trie

package
v1.1.0 Latest Latest
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 Go to latest Published: Jul 29, 2020 License: GPL-3.0 Imports: 32 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidLengthNode        = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowNode          = fmt.Errorf("proto: integer overflow")
	ErrUnexpectedEndOfGroupNode = fmt.Errorf("proto: unexpected end of group")
)
View Source 
var EmptyTrieHash = make([]byte, 32)

EmptyTrieHash returns the value with empty trie hash

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var ErrChildPosOutOfRange = errors.New("the position of the child is out of range")

ErrChildPosOutOfRange is raised when the position of a child in a branch node is less than 0 or greater than 16

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var ErrEmptyBranchNode = errors.New("the branch node is empty")

ErrEmptyBranchNode is raised when we reach an empty branch node (a node with no children)

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var ErrEmptyExtensionNode = errors.New("the extension node is empty")

ErrEmptyExtensionNode is raised when we reach an empty extension node (a node with no child)

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var ErrEmptyLeafNode = errors.New("the leaf node is empty")

ErrEmptyLeafNode is raised when we reach an empty leaf node (a node with no value)

View Source 
var ErrHashNotFound = errors.New("hash not found")

ErrHashNotFound signals that the given hash was not found in db or snapshots

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var ErrInvalidEncoding = errors.New("cannot decode this invalid encoding")

ErrInvalidEncoding is raised when the encoded information cannot be decoded

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var ErrInvalidIdentifier = errors.New("invalid identifier")

ErrInvalidIdentifier signals that the root hash has an invalid identifier

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var ErrInvalidLength = errors.New("invalid array length")

ErrInvalidLength signals that length of the array is invalid

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var ErrInvalidLevelValue = errors.New("invalid trie level in memory value")

ErrInvalidLevelValue signals that the given value for maxTrieLevelInMemory is invalid

View Source 
var ErrInvalidNode = errors.New("invalid node")

ErrInvalidNode is raised when we reach an invalid node

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var ErrInvalidTrieTopic = errors.New("invalid trie topic")

ErrInvalidTrieTopic signals that invalid trie topic has been provided

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var ErrNilBranchNode = errors.New("the branch node is nil")

ErrNilBranchNode is raised when we reach a nil branch node

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var ErrNilContext = errors.New("nil context")

ErrNilContext signals that nil context has been provided

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var ErrNilDatabase = errors.New("no database provided")

ErrNilDatabase is raised when a database operation is called, but no database is provided

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var ErrNilEvictionWaitingList = errors.New("nil eviction waiting list provided")

ErrNilEvictionWaitingList is raised when a nil eviction waiting list is provided

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var ErrNilExtensionNode = errors.New("the extension node is nil")

ErrNilExtensionNode is raised when we reach a nil extension node

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var ErrNilHasher = errors.New("no hasher provided")

ErrNilHasher is raised when the NewTrie() function is called, but a hasher isn't provided

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var ErrNilLeafNode = errors.New("the leaf node is nil")

ErrNilLeafNode is raised when we reach a nil leaf node

View Source 
var ErrNilMarshalizer = errors.New("no marshalizer provided")

ErrNilMarshalizer is raised when the NewTrie() function is called, but a marshalizer isn't provided

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var ErrNilNode = errors.New("the node is nil")

ErrNilNode is raised when we reach a nil node

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var ErrNilPathManager = errors.New("nil path manager")

ErrNilPathManager signals that a nil path manager has been provided

View Source 
var ErrNilRequestHandler = errors.New("the request handler is nil")

ErrNilRequestHandler is raised when the given request handler is nil

View Source 
var ErrNilTrie = errors.New("the trie is nil")

ErrNilTrie is raised when the trie is nil

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var ErrNilTrieStorage = errors.New("nil trie storage provided")

ErrNilTrieStorage is raised when a nil trie storage is provided

View Source 
var ErrNodeNotFound = errors.New("the node is not present in the trie")

ErrNodeNotFound is raised when we try to get a node that is not present in the trie

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var ErrTimeIsOut = errors.New("time is out")

ErrTimeIsOut signals that time is out

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var ErrValueTooShort = errors.New("cannot remove bytes from value because value is too short")

ErrValueTooShort is raised when we try to remove something from a value, and the value is too short

View Source 
var ErrWrongTypeAssertion = errors.New("wrong type assertion")

ErrWrongTypeAssertion signals that wrong type was provided

Functions

func NewIterator 

func NewIterator(trie data.Trie) (*iterator, error)

NewIterator creates a new instance of trie iterator

func NewTrie 

func NewTrie(
	trieStorage data.StorageManager,
	msh marshal.Marshalizer,
	hsh hashing.Hasher,
	maxTrieLevelInMemory uint,
) (*patriciaMerkleTrie, error)

NewTrie creates a new Patricia Merkle Trie

func NewTrieStorageManager 

func NewTrieStorageManager(
	db data.DBWriteCacher,
	marshalizer marshal.Marshalizer,
	hasher hashing.Hasher,
	snapshotDbCfg config.DBConfig,
	ewl data.DBRemoveCacher,
	generalConfig config.TrieStorageManagerConfig,
) (*trieStorageManager, error)

NewTrieStorageManager creates a new instance of trieStorageManager

func NewTrieStorageManagerWithoutPruning 

func NewTrieStorageManagerWithoutPruning(db data.DBWriteCacher) (*trieStorageManagerWithoutPruning, error)

NewTrieStorageManagerWithoutPruning creates a new instance of trieStorageManagerWithoutPruning

func NewTrieSyncer 

func NewTrieSyncer(
	requestHandler RequestHandler,
	interceptedNodes storage.Cacher,
	trie data.Trie,
	shardId uint32,
	topic string,
) (*trieSyncer, error)

NewTrieSyncer creates a new instance of trieSyncer

Types

type CollapsedBn 

type CollapsedBn struct {
	EncodedChildren [][]byte `protobuf:"bytes,1,rep,name=EncodedChildren,proto3" json:"EncodedChildren,omitempty"`
}

func (*CollapsedBn) Descriptor 

func (*CollapsedBn) Descriptor() ([]byte, []int)

func (*CollapsedBn) Equal 

func (this *CollapsedBn) Equal(that interface{}) bool

func (*CollapsedBn) GetEncodedChildren 

func (m *CollapsedBn) GetEncodedChildren() [][]byte

func (*CollapsedBn) GoString 

func (this *CollapsedBn) GoString() string

func (*CollapsedBn) Marshal 

func (m *CollapsedBn) Marshal() (dAtA []byte, err error)

func (*CollapsedBn) MarshalTo 

func (m *CollapsedBn) MarshalTo(dAtA []byte) (int, error)

func (*CollapsedBn) MarshalToSizedBuffer 

func (m *CollapsedBn) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*CollapsedBn) ProtoMessage 

func (*CollapsedBn) ProtoMessage()

func (*CollapsedBn) Reset 

func (m *CollapsedBn) Reset()

func (*CollapsedBn) Size 

func (m *CollapsedBn) Size() (n int)

func (*CollapsedBn) String 

func (this *CollapsedBn) String() string

func (*CollapsedBn) Unmarshal 

func (m *CollapsedBn) Unmarshal(dAtA []byte) error

func (*CollapsedBn) XXX_DiscardUnknown 

func (m *CollapsedBn) XXX_DiscardUnknown()

func (*CollapsedBn) XXX_Marshal 

func (m *CollapsedBn) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CollapsedBn) XXX_Merge 

func (m *CollapsedBn) XXX_Merge(src proto.Message)

func (*CollapsedBn) XXX_Size 

func (m *CollapsedBn) XXX_Size() int

func (*CollapsedBn) XXX_Unmarshal 

func (m *CollapsedBn) XXX_Unmarshal(b []byte) error

type CollapsedEn 

type CollapsedEn struct {
	Key          []byte `protobuf:"bytes,1,opt,name=Key,proto3" json:"Key,omitempty"`
	EncodedChild []byte `protobuf:"bytes,2,opt,name=EncodedChild,proto3" json:"EncodedChild,omitempty"`
}

func (*CollapsedEn) Descriptor 

func (*CollapsedEn) Descriptor() ([]byte, []int)

func (*CollapsedEn) Equal 

func (this *CollapsedEn) Equal(that interface{}) bool

func (*CollapsedEn) GetEncodedChild 

func (m *CollapsedEn) GetEncodedChild() []byte

func (*CollapsedEn) GetKey 

func (m *CollapsedEn) GetKey() []byte

func (*CollapsedEn) GoString 

func (this *CollapsedEn) GoString() string

func (*CollapsedEn) Marshal 

func (m *CollapsedEn) Marshal() (dAtA []byte, err error)

func (*CollapsedEn) MarshalTo 

func (m *CollapsedEn) MarshalTo(dAtA []byte) (int, error)

func (*CollapsedEn) MarshalToSizedBuffer 

func (m *CollapsedEn) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*CollapsedEn) ProtoMessage 

func (*CollapsedEn) ProtoMessage()

func (*CollapsedEn) Reset 

func (m *CollapsedEn) Reset()

func (*CollapsedEn) Size 

func (m *CollapsedEn) Size() (n int)

func (*CollapsedEn) String 

func (this *CollapsedEn) String() string

func (*CollapsedEn) Unmarshal 

func (m *CollapsedEn) Unmarshal(dAtA []byte) error

func (*CollapsedEn) XXX_DiscardUnknown 

func (m *CollapsedEn) XXX_DiscardUnknown()

func (*CollapsedEn) XXX_Marshal 

func (m *CollapsedEn) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CollapsedEn) XXX_Merge 

func (m *CollapsedEn) XXX_Merge(src proto.Message)

func (*CollapsedEn) XXX_Size 

func (m *CollapsedEn) XXX_Size() int

func (*CollapsedEn) XXX_Unmarshal 

func (m *CollapsedEn) XXX_Unmarshal(b []byte) error

type CollapsedLn 

type CollapsedLn struct {
	Key   []byte `protobuf:"bytes,1,opt,name=Key,proto3" json:"Key,omitempty"`
	Value []byte `protobuf:"bytes,2,opt,name=Value,proto3" json:"Value,omitempty"`
}

func (*CollapsedLn) Descriptor 

func (*CollapsedLn) Descriptor() ([]byte, []int)

func (*CollapsedLn) Equal 

func (this *CollapsedLn) Equal(that interface{}) bool

func (*CollapsedLn) GetKey 

func (m *CollapsedLn) GetKey() []byte

func (*CollapsedLn) GetValue 

func (m *CollapsedLn) GetValue() []byte

func (*CollapsedLn) GoString 

func (this *CollapsedLn) GoString() string

func (*CollapsedLn) Marshal 

func (m *CollapsedLn) Marshal() (dAtA []byte, err error)

func (*CollapsedLn) MarshalTo 

func (m *CollapsedLn) MarshalTo(dAtA []byte) (int, error)

func (*CollapsedLn) MarshalToSizedBuffer 

func (m *CollapsedLn) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*CollapsedLn) ProtoMessage 

func (*CollapsedLn) ProtoMessage()

func (*CollapsedLn) Reset 

func (m *CollapsedLn) Reset()

func (*CollapsedLn) Size 

func (m *CollapsedLn) Size() (n int)

func (*CollapsedLn) String 

func (this *CollapsedLn) String() string

func (*CollapsedLn) Unmarshal 

func (m *CollapsedLn) Unmarshal(dAtA []byte) error

func (*CollapsedLn) XXX_DiscardUnknown 

func (m *CollapsedLn) XXX_DiscardUnknown()

func (*CollapsedLn) XXX_Marshal 

func (m *CollapsedLn) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CollapsedLn) XXX_Merge 

func (m *CollapsedLn) XXX_Merge(src proto.Message)

func (*CollapsedLn) XXX_Size 

func (m *CollapsedLn) XXX_Size() int

func (*CollapsedLn) XXX_Unmarshal 

func (m *CollapsedLn) XXX_Unmarshal(b []byte) error

type InterceptedTrieNode 

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

InterceptedTrieNode implements intercepted data interface and is used when trie nodes are intercepted

func NewInterceptedTrieNode 

func NewInterceptedTrieNode(
	buff []byte,
	marshalizer marshal.Marshalizer,
	hasher hashing.Hasher,
) (*InterceptedTrieNode, error)

NewInterceptedTrieNode creates a new instance of InterceptedTrieNode

func (*InterceptedTrieNode) CheckValidity 

func (inTn *InterceptedTrieNode) CheckValidity() error

CheckValidity checks if the intercepted data is valid

func (*InterceptedTrieNode) EncodedNode 

func (inTn *InterceptedTrieNode) EncodedNode() []byte

EncodedNode returns the intercepted encoded node

func (*InterceptedTrieNode) Fee added in v1.0.102 

func (inTn *InterceptedTrieNode) Fee() *big.Int

Fee returns big.NewInt(0)

func (*InterceptedTrieNode) Hash 

func (inTn *InterceptedTrieNode) Hash() []byte

Hash returns the hash of the intercepted node

func (*InterceptedTrieNode) Identifiers added in v1.0.110 

func (inTn *InterceptedTrieNode) Identifiers() [][]byte

Identifiers returns the identifiers used in requests

func (*InterceptedTrieNode) IsForCurrentShard 

func (inTn *InterceptedTrieNode) IsForCurrentShard() bool

IsForCurrentShard checks if the intercepted data is for the current shard

func (*InterceptedTrieNode) IsInterfaceNil 

func (inTn *InterceptedTrieNode) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*InterceptedTrieNode) Nonce added in v1.0.102 

func (inTn *InterceptedTrieNode) Nonce() uint64

Nonce return 0

func (*InterceptedTrieNode) ReceiverShardId added in v1.0.102 

func (inTn *InterceptedTrieNode) ReceiverShardId() uint32

ReceiverShardId returns 0

func (*InterceptedTrieNode) SenderAddress added in v1.0.102 

func (inTn *InterceptedTrieNode) SenderAddress() []byte

SenderAddress returns nil

func (*InterceptedTrieNode) SenderShardId added in v1.0.102 

func (inTn *InterceptedTrieNode) SenderShardId() uint32

SenderShardId returns 0

func (*InterceptedTrieNode) String added in v0.0.5 

func (inTn *InterceptedTrieNode) String() string

String returns the trie node's most important fields as string

func (*InterceptedTrieNode) Type 

func (inTn *InterceptedTrieNode) Type() string

Type returns the type of this intercepted data

type RequestHandler added in v1.0.102 

type RequestHandler interface {
	RequestTrieNodes(destShardID uint32, hashes [][]byte, topic string)
	RequestInterval() time.Duration
	IsInterfaceNil() bool
}

RequestHandler defines the methods through which request to data can be made

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