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minhtrannhat 2022-08-18 09:33:01 -04:00
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@ -1 +1,2 @@
/target /target
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287
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checksum = "9e0ab7bdc962035a87fba73f3acca9b8a8d0034c2e6f60b84aeaaddddc155dce" checksum = "60db860322da191b40952ad9affe65ea23e7dd6a5c442c2c42865810c6ab8e6b"
dependencies = [ dependencies = [
"ansi_term",
"lazy_static",
"matchers",
"regex",
"sharded-slab", "sharded-slab",
"smallvec",
"thread_local", "thread_local",
"tracing",
"tracing-core", "tracing-core",
"tracing-log",
] ]
[[package]] [[package]]
name = "unicode-xid" name = "unicode-ident"
version = "0.2.2" version = "1.0.3"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3" checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
[[package]] [[package]]
name = "valuable" name = "valuable"
@ -540,6 +514,15 @@ version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6" checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-util"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
dependencies = [
"winapi",
]
[[package]] [[package]]
name = "winapi-x86_64-pc-windows-gnu" name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0" version = "0.4.0"
@ -548,9 +531,9 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]] [[package]]
name = "windows-sys" name = "windows-sys"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3df6e476185f92a12c072be4a189a0210dcdcf512a1891d6dff9edb874deadc6" checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
dependencies = [ dependencies = [
"windows_aarch64_msvc", "windows_aarch64_msvc",
"windows_i686_gnu", "windows_i686_gnu",
@ -561,30 +544,30 @@ dependencies = [
[[package]] [[package]]
name = "windows_aarch64_msvc" name = "windows_aarch64_msvc"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d8e92753b1c443191654ec532f14c199742964a061be25d77d7a96f09db20bf5" checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
[[package]] [[package]]
name = "windows_i686_gnu" name = "windows_i686_gnu"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6a711c68811799e017b6038e0922cb27a5e2f43a2ddb609fe0b6f3eeda9de615" checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
[[package]] [[package]]
name = "windows_i686_msvc" name = "windows_i686_msvc"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "146c11bb1a02615db74680b32a68e2d61f553cc24c4eb5b4ca10311740e44172" checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
[[package]] [[package]]
name = "windows_x86_64_gnu" name = "windows_x86_64_gnu"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc" checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
[[package]] [[package]]
name = "windows_x86_64_msvc" name = "windows_x86_64_msvc"
version = "0.32.0" version = "0.36.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316" checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"

6
Cargo.toml
View File

@ -7,6 +7,6 @@ edition = "2021"
[dependencies] [dependencies]
color-eyre = "0.6.1" color-eyre = "0.6.1"
tokio = { version = "1.15.0", features = ["full"] } tokio = { version = "1.18.2", features = ["full"] }
tracing = "0.1.31" log = "0.4.17"
tracing-subscriber = { version = "0.3.9", features = ["env-filter", "std"] } env_logger = "0.9.0"

27
src/main.rs
View File

@ -4,21 +4,22 @@ use tokio::{
net::TcpListener, net::TcpListener,
sync::broadcast, sync::broadcast,
}; };
use tracing::info; use log::info;
use tracing_subscriber::filter::EnvFilter;
#[tokio::main] #[tokio::main]
async fn main() -> Result<(), Report> { async fn main() -> Result<(), Report> {
env_logger::init();
// Setup the Environment // Setup the Environment
setup()?; setup()?;
// Set up a TCP listener to listen for incoming tcp requests // Set up a TCP listener to listen for incoming tcp requests
let listener = TcpListener::bind("127.0.0.1:8080").await.unwrap(); let listener = TcpListener::bind("127.0.0.1:8080").await.unwrap();
info!("Bounded to localhost port 8080");
// Setting up broadcast channel: A channel that will accept messages and broadcast them to everyone connected to the TCP server // Setting up broadcast channel: A channel that will accept messages and broadcast them to everyone connected to the TCP server
// the channel accepts an i32 that is the maximum number of messages the channel can retain at any given time // the channel accepts an i32 that is the maximum number of messages the channel can retain at any given time
let (sender, _receiver) = broadcast::channel(10); let (sender, _receiver) = broadcast::channel(100);
// First loop accept all the tcp client requests
loop { loop {
// prevent the compiler error when we try to access something in a loop when it was initialized outside of the loop // prevent the compiler error when we try to access something in a loop when it was initialized outside of the loop
let sender = sender.clone(); let sender = sender.clone();
@ -27,6 +28,7 @@ async fn main() -> Result<(), Report> {
// accept the requests // accept the requests
let (mut socket, addr) = listener.accept().await.unwrap(); let (mut socket, addr) = listener.accept().await.unwrap();
info!("Accepted a websocket request from {}", addr);
tokio::spawn(async move { tokio::spawn(async move {
// Splitting the TCP socket into read/write halves // Splitting the TCP socket into read/write halves
@ -36,22 +38,26 @@ async fn main() -> Result<(), Report> {
let mut line: String = String::new(); let mut line: String = String::new();
writer.write_all(format!("Your address is {addr} \n").as_bytes()).await.unwrap();
// second loop keeps receiving input from that one client going // second loop keeps receiving input from that one client going
loop { loop {
tokio::select! { tokio::select! {
// input half
result = buffer_reader.read_line(&mut line) => { result = buffer_reader.read_line(&mut line) => {
if result.unwrap() == 0{ if result.unwrap() == 0{
break; break;
} }
// send items to the broadcast channel // send items to the broadcast channel
sender.send((line.clone(), addr)).unwrap(); sender.send((format!("{addr} - {line}"), addr)).unwrap();
// clear the input buffer // clear the input buffer
line.clear(); line.clear();
} }
// print half
result = receiver.recv() => { result = receiver.recv() => {
let (msg, other_addr) = result.unwrap(); let (msg, other_addr) = result.unwrap();
if addr != other_addr { if addr != other_addr {
writer.write_all(msg.as_bytes()).await.unwrap(); writer.write_all(msg.as_bytes()).await.unwrap();
} }
@ -71,14 +77,5 @@ fn setup() -> Result<(), Report> {
} }
color_eyre::install()?; color_eyre::install()?;
if std::env::var("RUST_LOG").is_err() {
std::env::set_var("RUST_LOG", "info");
info!("RUST_LOG is set. All errors shall be logged !")
}
tracing_subscriber::fmt::fmt()
.with_env_filter(EnvFilter::from_default_env())
.init();
Ok(()) Ok(())
} }