Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var ErrStoreEmpty = errors.New("Transient store is empty")
ErrStoreEmpty is used to indicate that there are no entries in transient store
Functions ¶
func GetTransientStorePath ¶
func GetTransientStorePath() string
GetTransientStorePath returns the filesystem path for temporarily storing the private rwset
Types ¶
type EndorserPvtSimulationResults ¶
type EndorserPvtSimulationResults struct {
ReceivedAtBlockHeight uint64
PvtSimulationResults *rwset.TxPvtReadWriteSet
}
EndorserPvtSimulationResults captures the details of the simulation results specific to an endorser
type RWSetScanner ¶
type RWSetScanner interface {
// Next returns the next EndorserPvtSimulationResults from the RWSetScanner.
// It may return nil, nil when it has no further data, and also may return an error
// on failure
Next() (*EndorserPvtSimulationResults, error)
// Close frees the resources associated with this RWSetScanner
Close()
}
RWSetScanner provides an iterator for EndorserPvtSimulationResults
type RwsetScanner ¶
type RwsetScanner struct {
// contains filtered or unexported fields
}
func (*RwsetScanner) Close ¶
func (scanner *RwsetScanner) Close()
Close releases resource held by the iterator
func (*RwsetScanner) Next ¶
func (scanner *RwsetScanner) Next() (*EndorserPvtSimulationResults, error)
Next moves the iterator to the next key/value pair. It returns whether the iterator is exhausted.
type Store ¶
type Store interface {
// Persist stores the private write set of a transaction in the transient store
// based on txid and the block height the private data was received at
Persist(txid string, blockHeight uint64, privateSimulationResults *rwset.TxPvtReadWriteSet) error
// GetTxPvtRWSetByTxid returns an iterator due to the fact that the txid may have multiple private
// write sets persisted from different endorsers (via Gossip)
GetTxPvtRWSetByTxid(txid string, filter ledger.PvtNsCollFilter) (RWSetScanner, error)
// PurgeByTxids removes private write sets of a given set of transactions from the
// transient store
PurgeByTxids(txids []string) error
// PurgeByHeight removes private write sets at block height lesser than
// a given maxBlockNumToRetain. In other words, Purge only retains private write sets
// that were persisted at block height of maxBlockNumToRetain or higher. Though the private
// write sets stored in transient store is removed by coordinator using PurgebyTxids()
// after successful block commit, PurgeByHeight() is still required to remove orphan entries (as
// transaction that gets endorsed may not be submitted by the client for commit)
PurgeByHeight(maxBlockNumToRetain uint64) error
// GetMinTransientBlkHt returns the lowest block height remaining in transient store
GetMinTransientBlkHt() (uint64, error)
Shutdown()
}
Store manages the storage of private write sets for a ledgerId. Ideally, a ledger can remove the data from this storage when it is committed to the permanent storage or the pruning of some data items is enforced by the policy
type StoreEnv ¶
type StoreEnv struct {
TestStoreProvider StoreProvider
TestStore Store
// contains filtered or unexported fields
}
StoreEnv provides the store env for testing
func NewTestStoreEnv ¶
NewTestStoreEnv construct a StoreEnv for testing
type StoreProvider ¶
StoreProvider provides an instance of a TransientStore
func NewStoreProvider ¶
func NewStoreProvider() StoreProvider
NewStoreProvider instantiates TransientStoreProvider
Source Files