src/boot/boot.asm

@@ -170,7 +170,7 @@ p2_table:
     resb 4096
 
 stack_bottom:
-    resb 100 * 4096
+    resb 4 * 4096
 stack_top:
 
 

src/drivers/atapi/interrupt.rs

@@ -3,16 +3,18 @@ use core::pin::Pin;
 use core::sync::atomic::{AtomicBool, Ordering};
 use core::task::{Context, Poll};
 
-use futures_util::task::AtomicWaker;
 use lazy_static::lazy_static;
+use futures_util::task::AtomicWaker;
 
 lazy_static! {
     pub static ref INTERRUPT_FUTURE: InterruptFuture = InterruptFuture::new();
+
     static ref INTERRUPT: AtomicBool = AtomicBool::new(false);
 }
 
 static WAKER: AtomicWaker = AtomicWaker::new();
 
+
 pub(crate) fn mark_interrupt() {
     INTERRUPT.store(true, Ordering::Relaxed);
     WAKER.wake();
@@ -49,7 +51,7 @@ impl Future for InterruptFuture {
             true => {
                 WAKER.take();
                 Poll::Ready(())
-            }
+            },
             false => Poll::Pending,
         }
     }

src/drivers/atapi/mod.rs

@@ -1,14 +1,14 @@
-pub mod interrupt;
 mod scsi;
+pub mod interrupt;
 
 use crate::{println, serial_println};
-use interrupt::INTERRUPT_FUTURE;
+use scsi::{SCSIPacket};
-use scsi::SCSIPacket;
+use interrupt::{INTERRUPT_FUTURE};
 
 use core::convert::TryInto;
 
-use crate::utils::AsyncMutex;
 use lazy_static::lazy_static;
+use crate::utils::AsyncMutex;
 use x86_64::instructions::port::Port;
 
 const CD_SECTOR_SIZE: usize = 2048;
@@ -54,13 +54,16 @@ static ATAPI_SIG: [u8; 4] = [
     ATAPI_SIG_SC,
     ATAPI_SIG_LBA_LO,
     ATAPI_SIG_LBA_MI,
-    ATAPI_SIG_LBA_HI,
+    ATAPI_SIG_LBA_HI
 ];
 
 lazy_static! {
-    pub static ref DRIVE: AsyncMutex<Option<ATABus>> = AsyncMutex::new(ATABus::discover_atapi_drive());
+    pub static ref DRIVE: AsyncMutex<Option<ATABus>> = {
+        AsyncMutex::new(ATABus::discover_atapi_drive())
+    };
 }
 
+
 pub async fn init() {
     println!("Detecting drives");
     match DRIVE.lock().await.as_ref() {
@@ -69,12 +72,12 @@ pub async fn init() {
             let drive_type = match drive.current_drive {
                 ATA_DRIVE_MASTER => "master",
                 ATA_DRIVE_SLAVE => "slave",
-                _ => "bad",
+                _ => "bad"
             };
             let bus = match drive.base_port {
                 ATA_BUS_PRIMARY => "primary",
                 ATA_BUS_SECONDARY => "secondary",
-                _ => "bad",
+                _ => "bad"
             };
             println!("Detected {} drive on {} bus", drive_type, bus);
         }
@@ -320,12 +323,9 @@ impl ATABus {
     }
 }
 
+
 #[allow(dead_code)]
 pub async fn print_block(lba: u32) {
     let block = DRIVE.lock().await.as_mut().unwrap().read_block(lba).await;
     serial_println!("{:x?}", block);
 }
-
-pub async fn read_block(lba: u32) -> [u8; CD_SECTOR_SIZE] {
-    DRIVE.lock().await.as_mut().unwrap().read_block(lba).await
-}

src/drivers/atapi/scsi.rs

@@ -1,5 +1,5 @@
-use postcard::to_vec;
+use postcard::{to_vec};
-use serde::{Deserialize, Serialize};
+use serde::{Serialize, Deserialize};
 
 #[derive(Default, Serialize, Deserialize, Debug, Eq, PartialEq)]
 #[repr(C, packed)]
@@ -15,7 +15,7 @@ pub struct SCSIPacket {
     transfer_length_milo: u8,
     transfer_length_lo: u8,
     flags_hi: u8,
-    control: u8,
+    control: u8
 }
 
 impl SCSIPacket {

src/drivers/mod.rs

@@ -1,3 +1,3 @@
-pub mod atapi;
 pub mod serial;
 pub mod vga;
+pub mod atapi;

src/fd/mod.rs

@@ -1,26 +1,26 @@
 use crate::println;
 use crate::utils::AsyncMutex;
 
-use alloc::{boxed::Box, collections::BTreeMap, sync::Arc};
+use alloc::{collections::BTreeMap, sync::Arc, boxed::Box};
 use async_trait::async_trait;
 use core::cell::RefCell;
-use core::sync::atomic::{AtomicU32, Ordering};
 use lazy_static::lazy_static;
 
 pub type FDt = Arc<RefCell<dyn FileDescriptor>>;
 
 lazy_static! {
-    pub static ref FD_TABLE: AsyncMutex<FDTable> = AsyncMutex::new(FDTable::new());
+    pub static ref FD_TABLE: AsyncMutex<FDTable> = {
+        AsyncMutex::new(FDTable::new())
+    };
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
-pub struct FDId(u32);
+pub struct FDId(u64);
 
 impl FDId {
     pub fn new() -> Self {
         // TODO: search for first available fd
-        static NEXT_ID: AtomicU32 = AtomicU32::new(0);
+        FDId(1)
-        FDId(NEXT_ID.fetch_add(1, Ordering::Relaxed))
     }
 }
 
@@ -30,25 +30,13 @@ pub struct FDTable {
 
 impl FDTable {
     pub fn new() -> Self {
-        FDTable {
+        FDTable { table: BTreeMap::new() }
-            table: BTreeMap::new(),
-        }
     }
 
-    pub fn unregister_fd(&mut self, fd: &dyn FileDescriptor) {
+    pub async fn register_fd(&mut self, fd: FDt) {
-        self.table.remove(&fd.get_fd());
+        // TODO
-        println!(
-            "Unregistered fd: {:?}",
-            fd.get_fd()
-        );
-    }
-
-    pub fn register_fd(&mut self, fd: FDt) {
         self.table.insert(fd.borrow().get_fd(), fd.clone());
-        println!(
+        println!("Registered fd: {:?}", self.table.get(&FDId(1)).unwrap().borrow().get_fd());
-            "Registered fd: {:?}",
-            self.table.get(&FDId(0)).unwrap().borrow().get_fd()
-        );
     }
 }
 
@@ -56,7 +44,5 @@ impl FDTable {
 pub trait FileDescriptor {
     fn get_fd(&self) -> FDId;
     async fn write(&mut self, buf: &[u8], count: usize) -> isize;
-    async fn read(&mut self, buf: &mut [u8], count: usize) -> isize;
+    async fn read(&mut self, buf: &[u8], count: usize) -> isize;
-    async fn close(&mut self);
-    async fn lseek(&mut self, offset: i32, whence: u32) -> i32;
 }

src/fs/iso/fd.rs

@@ -1,30 +1,19 @@
-use crate::drivers::atapi::read_block;
+use crate::println;
-use crate::fd::{FDId, FDt, FileDescriptor, FD_TABLE};
+use crate::fd::{FDId, FileDescriptor, FDt};
 
-use super::iso9660::{IsoDir, ISO_BLOCK_SIZE};
+use alloc::{sync::Arc, boxed::Box};
-
-use alloc::{boxed::Box, sync::Arc};
 use async_trait::async_trait;
 use core::cell::RefCell;
 
 pub struct IsoFD {
     pub fd: FDId,
-    offset: u32,
-    lba: u32,
-    size: u32
 }
 
 impl IsoFD {
-    pub async fn new(entry: &IsoDir) -> FDt {
+    pub fn new() -> FDt {
-        let fd = Arc::new(RefCell::new(IsoFD {
+        Arc::new(RefCell::new(IsoFD {
             fd: FDId::new(),
-            offset: 0,
+        }))
-            lba: entry.data_blk.le,
-            size: entry.file_size.le,
-        }));
-
-        FD_TABLE.lock().await.register_fd(fd.clone());
-        fd
     }
 }
 
@@ -34,45 +23,12 @@ impl FileDescriptor for IsoFD {
         self.fd
     }
 
-    async fn write(&mut self, _buf: &[u8], _count: usize) -> isize {
+    async fn write(&mut self, buf: &[u8], count: usize) -> isize {
-        -1
+        0
     }
 
-    #[allow(unaligned_references)]
+    async fn read(&mut self, buf: &[u8], count: usize) -> isize {
-    async fn read(&mut self, buf: &mut [u8], count: usize) -> isize {
+        println!("Read from fd");
-        let mut block_offset = self.offset / ISO_BLOCK_SIZE;
+        0
-        let mut content = read_block(self.lba + block_offset).await;
-        let mut read: isize = 0;
-        for _ in 0..count {
-            if self.offset >= self.size {
-                break;
-            }
-
-            buf[read as usize] = content[(self.offset % ISO_BLOCK_SIZE) as usize];
-            read += 1;
-            self.offset += 1;
-
-            if self.offset % ISO_BLOCK_SIZE == 0 {
-                block_offset += 1;
-                content = read_block(self.lba + block_offset).await;
-            }
-        }
-
-        read
-    }
-
-    async fn close(&mut self) {
-        FD_TABLE.lock().await.unregister_fd(self);
-    }
-
-    async fn lseek(&mut self, offset: i32, whence: u32) -> i32 {
-        use crate::syscalls::io::*;
-        match whence {
-            w if w == SEEK_SET => self.offset = offset as u32,
-            w if w == SEEK_CUR => self.offset = (self.offset as i32 + offset) as u32,
-            w if w == SEEK_END => self.offset = (self.size as i32 + offset) as u32,
-            _ => {}
-        };
-        self.offset as i32
     }
 }

src/fs/iso/iso9660.rs

@@ -1,21 +1,22 @@
-pub const ISO_BLOCK_SIZE: u32 = 2048;
+const ISO_BLOCK_SIZE: usize = 2048;
 
 // Twin values structs
 
 #[repr(C, packed)]
 #[derive(Copy, Clone)]
 pub struct MultiEndian32 {
-    pub le: u32, // Little endian value
+    le: u32, // Little endian value
-    pub be: u32, // Big endian value
+    be: u32, // Big endian value
 }
 
 #[repr(C, packed)]
 #[derive(Copy, Clone)]
 pub struct MultiEndian16 {
-    pub le: u16, // Little endian value
+    le: u16, // Little endian value
-    pub be: u16, // Big endian value
+    be: u16, // Big endian value
 }
 
+
 // Path table structure
 
 #[repr(C, packed)]
@@ -25,76 +26,62 @@ struct IsoPathTable {
     ext_size: u8, // Extended attribute record length
     data_blk: u8, // File data block index
     parent_dir: u16, // Number of the parent dir
-    idf: [u8; 0],    // Directory name, of size Self::idf_len
+    idf: [u8; 0] // Directory name, of size Self::idf_len
 }
 
-#[allow(dead_code)]
 impl IsoPathTable {
     #[allow(unaligned_references)]
     pub fn get_idf(&self) -> &[u8] {
-        unsafe { core::slice::from_raw_parts(self.idf.as_ptr(), self.idf_len as usize) }
+        unsafe {
+            core::slice::from_raw_parts(self.idf.as_ptr(), self.idf_len as usize)
         }
     }
+}
+
 
 // Directory structure
 
-#[allow(dead_code)]
-const ISO_MAX_DIR_DEPTH: usize = 8;
 const ISO_DATE_LEN: usize = 7;
 
 #[repr(u8)]
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone)]
-#[allow(dead_code)]
+enum IsoFileType {
-pub enum IsoFileType {
     HIDDEN = 0x1, // Hidden file
     ISDIR = 0x2, // Directory
     ASSOCIAT = 0x4, // Associated
     USEEXT = 0x8, //
     USEPERM = 0x10, //
-    MULTIDIR = 0x80, //
+    MULTIDIR = 0x80 // 
 }
 
 #[repr(C, packed)]
 #[derive(Copy, Clone)]
 pub struct IsoDir {
-    pub dir_size: u8,             // Length of directory record
+    dir_size: u8, // Length of directory record
-    pub ext_size: u8,             // Length of extended attribute record
+    ext_size: u8, // Length of extended attribute record
-    pub data_blk: MultiEndian32,  // File data block index
+    data_blk: MultiEndian32, // File data block index
-    pub file_size: MultiEndian32, // File size
+    file_size: MultiEndian32, // File size
-    pub date: [u8; ISO_DATE_LEN],
+    date: [u8; ISO_DATE_LEN],
-    pub file_type: IsoFileType,
+    file_type: IsoFileType,
 
-    pub unit_size: u8,
+    unit_size: u8,
-    pub gap_size: u8,
+    gap_size: u8,
 
-    pub vol_seq: MultiEndian16,
+    vol_seq: MultiEndian16,
 
-    pub idf_len: u8,  // File name length
+    idf_len: u8, // File name length
-    pub idf: [u8; 0], // File name
+    idf: [u8; 0], // File name
 }
 
 impl IsoDir {
     #[allow(unaligned_references)]
     pub fn get_idf(&self) -> &[u8] {
-        let mut len: usize = self.idf_len as usize;
         unsafe {
-            let mut idf = core::slice::from_raw_parts(self.idf.as_ptr(), len as usize);
+            core::slice::from_raw_parts(self.idf.as_ptr(), self.idf_len as usize)
-            if len > 2 && idf[len - 2] == b';' && idf[len - 1] == b'1' {
-                len -= 2;
-                idf = core::slice::from_raw_parts(self.idf.as_ptr(), len as usize);
         }
-            idf
     }
 }
 
-    pub fn next_entry(&self) -> &IsoDir {
-        crate::utils::ref_raw_offset(self, self.dir_size as isize)
-    }
-
-    pub fn matches(&self, path: &str) -> bool {
-        self.get_idf() == path.as_bytes()
-    }
-}
 
 // Primary volume descriptor structure
 

src/fs/iso/mod.rs

@@ -1,83 +1,37 @@
-mod fd;
 pub mod iso9660;
+mod fd;
 
-use crate::drivers::atapi::read_block;
+use crate::println;
-use crate::fd::{FDt};
+use crate::drivers::atapi::{DRIVE};
+use crate::fd::{FD_TABLE, FDt};
 use crate::utils::unserialize;
 
-use super::FileSystem;
+use iso9660::{IsoPrimVolDesc, IsoDir};
 use fd::IsoFD;
-use iso9660::{IsoDir, IsoPrimVolDesc};
 
-use alloc::{boxed::Box, string::String, vec::Vec};
+pub async fn get_prim_vol_desc() -> IsoPrimVolDesc {
-use async_trait::async_trait;
+    let desc_block = DRIVE
+        .lock()
+        .await
+        .as_mut()
+        .unwrap()
+        .read_block(iso9660::ISO_PRIM_VOLDESC_BLOCK)
+        .await;
+    *unserialize::<IsoPrimVolDesc>(desc_block.as_ptr())
+}
 
-pub struct IsoFS {}
+pub async fn open(path: &str, flags: u32) -> Option<FDt> {
-
-#[async_trait(?Send)]
-#[allow(unaligned_references)]
-impl FileSystem for IsoFS {
-    async fn open(&mut self, path: &str, flags: u32) -> Option<FDt> {
-        // ISO is a read only file system
     if flags != crate::syscalls::io::O_RDONLY {
         return None;
     }
 
     let voldesc = get_prim_vol_desc().await;
 
-        // Invalid ISO
     if voldesc.std_identifier != "CD001".as_bytes() {
         return None;
     }
 
-        let root: &IsoDir = &voldesc.root_dir;
+    let fd = IsoFD::new();
-        let mut curr_entry_block: [u8; iso9660::ISO_BLOCK_SIZE as usize] = read_block(root.data_blk.le).await;
+    FD_TABLE.lock().await.register_fd(fd.clone()).await;
-
+    Some(fd)
-        let mut curr_entry: &IsoDir = unserialize(curr_entry_block.as_ptr());
-
-        let path_s: String = String::from(path);
-        let path_split: Vec<&str> = path_s.split("/").collect();
-        let path_it = path_s
-            .split("/")
-            .filter(|p| p != &"");
-
-        for path_component in path_it {
-            let mut found = false;
-            while curr_entry.idf_len != 0 {
-
-                // Found entry
-                if curr_entry.matches(path_component) {
-                    found = true;
-
-                    // Not the last component, go 1 directory deeper
-                    if path_component != path_split[path_split.len() - 1] {
-                        // Not a directory
-                        if curr_entry.file_type != iso9660::IsoFileType::ISDIR {
-                            return None;
-                        }
-                        // Deeper entries
-                        curr_entry_block = read_block(curr_entry.data_blk.le).await;
-                        curr_entry = unserialize(curr_entry_block.as_ptr());
-                    }
-                    break;
-                }
-
-                // Next entry
-                curr_entry = curr_entry.next_entry();
-            }
-
-            // File not found
-            if !found {
-                return None;
-            }
-        }
-
-        Some(IsoFD::new(curr_entry).await)
-    }
-}
-
-
-pub async fn get_prim_vol_desc() -> IsoPrimVolDesc {
-    let desc_block = read_block(iso9660::ISO_PRIM_VOLDESC_BLOCK).await;
-    *unserialize::<IsoPrimVolDesc>(desc_block.as_ptr())
 }

src/fs/mod.rs

@@ -1,39 +1 @@
 pub mod iso;
-
-use crate::fd::FDt;
-use crate::utils::mutex::AsyncMutex;
-
-use alloc::{boxed::Box, sync::Arc};
-use async_trait::async_trait;
-use core::cell::RefCell;
-use lazy_static::lazy_static;
-
-pub type FSt = Arc<RefCell<dyn FileSystem>>;
-
-lazy_static! {
-    pub static ref VIRTUAL_FS: AsyncMutex<VirtualFS> = AsyncMutex::new(VirtualFS::new());
-}
-
-#[async_trait(?Send)]
-pub trait FileSystem {
-    async fn open(&mut self, path: &str, flags: u32) -> Option<FDt>;
-}
-
-pub struct VirtualFS {
-    fs: FSt,
-}
-
-impl VirtualFS {
-    fn new() -> Self {
-        VirtualFS {
-            fs: Arc::new(RefCell::new(iso::IsoFS {})),
-        }
-    }
-}
-
-#[async_trait(?Send)]
-impl FileSystem for VirtualFS {
-    async fn open(&mut self, path: &str, flags: u32) -> Option<FDt> {
-        self.fs.borrow_mut().open(path, flags).await
-    }
-}

src/interrupts/mod.rs

@@ -4,8 +4,12 @@ use crate::memory::gdt;
 use crate::println;
 use lazy_static::lazy_static;
 use pic::{
-    disk1_interrupt_handler, disk2_interrupt_handler, init_pic, keyboard_interrupt_handler,
+    init_pic,
-    timer_interrupt_handler, InterruptIndex,
+    keyboard_interrupt_handler,
+    timer_interrupt_handler,
+    disk1_interrupt_handler,
+    disk2_interrupt_handler,
+    InterruptIndex
 };
 use x86_64::structures::idt::PageFaultErrorCode;
 use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};

src/interrupts/pic/mod.rs

@@ -1,12 +1,12 @@
 use crate::println;
-pub use disk::{disk1_interrupt_handler, disk2_interrupt_handler};
 pub use keyboard::keyboard_interrupt_handler;
 use pic8259::ChainedPics;
 pub use pit::timer_interrupt_handler;
+pub use disk::{disk1_interrupt_handler, disk2_interrupt_handler};
 
-pub mod disk;
 pub mod keyboard;
 pub mod pit;
+pub mod disk;
 
 pub const PIC_1_OFFSET: u8 = 32;
 pub const PIC_2_OFFSET: u8 = PIC_1_OFFSET + 8;

src/lib.rs

@@ -4,19 +4,18 @@
 #![feature(alloc_error_handler)]
 
 mod drivers;
-mod fd;
-mod fs;
 mod interrupts;
 mod memory;
-mod syscalls;
 mod task;
+mod fs;
 mod utils;
+mod fd;
+mod syscalls;
 
 //#[macro_use]
 extern crate alloc;
 extern crate multiboot2;
 
-use crate::fs::FileSystem;
 use core::panic::PanicInfo;
 use drivers::vga::{self, Color, ColorCode};
 use multiboot2::BootInformation;
@@ -64,23 +63,8 @@ pub extern "C" fn julios_main(multiboot_info_addr: usize) -> ! {
     executor.run();
 }
 
+
 async fn get_file() {
-    let fd = fs::VIRTUAL_FS
+    let fd = fs::iso::open("test", syscalls::io::O_RDONLY).await.unwrap();
-        .lock()
+    fd.borrow_mut().read(&[], 0).await;
-        .await
-        .open("///boot/grub//grub.cfg", syscalls::io::O_RDONLY)
-        .await
-        .unwrap();
-    let mut buf: [u8; 100] = [0; 100];
-    let read = fd.borrow_mut().read(&mut buf, 100).await;
-
-    serial_println!("{:?}", read);
-    serial_println!("{}", alloc::str::from_utf8(&buf).unwrap());
-
-    fd.borrow_mut().lseek(10, syscalls::io::SEEK_SET).await;
-
-    fd.borrow_mut().read(&mut buf, 100).await;
-    serial_println!("{}", alloc::str::from_utf8(&buf).unwrap());
-
-    fd.borrow_mut().close().await;
 }

src/syscalls/io.rs

@@ -2,6 +2,9 @@
 pub const O_RDONLY: u32 = 0;
 
 // seek flags
+#[allow(dead_code)]
 pub const SEEK_SET: u32 = 0;
+#[allow(dead_code)]
 pub const SEEK_CUR: u32 = 1;
+#[allow(dead_code)]
 pub const SEEK_END: u32 = 2;

src/utils/mod.rs

@@ -1,19 +1,5 @@
-pub mod mutex;
 pub mod serialize;
+pub mod mutex;
 
-pub use mutex::AsyncMutex;
 pub use serialize::unserialize;
-
+pub use mutex::AsyncMutex;
-pub fn ref_offset<T>(r: &T, off: isize) -> &T {
-    let ref_ptr: *const T = r;
-    unsafe {
-        return &*ref_ptr.offset(off);
-    }
-}
-
-pub fn ref_raw_offset<T>(r: &T, off: isize) -> &T {
-    let ref_ptr: *const T = r;
-    unsafe {
-        return &*ref_ptr.cast::<u8>().offset(off).cast::<T>();
-    }
-}

src/utils/mutex.rs

@@ -1,10 +1,10 @@
-use alloc::sync::Arc;
-use core::cell::UnsafeCell;
 use core::future::Future;
-use core::ops::{Deref, DerefMut, Drop};
 use core::pin::Pin;
+use core::cell::UnsafeCell;
+use core::ops::{Deref, DerefMut, Drop};
 use core::sync::atomic::{AtomicBool, Ordering};
 use core::task::{Context, Poll};
+use alloc::sync::Arc;
 
 use futures_util::task::AtomicWaker;
 
@@ -14,7 +14,7 @@ struct Lock {
     waker: Arc<AtomicWaker>,
 }
 
-pub struct AsyncMutex<T: ?Sized> {
+pub struct AsyncMutex<T> {
     lock: Lock,
     inner: UnsafeCell<T>,
 }
@@ -23,7 +23,7 @@ pub struct AsyncMutexGuard<'a, T>
 where
     T: 'a,
 {
-    mutex: &'a AsyncMutex<T>,
+    mutex: &'a AsyncMutex<T>
 }
 
 impl Lock {
@@ -58,7 +58,7 @@ impl Future for Lock {
             false => {
                 self.waker.take();
                 Poll::Ready(())
-            }
+            },
             true => Poll::Pending,
         }
     }
@@ -98,12 +98,16 @@ impl<T> Drop for AsyncMutexGuard<'_, T> {
 impl<T> Deref for AsyncMutexGuard<'_, T> {
     type Target = T;
     fn deref(&self) -> &Self::Target {
-        unsafe { &*self.mutex.inner.get() }
+        unsafe {
+            &*self.mutex.inner.get()
+        }
     }
 }
 
 impl<T> DerefMut for AsyncMutexGuard<'_, T> {
     fn deref_mut(&mut self) -> &mut Self::Target {
-        unsafe { &mut *self.mutex.inner.get() }
+        unsafe {
+            &mut *self.mutex.inner.get()
+        }
     }
 }

src/utils/serialize.rs

@@ -1,4 +1,6 @@
 pub fn unserialize<T>(ptr: *const u8) -> &'static T {
     let path_table_ptr: *const T = ptr as *const T;
-    unsafe { &*path_table_ptr }
+    unsafe {
+        &*path_table_ptr
+    }
 }