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use std::os::unix::prelude::{FromRawFd, RawFd};
use tokio::io::Interest;
pub use crate::am::device::base::ServiceConnection;
#[derive(Debug)]
pub struct InvalidSocketError;
#[derive(Debug)]
pub struct SendError;
#[derive(Debug)]
pub struct RecvError;
impl ServiceConnection {
pub fn socket(&self) -> Result<RawFd, InvalidSocketError> {
unsafe {
let res = AMDServiceConnectionGetSocket(self);
if res == -1 {
Err(InvalidSocketError)
} else {
Ok(res)
}
}
}
#[inline]
pub fn send(&self, buf: &[u8]) -> Result<usize, SendError> {
unsafe {
let res = AMDServiceConnectionSend(self, buf.as_ptr(), buf.len());
if res >= 0 {
Ok(res as _)
} else {
println!("send: {0}", res);
Err(SendError)
}
}
}
#[inline]
pub fn recv(&self, buf: &mut [u8]) -> Result<usize, RecvError> {
unsafe {
let res = AMDServiceConnectionReceive(self, buf.as_mut_ptr(), buf.len());
if res >= 0 {
Ok(res as _)
} else {
eprintln!("recv: {0}", res);
Err(RecvError)
}
}
}
pub async fn http_proxy(&self) -> std::io::Result<u16> {
use tokio::io::AsyncWriteExt;
use tokio::net::{TcpListener, TcpStream};
let std_stream = unsafe { std::net::TcpStream::from_raw_fd(self.socket().unwrap()) };
std_stream.set_nonblocking(true)?;
// std_stream.set_nodelay(true)?;
// std::mem::forget(std_stream);
// // std_stream.set_nodelay(true)?;
let device = TcpStream::from_std(std_stream)?;
// unsafe {
// extern "C" fn cb(s: &cf::Socket,
// cb_type: cf::SocketCallBackType,
// address: &cf::Data,
// data: *const u8,
// info: *mut c_void) {
// println!("??????????")
// }
// let sock = cf::Socket::create_with_native(None, self.socket().unwrap(), cf::SocketCallBackType::READ, cb, None).unwrap();
// let source = sock.create_runloop_source(None, 0).unwrap();
// cf::RunLoop::main().add_source(&source, cf::RunLoopMode::common())
// }
// let n = self.send(&[0, 0, 0, 0]).unwrap();
// println!("post send! {}", n);
//let listener = TcpListener::bind("127.0.0.1:0").await?;
let listener = TcpListener::bind("127.0.0.1:8088").await?;
let addr = listener.local_addr()?;
println!("listening: {}", addr);
let connection = self.retained();
tokio::spawn(async move {
let mut socket = match listener.accept().await {
Ok((socket, addr)) => {
println!("new client: {:?}", addr);
socket
}
Err(e) => {
println!("couldn't get client: {:?}", e);
return Err(e);
}
};
let mut buf = vec![0; 0x1000];
loop {
let ready = socket
.ready(Interest::WRITABLE | Interest::READABLE)
.await?;
if ready.is_readable() {
device.writable().await?;
match socket.try_read(&mut buf) {
Ok(0) => break,
Ok(n) => {
let send = connection.send(&buf[0..n]).unwrap();
println!("send {} {}", send, n);
}
Err(ref e) if e.kind() == tokio::io::ErrorKind::WouldBlock => {
continue;
}
Err(e) => Err(e)?,
}
}
if ready.is_writable() {
println!("pre readable");
device.readable().await?;
println!("post readable");
match connection.recv(&mut buf) {
Ok(0) => break,
Ok(n) => {
println!("recv {}", n);
socket.write_all(&buf[0..n]).await?;
}
Err(e) => {
println!("err {:?}", e);
continue;
}
}
}
}
std::io::Result::Ok(())
});
Ok(addr.port())
}
}
unsafe extern "C" {
fn AMDServiceConnectionGetSocket(connection: &ServiceConnection) -> RawFd;
fn AMDServiceConnectionSend(
connection: &ServiceConnection,
buffer: *const u8,
length: usize,
) -> i32;
fn AMDServiceConnectionReceive(
connection: &ServiceConnection,
buffer: *mut u8,
length: usize,
) -> i32;
}