getting parent tipset: %w", err)
+		}
+	}
 	if err != nil {
 		return -1, xerrors.Errorf("CallWithGas failed: %w", err)
 	}