tokio-rs/tokio
1
0
Fork 0
mirror of https://github.com/tokio-rs/tokio.git synced 2026-08-28 00:00:11 +02:00
Code Issues Packages Projects Releases Wiki Activity

chore: Fix examples not working with cargo run (#998)

Browse Source 
* chore: Fix examples not working with `cargo run`

## Motivation

PR #991 moved the `tokio` crate to its own subdirectory, but did not
move the `examples` directory into `tokio/examples`. While attempting to
use the examples for testing another change, I noticed that #991 had
broken the ability to use `cargo run`, as the examples were no longer
considered part of a crate that cargo was aware of:

```
tokio on master [$] via 🦀v1.33.0 at ☸️ aks-eliza-dev
➜  cargo run --example chat
error: no example target named `chat`

Did you mean `echo`?
```

## Solution

This branch moves the examples into the `tokio` directory, so cargo is
now once again aware of them:

```
tokio on eliza/fix-examples [$] via 🦀v1.33.0 at ☸️ aks-eliza-dev
➜  cargo run --example chat
   Compiling tokio-executor v0.1.7 (/Users/eliza/Code/tokio/tokio-executor)
   Compiling tokio-reactor v0.1.9
   Compiling tokio-threadpool v0.1.13
   Compiling tokio-current-thread v0.1.6
   Compiling tokio-timer v0.2.10
   Compiling tokio-uds v0.2.5
   Compiling tokio-udp v0.1.3
   Compiling tokio-tcp v0.1.3
   Compiling tokio-fs v0.1.6
   Compiling tokio v0.1.18 (/Users/eliza/Code/tokio/tokio)
    Finished dev [unoptimized + debuginfo] target(s) in 7.04s
     Running `target/debug/examples/chat`
server running on localhost:6142
```

Signed-off-by: Eliza Weisman <[email protected]>

Signed-off-by: Eliza Weisman <[email protected]>
This commit is contained in:
Eliza Weisman
2019-03-22 15:25:42 -07:00
committed by GitHub
parent 6e4945025c
commit 30330da11a
16 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/hello_world.rs
-58
View File
@@ -1,58 +0,0 @@
//! Hello world server.
//!
//! A simple client that opens a TCP stream, writes "hello world\n", and closes
//! the connection.
//!
//! You can test this out by running:
//!
//! ncat -l 6142
//!
//! And then in another terminal run:
//!
//! cargo run --example hello_world
#![deny(warnings)]
extern crate tokio;
use tokio::io;
use tokio::net::TcpStream;
use tokio::prelude::*;
pub fn main() -> Result<(), Box<std::error::Error>> {
let addr = "127.0.0.1:6142".parse()?;
// Open a TCP stream to the socket address.
//
// Note that this is the Tokio TcpStream, which is fully async.
let client = TcpStream::connect(&addr)
.and_then(|stream| {
println!("created stream");
io::write_all(stream, "hello world\n").then(|result| {
println!("wrote to stream; success={:?}", result.is_ok());
Ok(())
})
})
.map_err(|err| {
// All tasks must have an `Error` type of `()`. This forces error
// handling and helps avoid silencing failures.
//
// In our example, we are only going to log the error to STDOUT.
println!("connection error = {:?}", err);
});
// Start the Tokio runtime.
//
// The Tokio is a pre-configured "out of the box" runtime for building
// asynchronous applications. It includes both a reactor and a task
// scheduler. This means applications are multithreaded by default.
//
// This function blocks until the runtime reaches an idle state. Idle is
// defined as all spawned tasks have completed and all I/O resources (TCP
// sockets in our case) have been dropped.
println!("About to create the stream and write to it...");
tokio::run(client);
println!("Stream has been created and written to.");
Ok(())
}