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WIP app.go...

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This commit is contained in:
Jae Kwon 2017-12-21 23:30:44 -08:00
parent 623e77d5a2
commit e308810a51
1 changed files with 37 additions and 23 deletions
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60
app/app.go
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@ -13,7 +13,7 @@ import (
"github.com/cosmos/cosmos-sdk/types"
)
const mainKeyHeader = "header"
var mainHeaderKey = "header"
// App - The ABCI application
type App struct {
@ -22,12 +22,15 @@ type App struct {
// App name from abci.Info
name string
// DeliverTx (main) state
store types.MultiStore
// Main (uncached) state
store types.CommitMultiStore
// CheckTx state
// CheckTx state, a cache-wrap of store.
storeCheck types.CacheMultiStore
// DeliverTx state, a cache-wrap of store.
storeDeliver types.CacheMultiStore
// Current block header
header *abci.Header
@ -47,7 +50,11 @@ func NewApp(name string) *App {
}
}
func (app *App) SetStore(store types.MultiStore) {
func (app *App) Name() string {
return app.name
}
func (app *App) SetCommitStore(store types.CommitMultiStore) {
app.store = store
}
@ -73,33 +80,34 @@ func (app *App) initFromStore() error {
lastCommitID := store.LastCommitID()
main := store.GetKVStore("main")
header := (*abci.Header)(nil)
storeCheck := store.CacheMultiStore()
// Main store should exist.
if store.GetKVStore("main") == nil {
return errors.New("App expects MultiStore with 'main' KVStore")
}
// If we've committed before, we expect main://<mainKeyHeader>.
// If we've committed before, we expect main://<mainHeaderKey>.
if !lastCommitID.IsZero() {
headerBytes, ok := main.Get(mainKeyHeader)
if !ok {
errStr := fmt.Sprintf("Version > 0 but missing key %s", mainKeyHeader)
headerBytes := main.Get(mainHeaderKey)
if len(headerBytes) == 0 {
errStr := fmt.Sprintf("Version > 0 but missing key %s", mainHeaderKey)
return errors.New(errStr)
}
err = proto.Unmarshal(headerBytes, header)
err := proto.Unmarshal(headerBytes, header)
if err != nil {
return errors.Wrap(err, "Failed to parse Header")
}
if header.Height != lastCommitID.Version {
errStr := fmt.Sprintf("Expected main://%s.Height %v but got %v", mainKeyHeader, version, headerHeight)
lastVersion := lastCommitID.Version
if header.Height != lastVersion {
errStr := fmt.Sprintf("Expected main://%s.Height %v but got %v", mainHeaderKey, lastVersion, header.Height)
return errors.New(errStr)
}
}
// Set App state.
app.header = header
app.storeCheck = app.store.CacheMultiStore()
app.storeCheck = nil
app.storeDeliver = nil
app.valUpdates = nil
return nil
@ -113,34 +121,40 @@ func (app *App) Info(req abci.RequestInfo) abci.ResponseInfo {
lastCommitID := app.store.LastCommitID()
return abci.ResponseInfo{
Data: app.Name,
Data: app.name,
LastBlockHeight: lastCommitID.Version,
LastBlockAppHash: lastCommitID.Hash,
}
}
// Implements ABCI
func (app *App) SetOption(req abci.RequestSetOption) abci.ResponseSetOption {
return "Not Implemented"
func (app *App) SetOption(req abci.RequestSetOption) (res abci.ResponseSetOption) {
// TODO: Implement
return
}
// Implements ABCI
func (app *App) InitChain(req abci.RequestInitChain) abci.ResponseInitChain {
func (app *App) InitChain(req abci.RequestInitChain) (res abci.ResponseInitChain) {
// TODO: Use req.Validators
return
}
// Implements ABCI
func (app *App) Query(req abci.RequestQuery) abci.ResponseQuery {
func (app *App) Query(req abci.RequestQuery) (res abci.ResponseQuery) {
// TODO: See app/query.go
return
}
// Implements ABCI
func (app *App) BeginBlock(req abci.RequestBeginBlock) abci.ResponseBeginBlock {
func (app *App) BeginBlock(req abci.RequestBeginBlock) (res abci.ResponseBeginBlock) {
app.header = req.Header
app.storeDeliver = app.store.CacheMultiStore()
app.storeCheck = app.store.CacheMultiStore()
return
}
// Implements ABCI
func (app *App) CheckTx(txBytes []byte) abci.ResponseCheckTx {
func (app *App) CheckTx(txBytes []byte) (res abci.ResponseCheckTx) {
// Initialize arguments to Handler.
var isCheckTx = true
@ -163,7 +177,7 @@ func (app *App) CheckTx(txBytes []byte) abci.ResponseCheckTx {
}
// Implements ABCI
func (app *App) DeliverTx(txBytes []byte) abci.ResponseDeliverTx {
func (app *App) DeliverTx(txBytes []byte) (res abci.ResponseDeliverTx) {
// Initialize arguments to Handler.
var isCheckTx = false
@ -193,7 +207,6 @@ func (app *App) DeliverTx(txBytes []byte) abci.ResponseDeliverTx {
// Implements ABCI
func (app *App) EndBlock(req abci.RequestEndBlock) (res abci.ResponseEndBlock) {
// XXX Update to res.Updates.
res.ValidatorUpdates = app.valUpdates
app.valUpdates = nil
return
@ -201,6 +214,7 @@ func (app *App) EndBlock(req abci.RequestEndBlock) (res abci.ResponseEndBlock) {
// Implements ABCI
func (app *App) Commit() (res abci.ResponseCommit) {
app.storeDeliver.Write()
commitID := app.store.Commit()
app.logger.Debug("Commit synced",
"commit", commitID,