Interrupts aren't working anymore

src/virtual_fs/virtual_stdin.rs

@@ -0,0 +1,84 @@
+use alloc::{boxed::Box, format};
+use io::{IoBase, Read, Seek, Write};
+
+use crate::{
+    scheduler::ACTIVE_PID,
+    virtual_fs::{FILE_SYSTEM, VirtualFileSystem, VirtualNode},
+};
+
+#[derive(Debug)]
+pub struct VirtualStdin {}
+
+#[derive(Debug)]
+pub struct VirtualStdinNode {}
+
+impl VirtualStdin {
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+impl VirtualFileSystem for VirtualStdin {
+    fn open(
+        &mut self,
+        path: &bffs::path::Path,
+    ) -> Result<alloc::boxed::Box<dyn crate::virtual_fs::VirtualNode + '_>, ()> {
+        if !path.is_empty() {
+            Err(())
+        } else {
+            Ok(Box::new(VirtualStdinNode {}))
+        }
+    }
+}
+
+impl IoBase for VirtualStdinNode {
+    type Error = ();
+}
+
+impl Read for VirtualStdinNode {
+    fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> {
+        let pid = ACTIVE_PID.load(core::sync::atomic::Ordering::Relaxed);
+        unsafe {
+            FILE_SYSTEM
+                .open(format!("/proc/{pid}/0").as_ref())
+                .unwrap()
+                .read(buf)
+        }
+    }
+}
+
+impl Seek for VirtualStdinNode {
+    fn seek(&mut self, pos: io::SeekFrom) -> Result<u64, Self::Error> {
+        let pid = ACTIVE_PID.load(core::sync::atomic::Ordering::Relaxed);
+        unsafe {
+            FILE_SYSTEM
+                .open(format!("/proc/{pid}/0").as_ref())
+                .unwrap()
+                .seek(pos)
+        }
+    }
+}
+
+impl Write for VirtualStdinNode {
+    fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
+        let pid = ACTIVE_PID.load(core::sync::atomic::Ordering::Relaxed);
+        unsafe {
+            FILE_SYSTEM
+                .open(format!("/proc/{pid}/0").as_ref())
+                .unwrap()
+                .write(buf)
+        }
+    }
+
+    fn flush(&mut self) -> Result<(), Self::Error> {
+        let pid = ACTIVE_PID.load(core::sync::atomic::Ordering::Relaxed);
+        unsafe {
+            FILE_SYSTEM
+                .open(format!("/proc/{pid}/0").as_ref())
+                .unwrap()
+                .flush()
+        }
+    }
+}
+
+impl VirtualNode for VirtualStdinNode {}