Sync computers

crates/shared/Cargo.toml

@@ -4,3 +4,8 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+bffs = { path = "../bffs" }
+
+[features]
+kernel = []
+user = []

crates/shared/src/fs.rs

@@ -0,0 +1,9 @@
+pub struct File {
+    fd: u64,
+}
+
+impl File {
+    pub unsafe fn new(fd: u64) -> Self {
+        Self { fd }
+    }
+}

crates/shared/src/lib.rs

@@ -1,3 +1,4 @@
 #![no_std]
 
+pub mod fs;
 pub mod syscall;

crates/shared/src/syscall.rs

@@ -1,7 +1,10 @@
 use core::{alloc::Layout, time::Duration};
 
+use bffs::path::Path;
+
 #[repr(u64)]
 pub enum SysCall {
+    Open = 2,
     Alloc = 40,
     Dealloc = 41,
     Exit = 60,
@@ -14,6 +17,7 @@ pub enum SysCall {
 impl From<u64> for SysCall {
     fn from(value: u64) -> Self {
         match value {
+            2 => SysCall::Open,
             40 => SysCall::Alloc,
             41 => SysCall::Dealloc,
             60 => SysCall::Exit,
@@ -124,3 +128,12 @@ pub fn dealloc(ptr: *mut u8, layout: core::alloc::Layout) {
         syscall!(SysCall::Dealloc, ptr as u64, size as u64, align as u64);
     }
 }
+pub fn open<'a, P: Into<Path<'a>>>(path: P) -> u64 {
+    unsafe {
+        let path_str = path.into().as_str();
+        let ptr = path_str.as_ptr();
+        let size = path_str.len();
+        let (fd, ..) = syscall!(SysCall::Open, ptr as u64, size as u64);
+        fd
+    }
+}