Struct forest_actor::util::SetMultimap

pub struct SetMultimap<'a, BS>(_);

SetMultimap is a hamt with values that are also a hamt but are of the set variant. This allows hash sets to be indexable by an address.

Implementations

impl<'a, BS> SetMultimap<'a, BS> where
    BS: BlockStore, 

pub fn new(bs: &'a BS) -> Self

Initializes a new empty SetMultimap.

pub fn from_root(bs: &'a BS, cid: &Cid) -> Result<Self, Error>

Initializes a SetMultimap from a root Cid.

pub fn root(&mut self) -> Result<Cid, Error>

Retrieve root from the SetMultimap.

pub fn put(
    &mut self,
    key: ChainEpoch,
    value: DealID
) -> Result<(), Box<dyn StdError>>

Puts the DealID in the hash set of the key.

pub fn put_many(
    &mut self,
    key: ChainEpoch,
    values: &[DealID]
) -> Result<(), Box<dyn StdError>>

Puts slice of DealIDs in the hash set of the key.

pub fn get(
    &self,
    key: ChainEpoch
) -> Result<Option<Set<'a, BS>>, Box<dyn StdError>>

Gets the set at the given index of the SetMultimap

pub fn remove(
    &mut self,
    key: ChainEpoch,
    v: DealID
) -> Result<(), Box<dyn StdError>>

Removes a DealID from a key hash set.

pub fn remove_all(&mut self, key: ChainEpoch) -> Result<(), Box<dyn StdError>>

Removes set at index.

pub fn for_each<F>(
    &self,
    key: ChainEpoch,
    f: F
) -> Result<(), Box<dyn StdError>> where
    F: FnMut(DealID) -> Result<(), Box<dyn StdError>>, 

Iterates through keys and converts them to a DealID to call a function on each.