## tarpc

tarpc is an RPC framework for rust with a focus on ease of use. Defining and implementing an echo-like server can be done in just a few lines of code:

```rust
#![feature(custom_derive, plugin)]
#![plugin(serde_macros)]
#[macro_use]
extern crate tarpc;
extern crate serde;

rpc! {
    mod hello_service {
        service {
            rpc hello(name: String) -> String;
        }
    }
}

struct HelloService;
impl hello_service::Service for HelloService {
    fn hello(&self, name: String) -> String {
        format!("Hello, {}!", s)
    }
}

fn main() {
    let server_handle = hello_service::serve("0.0.0.0:0", HelloService, None).unwrap();
    let client = hello_service::Client::new(server_handle.local_addr(), None).unwrap();
    assert_eq!("Hello, Mom!".into(), client.hello("Mom".into()).unwrap());
    drop(client);
    server_handle.shutdown();
}
```

The `rpc!` macro generates a module in the current module. In the above example, the module is named `hello_service`. This module will contain a `Client` type, a `Service` trait, and a `serve` function. `serve` can be used to start a server listening on a tcp port. A `Client` can connect to such a service. Any type implementing the `Service` trait can be passed to `serve`. These generated types are specific to the echo service, and make it easy and ergonomic to write servers without dealing with sockets or serialization directly. See the tarpc_examples package for more sophisticated examples.

## Additional Features
- Imports can be specified in an `item {}` block that appears above the `service {}` block.
- Attributes can be specified on rpc methods. These will be included on both the `Service` trait methods as well as on the `Client`'s stub methods.

## Planned Improvements (actively being worked on)
- Automatically reconnect on the client side when the connection cuts out.
- Allow omitting the return type in rpc definitions when the type is `()`.
- Support arbitrary serialization (currently `bincode` is used for all serialization).
- Support asynchronous server implementations (currently thread per connection).

## Contributing

To contribute to Tarpc, please see [CONTRIBUTING](CONTRIBUTING.md).

## License

Tarpc is distributed under the terms of both the MIT license
and the Apache License (Version 2.0).

See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT) for details.