README
¶
Dummy
There are two app's here: the DummyApplication and the PersistentDummyApplication.
DummyApplication
The DummyApplication is a simple merkle key-value store.
Transactions of the form key=value are stored as key-value pairs in the tree.
Transactions without an = sign set the value to the key.
The app has no replay protection (other than what the mempool provides).
PersistentDummyApplication
The PersistentDummyApplication wraps the DummyApplication and provides two additional features:
- persistence of state across app restarts (using Tendermint's ABCI-Handshake mechanism)
- validator set changes
The state is persisted in leveldb along with the last block committed, and the Handshake allows any necessary blocks to be replayed. Validator set changes are effected using the following transaction format:
val:pubkey1/power1,addr2/power2,addr3/power3"
where power1 is the new voting power for the validator with pubkey1 (possibly a new one).
There is no sybil protection against new validators joining.
Validators can be removed by setting their power to 0.
Documentation
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Index ¶
- Constants
- func Compare(studentAdd string, projectAdd string) bool
- func MakeValSetChangeTx(pubkey []byte, power uint64) []byte
- func SaveLastBlock(db dbm.DB, lastBlock LastBlockInfo)
- type LastBlockInfo
- type PersistentStorageApplication
- func (app *PersistentStorageApplication) BeginBlock(hash []byte, header *types.Header)
- func (app *PersistentStorageApplication) CheckTx(tx []byte) types.Result
- func (app *PersistentStorageApplication) Commit() types.Result
- func (app *PersistentStorageApplication) DeliverTx(tx []byte) types.Result
- func (app *PersistentStorageApplication) EndBlock(height uint64) (resEndBlock types.ResponseEndBlock)
- func (app *PersistentStorageApplication) Info() (resInfo types.ResponseInfo)
- func (app *PersistentStorageApplication) InitChain(validators []*types.Validator)
- func (app *PersistentStorageApplication) Query(reqQuery types.RequestQuery) types.ResponseQuery
- func (app *PersistentStorageApplication) SetLogger(l log.Logger)
- func (app *PersistentStorageApplication) SetOption(key string, value string) (log string)
- func (app *PersistentStorageApplication) Validators() (validators []*types.Validator)
- type StorageApplication
- func (app *StorageApplication) CheckTx(tx []byte) types.Result
- func (app *StorageApplication) Commit() types.Result
- func (app *StorageApplication) DeliverTx(tx []byte) types.Result
- func (app *StorageApplication) Info() (resInfo types.ResponseInfo)
- func (app *StorageApplication) Query(reqQuery types.RequestQuery) (resQuery types.ResponseQuery)
Constants ¶
const ( WriteSet byte = 0x01 WriteRem byte = 0x02 )
Transaction type bytes
const (
PathDoc string = "/Users/b/Documents/"
)
const (
ValidatorSetChangePrefix string = "val:"
)
Variables ¶
This section is empty.
Functions ¶
func MakeValSetChangeTx ¶
func SaveLastBlock ¶
func SaveLastBlock(db dbm.DB, lastBlock LastBlockInfo)
Types ¶
type LastBlockInfo ¶
func LoadLastBlock ¶
func LoadLastBlock(db dbm.DB) (lastBlock LastBlockInfo)
Get the last block from the db
type PersistentStorageApplication ¶
type PersistentStorageApplication struct {
// contains filtered or unexported fields
}
func NewPersistentStorageApplication ¶
func NewPersistentStorageApplication(dbDir string) *PersistentStorageApplication
func (*PersistentStorageApplication) BeginBlock ¶
func (app *PersistentStorageApplication) BeginBlock(hash []byte, header *types.Header)
Track the block hash and header information
func (*PersistentStorageApplication) CheckTx ¶
func (app *PersistentStorageApplication) CheckTx(tx []byte) types.Result
func (*PersistentStorageApplication) Commit ¶
func (app *PersistentStorageApplication) Commit() types.Result
func (*PersistentStorageApplication) DeliverTx ¶
func (app *PersistentStorageApplication) DeliverTx(tx []byte) types.Result
tx is either "key=value" or just arbitrary bytes
func (*PersistentStorageApplication) EndBlock ¶
func (app *PersistentStorageApplication) EndBlock(height uint64) (resEndBlock types.ResponseEndBlock)
Update the validator set
func (*PersistentStorageApplication) Info ¶
func (app *PersistentStorageApplication) Info() (resInfo types.ResponseInfo)
func (*PersistentStorageApplication) InitChain ¶
func (app *PersistentStorageApplication) InitChain(validators []*types.Validator)
Save the validators in the merkle tree
func (*PersistentStorageApplication) Query ¶
func (app *PersistentStorageApplication) Query(reqQuery types.RequestQuery) types.ResponseQuery
func (*PersistentStorageApplication) SetLogger ¶
func (app *PersistentStorageApplication) SetLogger(l log.Logger)
func (*PersistentStorageApplication) SetOption ¶
func (app *PersistentStorageApplication) SetOption(key string, value string) (log string)
func (*PersistentStorageApplication) Validators ¶
func (app *PersistentStorageApplication) Validators() (validators []*types.Validator)
type StorageApplication ¶
type StorageApplication struct {
types.BaseApplication
// contains filtered or unexported fields
}
func NewStorageApplication ¶
func NewStorageApplication() *StorageApplication
func (*StorageApplication) Commit ¶
func (app *StorageApplication) Commit() types.Result
func (*StorageApplication) DeliverTx ¶
func (app *StorageApplication) DeliverTx(tx []byte) types.Result
tx is either "0x01|len(len(key))|len(key)|key|len(len(value))|len(value)|value" or "0x02|len(len(key))|len(key)|key|len(len(value))|len(value)|value"
func (*StorageApplication) Info ¶
func (app *StorageApplication) Info() (resInfo types.ResponseInfo)
func (*StorageApplication) Query ¶
func (app *StorageApplication) Query(reqQuery types.RequestQuery) (resQuery types.ResponseQuery)
Source Files