Cherry pick PreprocessTxs

abci/client/client.go

@@ -46,6 +46,7 @@ type Client interface {
 	OfferSnapshotAsync(context.Context, types.RequestOfferSnapshot) (*ReqRes, error)
 	LoadSnapshotChunkAsync(context.Context, types.RequestLoadSnapshotChunk) (*ReqRes, error)
 	ApplySnapshotChunkAsync(context.Context, types.RequestApplySnapshotChunk) (*ReqRes, error)
+	PreprocessTxsAsync(context.Context, types.RequestPreprocessTxs) (*ReqRes, error)
 
 	// Synchronous requests
 	FlushSync(context.Context) error
@@ -62,6 +63,7 @@ type Client interface {
 	OfferSnapshotSync(context.Context, types.RequestOfferSnapshot) (*types.ResponseOfferSnapshot, error)
 	LoadSnapshotChunkSync(context.Context, types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error)
 	ApplySnapshotChunkSync(context.Context, types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error)
+	PreprocessTxsSync(context.Context, types.RequestPreprocessTxs) (*types.ResponsePreprocessTxs, error)
 }
 
 //----------------------------------------

abci/client/grpc_client.go

@@ -314,6 +314,15 @@ func (cli *grpcClient) ApplySnapshotChunkAsync(
 	)
 }
 
+func (cli *grpcClient) PreprocessTxsAsync(ctx context.Context, params types.RequestPreprocessTxs) (*ReqRes, error) {
+	req := types.ToRequestPreprocessTxs(params)
+	res, err := cli.client.PreprocessTxs(context.Background(), req.GetPreprocessTxs(), grpc.WaitForReady(true))
+	if err != nil {
+		cli.StopForError(err)
+	}
+	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_PreprocessTxs{PreprocessTxs: res}})
+}
+
 // finishAsyncCall creates a ReqRes for an async call, and immediately populates it
 // with the response. We don't complete it until it's been ordered via the channel.
 func (cli *grpcClient) finishAsyncCall(ctx context.Context, req *types.Request, res *types.Response) (*ReqRes, error) {
@@ -504,3 +513,15 @@ func (cli *grpcClient) ApplySnapshotChunkSync(
 	}
 	return cli.finishSyncCall(reqres).GetApplySnapshotChunk(), cli.Error()
 }
+
+func (cli *grpcClient) PreprocessTxsSync(
+	ctx context.Context,
+	params types.RequestPreprocessTxs,
+) (*types.ResponsePreprocessTxs, error) {
+
+	reqres, err := cli.PreprocessTxsAsync(ctx, params)
+	if err != nil {
+		return nil, err
+	}
+	return reqres.Response.GetPreprocessTxs(), cli.Error()
+}

abci/client/local_client.go

@@ -204,6 +204,17 @@ func (app *localClient) ApplySnapshotChunkAsync(
 	), nil
 }
 
+func (app *localClient) PreprocessTxsAsync(ctx context.Context, req types.RequestPreprocessTxs) (*ReqRes, error) {
+	app.mtx.Lock()
+	defer app.mtx.Unlock()
+
+	res := app.Application.PreprocessTxs(req)
+	return app.callback(
+		types.ToRequestPreprocessTxs(req),
+		types.ToResponsePreprocessTx(res),
+	), nil
+}
+
 //-------------------------------------------------------
 
 func (app *localClient) FlushSync(ctx context.Context) error {
@@ -346,6 +357,17 @@ func (app *localClient) ApplySnapshotChunkSync(
 	return &res, nil
 }
 
+func (app *localClient) PreprocessTxsSync(
+	ctx context.Context,
+	req types.RequestPreprocessTxs,
+) (*types.ResponsePreprocessTxs, error) {
+	app.mtx.Lock()
+	defer app.mtx.Unlock()
+
+	res := app.Application.PreprocessTxs(req)
+	return &res, nil
+}
+
 //-------------------------------------------------------
 
 func (app *localClient) callback(req *types.Request, res *types.Response) *ReqRes {

abci/client/socket_client.go

@@ -295,6 +295,10 @@ func (cli *socketClient) ApplySnapshotChunkAsync(
 	return cli.queueRequestAsync(ctx, types.ToRequestApplySnapshotChunk(req))
 }
 
+func (cli *socketClient) PreprocessTxsAsync(ctx context.Context, req types.RequestPreprocessTxs) (*ReqRes, error) {
+	return cli.queueRequestAsync(ctx, types.ToRequestPreprocessTxs(req))
+}
+
 //----------------------------------------
 
 func (cli *socketClient) FlushSync(ctx context.Context) error {
@@ -465,6 +469,17 @@ func (cli *socketClient) ApplySnapshotChunkSync(
 	return reqres.Response.GetApplySnapshotChunk(), nil
 }
 
+func (cli *socketClient) PreprocessTxsSync(
+	ctx context.Context,
+	req types.RequestPreprocessTxs,
+) (*types.ResponsePreprocessTxs, error) {
+	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestPreprocessTxs(req))
+	if err != nil {
+		return nil, err
+	}
+	return reqres.Response.GetPreprocessTxs(), nil
+}
+
 //----------------------------------------
 
 // queueRequest enqueues req onto the queue. If the queue is full, it ether
@@ -591,6 +606,8 @@ func resMatchesReq(req *types.Request, res *types.Response) (ok bool) {
 		_, ok = res.Value.(*types.Response_ListSnapshots)
 	case *types.Request_OfferSnapshot:
 		_, ok = res.Value.(*types.Response_OfferSnapshot)
+	case *types.Request_PreprocessTxs:
+		_, ok = res.Value.(*types.Response_PreprocessTxs)
 	}
 	return ok
 }

abci/example/kvstore/kvstore.go

@@ -171,3 +171,8 @@ func (app *Application) Query(reqQuery types.RequestQuery) (resQuery types.Respo
 
 	return resQuery
 }
+
+func (app *Application) PreprocessTxs(
+	req types.RequestPreprocessTxs) types.ResponsePreprocessTxs {
+	return types.ResponsePreprocessTxs{Txs: req.Txs}
+}

abci/example/kvstore/persistent_kvstore.go

@@ -170,6 +170,11 @@ func (app *PersistentKVStoreApplication) ApplySnapshotChunk(
 	return types.ResponseApplySnapshotChunk{Result: types.ResponseApplySnapshotChunk_ABORT}
 }
 
+func (app *PersistentKVStoreApplication) PreprocessTxs(
+	req types.RequestPreprocessTxs) types.ResponsePreprocessTxs {
+	return types.ResponsePreprocessTxs{Txs: req.Txs}
+}
+
 //---------------------------------------------
 // update validators
 

abci/server/socket_server.go

@@ -233,6 +233,9 @@ func (s *SocketServer) handleRequest(req *types.Request, responses chan<- *types
 	case *types.Request_ApplySnapshotChunk:
 		res := s.app.ApplySnapshotChunk(*r.ApplySnapshotChunk)
 		responses <- types.ToResponseApplySnapshotChunk(res)
+	case *types.Request_PreprocessTxs:
+		res := s.app.PreprocessTxs(*r.PreprocessTxs)
+		responses <- types.ToResponsePreprocessTx(res)
 	default:
 		responses <- types.ToResponseException("Unknown request")
 	}

abci/types/application.go

@@ -8,6 +8,7 @@ import (
 // to be driven by a blockchain-based replication engine via the ABCI.
 // All methods take a RequestXxx argument and return a ResponseXxx argument,
 // except CheckTx/DeliverTx, which take `tx []byte`, and `Commit`, which takes nothing.
+// nolint:lll // ignore for interface
 type Application interface {
 	// Info/Query Connection
 	Info(RequestInfo) ResponseInfo    // Return application info
@@ -17,11 +18,12 @@ type Application interface {
 	CheckTx(RequestCheckTx) ResponseCheckTx // Validate a tx for the mempool
 
 	// Consensus Connection
-	InitChain(RequestInitChain) ResponseInitChain    // Initialize blockchain w validators/other info from TendermintCore
-	BeginBlock(RequestBeginBlock) ResponseBeginBlock // Signals the beginning of a block
-	DeliverTx(RequestDeliverTx) ResponseDeliverTx    // Deliver a tx for full processing
-	EndBlock(RequestEndBlock) ResponseEndBlock       // Signals the end of a block, returns changes to the validator set
-	Commit() ResponseCommit                          // Commit the state and return the application Merkle root hash
+	InitChain(RequestInitChain) ResponseInitChain             // Initialize blockchain w validators/other info from TendermintCore
+	BeginBlock(RequestBeginBlock) ResponseBeginBlock          // Signals the beginning of a block
+	DeliverTx(RequestDeliverTx) ResponseDeliverTx             // Deliver a tx for full processing
+	EndBlock(RequestEndBlock) ResponseEndBlock                // Signals the end of a block, returns changes to the validator set
+	Commit() ResponseCommit                                   // Commit the state and return the application Merkle root hash
+	PreprocessTxs(RequestPreprocessTxs) ResponsePreprocessTxs // State machine preprocessing of txs
 
 	// State Sync Connection
 	ListSnapshots(RequestListSnapshots) ResponseListSnapshots                // List available snapshots
@@ -90,6 +92,10 @@ func (BaseApplication) ApplySnapshotChunk(req RequestApplySnapshotChunk) Respons
 	return ResponseApplySnapshotChunk{}
 }
 
+func (BaseApplication) PreprocessTxs(req RequestPreprocessTxs) ResponsePreprocessTxs {
+	return ResponsePreprocessTxs{}
+}
+
 //-------------------------------------------------------
 
 // GRPCApplication is a GRPC wrapper for Application
@@ -172,3 +178,9 @@ func (app *GRPCApplication) ApplySnapshotChunk(
 	res := app.app.ApplySnapshotChunk(*req)
 	return &res, nil
 }
+
+func (app *GRPCApplication) PreprocessTxs(
+	ctx context.Context, req *RequestPreprocessTxs) (*ResponsePreprocessTxs, error) {
+	res := app.app.PreprocessTxs(*req)
+	return &res, nil
+}

abci/types/messages.go

@@ -110,6 +110,12 @@ func ToRequestApplySnapshotChunk(req RequestApplySnapshotChunk) *Request {
 	}
 }
 
+func ToRequestPreprocessTxs(res RequestPreprocessTxs) *Request {
+	return &Request{
+		Value: &Request_PreprocessTxs{&res},
+	}
+}
+
 //----------------------------------------
 
 func ToResponseException(errStr string) *Response {
@@ -200,3 +206,9 @@ func ToResponseApplySnapshotChunk(res ResponseApplySnapshotChunk) *Response {
 		Value: &Response_ApplySnapshotChunk{&res},
 	}
 }
+
+func ToResponsePreprocessTx(res ResponsePreprocessTxs) *Response {
+	return &Response{
+		Value: &Response_PreprocessTxs{&res},
+	}
+}