trie

package
v1.0.111 Latest Latest
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Published: Apr 30, 2020 License: GPL-3.0 Imports: 30 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

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var (
	ErrInvalidLengthNode        = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowNode          = fmt.Errorf("proto: integer overflow")
	ErrUnexpectedEndOfGroupNode = fmt.Errorf("proto: unexpected end of group")
)
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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)

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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 ErrInvalidHash = errors.New("the received hash is invalid")

ErrInvalidHash is raised when the given hash is invalid

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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 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

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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

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

ErrNilRequestHandler is raised when the given request handler is nil

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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

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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

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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,
) (*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) CreateEndOfProcessingTriggerNode

func (inTn *InterceptedTrieNode) CreateEndOfProcessingTriggerNode()

CreateEndOfProcessingTriggerNode changes the hash of the current node by appending the hash to the current hash. This construction will be used to trigger the end of processing for all of the received data

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() state.AddressContainer

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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