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//! `sharded_thread` is a module to provides any runtime efficient
//! channels-like abstractions.
/// A mesh to connect multiple executor together.
///
/// A mesh is composed of multiple peers and a way to communicate between each
/// of these peers. Everyone is the mesh can communicate with the others peer.
///
/// # Examples
///
/// A thread-per-core architecture with `monoio`.
///
/// ```rust
/// use sharded_thread::{mesh::MeshBuilder, shard::Shard};
/// use futures::StreamExt;
/// use std::sync::Arc;
///
/// cfg_if::cfg_if! {
/// if #[cfg(target_os = "linux")] {
/// type Driver = monoio::IoUringDriver;
/// } else {
/// type Driver = monoio::LegacyDriver;
/// }
/// }
///
/// // Message to send
/// type Msg = usize;
///
/// let cpus = 4;
/// let mesh = Arc::new(MeshBuilder::<Msg>::new(cpus).unwrap());
///
/// let mut handles = Vec::new();
/// for peer in 0..cpus {
/// let mesh = mesh.clone();
/// let handle = std::thread::spawn(move || {
/// // We lock the thread for the core
/// monoio::utils::bind_to_cpu_set(Some(peer)).unwrap();
///
/// let mut rt = monoio::RuntimeBuilder::<Driver>::new()
/// .with_entries(1024)
/// .enable_timer()
/// .build()
/// .expect("Cannot build runtime");
///
/// let shard: Shard<Msg> = mesh.join_with(peer).unwrap();
///
/// rt.block_on(async move {
/// let handle = monoio::spawn(async move {
/// let mut receiver = shard.receiver().unwrap();
///
/// // We send it unchecked because we are not sure every shard joined when we send
/// // it.
/// // Even if the shard did not join, we can buffer it inside the internal channel.
/// // It's not unsafe, it's unchecked.
/// shard.send_to_unchecked(peer, (peer + 1) % cpus);
///
/// while let Some(val) = receiver.next().await {
/// println!("Received {val} on CPU {peer}");
/// // In this example we break at the begining
/// return ();
/// }
/// });
/// handle.await
/// })
/// });
///
/// handles.push(handle);
/// }
///
/// for handle in handles {
/// handle.join();
/// }
/// ```
pub
/// Sharding utilities built on top of a mesh.