types

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 Go to latest Published: Dec 28, 2023 License: Apache-2.0 Imports: 13 Imported by: 0

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Overview

Package types package @Description:

Index

Constants

This section is empty.

Variables

View Source 
var SHARD_COUNT = 32

nolint

Functions

func NewUpdateBatch 

func NewUpdateBatch() protocol.StoreBatcher

NewUpdateBatch constructs an instance of a Batch @Description: @return protocol.StoreBatcher

Types

type BlockGetter 

type BlockGetter interface {

	// GetTxInfoOnly add next time
	// @Description:
	// @param txId
	// @return *storePb.TransactionStoreInfo
	// @return error
	GetTxInfoOnly(txId string) (*storePb.TransactionStoreInfo, error)
}

BlockGetter add next time @Description:

type ConcurrentMap 

type ConcurrentMap []*ConcurrentMapShared

ConcurrentMap A "thread" safe map of type string:Anything. To avoid lock bottlenecks this map is dived to several (SHARD_COUNT) map shards.

func New 

func New() ConcurrentMap

New Creates a new concurrent map. @Description: @return ConcurrentMap

func (ConcurrentMap) Clear 

func (m ConcurrentMap) Clear()

Clear removes all items from map. @Description: @receiver m

func (ConcurrentMap) Count 

func (m ConcurrentMap) Count() int

Count returns the number of elements within the map. @Description: @receiver m @return int

func (ConcurrentMap) Get 

func (m ConcurrentMap) Get(key string) (interface{}, bool)

Get retrieves an element from map under given key. @Description: @receiver m @param key @return interface{} @return bool

func (ConcurrentMap) GetShard 

func (m ConcurrentMap) GetShard(key string) *ConcurrentMapShared

GetShard returns shard under given key @Description: @receiver m @param key @return *ConcurrentMapShared

func (ConcurrentMap) Has 

func (m ConcurrentMap) Has(key string) bool

Has Looks up an item under specified key @Description: @receiver m @param key @return bool

func (ConcurrentMap) IsEmpty 

func (m ConcurrentMap) IsEmpty() bool

IsEmpty checks if map is empty. @Description: @receiver m @return bool

func (ConcurrentMap) Items 

func (m ConcurrentMap) Items() map[string]interface{}

Items returns all items as map[string]interface{} @Description: @receiver m @return map[string]interface{}

func (ConcurrentMap) Iter 

func (m ConcurrentMap) Iter() <-chan Tuple

Iter returns an iterator which could be used in a for range loop. @Description: Deprecated: using IterBuffered() will get a better performance @receiver m @return <-chan

func (ConcurrentMap) IterBuffered 

func (m ConcurrentMap) IterBuffered() <-chan Tuple

IterBuffered returns a buffered iterator which could be used in a for range loop. @Description: @receiver m @return <-chan

func (ConcurrentMap) IterCb 

func (m ConcurrentMap) IterCb(fn IterCb)

IterCb Callback based iterator, cheapest way to read @Description: all elements in a map. @receiver m @param fn

func (ConcurrentMap) Keys 

func (m ConcurrentMap) Keys() []string

Keys returns all keys as []string @Description: @receiver m @return []string

func (ConcurrentMap) MSet 

func (m ConcurrentMap) MSet(data map[string]interface{})

MSet add next time @Description: @receiver m @param data

func (ConcurrentMap) MarshalJSON 

func (m ConcurrentMap) MarshalJSON() ([]byte, error)

MarshalJSON Reviles ConcurrentMap "private" variables to json marshal. @Description: @receiver m @return []byte @return error

func (ConcurrentMap) Pop 

func (m ConcurrentMap) Pop(key string) (v interface{}, exists bool)

Pop removes an element from the map and returns it @Description: @receiver m @param key @return v @return exists

func (ConcurrentMap) Remove 

func (m ConcurrentMap) Remove(key string)

Remove removes an element from the map. @Description: @receiver m @param key

func (ConcurrentMap) RemoveCb 

func (m ConcurrentMap) RemoveCb(key string, cb RemoveCb) bool

RemoveCb locks the shard containing the key, retrieves its current value and calls the callback with those params If callback returns true and element exists, it will remove it from the map Returns the value returned by the callback (even if element was not present in the map) @Description: @receiver m @param key @param cb @return bool

func (ConcurrentMap) Set 

func (m ConcurrentMap) Set(key string, value interface{})

Set Sets the given value under the specified key. @Description: @receiver m @param key @param value

func (ConcurrentMap) SetIfAbsent 

func (m ConcurrentMap) SetIfAbsent(key string, value interface{}) bool

SetIfAbsent Sets the given value under the specified key if no value was associated with it. @Description: @receiver m @param key @param value @return bool

func (ConcurrentMap) Upsert 

func (m ConcurrentMap) Upsert(key string, value interface{}, cb UpsertCb) (res interface{})

Upsert Insert or Update - updates existing element or inserts a new one using UpsertCb @Description: @receiver m @param key @param value @param cb @return res

type ConcurrentMapShared 

type ConcurrentMapShared struct {
	sync.RWMutex // Read Write mutex, guards access to internal map.
	// contains filtered or unexported fields
}

ConcurrentMapShared A "thread" safe string to anything map. @Description:

type ConnectionPoolDBHandle 

type ConnectionPoolDBHandle struct {
	// contains filtered or unexported fields
}

ConnectionPoolDBHandle encapsulate lru cache,and logger @Description:

func NewConnectionPoolDBHandle 

func NewConnectionPoolDBHandle(size int, log protocol.Logger) *ConnectionPoolDBHandle

NewConnectionPoolDBHandle construct ConnectionPoolDBHandle @Description: @param size @param log @return *ConnectionPoolDBHandle

func (*ConnectionPoolDBHandle) Clear 

func (c *ConnectionPoolDBHandle) Clear()

Clear clear the cache @Description: @receiver c

func (*ConnectionPoolDBHandle) GetDBHandle 

func (c *ConnectionPoolDBHandle) GetDBHandle(contractName string) (protocol.SqlDBHandle, bool)

GetDBHandle retrieve db handler from cache @Description: @receiver c @param contractName @return protocol.SqlDBHandle @return bool

func (*ConnectionPoolDBHandle) SetDBHandle 

func (c *ConnectionPoolDBHandle) SetDBHandle(contractName string, handle protocol.SqlDBHandle)

SetDBHandle add db handler to cache @Description: @receiver c @param contractName @param handle

type EngineType 

type EngineType int32

EngineType database type 

const (
	UnknownDb EngineType = 0
	LevelDb   EngineType = 1
	TikvDb    EngineType = 2
	MySQL     EngineType = 3
	Sqlite    EngineType = 4
	BadgerDb  EngineType = 5
)

nolint

func (EngineType) LowerString 

func (t EngineType) LowerString() string

LowerString lower sql type @Description: @receiver t @return string

func (EngineType) String 

func (t EngineType) String() string

String return db type @Description: @receiver t @return string

type HistoryIteratorImpl 

type HistoryIteratorImpl struct {
	// contains filtered or unexported fields
}

HistoryIteratorImpl add next time @Description:

func NewHistoryIterator 

func NewHistoryIterator(contractName string, key []byte, dbItr historydb.HistoryIterator,
	resultStore resultdb.ResultDB, blockStore BlockGetter) *HistoryIteratorImpl

NewHistoryIterator add next time @Description: @param contractName @param key @param dbItr @param resultStore @param blockStore @return *HistoryIteratorImpl

func (*HistoryIteratorImpl) Next 

func (hs *HistoryIteratorImpl) Next() bool

Next add next time @Description: @receiver hs @return bool

func (*HistoryIteratorImpl) Release 

func (hs *HistoryIteratorImpl) Release()

Release add next time @Description: @receiver hs

func (*HistoryIteratorImpl) Value 

func (hs *HistoryIteratorImpl) Value() (*storePb.KeyModification, error)

Value add next time @Description: @receiver hs @return *storePb.KeyModification @return error

type IterCb 

type IterCb func(key string, v interface{})

IterCb Iterator callback,called for every key,value found in maps. RLock is held for all calls for a given shard therefore callback sess consistent view of a shard, but not across the shards

type RemoveCb 

type RemoveCb func(key string, v interface{}, exists bool) bool

RemoveCb is a callback executed in a map.RemoveCb() call, while Lock is held If returns true, the element will be removed from the map

type SavePoint 

type SavePoint struct {
	BlockHeight uint64 `gorm:"primarykey"`
}

SavePoint add next time @Description:

func (*SavePoint) GetCountSql 

func (b *SavePoint) GetCountSql() (string, []interface{})

GetCountSql 获得 得到数据总行数 sql 语句 @Description: @receiver b @return string @return []interface{}

func (*SavePoint) GetCreateTableSql 

func (b *SavePoint) GetCreateTableSql(dbType string) string

GetCreateTableSql 获得创建table的ddl语句 @Description: @receiver b @param dbType @return string

func (*SavePoint) GetInsertSql 

func (b *SavePoint) GetInsertSql(dbType string) (string, []interface{})

GetInsertSql 获得 insert sql 语句 @Description: @receiver b @param dbType @return string @return []interface{}

func (*SavePoint) GetTableName 

func (b *SavePoint) GetTableName() string

GetTableName 获得table name @Description: @receiver b @return string

func (*SavePoint) GetUpdateSql 

func (b *SavePoint) GetUpdateSql() (string, []interface{})

GetUpdateSql 获得 update sql 语句 @Description: @receiver b @return string @return []interface{}

type SqlVerifyPass 

type SqlVerifyPass struct {
}

SqlVerifyPass 用于测试场景，不对SQL语句进行检查，任意SQL检查都通过 @Description:

func (*SqlVerifyPass) VerifyDDLSql 

func (s *SqlVerifyPass) VerifyDDLSql(sql string) error

VerifyDDLSql 校验ddl语句 @Description: @receiver s @param sql @return error

func (*SqlVerifyPass) VerifyDMLSql 

func (s *SqlVerifyPass) VerifyDMLSql(sql string) error

VerifyDMLSql 校验dml语句 @Description: @receiver s @param sql @return error

func (*SqlVerifyPass) VerifyDQLSql 

func (s *SqlVerifyPass) VerifyDQLSql(sql string) error

VerifyDQLSql 校验dql语句 @Description: @receiver s @param sql @return error

type StandardSqlVerify 

type StandardSqlVerify struct {
}

StandardSqlVerify StandardSqlVerify 如果状态数据库是标准SQL语句，对标准SQL的SQL语句进行语法检查，不关心具体的SQL DB类型的语法差异 @Description:

func (*StandardSqlVerify) VerifyDDLSql 

func (s *StandardSqlVerify) VerifyDDLSql(sql string) error

VerifyDDLSql 校验ddl 语句是否合法 @Description: @receiver s @param sql @return error

func (*StandardSqlVerify) VerifyDMLSql 

func (s *StandardSqlVerify) VerifyDMLSql(sql string) error

VerifyDMLSql 校验 dml语句是否合法 @Description: @receiver s @param sql @return error

func (*StandardSqlVerify) VerifyDQLSql 

func (s *StandardSqlVerify) VerifyDQLSql(sql string) error

VerifyDQLSql 校验 dql语句是否合法 @Description: @receiver s @param sql @return error

type Tuple 

type Tuple struct {
	Key string
	Val interface{}
}

Tuple Used by the Iter & IterBuffered functions to wrap two variables together over a channel, @Description:

type TxHistoryIteratorImpl 

type TxHistoryIteratorImpl struct {
	// contains filtered or unexported fields
}

TxHistoryIteratorImpl add next time @Description:

func NewTxHistoryIterator 

func NewTxHistoryIterator(dbItr historydb.HistoryIterator, blockStore BlockGetter) *TxHistoryIteratorImpl

NewTxHistoryIterator add next time @Description: @param dbItr @param blockStore @return *TxHistoryIteratorImpl

func (*TxHistoryIteratorImpl) Next 

func (hs *TxHistoryIteratorImpl) Next() bool

Next add next time @Description: @receiver hs @return bool

func (*TxHistoryIteratorImpl) Release 

func (hs *TxHistoryIteratorImpl) Release()

Release add next time @Description: @receiver hs

func (*TxHistoryIteratorImpl) Value 

func (hs *TxHistoryIteratorImpl) Value() (*storePb.TxHistory, error)

Value add next time @Description: @receiver hs @return *storePb.TxHistory @return error

type UpdateBatch 

type UpdateBatch struct {
	// contains filtered or unexported fields
}

UpdateBatch encloses the details of multiple `updates` @Description:

func (*UpdateBatch) Delete 

func (batch *UpdateBatch) Delete(key []byte)

Delete deletes a Key and associated value,set value to nil @Description: @receiver batch @param key

func (*UpdateBatch) Get 

func (batch *UpdateBatch) Get(key []byte) ([]byte, error)

Get 根据key，返回value @Description: @receiver batch @param key @return []byte @return error

func (*UpdateBatch) Has 

func (batch *UpdateBatch) Has(key []byte) bool

Has 判断key是否存在 @Description: @receiver batch @param key @return bool

func (*UpdateBatch) KVs 

func (batch *UpdateBatch) KVs() map[string][]byte

KVs return map, only read @Description: @receiver batch @return map[string][]byte

func (*UpdateBatch) Keys 

func (batch *UpdateBatch) Keys() []string

Keys keys in map @Description: @receiver batch @return []string

func (*UpdateBatch) Len 

func (batch *UpdateBatch) Len() int

Len returns the number of entries in the batch @Description: @receiver batch @return int

func (*UpdateBatch) Merge 

func (batch *UpdateBatch) Merge(u protocol.StoreBatcher)

Merge merges other kvs to this updateBatch @Description: @receiver batch @param u

func (*UpdateBatch) Put 

func (batch *UpdateBatch) Put(key []byte, value []byte)

Put adds a KV @Description: @receiver batch @param key @param value

func (*UpdateBatch) ReSet 

func (batch *UpdateBatch) ReSet()

ReSet return map, only read @Description: @receiver batch

func (*UpdateBatch) Remove 

func (batch *UpdateBatch) Remove(key []byte)

Remove removes a Key and associated value @Description: @receiver batch @param key

func (*UpdateBatch) SplitBatch 

func (batch *UpdateBatch) SplitBatch(batchCnt uint64) []protocol.StoreBatcher

SplitBatch split other kvs to more updateBatchs division by batchCnt @Description: batchCnt: 拆分后，每个子batch，最多包含多少个k/v @receiver batch @param batchCnt @return []protocol.StoreBatcher

type UpsertCb 

type UpsertCb func(exist bool, valueInMap interface{}, newValue interface{}) interface{}

UpsertCb Callback to return new element to be inserted into the map It is called while lock is held, therefore it MUST NOT try to access other keys in same map, as it can lead to deadlock since Go sync.RWLock is not reentrant

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