example: Add named pipe example (#181)

examples/transport/Cargo.toml

@@ -59,3 +59,7 @@ path = "src/unix_socket.rs"
 [[example]]
 name = "websocket"
 path = "src/websocket.rs"
+
+[[example]]
+name = "named-pipe"
+path = "src/named-pipe.rs"

examples/transport/src/named-pipe.rs

@@ -0,0 +1,80 @@
+mod common;
+
+#[cfg(target_family = "windows")]
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    use common::calculator::Calculator;
+    use rmcp::{serve_client, serve_server};
+    use tokio::net::windows::named_pipe::{ClientOptions, ServerOptions};
+    const PIPE_NAME: &str = r"\\.\pipe\rmcp_example";
+
+    async fn server(name: &str) -> anyhow::Result<()> {
+        let mut server = ServerOptions::new()
+            .first_pipe_instance(true)
+            .create(name)?;
+        while let Ok(_) = server.connect().await {
+            let stream = server;
+            server = ServerOptions::new().create(name)?;
+            tokio::spawn(async move {
+                match serve_server(Calculator, stream).await {
+                    Ok(server) => {
+                        println!("Server initialized successfully");
+                        if let Err(e) = server.waiting().await {
+                            println!("Error while server waiting: {}", e);
+                        }
+                    }
+                    Err(e) => println!("Server initialization failed: {}", e),
+                }
+
+                anyhow::Ok(())
+            });
+        }
+        Ok(())
+    }
+
+    async fn client() -> anyhow::Result<()> {
+        println!("Client connecting to {}", PIPE_NAME);
+        let stream = ClientOptions::new().open(PIPE_NAME)?;
+
+        let client = serve_client((), stream).await?;
+        println!("Client connected and initialized successfully");
+
+        // List available tools
+        let tools = client.peer().list_tools(Default::default()).await?;
+        println!("Available tools: {:?}", tools);
+
+        // Call the sum tool
+        if let Some(sum_tool) = tools.tools.iter().find(|t| t.name.contains("sum")) {
+            println!("Calling sum tool: {}", sum_tool.name);
+            let result = client
+                .peer()
+                .call_tool(rmcp::model::CallToolRequestParam {
+                    name: sum_tool.name.clone(),
+                    arguments: Some(rmcp::object!({
+                        "a": 10,
+                        "b": 20
+                    })),
+                })
+                .await?;
+
+            println!("Result: {:?}", result);
+        }
+
+        Ok(())
+    }
+    tokio::spawn(server(PIPE_NAME));
+    let mut clients = vec![];
+
+    for _ in 0..100 {
+        clients.push(client());
+    }
+    for client in clients {
+        client.await?;
+    }
+    Ok(())
+}
+
+#[cfg(not(target_family = "windows"))]
+fn main() {
+    println!("Unix socket example is not supported on this platform.");
+}