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pub mod protocol;
pub mod types;
use libp2p::{
core::{connection::ConnectionId, Multiaddr, PeerId},
swarm::{
NetworkBehaviour, NetworkBehaviourAction, NotifyHandler, OneShotHandler, PollParameters,
},
};
use std::{
collections::VecDeque,
task::{Context, Poll},
};
pub use crate::types::{QaulMessagingData, QaulMessagingReceived, QaulMessagingSend};
use protocol::QaulMessagingProtocol;
pub struct QaulMessaging {
events: VecDeque<
NetworkBehaviourAction<
QaulMessagingEvent,
<QaulMessaging as NetworkBehaviour>::ConnectionHandler,
>,
>,
#[allow(dead_code)]
config: QaulMessagingConfig,
}
impl QaulMessaging {
pub fn new(local_peer_id: PeerId) -> Self {
Self::from_config(QaulMessagingConfig::new(local_peer_id))
}
pub fn from_config(config: QaulMessagingConfig) -> Self {
QaulMessaging {
events: VecDeque::new(),
config,
}
}
pub fn send_qaul_messaging_message(&mut self, node_id: PeerId, data: Vec<u8>) {
let message = QaulMessagingData { data };
self.events
.push_back(NetworkBehaviourAction::NotifyHandler {
peer_id: node_id,
handler: NotifyHandler::Any,
event: message,
});
}
}
impl NetworkBehaviour for QaulMessaging {
type ConnectionHandler = OneShotHandler<QaulMessagingProtocol, QaulMessagingData, InnerMessage>;
type OutEvent = QaulMessagingEvent;
fn new_handler(&mut self) -> Self::ConnectionHandler {
Default::default()
}
fn addresses_of_peer(&mut self, _id: &PeerId) -> Vec<Multiaddr> {
Vec::new()
}
fn inject_connection_established(
&mut self,
_peer_id: &PeerId,
_connection_id: &ConnectionId,
_endpoint: &libp2p::core::ConnectedPoint,
_failed_addresses: Option<&Vec<Multiaddr>>,
_other_established: usize,
) {
}
fn inject_connection_closed(
&mut self,
_: &PeerId,
_: &ConnectionId,
_: &libp2p::core::ConnectedPoint,
_: <Self::ConnectionHandler as libp2p::swarm::IntoConnectionHandler>::Handler,
_remaining_established: usize,
) {
}
fn inject_event(
&mut self,
received_from: PeerId,
_connection: ConnectionId,
event: InnerMessage,
) {
let qaul_messaging_data = match event {
InnerMessage::Received(event) => event,
InnerMessage::Sent => return,
};
self.events.push_back(NetworkBehaviourAction::GenerateEvent(
QaulMessagingEvent::Message(QaulMessagingReceived {
received_from,
data: qaul_messaging_data.data,
}),
));
}
fn poll(
&mut self,
_: &mut Context<'_>,
_: &mut impl PollParameters,
) -> Poll<NetworkBehaviourAction<Self::OutEvent, Self::ConnectionHandler>> {
if let Some(event) = self.events.pop_front() {
return Poll::Ready(event);
}
Poll::Pending
}
}
#[derive(Debug)]
pub enum InnerMessage {
Received(QaulMessagingData),
Sent,
}
impl From<QaulMessagingData> for InnerMessage {
#[inline]
fn from(remote: QaulMessagingData) -> InnerMessage {
InnerMessage::Received(remote)
}
}
impl From<()> for InnerMessage {
#[inline]
fn from(_: ()) -> InnerMessage {
InnerMessage::Sent
}
}
#[derive(Debug)]
pub enum QaulMessagingEvent {
Message(QaulMessagingReceived),
}
pub struct QaulMessagingConfig {
pub local_peer_id: PeerId,
}
impl QaulMessagingConfig {
pub fn new(local_peer_id: PeerId) -> Self {
Self { local_peer_id }
}
}