Struct hotshot::traits::implementations::Libp2pNetwork

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pub struct Libp2pNetwork<T: NodeType> {
    inner: Arc<Libp2pNetworkInner<T>>,
}
Expand description

Networking implementation that uses libp2p generic over M which is the message type

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§inner: Arc<Libp2pNetworkInner<T>>

holds the state of the libp2p network

Implementations§

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impl<T: NodeType> Libp2pNetwork<T>

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pub async fn from_config( config: NetworkConfig<T::SignatureKey>, quorum_membership: T::Membership, gossip_config: GossipConfig, request_response_config: RequestResponseConfig, bind_address: Multiaddr, pub_key: &T::SignatureKey, priv_key: &<T::SignatureKey as SignatureKey>::PrivateKey, metrics: Libp2pMetricsValue, ) -> Result<Self>

Create and return a Libp2p network from a network config file and various other configuration-specific values.

§Errors

If we are unable to parse a Multiaddress

§Panics

If we are unable to calculate the replication factor

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pub fn is_ready(&self) -> bool

Returns whether or not the network is currently ready.

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pub async fn wait_for_ready(&self)

Returns only when the network is ready.

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pub async fn new( metrics: Libp2pMetricsValue, config: NetworkNodeConfig<T>, pk: T::SignatureKey, lookup_record_value: RecordValue<T::SignatureKey>, bootstrap_addrs: Arc<RwLock<Vec<(PeerId, Multiaddr)>>>, id: usize, reliability_config: Option<Box<dyn NetworkReliability>>, ) -> Result<Libp2pNetwork<T>, NetworkError>

Constructs new network for a node. Note that this network is unconnected. One must call connect in order to connect.

  • config: the configuration of the node
  • pk: public key associated with the node
  • bootstrap_addrs: rwlock containing the bootstrap addrs
§Errors

Returns error in the event that the underlying libp2p network is unable to create a network.

§Panics

This will panic if there are less than 5 bootstrap nodes

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fn spawn_node_lookup( &self, node_lookup_recv: BoundedReceiver<Option<(ViewNumber, T::SignatureKey)>>, )

Spawns task for looking up nodes pre-emptively

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fn spawn_connect( &mut self, id: usize, lookup_record_value: RecordValue<T::SignatureKey>, )

Initiates connection to the outside world

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async fn handle_recvd_events( &self, msg: NetworkEvent, sender: &UnboundedSender<Vec<u8>>, ) -> Result<(), NetworkError>

Handle events

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fn handle_event_generator( &self, sender: UnboundedSender<Vec<u8>>, network_rx: NetworkNodeReceiver, )

task to propagate messages to handlers terminates on shut down of network

Trait Implementations§

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impl<T: Clone + NodeType> Clone for Libp2pNetwork<T>

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fn clone(&self) -> Libp2pNetwork<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: NodeType> ConnectedNetwork<<T as NodeType>::SignatureKey> for Libp2pNetwork<T>

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fn recv_message<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<u8>, NetworkError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Receive one or many messages from the underlying network.

§Errors

If there is a network-related failure.

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fn update_view<'a, 'life0, 'async_trait, TYPES>( &'a self, view: u64, epoch: u64, membership: &'life0 TYPES::Membership, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where TYPES: NodeType<SignatureKey = T::SignatureKey> + 'a + 'async_trait, Self: 'async_trait, 'a: 'async_trait, 'life0: 'async_trait,

The libp2p view update is a special operation intrinsic to its internal behavior.

Libp2p needs to do a lookup because a libp2p address is not releated to hotshot keys. So in libp2p we store a mapping of HotShot key to libp2p address in a distributed hash table.

This means to directly message someone on libp2p we need to lookup in the hash table what their libp2p address is, using their HotShot public key as the key.

So the logic with libp2p is to prefetch upcomming leaders libp2p address to save time when we later need to direct message the leader our vote. Hence the use of the future view and leader to queue the lookups.

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fn wait_for_ready<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Blocks until the network is successfully initialized
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fn pause(&self)

Pauses the underlying network
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fn resume(&self)

Resumes the underlying network
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fn shut_down<'a, 'b>(&'a self) -> BoxSyncFuture<'b, ()>
where Self: 'b, 'a: 'b,

Blocks until the network is shut down
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fn broadcast_message<'life0, 'async_trait>( &'life0 self, message: Vec<u8>, topic: Topic, _broadcast_delay: BroadcastDelay, ) -> Pin<Box<dyn Future<Output = Result<(), NetworkError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

broadcast message to some subset of nodes blocking
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fn da_broadcast_message<'life0, 'async_trait>( &'life0 self, message: Vec<u8>, recipients: Vec<T::SignatureKey>, _broadcast_delay: BroadcastDelay, ) -> Pin<Box<dyn Future<Output = Result<(), NetworkError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

broadcast a message only to a DA committee blocking
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fn direct_message<'life0, 'async_trait>( &'life0 self, message: Vec<u8>, recipient: T::SignatureKey, ) -> Pin<Box<dyn Future<Output = Result<(), NetworkError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Sends a direct message to a specific node blocking
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fn queue_node_lookup( &self, view_number: ViewNumber, pk: T::SignatureKey, ) -> Result<(), TrySendError<Option<(ViewNumber, T::SignatureKey)>>>

queues lookup of a node Read more
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fn vid_broadcast_message<'life0, 'async_trait>( &'life0 self, messages: HashMap<K, Vec<u8>>, ) -> Pin<Box<dyn Future<Output = Result<(), NetworkError>> + Send + 'async_trait>>
where 'life0: 'async_trait, Self: 'async_trait,

send messages with vid shares to its recipients blocking
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fn is_primary_down(&self) -> bool

Is primary network down? Makes sense only for combined network
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impl<T: NodeType> Debug for Libp2pNetwork<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: NodeType> TestableNetworkingImplementation<T> for Libp2pNetwork<T>

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fn generator( expected_node_count: usize, num_bootstrap: usize, _network_id: usize, da_committee_size: usize, reliability_config: Option<Box<dyn NetworkReliability>>, _secondary_network_delay: Duration, ) -> AsyncGenerator<Arc<Self>>

Returns a boxed function f(node_id, public_key) -> Libp2pNetwork with the purpose of generating libp2p networks. Generates num_bootstrap bootstrap nodes. The remainder of nodes are normal nodes with sane defaults.

§Panics

Returned function may panic either:

  • An invalid configuration (probably an issue with the defaults of this function)
  • An inability to spin up the replica’s network
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fn in_flight_message_count(&self) -> Option<usize>

Get the number of messages in-flight. Read more

Auto Trait Implementations§

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impl<T> Freeze for Libp2pNetwork<T>

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impl<T> !RefUnwindSafe for Libp2pNetwork<T>

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impl<T> Send for Libp2pNetwork<T>

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impl<T> Sync for Libp2pNetwork<T>

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impl<T> Unpin for Libp2pNetwork<T>

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impl<T> !UnwindSafe for Libp2pNetwork<T>

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Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T