feat: concurrent recheckTx (#52)

* chore: simply implement abci.`CheckTxSync()` and abci.`CheckTxAsync()`

* chore: move `accountLock` from `anteTx()` to `checkTxWithLock()`

* feat: impl `abci.CheckTxAsync()` with reactor

# Conflicts:
#	baseapp/baseapp.go

* feat: impl `accountwgs`

* feat: impl `accountwgs_test`

* chore: revise code after cherry-pick

* chore: bump-up tendermint & iavl

* chore: rename func from `startCheckTxAsyncReactor()` to `checkTxAsyncReactor()`

* fix: imports for lint

* fix: imports for lint

* chore: rename `Waits()` to `Wait()`
# Conflicts:
#	baseapp/abci.go
#	baseapp/accountlock.go
#	baseapp/accountwgs_test.go
#	baseapp/baseapp.go
#	baseapp/baseapp_test.go
#	go.mod
#	go.sum

baseapp/abci.go

@@ -210,17 +210,22 @@ func (app *BaseApp) EndBlock(req abci.RequestEndBlock) (res abci.ResponseEndBloc
 // internal CheckTx state if the AnteHandler passes. Otherwise, the ResponseCheckTx
 // will contain releveant error information. Regardless of tx execution outcome,
 // the ResponseCheckTx will contain relevant gas execution context.
-func (app *BaseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
+func (app *BaseApp) CheckTxSync(req abci.RequestCheckTx) abci.ResponseCheckTx {
 	defer telemetry.MeasureSince(time.Now(), "abci", "check_tx")
 
-	tx, err := app.txDecoder(req.Tx)
+	if req.Type != abci.CheckTxType_New && req.Type != abci.CheckTxType_Recheck {
+		panic(fmt.Sprintf("unknown RequestCheckTx type: %s", req.Type))
+	}
+
+	tx, err := app.preCheckTx(req.Tx)
 	if err != nil {
 		return sdkerrors.ResponseCheckTx(err, 0, 0, app.trace)
 	}
 
-	if req.Type != abci.CheckTxType_New && req.Type != abci.CheckTxType_Recheck {
-		panic(fmt.Sprintf("unknown RequestCheckTx type: %s", req.Type))
-	}
+	waits, signals := app.checkAccountWGs.Register(tx)
+
+	app.checkAccountWGs.Wait(waits)
+	defer app.checkAccountWGs.Done(signals)
 
 	gInfo, err := app.checkTx(req.Tx, tx, req.Type == abci.CheckTxType_Recheck)
 	if err != nil {
@@ -233,6 +238,22 @@ func (app *BaseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 	}
 }
 
+func (app *BaseApp) CheckTxAsync(req abci.RequestCheckTx, callback abci.CheckTxCallback) {
+	if req.Type != abci.CheckTxType_New && req.Type != abci.CheckTxType_Recheck {
+		panic(fmt.Sprintf("unknown RequestCheckTx type: %s", req.Type))
+	}
+
+	reqCheckTx := &RequestCheckTxAsync{
+		txBytes:  req.Tx,
+		recheck:  req.Type == abci.CheckTxType_Recheck,
+		callback: callback,
+		prepare:  waitGroup1(),
+	}
+	app.chCheckTx <- reqCheckTx
+
+	go app.prepareCheckTx(reqCheckTx)
+}
+
 // BeginRecheckTx implements the ABCI interface and set the check state based on the given header
 func (app *BaseApp) BeginRecheckTx(req abci.RequestBeginRecheckTx) abci.ResponseBeginRecheckTx {
 	// NOTE: This is safe because Ostracon holds a lock on the mempool for Rechecking.

baseapp/accountwgs.go

@@ -0,0 +1,85 @@
+package baseapp
+
+import (
+	"sync"
+
+	sdk "github.com/line/lbm-sdk/v2/types"
+)
+
+type AccountWGs struct {
+	mtx sync.Mutex
+	wgs map[string]*sync.WaitGroup
+}
+
+func NewAccountWGs() *AccountWGs {
+	return &AccountWGs{
+		wgs: make(map[string]*sync.WaitGroup),
+	}
+}
+
+func (aw *AccountWGs) Register(tx sdk.Tx) (waits []*sync.WaitGroup, signals []*AccountWG) {
+	signers := getUniqSigners(tx)
+
+	aw.mtx.Lock()
+	defer aw.mtx.Unlock()
+	for _, signer := range signers {
+		if wg := aw.wgs[signer]; wg != nil {
+			waits = append(waits, wg)
+		}
+		sig := waitGroup1()
+		aw.wgs[signer] = sig
+		signals = append(signals, NewAccountWG(signer, sig))
+	}
+
+	return waits, signals
+}
+
+func (aw *AccountWGs) Wait(waits []*sync.WaitGroup) {
+	for _, wait := range waits {
+		wait.Wait()
+	}
+}
+
+func (aw *AccountWGs) Done(signals []*AccountWG) {
+	aw.mtx.Lock()
+	defer aw.mtx.Unlock()
+
+	for _, signal := range signals {
+		signal.wg.Done()
+		if aw.wgs[signal.acc] == signal.wg {
+			delete(aw.wgs, signal.acc)
+		}
+	}
+}
+
+func getUniqSigners(tx sdk.Tx) []string {
+	seen := map[string]bool{}
+	var signers []string
+	for _, msg := range tx.GetMsgs() {
+		for _, addr := range msg.GetSigners() {
+			if !seen[addr.String()] {
+				signers = append(signers, string(addr))
+				seen[addr.String()] = true
+			}
+		}
+	}
+	return signers
+}
+
+type AccountWG struct {
+	acc string
+	wg  *sync.WaitGroup
+}
+
+func NewAccountWG(acc string, wg *sync.WaitGroup) *AccountWG {
+	return &AccountWG{
+		acc: acc,
+		wg:  wg,
+	}
+}
+
+func waitGroup1() (wg *sync.WaitGroup) {
+	wg = &sync.WaitGroup{}
+	wg.Add(1)
+	return wg
+}

baseapp/accountlock_test.go → baseapp/accountwgs_test.go

@@ -1,76 +1,66 @@
 package baseapp
 
 import (
-	"reflect"
-	"sort"
-	"sync"
 	"testing"
 
 	"github.com/stretchr/testify/require"
 
-	ostproto "github.com/line/ostracon/proto/ostracon/types"
-
 	"github.com/line/lbm-sdk/v2/crypto/keys/secp256k1"
 	"github.com/line/lbm-sdk/v2/testutil/testdata"
 	sdk "github.com/line/lbm-sdk/v2/types"
 )
 
-func TestAccountLock(t *testing.T) {
+func TestConvertByteSliceToString(t *testing.T) {
+	b := []byte{65, 66, 67, 0, 65, 66, 67}
+	s := string(b)
+	require.Equal(t, len(b), len(s))
+	require.Equal(t, uint8(0), s[3])
+}
+
+func TestRegister(t *testing.T) {
 	app := setupBaseApp(t)
-	ctx := app.NewContext(true, ostproto.Header{})
 
 	privs := newTestPrivKeys(3)
 	tx := newTestTx(privs)
 
-	accKeys := app.accountLock.Lock(ctx, tx)
+	waits, signals := app.checkAccountWGs.Register(tx)
 
-	for _, accKey := range accKeys {
-		require.True(t, isMutexLock(&app.accountLock.accMtx[accKey]))
-	}
+	require.Equal(t, 0, len(waits))
+	require.Equal(t, 3, len(signals))
 
-	app.accountLock.Unlock(accKeys)
-
-	for _, accKey := range accKeys {
-		require.False(t, isMutexLock(&app.accountLock.accMtx[accKey]))
+	for _, signal := range signals {
+		require.Equal(t, app.checkAccountWGs.wgs[signal.acc], signal.wg)
 	}
 }
 
-func TestUnlockDoNothingWithNil(t *testing.T) {
+func TestDontPanicWithNil(t *testing.T) {
 	app := setupBaseApp(t)
-	require.NotPanics(t, func() { app.accountLock.Unlock(nil) })
-}
 
-func TestGetSigner(t *testing.T) {
-	privs := newTestPrivKeys(3)
-	tx := newTestTx(privs)
-	signers := getSigners(tx)
-
-	require.Equal(t, getAddrs(privs), signers)
+	require.NotPanics(t, func() { app.checkAccountWGs.Wait(nil) })
+	require.NotPanics(t, func() { app.checkAccountWGs.Done(nil) })
 }
 
-func TestGetUniqSortedAddressKey(t *testing.T) {
+func TestGetUniqSigners(t *testing.T) {
 	privs := newTestPrivKeys(3)
 
 	addrs := getAddrs(privs)
 	addrs = append(addrs, addrs[1], addrs[0])
 	require.Equal(t, 5, len(addrs))
 
-	accKeys := getUniqSortedAddressKey(addrs)
+	tx := newTestTx(privs)
+	signers := getUniqSigners(tx)
 
 	// length should be reduced because `duplicated` is removed
-	require.Less(t, len(accKeys), len(addrs))
+	require.Less(t, len(signers), len(addrs))
 
 	// check uniqueness
-	for i, iv := range accKeys {
-		for j, jv := range accKeys {
+	for i, iv := range signers {
+		for j, jv := range signers {
 			if i != j {
 				require.True(t, iv != jv)
 			}
 		}
 	}
-
-	// should be sorted
-	require.True(t, sort.IsSorted(uint32Slice(accKeys)))
 }
 
 type AccountLockTestTx struct {
@@ -111,9 +101,3 @@ func newTestTx(privs []*secp256k1.PrivKey) sdk.Tx {
 	}
 	return AccountLockTestTx{Msgs: msgs}
 }
-
-// Hack (too slow)
-func isMutexLock(mtx *sync.Mutex) bool {
-	state := reflect.ValueOf(mtx).Elem().FieldByName("state")
-	return state.Int() == 1
-}