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tokio = { version = "1.0", features = ["full"] }
bytes = "1.0"
+119
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use bytes::BytesMut;
use clap::{Parser, Subcommand};
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio::net::TcpListener;
use tokio::net::TcpStream;
use tokio::time::{Duration, Instant};
const DEFAULT_PORT: u16 = 8888;
const BUFFER_SIZE: usize = 8192;
#[derive(Parser)]
#[command(version, about)]
struct Cli {
#[command(subcommand)]
command: Commands,
}
#[derive(Subcommand)]
enum Commands {
Server {
#[arg(short, long, default_value_t = DEFAULT_PORT)]
port: u16,
},
Client {
#[arg(long)]
host: String,
#[arg(short, long, default_value_t = DEFAULT_PORT)]
port: u16,
#[arg(short, long, default_value = "10")]
seconds: u64,
},
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let cli = Cli::parse();
match cli.command {
Commands::Server { port } => {
server(port).await?;
}
Commands::Client {
host,
port,
seconds,
} => {
client(&host, port, seconds).await?;
}
}
Ok(())
}
async fn server(port: u16) -> Result<(), Box<dyn std::error::Error>> {
let listener = TcpListener::bind(("0.0.0.0", port)).await?;
println!("Server listening on port {}", port);
loop {
let (mut socket, addr) = listener.accept().await?;
println!("Client connected from {}", addr);
tokio::spawn(async move {
let mut buf = BytesMut::with_capacity(BUFFER_SIZE);
let mut total_received = 0u64;
let start_time = Instant::now();
loop {
match socket.read_buf(&mut buf).await {
Ok(0) => break, // Соединение закрыто
Ok(n) => {
total_received += n as u64;
buf.clear();
}
Err(e) => {
eprintln!("Read error: {}", e);
break;
}
}
}
let duration = start_time.elapsed();
let rate = (total_received as f64) / duration.as_secs_f64() / 1024.0 / 1024.0;
println!(
"Received {} bytes in {:.2?} ({:.2} MB/s)",
total_received, duration, rate
);
});
}
}
async fn client(host: &str, port: u16, seconds: u64) -> Result<(), Box<dyn std::error::Error>> {
let mut stream = TcpStream::connect((host, port)).await?;
println!("Connected to server {}:{}", host, port);
let data = vec![0u8; BUFFER_SIZE];
let mut total_sent = 0u64;
let start_time = Instant::now();
let timeout = Duration::from_secs(seconds);
while start_time.elapsed() < timeout {
match stream.write_all(&data).await {
Ok(_) => total_sent += data.len() as u64,
Err(e) => {
eprintln!("Write error: {}", e);
break;
}
}
}
let duration = start_time.elapsed();
let rate = (total_sent as f64) / duration.as_secs_f64() / 1024.0 / 1024.0;
println!(
"Sent {} bytes in {:.2?} ({:.2} MB/s)",
total_sent, duration, rate
);
stream.shutdown().await?;
Ok(())
}