Clean up main crate and more work on macro

Signed-off-by: Lucio Franco <[email protected]>

tonic-examples/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "tonic-examples"
+version = "0.1.0"
+authors = ["Lucio Franco <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[[bin]]
+name = "helloworld-server"
+path = "src/helloworld/server.rs"
+
+# [[bin]]
+# name = "helloworld-client"
+# path = "src/helloworld/client.rs"
+
+[dependencies]
+tonic = { path = "../tonic" }
+tower-h2 = { path = "../tower-h2" }
+futures-preview = { version = "=0.3.0-alpha.17", default-features = false, features = ["alloc"]}
+tokio = "=0.2.0-alpha.1"
+prost = "0.5"
+prost-derive = "0.5"
+bytes = "0.4"

tonic-examples/build.rs

@@ -0,0 +1 @@
+fn main() {}

tonic-examples/proto/helloworld/helloworld.proto

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+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.helloworld";
+option java_outer_classname = "HelloWorldProto";
+
+package helloworld;
+
+// The greeting service definition.
+service Greeter {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+  string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+  string message = 1;
+}

tonic-examples/src/helloworld/server.rs

@@ -0,0 +1,67 @@
+#![feature(async_await)]
+
+use std::time::Duration;
+use tokio::{timer::Delay, net::TcpListener};
+use tonic::{Request, Response, Status};
+use tower_h2::Server;
+
+mod proto {
+    #[derive(Clone, PartialEq, prost::Message)]
+    pub struct HelloRequest {
+        #[prost(string, tag = "1")]
+        pub name: std::string::String,
+    }
+    /// The response message containing the greetings
+    #[derive(Clone, PartialEq, prost::Message)]
+    pub struct HelloReply {
+        #[prost(string, tag = "1")]
+        pub message: std::string::String,
+    }
+}
+
+#[derive(Default, Clone)]
+pub struct MyGreeter {
+    data: String,
+}
+
+#[tonic::server(service = "helloworld.Greeter", proto = "proto")]
+impl MyGreeter {
+    pub async fn say_hello(&self, request: Request<proto::HelloRequest>) -> Result<Response<proto::HelloReply>, Status> {
+        println!("Got a request: {:?}", request);
+
+        let string = &self.data;
+
+        let when = tokio::clock::now() + Duration::from_millis(100);
+        Delay::new(when).await;
+
+        println!("My data: {:?}", string);
+
+        Delay::new(when).await;
+        
+        let reply = HelloReply {
+            message: "Zomg, it works!".into(),
+        };
+        Ok(Response::new(reply))
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let addr = "[::1]:50051".parse().unwrap();
+    let mut bind = TcpListener::bind(&addr)?;
+
+    let greeter = MyGreeter::default();
+    let mut server = Server::new(GrpcServer::new(greeter), Default::default());
+
+    while let Ok((sock, _addr)) = bind.accept().await {
+        if let Err(e) = sock.set_nodelay(true) {
+            return Err(e.into());
+        }
+
+        if let Err(e) = server.serve(sock).await {
+            println!("H2 ERROR: {}", e);
+        }
+    }
+
+    Ok(())
+}