2 releases
0.1.0-beat.3 | Apr 14, 2024 |
---|---|
0.1.0-beat.2 | Apr 9, 2024 |
#12 in #message-bus
93 downloads per month
9KB
Example
use std::time::Duration;
use tokio::join;
use msg_channel::*;
pub struct MsgHandler;
impl MsgHandler {
pub fn mut_test(&mut self) {}
}
pub struct MsgA;
pub struct MsgB;
impl HandleAsync<MsgA> for MsgHandler {
type Replay = String;
async fn handle(&mut self, _msg: MsgA) -> Self::Replay {
tokio::time::sleep(Duration::from_secs(2)).await;
println!("handle MsgA");
"Msg A Say Hello".to_string()
}
}
impl HandleAsync<MsgB> for MsgHandler {
type Replay = u32;
async fn handle(&mut self, _msg: MsgB) -> Self::Replay {
tokio::time::sleep(Duration::from_secs(1)).await;
println!("handle MsgB");
22
}
}
pub struct MsgC(bool);
pub struct MsgD(String);
impl HandleSync<MsgC> for MsgHandler {
type Replay = bool;
fn handle(&mut self, _msg: MsgC) -> Self::Replay {
println!("handle MsgC {}", _msg.0);
_msg.0
}
}
impl HandleSync<MsgD> for MsgHandler {
type Replay = String;
fn handle(&mut self, _msg: MsgD) -> Self::Replay {
println!("handle MsgD {:?}", _msg.0);
_msg.0
}
}
pub struct TestMsgSet;
#[msg_set]
impl MessageSet for TestMsgSet {
type Handler = MsgHandler;
type Async = (MsgA, MsgB);
type Sync = (MsgC, MsgD);
type AsyncConcurrent = ();
type SyncConcurrent = ();
}
#[tokio::main]
async fn main() -> color_eyre::Result<()> {
let (sender, mut handler) = msg_channel::<TestMsgSet>();
tokio::spawn(async move {
let r = sender.send(MsgA)?.await;
println!("MsgA replay: {}", r);
let r = sender.send(MsgB)?.await;
println!("MsgB replay: {}", r);
let (r1, r2) = join!(
sender.send(MsgC(true))?,
sender.send(MsgD("Hello".to_string()))?
);
println!("MsgC,MsgD replay: {},{}", r1, r2);
Ok::<(), color_eyre::Report>(())
});
let mut msg_handler = MsgHandler;
loop {
tokio::select! {
_ = std::future::pending() => {
msg_handler.mut_test();
}
result = async {
handler.handle_next(&mut msg_handler).await
} => {
if let Some(_result) = result? {
msg_handler.mut_test();
}else{
break;
}
}
}
}
Ok(())
}
License
MIT License (LICENSE-MIT)
Dependencies
~2.8–9MB
~77K SLoC