Merge remote-tracking branch 'origin/master' into v8

This commit is contained in:
Jeremy Soller
2025-09-26 12:03:22 -06:00
11 changed files with 537 additions and 275 deletions
+2 -1
View File
@@ -26,4 +26,5 @@ test:redox:
stage: test
dependencies:
- build:redox
script: redoxer test --verbose
# only run integration test as without KVM unit tests is super slow
script: redoxer test --verbose -- --test '*' -- --nocapture
Generated
+82
View File
@@ -82,6 +82,22 @@ dependencies = [
"blake2",
]
[[package]]
name = "assert_cmd"
version = "2.0.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2bd389a4b2970a01282ee455294913c0a43724daedcd1a24c3eb0ec1c1320b66"
dependencies = [
"anstyle",
"bstr",
"doc-comment",
"libc",
"predicates",
"predicates-core",
"predicates-tree",
"wait-timeout",
]
[[package]]
name = "base64ct"
version = "1.8.0"
@@ -112,6 +128,17 @@ dependencies = [
"generic-array",
]
[[package]]
name = "bstr"
version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "234113d19d0d7d613b40e86fb654acf958910802bcceab913a4f9e7cda03b1a4"
dependencies = [
"memchr",
"regex-automata",
"serde",
]
[[package]]
name = "byteorder"
version = "1.5.0"
@@ -168,6 +195,12 @@ dependencies = [
"powerfmt",
]
[[package]]
name = "difflib"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
[[package]]
name = "digest"
version = "0.10.7"
@@ -179,6 +212,12 @@ dependencies = [
"subtle",
]
[[package]]
name = "doc-comment"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
[[package]]
name = "endian-num"
version = "0.1.2"
@@ -385,6 +424,33 @@ version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
[[package]]
name = "predicates"
version = "3.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a5d19ee57562043d37e82899fade9a22ebab7be9cef5026b07fda9cdd4293573"
dependencies = [
"anstyle",
"difflib",
"predicates-core",
]
[[package]]
name = "predicates-core"
version = "1.0.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "727e462b119fe9c93fd0eb1429a5f7647394014cf3c04ab2c0350eeb09095ffa"
[[package]]
name = "predicates-tree"
version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "72dd2d6d381dfb73a193c7fca536518d7caee39fc8503f74e7dc0be0531b425c"
dependencies = [
"predicates-core",
"termtree",
]
[[package]]
name = "proc-macro2"
version = "1.0.95"
@@ -452,6 +518,7 @@ version = "0.7.1"
dependencies = [
"aes",
"argon2",
"assert_cmd",
"base64ct",
"endian-num",
"env_logger",
@@ -562,6 +629,12 @@ dependencies = [
"redox_termios",
]
[[package]]
name = "termtree"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f50febec83f5ee1df3015341d8bd429f2d1cc62bcba7ea2076759d315084683"
[[package]]
name = "time"
version = "0.3.41"
@@ -614,6 +687,15 @@ version = "0.9.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
[[package]]
name = "wait-timeout"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ac3b126d3914f9849036f826e054cbabdc8519970b8998ddaf3b5bd3c65f11"
dependencies = [
"libc",
]
[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
+4 -1
View File
@@ -69,7 +69,7 @@ std = [
"time",
"uuid/v4",
"redox_syscall/std",
"redox-scheme"
"redox-scheme",
]
[target.'cfg(not(target_os = "redox"))'.dependencies]
@@ -79,3 +79,6 @@ time = { version = "0.3", optional = true }
[lints.rust]
unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[dev-dependencies]
assert_cmd = "2.0.17"
+1 -1
View File
@@ -128,7 +128,7 @@ fn print_usage_exit() -> ! {
}
fn usage() {
println!("redoxfs --no-daemon [-d] [--uuid] [disk or uuid] [mountpoint] [block in hex]");
println!("redoxfs [--no-daemon|-d] [--uuid] [disk or uuid] [mountpoint] [block in hex]");
}
enum DiskId {
+1 -1
View File
@@ -126,7 +126,7 @@ impl DirList {
self.count == 0
}
pub fn entries(&self) -> DirEntryIterator {
pub fn entries(&self) -> DirEntryIterator<'_> {
DirEntryIterator {
dir_list: self,
emit_count: 0,
+3
View File
@@ -10,6 +10,9 @@ use self::scheme::FileScheme;
pub mod resource;
pub mod scheme;
//FIXME: mut callback is not mut
#[allow(unused_mut)]
pub fn mount<D, P, T, F>(filesystem: FileSystem<D>, mountpoint: P, mut callback: F) -> io::Result<T>
where
D: Disk,
+18 -7
View File
@@ -253,9 +253,10 @@ impl<D: Disk> Resource<D> for DirResource {
) -> Result<DirentBuf<&'buf mut [u8]>> {
match &self.data {
Some(data) => {
for (idx, entry) in data.iter().enumerate().skip(opaque_offset as usize) {
let opaque_offset = opaque_offset as usize;
for (idx, entry) in data.iter().enumerate().skip(opaque_offset) {
let child = tx.read_tree(entry.node_ptr)?;
buf.entry(DirEntry {
let result = buf.entry(DirEntry {
inode: child.id() as u64,
next_opaque_id: idx as u64 + 1,
name: &entry.name,
@@ -266,7 +267,15 @@ impl<D: Disk> Resource<D> for DirResource {
//TODO: more types?
_ => DirentKind::Unspecified,
},
})?;
});
if let Err(err) = result {
if err.errno == EINVAL && idx > opaque_offset {
// POSIX allows partial result of getdents
break;
} else {
return Err(err);
}
}
}
Ok(buf)
}
@@ -511,8 +520,8 @@ impl<D: Disk> Resource<D> for FileResource {
if let Some(mut fmap) = v_opt {
fmap.rc += 1;
fmap.flags |= flags;
fmap_info
//FIXME: Use result?
let _ = fmap_info
.ranges
.insert(range.start, range.end - range.start, fmap);
} else {
@@ -526,7 +535,8 @@ impl<D: Disk> Resource<D> for FileResource {
tx,
)?
};
fmap_info.ranges.insert(offset, aligned_size as u64, map);
//FIXME: Use result?
let _ = fmap_info.ranges.insert(offset, aligned_size as u64, map);
}
}
//dbg!(&self.fmaps);
@@ -565,7 +575,8 @@ impl<D: Disk> Resource<D> for FileResource {
}
if fmap.rc > 0 {
fmap_info
//FIXME: Use result?
let _ = fmap_info
.ranges
.insert(range.start, range.end - range.start, fmap);
}
+2 -2
View File
@@ -652,7 +652,7 @@ impl<'sock, D: Disk> SchemeSync for FileScheme<'sock, D> {
let scheme_name = &self.name;
self.fs.tx(|tx| {
let orig_parent_ptr = match file.parent_ptr_opt() {
let _orig_parent_ptr = match file.parent_ptr_opt() {
Some(some) => some,
None => {
// println!("orig is root");
@@ -1043,7 +1043,7 @@ impl<'sock, D: Disk> SchemeSync for FileScheme<'sock, D> {
id: usize,
payload: &mut [u8],
metadata: &[u64],
ctx: &CallerCtx,
_ctx: &CallerCtx,
) -> Result<usize> {
let Some(verb) = FsCall::try_from_raw(metadata[0] as usize) else {
return Err(Error::new(EINVAL));
+7 -261
View File
@@ -1,17 +1,12 @@
use crate::htree::{HTreeHash, HTreeNode, HTreePtr, HTREE_IDX_ENTRIES};
use crate::{
unmount_path, BlockAddr, BlockData, BlockMeta, BlockPtr, DirEntry, DirList, DiskMemory,
BlockAddr, BlockData, BlockMeta, BlockPtr, DirEntry, DirList, DiskMemory,
DiskSparse, FileSystem, Node, TreePtr, ALLOC_GC_THRESHOLD, BLOCK_SIZE,
transaction::FsCtx,
};
use core::panic::AssertUnwindSafe;
use std::panic::catch_unwind;
use std::path::Path;
use std::process::Command;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering::Relaxed;
use std::thread::sleep;
use std::time::Duration;
use std::{fs, thread, time};
use std::{fs, time};
static IMAGE_SEQ: AtomicUsize = AtomicUsize::new(0);
@@ -36,226 +31,6 @@ where
res
}
fn with_mounted<T, F>(callback: F) -> T
where
T: Send + Sync + 'static,
F: FnOnce(&Path) -> T + Send + Sync + 'static,
{
let mount_path_o = format!("image{}", IMAGE_SEQ.fetch_add(1, Relaxed));
let mount_path = mount_path_o.clone();
let res = with_redoxfs(move |fs| {
if cfg!(not(target_os = "redox")) {
if !Path::new(&mount_path).exists() {
dbg!(fs::create_dir(dbg!(&mount_path))).unwrap();
}
}
let join_handle = crate::mount(fs, dbg!(mount_path), move |real_path| {
let real_path = real_path.to_owned();
thread::spawn(move || {
let res = catch_unwind(AssertUnwindSafe(|| callback(&real_path)));
let real_path = real_path.to_str().unwrap();
if cfg!(target_os = "redox") {
dbg!(fs::remove_file(dbg!(format!(":{}", real_path)))).unwrap();
} else {
if !dbg!(Command::new("sync").status()).unwrap().success() {
panic!("sync failed");
}
if !unmount_path(real_path).is_ok() {
// There seems to be a race condition where the device can be busy when trying to unmount.
// So, we pause for a moment and retry. There will still be an error output to the logs
// for the first failed attempt.
sleep(Duration::from_millis(200));
if !unmount_path(real_path).is_ok() {
panic!("umount failed");
}
}
}
res.unwrap()
})
})
.unwrap();
join_handle.join().unwrap()
});
if cfg!(not(target_os = "redox")) {
dbg!(fs::remove_dir(dbg!(mount_path_o))).unwrap();
}
res
}
#[test]
fn simple() {
with_mounted(|path| {
dbg!(fs::create_dir(&path.join("test"))).unwrap();
})
}
#[test]
fn create_and_remove_file() {
with_mounted(|path| {
let file_name = "test_file.txt";
let file_path = path.join(file_name);
// Create the file
fs::write(&file_path, "Hello, world!").unwrap();
assert!(fs::exists(&file_path).unwrap());
// Read the file
let contents = fs::read_to_string(&file_path).unwrap();
assert_eq!(contents, "Hello, world!");
// Remove the file
fs::remove_file(&file_path).unwrap();
assert!(!fs::exists(&file_path).unwrap());
});
}
#[test]
fn create_and_remove_directory() {
with_mounted(|path| {
let dir_name = "test_dir";
let dir_path = path.join(dir_name);
// Create the directory
fs::create_dir(&dir_path).unwrap();
assert!(fs::exists(&dir_path).unwrap());
// Check that the directory is empty
let entries: Vec<_> = fs::read_dir(&dir_path)
.unwrap()
.map(|e| e.unwrap().file_name())
.collect();
assert!(entries.is_empty());
// Add a file to the directory
let file_name = "test_file.txt";
let file_path = dir_path.join(file_name);
fs::write(&file_path, "Hello, world!").unwrap();
// Check that the dir cannot be removed when not empty
let error = fs::remove_dir(&dir_path);
assert!(error.is_err());
assert_eq!(
error.unwrap_err().kind(),
std::io::ErrorKind::DirectoryNotEmpty
);
// Remove the file
fs::remove_file(&file_path).unwrap();
// Remove the directory
fs::remove_dir(&dir_path).unwrap();
assert!(!fs::exists(&dir_path).unwrap());
});
}
#[test]
fn create_and_remove_symlink() {
with_mounted(|path| {
let real_file = "real_file.txt";
let real_path = path.join(real_file);
let symlink_file = "symlink_to_real_file.txt";
let symlink_path = path.join(symlink_file);
// Create the real file
fs::write(&real_path, "Hello, world!").unwrap();
// Create the symmlink according to the platform
#[cfg(unix)]
std::os::unix::fs::symlink(&real_file, &symlink_path).unwrap();
#[cfg(windows)]
std::os::windows::fs::symlink_file(&real_file, &symlink_path).unwrap();
// Check that the symlink exists and points to the correct target
let exists = fs::exists(&symlink_path);
assert!(
exists.is_ok() && exists.unwrap(),
"Symlink should exist but was: {:?}",
fs::exists(&symlink_path)
);
let symlink_metadata = fs::symlink_metadata(&symlink_path).unwrap();
assert!(symlink_metadata.file_type().is_symlink());
let target = fs::read_link(&symlink_path).unwrap();
assert_eq!(target.to_str().unwrap(), real_file);
assert_eq!(fs::read(&symlink_path).unwrap(), b"Hello, world!");
// Confirm the symlink cannot be removed as a directory
let error = fs::remove_dir(&symlink_path);
assert!(error.is_err());
assert_eq!(error.unwrap_err().kind(), std::io::ErrorKind::NotADirectory);
// Remove the symlink
fs::remove_file(&symlink_path).unwrap();
assert!(!fs::exists(&symlink_path).unwrap());
});
}
#[cfg(target_os = "redox")]
#[test]
fn mmap() {
use syscall;
//TODO
with_mounted(|path| {
use std::slice;
let path = dbg!(path.join("test"));
let mmap_inner = |write: bool| {
let fd = dbg!(libredox::call::open(
path.to_str().unwrap(),
libredox::flag::O_CREAT | libredox::flag::O_RDWR | libredox::flag::O_CLOEXEC,
0,
))
.unwrap();
let map = unsafe {
slice::from_raw_parts_mut(
dbg!(libredox::call::mmap(libredox::call::MmapArgs {
fd,
offset: 0,
length: 128,
prot: libredox::flag::PROT_READ | libredox::flag::PROT_WRITE,
flags: libredox::flag::MAP_SHARED,
addr: core::ptr::null_mut(),
}))
.unwrap() as *mut u8,
128,
)
};
// Maps should be available after closing
assert_eq!(dbg!(libredox::call::close(fd)), Ok(()));
for i in 0..128 {
if write {
map[i as usize] = i;
}
assert_eq!(map[i as usize], i);
}
//TODO: add msync
unsafe {
assert_eq!(
dbg!(libredox::call::munmap(map.as_mut_ptr().cast(), map.len())),
Ok(())
);
}
};
mmap_inner(true);
mmap_inner(false);
})
}
#[test]
fn many_create_remove_should_not_increase_size() {
with_redoxfs(|mut fs| {
@@ -466,35 +241,6 @@ fn many_create_write_list_find_read_delete() {
}
}
#[test]
fn many_write_read_delete_mounted() {
with_mounted(|path| {
let total_count = 500;
for i in 0..total_count {
fs::write(
&path.join(format!("file{}", i)),
format!("Hello, number {i}!"),
)
.unwrap();
}
// Confirm each of the created files can be found and read
for i in 0..total_count {
let contents = fs::read_to_string(&path.join(format!("file{}", i))).unwrap();
assert_eq!(contents, format!("Hello, number {i}!"));
}
// Remove all the files
for i in 0..total_count {
let file_path = path.join(format!("file{i}"));
assert!(fs::exists(&file_path).unwrap());
fs::remove_file(&file_path).unwrap();
assert!(!fs::exists(&file_path).unwrap());
}
});
}
//
// MARK: H-Tree tests
//
@@ -515,7 +261,7 @@ fn create_minimal_l2_htree(
let mut parent = tx.read_tree(parent_ptr).unwrap();
let child1_block_data = BlockData::new(
unsafe { tx.allocate(BlockMeta::default()) }.unwrap(),
unsafe { tx.allocate(&mut FsCtx, BlockMeta::default()) }.unwrap(),
Node::new(
Node::MODE_FILE,
parent.data().uid(),
@@ -531,16 +277,16 @@ fn create_minimal_l2_htree(
let mut dir_list = BlockData::<DirList>::empty(BlockAddr::default()).unwrap();
dir_list.data_mut().append(&child1_dir_entry);
let dir_ptr = tx.sync_block(dir_list).unwrap();
let dir_ptr = tx.sync_block(&mut parent, dir_list).unwrap();
let mut l1 = BlockData::<HTreeNode<DirList>>::empty(BlockAddr::default()).unwrap();
l1.data_mut().ptrs[0] = HTreePtr::new(child1_htree_hash, dir_ptr);
let l1_ptr = tx.sync_block(l1).unwrap();
let l1_ptr = tx.sync_block(&mut parent, l1).unwrap();
let mut l2 =
BlockData::<HTreeNode<HTreeNode<DirList>>>::empty(BlockAddr::default()).unwrap();
l2.data_mut().ptrs[0] = HTreePtr::new(child1_htree_hash, l1_ptr);
let l2_ptr = tx.sync_block(l2).unwrap();
let l2_ptr = tx.sync_block(&mut parent, l2).unwrap();
let l2_ptr = unsafe { l2_ptr.cast() };
parent.data_mut().level0[0] = BlockPtr::marker(2);
+1 -1
View File
@@ -19,7 +19,7 @@ use crate::{
TreePtr, ALLOC_GC_THRESHOLD, ALLOC_LIST_ENTRIES, DIR_ENTRY_MAX_LENGTH, HEADER_RING,
};
trait AllocCtx {
pub trait AllocCtx {
fn allocate(&mut self, _addr: BlockAddr) {}
fn deallocate(&mut self, _addr: BlockAddr) {}
}
+416
View File
@@ -0,0 +1,416 @@
use assert_cmd::cargo::CommandCargoExt;
use core::panic::AssertUnwindSafe;
use redoxfs::{unmount_path, DirEntry, DiskMemory, DiskSparse, FileSystem, Node, TreePtr};
use std::panic::catch_unwind;
use std::path::Path;
use std::process::Command;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering::Relaxed;
use std::thread::sleep;
use std::time::Duration;
use std::{env, fs, time};
static IMAGE_SEQ: AtomicUsize = AtomicUsize::new(0);
fn with_redoxfs<T, F>(callback: F) -> T
where
T: Send + Sync + 'static,
F: FnOnce(&str) -> T + Send + Sync + 'static,
{
let disk_path = format!("image{}.bin", IMAGE_SEQ.fetch_add(1, Relaxed));
{
let disk = DiskSparse::create(dbg!(&disk_path), 1024 * 1024 * 1024).unwrap();
let ctime = dbg!(time::SystemTime::now().duration_since(time::UNIX_EPOCH)).unwrap();
FileSystem::create(disk, None, ctime.as_secs(), ctime.subsec_nanos()).unwrap();
}
let res = callback(&disk_path);
dbg!(fs::remove_file(dbg!(disk_path))).unwrap();
res
}
fn with_mounted<T, F>(callback: F) -> T
where
T: Send + Sync + 'static,
F: FnOnce(&Path) -> T + Send + Sync + 'static,
{
let mount_path_o = format!("image{}", IMAGE_SEQ.fetch_add(1, Relaxed));
let mount_path = mount_path_o.clone();
let res = with_redoxfs(move |fs| {
// At redox, we mount on /scheme/ path, no need an empty dir
if cfg!(not(target_os = "redox")) {
if !Path::new(&mount_path).exists() {
dbg!(fs::create_dir(dbg!(&mount_path))).unwrap();
}
} else {
//FIXME: cargo_bin is broken when cross compiling. This is redoxer specific workaround
env::set_var(
"CARGO_BIN_EXE_redoxfs",
"/root/target/x86_64-unknown-redox/debug/redoxfs",
);
}
let mut mount_cmd = Command::cargo_bin("redoxfs").expect("unable to find mount bin");
mount_cmd.arg("-d").arg(dbg!(&fs)).arg(dbg!(&mount_path));
let mut child = mount_cmd.spawn().expect("mount failed to run");
let real_path = if cfg!(target_os = "redox") {
let real_path = dbg!(Path::new("/scheme").join(&mount_path));
let mut tries = 0;
loop {
if real_path.exists() {
break;
}
tries += 1;
if tries == 10 {
panic!("Fail to wait for mount")
}
println!("{tries}");
sleep(Duration::from_millis(500));
}
real_path
} else {
sleep(Duration::from_millis(200));
let r = Path::new(".").join(&mount_path);
r
};
let res = catch_unwind(AssertUnwindSafe(|| callback(&real_path)));
sleep(Duration::from_millis(200));
child.kill().expect("Can't kill");
if cfg!(target_os = "redox") {
unmount_path(&mount_path).unwrap();
} else {
if !dbg!(Command::new("sync").status()).unwrap().success() {
panic!("sync failed");
}
if !unmount_path(&mount_path).is_ok() {
// There seems to be a race condition where the device can be busy when trying to unmount.
// So, we pause for a moment and retry. There will still be an error output to the logs
// for the first failed attempt.
sleep(Duration::from_millis(200));
if !unmount_path(&mount_path).is_ok() {
panic!("umount failed");
}
}
}
res.expect("Test failed")
});
if cfg!(not(target_os = "redox")) {
dbg!(fs::remove_dir(dbg!(mount_path_o))).unwrap();
}
res
}
#[test]
fn simple() {
with_mounted(|path| {
dbg!(fs::create_dir(&path.join("test"))).unwrap();
})
}
#[test]
fn create_and_remove_file() {
with_mounted(|path| {
let file_name = "test_file.txt";
let file_path = path.join(file_name);
// Create the file
fs::write(&file_path, "Hello, world!").unwrap();
assert!(fs::exists(&file_path).unwrap());
// Read the file
let contents = fs::read_to_string(&file_path).unwrap();
assert_eq!(contents, "Hello, world!");
// Remove the file
fs::remove_file(&file_path).unwrap();
assert!(!fs::exists(&file_path).unwrap());
});
}
#[test]
fn create_and_remove_directory() {
with_mounted(|path| {
let dir_name = "test_dir";
let dir_path = path.join(dir_name);
// Create the directory
fs::create_dir(&dir_path).expect(&format!("cannot create dir {}", &dir_path.display()));
assert!(fs::exists(&dir_path).unwrap());
// Check that the directory is empty
let entries: Vec<_> = fs::read_dir(&dir_path)
.unwrap()
.map(|e| e.unwrap().file_name())
.collect();
assert!(entries.is_empty());
// Add a file to the directory
let file_name = "test_file.txt";
let file_path = dir_path.join(file_name);
fs::write(&file_path, "Hello, world!").unwrap();
// Check that the dir cannot be removed when not empty
let error = fs::remove_dir(&dir_path);
assert!(error.is_err());
assert_eq!(
error.unwrap_err().kind(),
std::io::ErrorKind::DirectoryNotEmpty
);
// Remove the file
fs::remove_file(&file_path).unwrap();
// Remove the directory
fs::remove_dir(&dir_path).unwrap();
assert!(!fs::exists(&dir_path).unwrap());
});
}
#[test]
fn create_and_remove_symlink() {
with_mounted(|path| {
let real_file = "real_file.txt";
let real_path = path.join(real_file);
let symlink_file = "symlink_to_real_file.txt";
let symlink_path = path.join(symlink_file);
// Create the real file
fs::write(&real_path, "Hello, world!").unwrap();
// Create the symmlink according to the platform
#[cfg(unix)]
std::os::unix::fs::symlink(&real_file, &symlink_path).unwrap();
#[cfg(windows)]
std::os::windows::fs::symlink_file(&real_file, &symlink_path).unwrap();
// Check that the symlink exists and points to the correct target
let exists = fs::exists(&symlink_path);
assert!(
exists.is_ok() && exists.unwrap(),
"Symlink should exist but was: {:?}",
fs::exists(&symlink_path)
);
let symlink_metadata = fs::symlink_metadata(&symlink_path).unwrap();
assert!(symlink_metadata.file_type().is_symlink());
let target = fs::read_link(&symlink_path).unwrap();
assert_eq!(target.to_str().unwrap(), real_file);
assert_eq!(fs::read(&symlink_path).unwrap(), b"Hello, world!");
// Confirm the symlink cannot be removed as a directory
let error = fs::remove_dir(&symlink_path);
assert!(error.is_err());
assert_eq!(error.unwrap_err().kind(), std::io::ErrorKind::NotADirectory);
// Remove the symlink
fs::remove_file(&symlink_path).unwrap();
assert!(!fs::exists(&symlink_path).unwrap());
});
}
#[cfg(target_os = "redox")]
#[test]
fn mmap() {
//TODO
with_mounted(|path| {
use std::slice;
let path = dbg!(path.join("test"));
let mmap_inner = |write: bool| {
let fd = dbg!(libredox::call::open(
path.to_str().unwrap(),
libredox::flag::O_CREAT | libredox::flag::O_RDWR | libredox::flag::O_CLOEXEC,
0,
))
.unwrap();
let map = unsafe {
slice::from_raw_parts_mut(
dbg!(libredox::call::mmap(libredox::call::MmapArgs {
fd,
offset: 0,
length: 128,
prot: libredox::flag::PROT_READ | libredox::flag::PROT_WRITE,
flags: libredox::flag::MAP_SHARED,
addr: core::ptr::null_mut(),
}))
.unwrap() as *mut u8,
128,
)
};
// Maps should be available after closing
assert_eq!(dbg!(libredox::call::close(fd)), Ok(()));
for i in 0..128 {
if write {
map[i as usize] = i;
}
assert_eq!(map[i as usize], i);
}
//TODO: add msync
unsafe {
assert_eq!(
dbg!(libredox::call::munmap(map.as_mut_ptr().cast(), map.len())),
Ok(())
);
}
};
mmap_inner(true);
mmap_inner(false);
})
}
// TODO: When increasing the total_count to 8000, the Allocator's deallocate() function surfaces as "slow" according to flamegraph. This
// appears to be the result of bulk deleting in this test, but I would bet that any filesystem that has lived for a long time would
// start to see degraded performance due to this.
#[test]
fn many_create_write_list_find_read_delete() {
let disk = DiskMemory::new(1024 * 1024 * 1024);
let ctime = time::SystemTime::now()
.duration_since(time::UNIX_EPOCH)
.unwrap();
let mut fs = FileSystem::create(disk, None, ctime.as_secs(), ctime.subsec_nanos()).unwrap();
let tree_ptr = TreePtr::<Node>::root();
let total_count = 3000;
// Create a bunch of files
for i in 0..total_count {
let result = fs.tx(|tx| {
tx.create_node(
tree_ptr,
&format!("file{i:05}"),
Node::MODE_FILE | 0644,
1,
0,
)
});
if result.is_err() {
println!("Failure on create iteration {i}");
}
let file_node = result.unwrap();
let result = fs.tx(|tx| {
tx.write_node(
file_node.ptr(),
0,
format!("Hello World! #{i}").as_bytes(),
ctime.as_secs(),
ctime.subsec_nanos(),
)
});
if result.is_err() {
println!("Failure on write iteration {i}");
}
assert!(result.unwrap() > 0)
}
// Confirm that they can be listed
{
let mut children = Vec::<DirEntry>::with_capacity(total_count);
let _ = fs.tx(|tx| tx.child_nodes(tree_ptr, &mut children)).unwrap();
assert_eq!(
children.len(),
total_count,
"The list of children should match the number of files created."
);
let mut children: Vec<String> = children
.iter()
.map(|entry| entry.name().unwrap_or_default().to_string())
.collect();
children.sort();
for i in 0..total_count {
let expected = format!("file{i:05}");
let idx = children.binary_search(&expected);
assert!(idx.is_ok(), "Children did not contain '{}'", expected);
}
}
// Find and read the files
for i in 0..total_count {
let result = fs.tx(|tx| tx.find_node(tree_ptr, &format!("file{i:05}")));
if result.is_err() {
println!("Failure on find node iteration {i}");
}
let file_node = result.unwrap();
let offset = 0;
let mut buf = [0_u8; 32];
let result = fs.tx(|tx| {
tx.read_node(
file_node.ptr(),
offset,
&mut buf,
ctime.as_secs(),
ctime.subsec_nanos(),
)
});
if result.is_err() {
println!("Failure on read iteration {i}");
}
let size = result.unwrap();
let body = std::str::from_utf8(&buf[..size]).unwrap();
assert_eq!(body, format!("Hello World! #{i}"));
}
// Delete all the files
for i in 0..total_count {
let file_name = format!("file{i:05}");
let result = fs.tx(|tx| tx.remove_node(tree_ptr, &file_name, Node::MODE_FILE));
if result.is_err() {
println!("Failure on delete iteration {i}");
result.unwrap();
}
let result = fs.tx(|tx| tx.find_node(tree_ptr, &file_name));
if !result.is_err() || result.err().unwrap().errno != syscall::error::ENOENT {
println!("Failure on delete verification iteration {i}");
assert!(false, "Deletion appears to ahve failred");
}
}
}
#[test]
fn many_write_read_delete_mounted() {
with_mounted(|path| {
let total_count = 500;
for i in 0..total_count {
fs::write(
&path.join(format!("file{}", i)),
format!("Hello, number {i}!"),
)
.unwrap();
}
// Confirm each of the created files can be found and read
for i in 0..total_count {
let contents = fs::read_to_string(&path.join(format!("file{}", i))).unwrap();
assert_eq!(contents, format!("Hello, number {i}!"));
}
// Remove all the files
for i in 0..total_count {
let file_path = path.join(format!("file{i}"));
assert!(fs::exists(&file_path).unwrap());
fs::remove_file(&file_path).unwrap();
assert!(!fs::exists(&file_path).unwrap());
}
});
}