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// SPDX-License-Identifier: BSD-3-Clause
use devices::virtio::{
BincodeRequest, BincodeResponse, InterruptProxy, InterruptProxyEvent, MsgOnSocketRequest,
MsgOnSocketResponse, VirtioDevice, Wl,
};
use msg_socket::MsgSocket;
use poly_msg_socket::PolyMsgSocket;
use std::collections::BTreeMap;
use std::fs::remove_file;
use sys_util::{error, net::UnixSeqpacketListener, warn, GuestMemory};
#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
pub use aarch64::{arch_memory_regions, MemoryParams};
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
pub use x86_64::{arch_memory_regions, MemoryParams};
type Socket =
PolyMsgSocket<MsgOnSocketResponse, MsgOnSocketRequest, BincodeResponse, BincodeRequest>;
fn main() {
eprintln!("hello world");
// Create and display the socket.
let mut path = std::env::var("XDG_RUNTIME_DIR").expect("XDG_RUNTIME_DIR missing");
path.push_str("/crosvm-wl.sock");
let _ = remove_file(&path);
let server = UnixSeqpacketListener::bind(&path).expect("failed to create control socket");
println!("{}", path);
// Receive connection from crosvm.
let conn = server.accept().expect("accept failed");
let msg_socket: Socket = PolyMsgSocket::new(conn);
let vm_socket = match msg_socket.recv() {
Ok(poly_msg_socket::Value::MsgOnSocket(MsgOnSocketRequest::Create { vm_socket })) => {
MsgSocket::new(vm_socket.owned())
}
Ok(msg) => {
panic!("received unexpected message: {:?}", msg);
}
Err(e) => {
panic!("recv error: {}", e);
}
};
let mut wayland_paths = BTreeMap::new();
wayland_paths.insert("".into(), "/run/user/1000/wayland-0".into());
let mut wl = Some(Wl::new(wayland_paths, vm_socket, None).unwrap());
loop {
match msg_socket.recv() {
Ok(poly_msg_socket::Value::MsgOnSocket(MsgOnSocketRequest::Kill)) => {
if let Some(wl) = wl.take() {
// Will block until worker shuts down.
drop(wl);
if let Err(e) = msg_socket.send(MsgOnSocketResponse::Kill) {
error!("failed to send Response::Kill: {}", e);
break;
}
} else {
warn!("received Kill but no Wl is running");
}
}
Ok(poly_msg_socket::Value::MsgOnSocket(MsgOnSocketRequest::Activate {
shm,
interrupt,
interrupt_resample_evt,
in_queue,
out_queue,
in_queue_evt,
out_queue_evt,
})) => {
let shm = shm.owned();
let regions = arch_memory_regions(MemoryParams {
size: shm.size(),
has_bios: false,
});
let mem =
GuestMemory::with_memfd(®ions, shm).expect("GuestMemory::with_memfd failed");
let interrupt: MsgSocket<InterruptProxyEvent, ()> =
MsgSocket::new(interrupt.owned());
wl.as_mut().unwrap().activate(
mem,
Box::new(InterruptProxy::new(
interrupt,
interrupt_resample_evt.owned(),
)),
vec![in_queue, out_queue],
vec![in_queue_evt.owned(), out_queue_evt.owned()],
);
println!("activated Wl");
}
Ok(msg) => panic!("unexpected message {:?}", msg),
Err(e) => panic!("recv failed: {}", e),
}
}
}
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