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webmetro
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Be less "clever" in main.rs, don't twist everything into the runtime.

This commit is contained in:
Tangent 128 2018-10-20 22:06:42 -04:00
parent fe50663938
commit 713a7d4741
1 changed files with 15 additions and 17 deletions
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32
src/main.rs
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@ -35,28 +35,26 @@ fn options() -> App<'static, 'static> {
fn main() {
let args = options().get_matches();
tokio_run(match args.subcommand() {
("filter", Some(sub_args)) => box_up(filter::run(sub_args)),
("relay", Some(sub_args)) => box_up(relay::run(sub_args)),
("send", Some(sub_args)) => box_up(send::run(sub_args)),
("dump", Some(sub_args)) => box_up(dump::run(sub_args)),
_ => box_up(futures::lazy(|| {
match args.subcommand() {
("filter", Some(sub_args)) => { tokio_run(filter::run(sub_args)); },
("relay", Some(sub_args)) => { relay::run(sub_args).unwrap_or_else(handle_error); },
("send", Some(sub_args)) => { tokio_run(send::run(sub_args)); },
("dump", Some(sub_args)) => { dump::run(sub_args).unwrap_or_else(handle_error); },
_ => {
options().print_help().unwrap();
println!("");
Ok(())
}))
});
}
};
}
fn tokio_run(task: Box<Future<Item=(), Error=WebmetroError> + Send>) {
fn handle_error(err: WebmetroError) {
eprintln!("Error: {}", err);
}
fn tokio_run<T: IntoFuture<Item=(), Error=WebmetroError> + Send>(task: T)
where T::Future: Send + 'static {
rt::run(task.into_future().map_err(|err| {
eprintln!("Error: {}", err);
handle_error(err);
::std::process::exit(1);
}));
}
fn box_up<F: IntoFuture<Item=(), Error=WebmetroError>>(task: F) -> Box<Future<Item=(), Error=WebmetroError> + Send>
where F::Future: Send + 'static
{
Box::new(task.into_future())
}