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use crate::Id;
use std::net::SocketAddr;
use super::builder::Port;
use super::{Chart, Entry};
impl<const N: usize> Chart<N, Port> {
/// Returns an vector with each discovered node's socketadresses.
/// # Note
/// - vector order is random
/// - only availible for Chart configured with
/// [`ChartBuilder::with_service_ports`](crate::ChartBuilder::with_service_ports)
/// and build using [`ChartBuilder::finish`](crate::ChartBuilder::finish).
/// ```rust
/// # use std::error::Error;
/// # use instance_chart::{discovery, ChartBuilder};
/// #
/// # #[tokio::main]
/// # async fn main() -> Result<(), Box<dyn Error>> {
/// let chart = ChartBuilder::new()
/// .with_id(1)
/// # .with_discovery_port(43785)
/// .with_service_ports([8042, 8043, 8044])
/// .finish()?;
/// let maintain = discovery::maintain(chart.clone());
/// let _ = tokio::spawn(maintain); // maintain task will run forever
/// let port_lists = chart.addr_lists_vec();
/// # Ok(())
/// # }
/// ```
// lock poisoning happens only on crash in another thread, in which
// case panicing here is expected
#[allow(clippy::missing_panics_doc)]
#[must_use]
pub fn addr_lists_vec(&self) -> Vec<(Id, [SocketAddr; N])> {
self.map
.lock()
.unwrap()
.iter()
.map(|(id, entry)| {
let Entry { ip, msg: ports } = entry;
let addr = ports.map(|p| SocketAddr::new(*ip, p));
(*id, addr)
})
.collect()
}
}
impl<const N: usize> Chart<N, Port> {
/// Returns a vector over each discoverd node's nth-socketadress
/// # Note
/// - vector order is random
/// - only availible for Chart configured with
/// [`ChartBuilder::with_service_ports`](crate::ChartBuilder::with_service_ports)
/// and build using [`ChartBuilder::finish`](crate::ChartBuilder::finish).
///
/// # Examples
/// ```rust
/// # use std::error::Error;
/// # use instance_chart::{discovery, ChartBuilder};
/// #
/// # #[tokio::main]
/// # async fn main() -> Result<(), Box<dyn Error>> {
/// let web_server_port = 8043;
/// let chart = ChartBuilder::new()
/// .with_id(1)
/// # .with_discovery_port(43784)
/// .with_service_ports([8042, web_server_port, 8044])
/// .finish()?;
/// let maintain = discovery::maintain(chart.clone());
/// let _ = tokio::spawn(maintain); // maintain task will run forever
/// let web_server_ports = chart.nth_addr_vec::<2>();
/// # Ok(())
/// # }
/// ```
// lock poisoning happens only on crash in another thread, in which
// case panicing here is expected
#[allow(clippy::missing_panics_doc)]
#[must_use]
pub fn nth_addr_vec<const IDX: usize>(&self) -> Vec<(Id, SocketAddr)> {
self.map
.lock()
.unwrap()
.iter()
.map(|(id, entry)| {
let Entry { ip, msg: ports } = entry;
let port = ports[IDX];
(*id, SocketAddr::new(*ip, port))
})
.collect()
}
}
impl<'a> Chart<1, Port> {
/// Returns a vector over each discoverd nodes's socketadress
/// # Note
/// - vector order is random
/// - only availible for Chart configured with
/// [`ChartBuilder::with_service_port`](crate::ChartBuilder::with_service_port)
/// and build using [`ChartBuilder::finish`](crate::ChartBuilder::finish).
/// ```rust
/// # use std::error::Error;
/// # use instance_chart::{discovery, ChartBuilder};
/// #
/// # #[tokio::main]
/// # async fn main() -> Result<(), Box<dyn Error>> {
/// let chart = ChartBuilder::new()
/// .with_id(1)
/// # .with_discovery_port(43782)
/// .with_service_port(8042)
/// .finish()?;
/// let maintain = discovery::maintain(chart.clone());
/// let _ = tokio::spawn(maintain); // maintain task will run forever
/// let ports = chart.addr_vec();
/// # Ok(())
/// # }
/// ```
// lock poisoning happens only on crash in another thread, in which
// case panicing here is expected
#[allow(clippy::missing_panics_doc)]
#[must_use]
pub fn addr_vec(&'a self) -> Vec<(Id, SocketAddr)> {
self.map
.lock()
.unwrap()
.iter()
.map(|(id, entry)| {
let Entry { ip, msg: [port] } = entry;
(*id, SocketAddr::new(*ip, *port))
})
.collect()
}
}
#[cfg(test)]
mod tests {
use crate::chart::{Entry, Interval};
use crate::{Chart, Id};
use serde::Serialize;
use std::collections::{HashMap, HashSet};
use std::fmt::Debug;
use std::net::{IpAddr, Ipv4Addr, SocketAddr};
use std::sync::{Arc, Mutex};
use tokio::net::UdpSocket;
impl<const N: usize, T: Serialize + Debug + Clone> Chart<N, T> {
pub async fn test<F>(mut gen_kv: F) -> Self
where
F: FnMut(u8) -> (Id, Entry<[T; N]>) + Copy,
{
let msg = gen_kv(0).1.msg;
let map: HashMap<Id, Entry<_>> = (1..10).map(gen_kv).collect();
Self {
header: 0,
service_id: 0,
msg,
sock: Arc::new(UdpSocket::bind("127.0.0.1:0").await.unwrap()),
interval: Interval::test(),
map: Arc::new(Mutex::new(map)),
broadcast: tokio::sync::broadcast::channel(1).0,
}
}
}
#[tokio::test]
async fn iter_ports() {
fn test_kv(n: u8) -> (Id, Entry<[u16; 1]>) {
let ip = IpAddr::V4(Ipv4Addr::new(n, 0, 0, 1));
let port = 8000 + n as u16;
(n as u64, Entry { ip, msg: [port] })
}
let chart = Chart::test(test_kv).await;
let iter: HashSet<_> = chart.addr_vec().into_iter().collect();
let correct: HashSet<_> = (1..10)
.map(test_kv)
.map(|(id, e)| (id, SocketAddr::new(e.ip, e.msg[0])))
.collect();
assert_eq!(iter, correct)
}
fn entry_3ports(n: u8) -> (Id, Entry<[u16; 3]>) {
let ip = IpAddr::V4(Ipv4Addr::new(n, 0, 0, 1));
let port1 = 8000 + n as u16;
let port2 = 7000 + n as u16;
let port3 = 6000 + n as u16;
(
n as u64,
Entry {
ip,
msg: [port1, port2, port3],
},
)
}
#[tokio::test]
async fn iter_addr_lists() {
let chart = Chart::test(entry_3ports).await;
let iter: HashSet<_> = chart.addr_lists_vec().into_iter().collect();
let correct: HashSet<_> = (1..10)
.map(entry_3ports)
.map(|(id, e)| {
let addr = e.msg.map(|p| (e.ip, p)).map(SocketAddr::from);
(id, addr)
})
.collect();
assert_eq!(iter, correct)
}
#[tokio::test]
async fn iter_nth_port() {
let chart = Chart::test(entry_3ports).await;
let iter: HashSet<_> = chart.nth_addr_vec::<1>().into_iter().collect();
let correct: HashSet<_> = (1..10)
.map(entry_3ports)
.map(|(id, e)| (id, SocketAddr::new(e.ip, e.msg[1])))
.collect();
assert_eq!(iter, correct)
}
}