kagome::storage::trie::TrieSerializerImpl Class Reference

#include <trie_serializer_impl.hpp>

Inheritance diagram for kagome::storage::trie::TrieSerializerImpl:

Collaboration diagram for kagome::storage::trie::TrieSerializerImpl:

Public Member Functions
	TrieSerializerImpl (std::shared_ptr< PolkadotTrieFactory > factory, std::shared_ptr< Codec > codec, std::shared_ptr< TrieStorageBackend > backend)
	~TrieSerializerImpl () override=default
RootHash	getEmptyRootHash () const override
outcome::result< RootHash >	storeTrie (PolkadotTrie &trie) override
outcome::result< std::shared_ptr< PolkadotTrie > >	retrieveTrie (const common::Buffer &db_key) const override
Public Member Functions inherited from kagome::storage::trie::TrieSerializer
virtual	~TrieSerializer ()=default

Private Member Functions
outcome::result< RootHash >	storeRootNode (TrieNode &node)
outcome::result< PolkadotTrie::NodePtr >	retrieveNode (const common::Buffer &db_key) const
outcome::result< PolkadotTrie::NodePtr >	retrieveNode (const std::shared_ptr< OpaqueTrieNode > &node) const

Private Attributes
std::shared_ptr< PolkadotTrieFactory >	trie_factory_
std::shared_ptr< Codec >	codec_
std::shared_ptr< TrieStorageBackend >	backend_

Detailed Description

Definition at line 23 of file trie_serializer_impl.hpp.

Constructor & Destructor Documentation

kagome::storage::trie::TrieSerializerImpl::TrieSerializerImpl	(	std::shared_ptr< PolkadotTrieFactory >	factory,
		std::shared_ptr< Codec >	codec,
		std::shared_ptr< TrieStorageBackend >	backend
	)

Definition at line 15 of file trie_serializer_impl.cpp.

kagome::storage::trie::TrieSerializerImpl::~TrieSerializerImpl ( )

overridedefault

Member Function Documentation

RootHash kagome::storage::trie::TrieSerializerImpl::getEmptyRootHash ( ) const

overridevirtual

Returns

root hash of an empty trie

Implements kagome::storage::trie::TrieSerializer.

Definition at line 27 of file trie_serializer_impl.cpp.

outcome::result< PolkadotTrie::NodePtr > kagome::storage::trie::TrieSerializerImpl::retrieveNode ( const common::Buffer &  db_key ) const

private

Fetches a node from the storage. A nullptr is returned in case that there is no entry for provided key. Mind that a branch node will have dummy nodes as its children

Definition at line 79 of file trie_serializer_impl.cpp.

outcome::result< PolkadotTrie::NodePtr > kagome::storage::trie::TrieSerializerImpl::retrieveNode ( const std::shared_ptr< OpaqueTrieNode > &  node ) const

private

Retrieves a node, replacing a dummy node to an actual node if needed

Definition at line 70 of file trie_serializer_impl.cpp.

outcome::result< std::shared_ptr< PolkadotTrie > > kagome::storage::trie::TrieSerializerImpl::retrieveTrie ( const common::Buffer &  db_key ) const

overridevirtual

Fetches a trie from the storage. A nullptr is returned in case that there is no entry for provided key.

Implements kagome::storage::trie::TrieSerializer.

Definition at line 40 of file trie_serializer_impl.cpp.

outcome::result< RootHash > kagome::storage::trie::TrieSerializerImpl::storeRootNode ( TrieNode &  node )

private

Writes a node to a persistent storage, recursively storing its descendants as well. Then replaces the node children to dummy nodes to avoid memory waste

Definition at line 54 of file trie_serializer_impl.cpp.

outcome::result< RootHash > kagome::storage::trie::TrieSerializerImpl::storeTrie ( PolkadotTrie &  trie )

overridevirtual

Writes a trie to a storage, recursively storing its nodes.

Implements kagome::storage::trie::TrieSerializer.

Definition at line 32 of file trie_serializer_impl.cpp.

Member Data Documentation

std::shared_ptr<TrieStorageBackend> kagome::storage::trie::TrieSerializerImpl::backend_

private

Definition at line 60 of file trie_serializer_impl.hpp.

std::shared_ptr<Codec> kagome::storage::trie::TrieSerializerImpl::codec_

private

Definition at line 59 of file trie_serializer_impl.hpp.

std::shared_ptr<PolkadotTrieFactory> kagome::storage::trie::TrieSerializerImpl::trie_factory_

private

Definition at line 58 of file trie_serializer_impl.hpp.

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The documentation for this class was generated from the following files:

• core/storage/trie/serialization/trie_serializer_impl.hpp
• core/storage/trie/serialization/trie_serializer_impl.cpp