Struct holochain::core::workflow::sys_validation_workflow::validation_deps::ValidationDependencies

pub struct ValidationDependencies { /* private fields */ }

A collection of validation dependencies for the current set of DHT ops requiring validation. This is used as an in-memory cache of dependency info, held across all validation workflow calls, to minimize the amount of network and database calls needed to check if dependencies have been satisfied

Implementations

impl ValidationDependencies

pub fn new() -> Self

pub fn has(&mut self, hash: &ActionHash) -> bool

Check whether a given dependency is currently held. Note that we may have this dependency as a key but the state won’t contain the dependency because this is how we’re tracking ops we know we need to fetch from the network.

pub fn get( &mut self, hash: &ActionHash ) -> Option<&mut ValidationDependencyState>

Get the state of a given dependency. This should always return a value because we should know about the depdendency by examining the ops that are being validated. However, the dependency may not be found on the DHT yet.

pub fn get_missing_hashes(&self) -> Vec<ActionHash>

Get the hashes of all dependencies that are currently missing from the DHT.

pub fn get_network_fetched_hashes(&self) -> Vec<ActionHash>

Get the hashes of all dependencies that have been fetched from the network. We need to let the incoming dht ops workflow know about these so that it can ingest them and get them validated.

pub fn insert( &mut self, action: SignedActionHashed, source: CascadeSource ) -> bool

Insert a record which was found after this set of dependencies was created.

pub fn clear_retained_deps(&mut self)

Forget which dependencies have been accessed since this method was last called. This is intended to be used with Self::purge_held_deps to remove any dependencies that are no longer needed.

pub fn purge_held_deps(&mut self)

Remove any dependencies that are no longer needed for validation.

pub fn merge(&mut self, other: Self)

Merge the dependencies from another set into this one.

Trait Implementations

impl Default for ValidationDependencies

fn default() -> Self

Returns the “default value” for a type.

impl FromIterator<(HoloHash<Action>, ValidationDependencyState)> for ValidationDependencies

fn from_iter<T: IntoIterator<Item = (ActionHash, ValidationDependencyState)>>( iter: T ) -> Self

Creates a value from an iterator.