| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| use anyhow::{Context as _, Error}; |
| use fidl_fuchsia_examples::{EchoRequest, EchoRequestStream, EchoServiceRequest}; |
| use fuchsia_async as fasync; |
| use fuchsia_component::server::ServiceFs; |
| use futures::prelude::*; |
| |
| async fn run_echo_server(mut stream: EchoRequestStream, reverse: bool) -> Result<(), Error> { |
| while let Some(request) = stream.try_next().await.context("error running echo server")? { |
| match request { |
| EchoRequest::SendString { value: _, control_handle: _ } => { |
| println!("Received SendString"); |
| } |
| EchoRequest::EchoString { value, responder } => { |
| println!("Received EchoString request for string {:?}", value); |
| let resp = if reverse { value.chars().rev().collect() } else { value.clone() }; |
| responder.send(&resp).context("error sending response")?; |
| println!("Response sent successfully"); |
| } |
| } |
| } |
| Ok(()) |
| } |
| |
| enum IncomingService { |
| // Host a unified service. |
| Svc(EchoServiceRequest), |
| // ... more services here |
| } |
| |
| #[fasync::run_singlethreaded] |
| async fn main() -> Result<(), Error> { |
| let mut fs = ServiceFs::new_local(); |
| fs.dir("svc").add_unified_service(IncomingService::Svc); |
| fs.take_and_serve_directory_handle()?; |
| |
| const MAX_CONCURRENT: usize = 10_000; |
| fs.for_each_concurrent(MAX_CONCURRENT, |request| { |
| match request { |
| IncomingService::Svc(EchoServiceRequest::RegularEcho(stream)) => { |
| run_echo_server(stream, false) |
| } |
| IncomingService::Svc(EchoServiceRequest::ReversedEcho(stream)) => { |
| run_echo_server(stream, true) |
| } |
| } |
| .unwrap_or_else(|e| println!("{:?}", e)) |
| }) |
| .await; |
| Ok(()) |
| } |