example/golang

example/golang/dummy.go

@@ -0,0 +1,97 @@
+package example
+
+import (
+	"sync"
+
+	. "github.com/tendermint/go-common"
+	"github.com/tendermint/go-merkle"
+	"github.com/tendermint/go-wire"
+	"github.com/tendermint/tmsp/types"
+)
+
+type DummyApplication struct {
+	mtx   sync.Mutex
+	state merkle.Tree
+}
+
+func NewDummyApplication() *DummyApplication {
+	state := merkle.NewIAVLTree(
+		wire.BasicCodec,
+		wire.BasicCodec,
+		0,
+		nil,
+	)
+	return &DummyApplication{state: state}
+}
+
+func (dapp *DummyApplication) Open() types.AppContext {
+	dapp.mtx.Lock()
+	defer dapp.mtx.Unlock()
+	return &DummyAppContext{
+		app:   dapp,
+		state: dapp.state.Copy(),
+	}
+}
+
+func (dapp *DummyApplication) commitState(state merkle.Tree) {
+	dapp.mtx.Lock()
+	defer dapp.mtx.Unlock()
+	dapp.state = state.Copy()
+}
+
+func (dapp *DummyApplication) getState() merkle.Tree {
+	dapp.mtx.Lock()
+	defer dapp.mtx.Unlock()
+	return dapp.state.Copy()
+}
+
+//--------------------------------------------------------------------------------
+
+type DummyAppContext struct {
+	app   *DummyApplication
+	state merkle.Tree
+}
+
+func (dac *DummyAppContext) Echo(message string) string {
+	return message
+}
+
+func (dac *DummyAppContext) Info() []string {
+	return []string{Fmt("size:%v", dac.state.Size())}
+}
+
+func (dac *DummyAppContext) SetOption(key string, value string) types.RetCode {
+	return 0
+}
+
+func (dac *DummyAppContext) AppendTx(tx []byte) ([]types.Event, types.RetCode) {
+	dac.state.Set(tx, tx)
+	return nil, 0
+}
+
+func (dac *DummyAppContext) GetHash() ([]byte, types.RetCode) {
+	hash := dac.state.Hash()
+	return hash, 0
+}
+
+func (dac *DummyAppContext) Commit() types.RetCode {
+	dac.app.commitState(dac.state)
+	return 0
+}
+
+func (dac *DummyAppContext) Rollback() types.RetCode {
+	dac.state = dac.app.getState()
+	return 0
+}
+
+func (dac *DummyAppContext) AddListener(key string) types.RetCode {
+	return 0
+}
+
+func (dac *DummyAppContext) RemListener(key string) types.RetCode {
+	return 0
+}
+
+func (dac *DummyAppContext) Close() error {
+	return nil
+}