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https://github.com/OMGeeky/tarpc.git
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fe20c8af14
This allows the client to drive its own execution, as one would expect.
Previously, the reactor had to be driven on a separate thread, which was confusing.
This has a couple notable side effects:
1. SyncClient is no longer `Clone`. This is because `reactor::Core`
is not `Clone`, and creating one is not infallible
(`Core::new` returns a `Result`).
2. SyncClient does not use the user-specified `client::Options::handle` or
`client::Options::remote`, because it constructs its own reactor.
58 lines
1.5 KiB
Rust
58 lines
1.5 KiB
Rust
// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the MIT License, <LICENSE or http://opensource.org/licenses/MIT>.
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// This file may not be copied, modified, or distributed except according to those terms.
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#![feature(conservative_impl_trait, plugin)]
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#![plugin(tarpc_plugins)]
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extern crate futures;
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#[macro_use]
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extern crate tarpc;
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#[macro_use]
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extern crate serde_derive;
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use std::error::Error;
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use std::fmt;
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use tarpc::{client, server};
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use tarpc::client::sync::Connect;
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service! {
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rpc hello(name: String) -> String | NoNameGiven;
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}
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#[derive(Debug, Deserialize, Serialize)]
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pub struct NoNameGiven;
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impl fmt::Display for NoNameGiven {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", self.description())
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}
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}
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impl Error for NoNameGiven {
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fn description(&self) -> &str {
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r#"The empty String, "", is not a valid argument to rpc `hello`."#
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}
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}
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#[derive(Clone)]
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struct HelloServer;
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impl SyncService for HelloServer {
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fn hello(&self, name: String) -> Result<String, NoNameGiven> {
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if name == "" {
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Err(NoNameGiven)
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} else {
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Ok(format!("Hello, {}!", name))
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}
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}
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}
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fn main() {
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let addr = HelloServer.listen("localhost:10000", server::Options::default()).unwrap();
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let mut client = SyncClient::connect(addr, client::Options::default()).unwrap();
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println!("{}", client.hello("Mom".to_string()).unwrap());
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println!("{}", client.hello("".to_string()).unwrap_err());
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}
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