Add gas estimation

Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

api/api_full.go

@@ -101,6 +101,16 @@ type FullNode interface {
 	// ChainExport returns a stream of bytes with CAR dump of chain data.
 	ChainExport(context.Context, types.TipSetKey) (<-chan []byte, error)
 
+	// GasEstimateGasLimit estimates gas used by the message and returns it.
+	// It fails if message fails to execute.
+	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error)
+
+	// GasEstimateGasPrice estimates what gas price should be used for a
+	// message to have high likelihood of inclusion in `nblocksincl` epochs.
+
+	GasEstimateGasPrice(_ context.Context, nblocksincl uint64,
+		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
+
 	// MethodGroup: Sync
 	// The Sync method group contains methods for interacting with and
 	// observing the lotus sync service.
@@ -143,8 +153,8 @@ type FullNode interface {
 	MpoolGetNonce(context.Context, address.Address) (uint64, error)
 	MpoolSub(context.Context) (<-chan MpoolUpdate, error)
 
-	// MpoolEstimateGasPrice estimates what gas price should be used for a
+	// MpoolEstimateGasPrice is depracated
-	// message to have high likelihood of inclusion in `nblocksincl` epochs.
+	// Deprecated: use GasEstimateGasPrice instead
 	MpoolEstimateGasPrice(ctx context.Context, nblocksincl uint64, sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
 
 	// MethodGroup: Miner

api/apistruct/struct.go

@@ -82,6 +82,9 @@ type FullNodeStruct struct {
 		ChainGetPath           func(context.Context, types.TipSetKey, types.TipSetKey) ([]*api.HeadChange, error)                                 `perm:"read"`
 		ChainExport            func(context.Context, types.TipSetKey) (<-chan []byte, error)                                                      `perm:"read"`
 
+		GasEstimateGasPrice func(context.Context, uint64, address.Address, int64, types.TipSetKey) (types.BigInt, error) `perm:"read"`
+		GasEstimateGasLimit func(context.Context, *types.Message, types.TipSetKey) (int64, error)                        `perm:"read"`
+
 		SyncState          func(context.Context) (*api.SyncState, error)                `perm:"read"`
 		SyncSubmitBlock    func(ctx context.Context, blk *types.BlockMsg) error         `perm:"write"`
 		SyncIncomingBlocks func(ctx context.Context) (<-chan *types.BlockHeader, error) `perm:"read"`
@@ -93,7 +96,6 @@ type FullNodeStruct struct {
 		MpoolPushMessage func(context.Context, *types.Message) (*types.SignedMessage, error)    `perm:"sign"`
 		MpoolGetNonce    func(context.Context, address.Address) (uint64, error)                 `perm:"read"`
 		MpoolSub         func(context.Context) (<-chan api.MpoolUpdate, error)                  `perm:"read"`
-		MpoolEstimateGasPrice func(context.Context, uint64, address.Address, int64, types.TipSetKey) (types.BigInt, error) `perm:"read"`
 
 		MinerGetBaseInfo func(context.Context, address.Address, abi.ChainEpoch, types.TipSetKey) (*api.MiningBaseInfo, error) `perm:"read"`
 		MinerCreateBlock func(context.Context, *api.BlockTemplate) (*types.BlockMsg, error)                                   `perm:"write"`
@@ -400,6 +402,16 @@ func (c *FullNodeStruct) ClientGenCar(ctx context.Context, ref api.FileRef, outp
 	return c.Internal.ClientGenCar(ctx, ref, outpath)
 }
 
+func (c *FullNodeStruct) GasEstimateGasPrice(ctx context.Context, nblocksincl uint64,
+	sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) {
+	return c.Internal.GasEstimateGasPrice(ctx, nblocksincl, sender, gaslimit, tsk)
+}
+
+func (c *FullNodeStruct) GasEstimateGasLimit(ctx context.Context, msg *types.Message,
+	tsk types.TipSetKey) (int64, error) {
+	return c.Internal.GasEstimateGasLimit(ctx, msg, tsk)
+}
+
 func (c *FullNodeStruct) MpoolPending(ctx context.Context, tsk types.TipSetKey) ([]*types.SignedMessage, error) {
 	return c.Internal.MpoolPending(ctx, tsk)
 }
@@ -417,7 +429,7 @@ func (c *FullNodeStruct) MpoolSub(ctx context.Context) (<-chan api.MpoolUpdate,
 }
 
 func (c *FullNodeStruct) MpoolEstimateGasPrice(ctx context.Context, nblocksincl uint64, sender address.Address, limit int64, tsk types.TipSetKey) (types.BigInt, error) {
-	return c.Internal.MpoolEstimateGasPrice(ctx, nblocksincl, sender, limit, tsk)
+	return c.Internal.GasEstimateGasPrice(ctx, nblocksincl, sender, limit, tsk)
 }
 
 func (c *FullNodeStruct) MinerGetBaseInfo(ctx context.Context, maddr address.Address, epoch abi.ChainEpoch, tsk types.TipSetKey) (*api.MiningBaseInfo, error) {

build/version.go

@@ -53,7 +53,7 @@ func (ve Version) EqMajorMinor(v2 Version) bool {
 }
 
 // APIVersion is a semver version of the rpc api exposed
-var APIVersion Version = newVer(0, 8, 0)
+var APIVersion Version = newVer(0, 8, 1)
 
 //nolint:varcheck,deadcode
 const (

chain/messagepool/messagepool.go

@@ -875,6 +875,7 @@ func (mp *MessagePool) loadLocal() error {
 
 const MinGasPrice = 0
 
+//TODO: remove replaced by Gas module
 func (mp *MessagePool) EstimateGasPrice(ctx context.Context, nblocksincl uint64, sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) {
 	// TODO: something smarter obviously
 	switch nblocksincl {

chain/stmgr/call.go

@@ -4,7 +4,9 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/specs-actors/actors/abi"
+	"github.com/filecoin-project/specs-actors/actors/crypto"
 	"github.com/ipfs/go-cid"
 	"go.opencensus.io/trace"
 	"golang.org/x/xerrors"
@@ -84,6 +86,73 @@ func (sm *StateManager) Call(ctx context.Context, msg *types.Message, ts *types.
 	return sm.CallRaw(ctx, msg, state, r, ts.Height())
 }
 
+func (sm *StateManager) CallWithGas(ctx context.Context, msg *types.Message, ts *types.TipSet) (*api.InvocResult, error) {
+	ctx, span := trace.StartSpan(ctx, "statemanager.CallWithGas")
+	defer span.End()
+
+	if ts == nil {
+		ts = sm.cs.GetHeaviestTipSet()
+	}
+
+	state := ts.ParentState()
+
+	r := store.NewChainRand(sm.cs, ts.Cids(), ts.Height())
+
+	if span.IsRecordingEvents() {
+		span.AddAttributes(
+			trace.Int64Attribute("gas_limit", msg.GasLimit),
+			trace.Int64Attribute("gas_price", int64(msg.GasPrice.Uint64())),
+			trace.StringAttribute("value", msg.Value.String()),
+		)
+	}
+
+	fromKey, err := sm.ResolveToKeyAddress(ctx, msg.From, ts)
+	var msgApply types.ChainMsg
+	switch fromKey.Protocol() {
+	case address.BLS:
+		msgApply = msg
+	case address.SECP256K1:
+		msgApply = &types.SignedMessage{
+			Message: *msg,
+			Signature: crypto.Signature{
+				Type: crypto.SigTypeSecp256k1,
+				Data: make([]byte, 65),
+			},
+		}
+
+	}
+
+	vmi, err := vm.NewVM(state, ts.Height(), r, sm.cs.Blockstore(), sm.cs.VMSys())
+	if err != nil {
+		return nil, xerrors.Errorf("failed to set up vm: %w", err)
+	}
+
+	fromActor, err := vmi.StateTree().GetActor(msg.From)
+	if err != nil {
+		return nil, xerrors.Errorf("call raw get actor: %s", err)
+	}
+
+	msg.Nonce = fromActor.Nonce
+
+	ret, err := vmi.ApplyMessage(ctx, msgApply)
+	if err != nil {
+		return nil, xerrors.Errorf("apply message failed: %w", err)
+	}
+
+	var errs string
+	if ret.ActorErr != nil {
+		errs = ret.ActorErr.Error()
+	}
+
+	return &api.InvocResult{
+		Msg:            msg,
+		MsgRct:         &ret.MessageReceipt,
+		ExecutionTrace: ret.ExecutionTrace,
+		Error:          errs,
+		Duration:       ret.Duration,
+	}, nil
+}
+
 var errHaltExecution = fmt.Errorf("halt")
 
 func (sm *StateManager) Replay(ctx context.Context, ts *types.TipSet, mcid cid.Cid) (*types.Message, *vm.ApplyRet, error) {

cli/send.go

@@ -77,7 +77,6 @@ var sendCmd = &cli.Command{
 			From:     fromAddr,
 			To:       toAddr,
 			Value:    types.BigInt(val),
-			GasLimit: 100_000_000,
 			GasPrice: gp,
 		}
 

node/impl/full.go

@@ -1,9 +1,13 @@
 package impl
 
 import (
+	"context"
+
 	logging "github.com/ipfs/go-log/v2"
 
+	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/node/impl/client"
 	"github.com/filecoin-project/lotus/node/impl/common"
 	"github.com/filecoin-project/lotus/node/impl/full"
@@ -18,6 +22,7 @@ type FullNodeAPI struct {
 	full.ChainAPI
 	client.API
 	full.MpoolAPI
+	full.GasAPI
 	market.MarketAPI
 	paych.PaychAPI
 	full.StateAPI
@@ -26,4 +31,10 @@ type FullNodeAPI struct {
 	full.SyncAPI
 }
 
+// MpoolEstimateGasPrice estimates gas price
+// Deprecated: used GasEstimateGasPrice instead
+func (fa *FullNodeAPI) MpoolEstimateGasPrice(ctx context.Context, nblocksincl uint64, sender address.Address, limit int64, tsk types.TipSetKey) (types.BigInt, error) {
+	return fa.GasEstimateGasPrice(ctx, nblocksincl, sender, limit, tsk)
+}
+
 var _ api.FullNode = &FullNodeAPI{}

node/impl/full/gas.go

@@ -0,0 +1,55 @@
+package full
+
+import (
+	"context"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/stmgr"
+	"github.com/filecoin-project/lotus/chain/store"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/specs-actors/actors/runtime/exitcode"
+	"go.uber.org/fx"
+	"golang.org/x/xerrors"
+)
+
+type GasAPI struct {
+	fx.In
+	Stmgr *stmgr.StateManager
+	Cs    *store.ChainStore
+}
+
+const MinGasPrice = 1
+
+func (a *GasAPI) GasEstimateGasPrice(ctx context.Context, nblocksincl uint64,
+	sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) {
+
+	// TODO: something smarter obviously
+	switch nblocksincl {
+	case 0:
+		return types.NewInt(MinGasPrice + 2), nil
+	case 1:
+		return types.NewInt(MinGasPrice + 1), nil
+	default:
+		return types.NewInt(MinGasPrice), nil
+	}
+}
+
+func (a *GasAPI) GasEstimateGasLimit(ctx context.Context, msgIn *types.Message,
+	tsk types.TipSetKey) (int64, error) {
+
+	msg := &(*msgIn)
+	msg.GasLimit = build.BlockGasLimit
+
+	ts, err := a.Cs.GetTipSetFromKey(tsk)
+	if err != nil {
+		return -1, xerrors.Errorf("could not get tipset: %w", err)
+	}
+
+	res, err := a.Stmgr.CallWithGas(ctx, msg, ts)
+	if res.MsgRct.ExitCode != exitcode.Ok {
+		return -1, xerrors.Errorf("could not apply message: exit %s, reason: %s", res.MsgRct.ExitCode, res.Error)
+	}
+
+	return res.MsgRct.GasUsed, nil
+}

node/impl/full/mpool.go

@@ -18,6 +18,7 @@ type MpoolAPI struct {
 	fx.In
 
 	WalletAPI
+	GasAPI
 
 	Chain *store.ChainStore
 
@@ -86,15 +87,26 @@ func (a *MpoolAPI) MpoolPush(ctx context.Context, smsg *types.SignedMessage) (ci
 	return a.Mpool.Push(smsg)
 }
 
+// GasMargin sets by how much should gas limit be increased over test execution
+var GasMargin = 1.2
+
 func (a *MpoolAPI) MpoolPushMessage(ctx context.Context, msg *types.Message) (*types.SignedMessage, error) {
 	if msg.Nonce != 0 {
 		return nil, xerrors.Errorf("MpoolPushMessage expects message nonce to be 0, was %d", msg.Nonce)
 	}
 	if msg.GasLimit == 0 {
-		msg.GasLimit = 100_000_000 // TODO: gas limit estimation
+		gasLimit, err := a.GasEstimateGasLimit(ctx, msg, types.TipSetKey{})
+		if err != nil {
+			return nil, xerrors.Errorf("estimating gas limit: %w", err)
+		}
+		msg.GasLimit = int64(float64(gasLimit) * GasMargin)
 	}
 	if types.BigCmp(msg.GasPrice, types.NewInt(0)) == 0 {
-		msg.GasPrice = types.NewInt(1) // TODO: gas price estimation
+		gasPrice, err := a.GasEstimateGasPrice(ctx, 2, msg.From, msg.GasLimit, types.TipSetKey{})
+		if err != nil {
+			return nil, xerrors.Errorf("estimating gas price: %w", err)
+		}
+		msg.GasPrice = gasPrice
 	}
 
 	return a.Mpool.PushWithNonce(ctx, msg.From, func(from address.Address, nonce uint64) (*types.SignedMessage, error) {
@@ -124,7 +136,3 @@ func (a *MpoolAPI) MpoolGetNonce(ctx context.Context, addr address.Address) (uin
 func (a *MpoolAPI) MpoolSub(ctx context.Context) (<-chan api.MpoolUpdate, error) {
 	return a.Mpool.Updates(ctx)
 }
-
-func (a *MpoolAPI) MpoolEstimateGasPrice(ctx context.Context, nblocksincl uint64, sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) {
-	return a.Mpool.EstimateGasPrice(ctx, nblocksincl, sender, gaslimit, tsk)
-}

scripts/dev/sminer-init

@@ -7,4 +7,4 @@ export TRUST_PARAMS=1
 tag=${TAG:-debug}
 
 go run -tags=$tag ./cmd/lotus wallet import ~/.genesis-sectors/pre-seal-t01000.key
-go run -tags=$tag ./cmd/lotus-miner init --actor=t01000 --genesis-miner --pre-sealed-sectors=~/.genesis-sectors --pre-sealed-metadata=~/.genesis-sectors/pre-seal-t01000.json
+go run -tags=$tag ./cmd/lotus-storage-miner init --actor=t01000 --genesis-miner --pre-sealed-sectors=~/.genesis-sectors --pre-sealed-metadata=~/.genesis-sectors/pre-seal-t01000.json