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package abciclient
import (
"context"
"sync"
types "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/log"
"github.com/tendermint/tendermint/libs/service"
)
// NOTE: use defer to unlock mutex because Application might panic (e.g., in
// case of malicious tx or query). It only makes sense for publicly exposed
// methods like CheckTx (/broadcast_tx_* RPC endpoint) or Query (/abci_query
// RPC endpoint), but defers are used everywhere for the sake of consistency.
type localClient struct {
service.BaseService
mtx *sync.Mutex
types.Application
Callback
}
var _ Client = (*localClient)(nil)
// NewLocalClient creates a local client, which will be directly calling the
// methods of the given app.
//
// Both Async and Sync methods ignore the given context.Context parameter.
func NewLocalClient(logger log.Logger, mtx *sync.Mutex, app types.Application) Client {
if mtx == nil {
mtx = new(sync.Mutex)
}
cli := &localClient{
mtx: mtx,
Application: app,
}
cli.BaseService = *service.NewBaseService(logger, "localClient", cli)
return cli
}
func (*localClient) OnStart(context.Context) error { return nil }
func (*localClient) OnStop() {}
func (app *localClient) SetResponseCallback(cb Callback) {
app.mtx.Lock()
defer app.mtx.Unlock()
app.Callback = cb
}
// TODO: change types.Application to include Error()?
func (app *localClient) Error() error {
return nil
}
func (app *localClient) FlushAsync(ctx context.Context) (*ReqRes, error) {
// Do nothing
return newLocalReqRes(types.ToRequestFlush(), nil), nil
}
func (app *localClient) DeliverTxAsync(ctx context.Context, params types.RequestDeliverTx) (*ReqRes, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.DeliverTx(params)
return app.callback(
types.ToRequestDeliverTx(params),
types.ToResponseDeliverTx(res),
), nil
}
func (app *localClient) CheckTxAsync(ctx context.Context, req types.RequestCheckTx) (*ReqRes, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.CheckTx(req)
return app.callback(
types.ToRequestCheckTx(req),
types.ToResponseCheckTx(res),
), nil
}
//-------------------------------------------------------
func (app *localClient) Flush(ctx context.Context) error {
return nil
}
func (app *localClient) Echo(ctx context.Context, msg string) (*types.ResponseEcho, error) {
return &types.ResponseEcho{Message: msg}, nil
}
func (app *localClient) Info(ctx context.Context, req types.RequestInfo) (*types.ResponseInfo, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.Info(req)
return &res, nil
}
func (app *localClient) DeliverTx(
ctx context.Context,
req types.RequestDeliverTx,
) (*types.ResponseDeliverTx, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.DeliverTx(req)
return &res, nil
}
func (app *localClient) CheckTx(
ctx context.Context,
req types.RequestCheckTx,
) (*types.ResponseCheckTx, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.CheckTx(req)
return &res, nil
}
func (app *localClient) Query(
ctx context.Context,
req types.RequestQuery,
) (*types.ResponseQuery, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.Query(req)
return &res, nil
}
func (app *localClient) Commit(ctx context.Context) (*types.ResponseCommit, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.Commit()
return &res, nil
}
func (app *localClient) InitChain(
ctx context.Context,
req types.RequestInitChain,
) (*types.ResponseInitChain, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.InitChain(req)
return &res, nil
}
func (app *localClient) BeginBlock(
ctx context.Context,
req types.RequestBeginBlock,
) (*types.ResponseBeginBlock, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.BeginBlock(req)
return &res, nil
}
func (app *localClient) EndBlock(
ctx context.Context,
req types.RequestEndBlock,
) (*types.ResponseEndBlock, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.EndBlock(req)
return &res, nil
}
func (app *localClient) ListSnapshots(
ctx context.Context,
req types.RequestListSnapshots,
) (*types.ResponseListSnapshots, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.ListSnapshots(req)
return &res, nil
}
func (app *localClient) OfferSnapshot(
ctx context.Context,
req types.RequestOfferSnapshot,
) (*types.ResponseOfferSnapshot, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.OfferSnapshot(req)
return &res, nil
}
func (app *localClient) LoadSnapshotChunk(
ctx context.Context,
req types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.LoadSnapshotChunk(req)
return &res, nil
}
func (app *localClient) ApplySnapshotChunk(
ctx context.Context,
req types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.ApplySnapshotChunk(req)
return &res, nil
}
func (app *localClient) PrepareProposal(
ctx context.Context,
req types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.PrepareProposal(req)
return &res, nil
}
func (app *localClient) ExtendVote(
ctx context.Context,
req types.RequestExtendVote) (*types.ResponseExtendVote, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.ExtendVote(req)
return &res, nil
}
func (app *localClient) VerifyVoteExtension(
ctx context.Context,
req types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error) {
app.mtx.Lock()
defer app.mtx.Unlock()
res := app.Application.VerifyVoteExtension(req)
return &res, nil
}
//-------------------------------------------------------
func (app *localClient) callback(req *types.Request, res *types.Response) *ReqRes {
app.Callback(req, res)
return newLocalReqRes(req, res)
}
func newLocalReqRes(req *types.Request, res *types.Response) *ReqRes {
reqRes := NewReqRes(req)
reqRes.Response = res
reqRes.SetDone()
return reqRes
}