Initial commit

This commit is contained in:
pjht 2024-06-09 18:29:01 -05:00
commit a74a802f76
Signed by: pjht
GPG Key ID: 7B5F6AFBEC7EE78E
10 changed files with 728 additions and 0 deletions

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edition = "2021"
[dependencies]
parking_lot = "0.12.3"
rmp-serde = "1.3.0"
serde = { version = "1.0.203", features = ["derive"] }

51
devfs_rpc/src/lib.rs Normal file
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#![allow(clippy::result_unit_err)]
use std::{
os::mikros::ipc::rpc::{self, IncomingCall}, path::Path,
};
use parking_lot::RwLock;
static SERVER: RwLock<Option<Box<dyn Server>>> = RwLock::new(None);
const PROTO: u16 = 4;
pub trait Server: Send + Sync {
fn register_dev(&self, from: u64, name: &str) -> Result<(), ()>;
}
#[derive(Copy, Clone)]
pub struct Client(u64);
impl Client {
pub fn new(pid: u64) -> Self {
Self(pid)
}
pub fn register_dev(self, name: &str) -> Result<(), ()> {
rmp_serde::from_slice(
&rpc::send_call(self.0, PROTO, 0, &rmp_serde::to_vec(name).unwrap()).get_return(),
)
.unwrap()
}
}
pub fn register_server(server: Box<dyn Server>) {
*SERVER.write() = Some(server);
rpc::register_callback(PROTO, callback);
}
pub fn unregister_server() {
rpc::unregister_callback(PROTO);
*SERVER.write() = None;
}
fn callback(call: IncomingCall) {
let server_lock = SERVER.read();
let server = server_lock.as_ref().unwrap();
if call.func == 0 {
let kind = rmp_serde::from_slice(&call.args).unwrap();
let ret = rmp_serde::to_vec(&server.register_dev(call.from, kind)).unwrap();
call.send_return(&ret);
}
}

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rust-toolchain.toml Normal file
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[toolchain]
channel = "dev-x86_64-unknown-mikros"

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src/main.rs Normal file
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use std::{collections::HashMap, os::mikros::{ipc, syscalls}, sync::Arc};
use parking_lot::RwLock;
#[derive(Debug, Clone)]
struct Serv {
devices: Arc<RwLock<HashMap<String, u64>>>,
}
impl fs_rpc::Server for Serv {
fn mount(&self, _dev: &std::path::Path, _path: &std::path::Path) -> Result<u64, ()> {
Ok(0)
}
fn open(&self, path: &std::path::Path, _mount_id: u64) -> Result<(Option<u64>, u64), ()> {
let name = path.to_str().ok_or(())?;
let device_pid = *self.devices.read().get(name).ok_or(())?;
let fd = dev_driver_rpc::Client::new(device_pid).open(path)?;
Ok((Some(device_pid), fd))
}
}
impl devfs_rpc::Server for Serv {
fn register_dev(&self, from: u64, name: &str) -> Result<(), ()> {
self.devices.write().insert(name.to_owned(), from);
Ok(())
}
}
fn main() {
let serv = Serv {
devices: Arc::new(RwLock::new(HashMap::new()))
};
fs_rpc::register_server(Box::new(serv.clone()));
devfs_rpc::register_server(Box::new(serv));
let vfs_pid;
loop {
if let Some(pid) = syscalls::try_get_registered(0) {
vfs_pid = pid;
break;
}
}
vfs_rpc::Client::new(vfs_pid).register_fs("devfs").unwrap();
syscalls::register(1);
loop {
ipc::process_messages()
}
}