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https://github.com/OMGeeky/tarpc.git
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7aabfb3c14
* Rewrite tarpc on top of tokio. * Add examples * Move error types to their own module. Also, cull unused error variants. * Remove unused fn * Remove CanonicalRpcError* types. They're 100% useless. * Track tokio master (WIP) * The great error revamp. Removed the canonical rpc error type. Instead, the user declares the error type for each rpc: In the above example, the error type is Baz. Declaring an error is optional; if none is specified, it defaults to Never, a convenience struct that wraps the never type (exclamation mark) to impl Serialize, Deserialize, Error, etc. Also adds the convenience type StringError for easily using a String as an error type. * Add missing license header * Minor cleanup * Rename StringError => Message * Create a sync::Connect trait. Along with this, the existing Connect trait moves to future::Connect. The future and sync modules are reexported from the crate root. Additionally, the utility errors Never and Message are no longer reexported from the crate root. * Update readme * Track tokio/futures master. Add a Spawn utility trait to replace the removed forget. * Fix pre-push hook * Add doc comment to SyncServiceExt. * Fix up some documentation * Track tokio-proto master * Don't set tcp nodelay * Make future::Connect take an associated type for the future. * Unbox FutureClient::connect return type * Use type alias instead of newtype struct for ClientFuture * Fix benches/latency.rs * Write a plugin to convert lower_snake_case idents/types to UpperCamelCase. Use it to add associated types to FutureService instead of boxing the return futures. * Specify plugin = true in snake_to_camel/Cargo.toml. Weird things happen otherwise. * Add clippy.toml
74 lines
1.8 KiB
Rust
74 lines
1.8 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(snake_to_camel)]
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#[macro_use]
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extern crate tarpc;
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extern crate futures;
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use futures::{BoxFuture, Future};
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use add::{FutureService as AddService, FutureServiceExt as AddExt};
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use double::{FutureService as DoubleService, FutureServiceExt as DoubleExt};
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use tarpc::util::{Never, Message};
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use tarpc::future::Connect as Fc;
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use tarpc::sync::Connect as Sc;
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pub mod add {
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service! {
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/// Add two ints together.
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rpc add(x: i32, y: i32) -> i32;
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}
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}
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pub mod double {
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use tarpc::util::Message;
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service! {
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/// 2 * x
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rpc double(x: i32) -> i32 | Message;
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}
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}
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#[derive(Clone)]
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struct AddServer;
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impl AddService for AddServer {
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type Add = futures::Finished<i32, Never>;
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fn add(&self, x: i32, y: i32) -> Self::Add {
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futures::finished(x + y)
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}
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}
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#[derive(Clone)]
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struct DoubleServer {
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client: add::FutureClient,
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}
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impl DoubleService for DoubleServer {
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type Double = BoxFuture<i32, Message>;
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fn double(&self, x: i32) -> Self::Double {
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self.client
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.add(&x, &x)
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.map_err(|e| e.to_string().into())
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.boxed()
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}
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}
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fn main() {
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let add = AddServer.listen("localhost:0").unwrap();
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let add_client = add::FutureClient::connect(add.local_addr()).wait().unwrap();
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let double = DoubleServer { client: add_client };
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let double = double.listen("localhost:0").unwrap();
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let double_client = double::SyncClient::connect(double.local_addr()).unwrap();
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for i in 0..5 {
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println!("{:?}", double_client.double(&i).unwrap());
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}
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}
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