lotus/chain/stmgr/utils.go
2021-12-17 19:14:21 -05:00

214 lines
6.5 KiB
Go

package stmgr
import (
"context"
"fmt"
"reflect"
"github.com/filecoin-project/lotus/chain/rand"
"github.com/ipfs/go-cid"
cbg "github.com/whyrusleeping/cbor-gen"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/big"
"github.com/filecoin-project/lotus/api"
init_ "github.com/filecoin-project/lotus/chain/actors/builtin/init"
"github.com/filecoin-project/lotus/chain/actors/policy"
"github.com/filecoin-project/lotus/chain/state"
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/chain/vm"
"github.com/filecoin-project/lotus/node/modules/dtypes"
)
func GetReturnType(ctx context.Context, sm *StateManager, to address.Address, method abi.MethodNum, ts *types.TipSet) (cbg.CBORUnmarshaler, error) {
act, err := sm.LoadActor(ctx, to, ts)
if err != nil {
return nil, xerrors.Errorf("(get sset) failed to load miner actor: %w", err)
}
m, found := sm.tsExec.NewActorRegistry().Methods[act.Code][method]
if !found {
return nil, fmt.Errorf("unknown method %d for actor %s", method, act.Code)
}
return reflect.New(m.Ret.Elem()).Interface().(cbg.CBORUnmarshaler), nil
}
func GetParamType(ar *vm.ActorRegistry, actCode cid.Cid, method abi.MethodNum) (cbg.CBORUnmarshaler, error) {
m, found := ar.Methods[actCode][method]
if !found {
return nil, fmt.Errorf("unknown method %d for actor %s", method, actCode)
}
return reflect.New(m.Params.Elem()).Interface().(cbg.CBORUnmarshaler), nil
}
func GetNetworkName(ctx context.Context, sm *StateManager, st cid.Cid) (dtypes.NetworkName, error) {
act, err := sm.LoadActorRaw(ctx, init_.Address, st)
if err != nil {
return "", err
}
ias, err := init_.Load(sm.cs.ActorStore(ctx), act)
if err != nil {
return "", err
}
return ias.NetworkName()
}
func ComputeState(ctx context.Context, sm *StateManager, height abi.ChainEpoch, msgs []*types.Message, ts *types.TipSet) (cid.Cid, []*api.InvocResult, error) {
if ts == nil {
ts = sm.cs.GetHeaviestTipSet()
}
base, trace, err := sm.ExecutionTrace(ctx, ts)
if err != nil {
return cid.Undef, nil, err
}
for i := ts.Height(); i < height; i++ {
// Technically, the tipset we're passing in here should be ts+1, but that may not exist.
base, err = sm.HandleStateForks(ctx, base, i, &InvocationTracer{trace: &trace}, ts)
if err != nil {
return cid.Undef, nil, xerrors.Errorf("error handling state forks: %w", err)
}
// We intentionally don't run cron here, as we may be trying to look into the
// future. It's not guaranteed to be accurate... but that's fine.
}
r := rand.NewStateRand(sm.cs, ts.Cids(), sm.beacon, sm.GetNetworkVersion)
vmopt := &vm.VMOpts{
StateBase: base,
Epoch: height,
Rand: r,
Bstore: sm.cs.StateBlockstore(),
Actors: sm.tsExec.NewActorRegistry(),
Syscalls: sm.Syscalls,
CircSupplyCalc: sm.GetVMCirculatingSupply,
NetworkVersion: sm.GetNetworkVersion(ctx, height),
BaseFee: ts.Blocks()[0].ParentBaseFee,
LookbackState: LookbackStateGetterForTipset(sm, ts),
}
vmi, err := sm.newVM(ctx, vmopt)
if err != nil {
return cid.Undef, nil, err
}
for i, msg := range msgs {
// TODO: Use the signed message length for secp messages
ret, err := vmi.ApplyMessage(ctx, msg)
if err != nil {
return cid.Undef, nil, xerrors.Errorf("applying message %s: %w", msg.Cid(), err)
}
if ret.ExitCode != 0 {
log.Infof("compute state apply message %d failed (exit: %d): %s", i, ret.ExitCode, ret.ActorErr)
}
}
root, err := vmi.Flush(ctx)
if err != nil {
return cid.Undef, nil, err
}
return root, trace, nil
}
func LookbackStateGetterForTipset(sm *StateManager, ts *types.TipSet) vm.LookbackStateGetter {
return func(ctx context.Context, round abi.ChainEpoch) (*state.StateTree, error) {
_, st, err := GetLookbackTipSetForRound(ctx, sm, ts, round)
if err != nil {
return nil, err
}
return sm.StateTree(st)
}
}
func GetLookbackTipSetForRound(ctx context.Context, sm *StateManager, ts *types.TipSet, round abi.ChainEpoch) (*types.TipSet, cid.Cid, error) {
var lbr abi.ChainEpoch
lb := policy.GetWinningPoStSectorSetLookback(sm.GetNetworkVersion(ctx, round))
if round > lb {
lbr = round - lb
}
// more null blocks than our lookback
if lbr >= ts.Height() {
// This should never happen at this point, but may happen before
// network version 3 (where the lookback was only 10 blocks).
st, _, err := sm.TipSetState(ctx, ts)
if err != nil {
return nil, cid.Undef, err
}
return ts, st, nil
}
// Get the tipset after the lookback tipset, or the next non-null one.
nextTs, err := sm.ChainStore().GetTipsetByHeight(ctx, lbr+1, ts, false)
if err != nil {
return nil, cid.Undef, xerrors.Errorf("failed to get lookback tipset+1: %w", err)
}
if lbr > nextTs.Height() {
return nil, cid.Undef, xerrors.Errorf("failed to find non-null tipset %s (%d) which is known to exist, found %s (%d)", ts.Key(), ts.Height(), nextTs.Key(), nextTs.Height())
}
lbts, err := sm.ChainStore().GetTipSetFromKey(ctx, nextTs.Parents())
if err != nil {
return nil, cid.Undef, xerrors.Errorf("failed to resolve lookback tipset: %w", err)
}
return lbts, nextTs.ParentState(), nil
}
func CheckTotalFIL(ctx context.Context, cs *store.ChainStore, ts *types.TipSet) (abi.TokenAmount, error) {
str, err := state.LoadStateTree(cs.ActorStore(ctx), ts.ParentState())
if err != nil {
return abi.TokenAmount{}, err
}
sum := types.NewInt(0)
err = str.ForEach(func(a address.Address, act *types.Actor) error {
sum = types.BigAdd(sum, act.Balance)
return nil
})
if err != nil {
return abi.TokenAmount{}, err
}
return sum, nil
}
func MakeMsgGasCost(msg *types.Message, ret *vm.ApplyRet) api.MsgGasCost {
return api.MsgGasCost{
Message: msg.Cid(),
GasUsed: big.NewInt(ret.GasUsed),
BaseFeeBurn: ret.GasCosts.BaseFeeBurn,
OverEstimationBurn: ret.GasCosts.OverEstimationBurn,
MinerPenalty: ret.GasCosts.MinerPenalty,
MinerTip: ret.GasCosts.MinerTip,
Refund: ret.GasCosts.Refund,
TotalCost: big.Sub(msg.RequiredFunds(), ret.GasCosts.Refund),
}
}
func (sm *StateManager) ListAllActors(ctx context.Context, ts *types.TipSet) ([]address.Address, error) {
stateTree, err := sm.StateTree(sm.parentState(ts))
if err != nil {
return nil, err
}
var out []address.Address
err = stateTree.ForEach(func(addr address.Address, act *types.Actor) error {
out = append(out, addr)
return nil
})
if err != nil {
return nil, err
}
return out, nil
}