Commit graph

11 commits

Author SHA1 Message Date
Roman Khimov
86cb4ed80f mpt: add the notion of MPT mode
It directly affects the storage format, so it's important. ModeGC is not used
at the moment, but defined for future extensibility.
2022-02-10 19:15:18 +03:00
Evgeniy Stratonikov
bd2b1a0521 mpt: add Size method to trie nodes
Knowing serialized size of the node is useful for
preallocating byte-slice in advance.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
2021-08-06 12:01:16 +03:00
Evgeniy Stratonikov
db80ef28df mpt: move empty hash node in a separate type
We use them quite frequently (consider children for a new branch
node) and it is better to get rid of unneeded allocations.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
2021-08-06 12:01:16 +03:00
Evgeniy Stratonikov
5b1f6207de mpt: reduce max key length
The constant used is actually a nibbled-path restriction.
Clarify this and make them private.
2021-06-04 11:09:17 +03:00
Anna Shaleva
7f038bd465 mpt: split HashNode in two types
First type is non-empty HashNode, and the second one is an Empty node.
2021-04-01 10:19:57 +03:00
Anna Shaleva
b9927c39ee mpt: refactor nodes serialisation
It should be serialised with type in case if it's a children node.
The type can be either HashT or EmptyT.
2021-04-01 10:19:57 +03:00
Anna Shaleva
7dc9f0bde2 mpt: swap Leaf and Node types 2021-04-01 10:17:08 +03:00
Evgenii Stratonikov
7d91a3a89e pkg: move internal/ package to the root directory
This way we can use it in scripts and cli.
2020-11-24 16:39:56 +03:00
Evgenii Stratonikov
85f927d892 mpt: implement reference counting
Also postpone MPT initialization until `storeBlock`
because we need to read-and-check or save info about refcounting
depending on starting height.
2020-11-20 16:50:30 +03:00
Evgenii Stratonikov
f0b85f8af7 mpt: implement JSON marshaling/unmarshaling
Because there is no distinct type field in JSONized nodes, distinction
is made via payload itself, thus all unmarshaling is done via
NodeObject.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-30 12:42:15 +03:00
Evgenii Stratonikov
dc6741bce7 mpt: implement MPT trie
MPT is a trie with a branching factor = 16, i.e. it consists of sequences in
16-element alphabet.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-30 12:42:15 +03:00