Updated 'src/async/multiple_futures.md'.

projects/custom_async_abstraction/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "custom_async_abstraction"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+trpl = "0.3.0"

projects/custom_async_abstraction/src/main.rs

@@ -0,0 +1,19 @@
+use std::time::Duration;
+
+fn main() {
+    let fut = async {
+        let slow = async {
+            trpl::sleep(Duration::from_secs(5)).await;
+            "最终完成"
+        };
+
+        match timeout(slow, Duration::from_secs(2)).await {
+            Ok(message) => println!("在 '{message}' 下成功"),
+            Err(duration) => {
+                println!("在 {} 秒后失败", duration.as_secs())
+            }
+        }
+    };
+
+    trpl::block_on(fut);
+}

projects/starvation_demo/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "starvation_demo"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+trpl = "0.3.0"

projects/starvation_demo/src/main.rs

@@ -0,0 +1,38 @@
+use std::{thread, time::Duration};
+
+fn slow(name: &str, ms: u64) {
+    thread::sleep(Duration::from_millis(ms));
+    println!("'{name}' 运行了 {ms}ms");
+}
+
+fn main() {
+    let fut = async {
+        let a = async {
+            println!("'a' 已启动。");
+            slow("a", 30);
+            trpl::yield_now().await;
+            slow("a", 10);
+            trpl::yield_now().await;
+            slow("a", 20);
+            trpl::yield_now().await;
+            println!("'a' 已结束。");
+        };
+
+        let b = async {
+            println!("'b' 已启动。");
+            slow("b", 75);
+            trpl::yield_now().await;
+            slow("b", 10);
+            trpl::yield_now().await;
+            slow("b", 15);
+            trpl::yield_now().await;
+            slow("b", 350);
+            trpl::yield_now().await;
+            println!("'b' 已结束。");
+        };
+
+        trpl::select(a, b).await;
+    };
+
+    trpl::block_on(fut);
+}