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Merge 'Add libc fault injection to Antithesis' from Pekka Enberg

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Fixes #2644

Reviewed-by: Preston Thorpe <preston@turso.tech>
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>

Closes #2647
This commit is contained in:
Pekka Enberg
2025-08-20 18:13:32 +03:00
committed by GitHub
parent 1dc6fb97c0 7270e66530
commit 9b22026eda
7 changed files with 178 additions and 19 deletions
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42
core/io/unix.rs
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@@ -192,19 +192,25 @@ impl File for UnixFile {
.file
.try_lock()
.ok_or_else(|| LimboError::LockingError("Failed locking file".to_string()))?;
let result = {
let result = unsafe {
let r = c.as_read();
let buf = r.buf();
rustix::io::pread(file.as_fd(), buf.as_mut_slice(), pos as u64)
let slice = buf.as_mut_slice();
libc::pread(
file.as_raw_fd(),
slice.as_mut_ptr() as *mut libc::c_void,
slice.len(),
pos as libc::off_t,
)
};
match result {
Ok(n) => {
trace!("pread n: {}", n);
// Read succeeded immediately
c.complete(n as i32);
Ok(c)
}
Err(e) => Err(e.into()),
if result == -1 {
let e = std::io::Error::last_os_error();
Err(e.into())
} else {
trace!("pread n: {}", result);
// Read succeeded immediately
c.complete(result as i32);
Ok(c)
}
}
@@ -260,14 +266,14 @@ impl File for UnixFile {
.file
.try_lock()
.ok_or_else(|| LimboError::LockingError("Failed locking file".to_string()))?;
let result = fs::fsync(file.as_fd());
match result {
Ok(()) => {
trace!("fsync");
c.complete(0);
Ok(c)
}
Err(e) => Err(e.into()),
let result = unsafe { libc::fsync(file.as_raw_fd()) };
if result == -1 {
let e = std::io::Error::last_os_error();
Err(e.into())
} else {
trace!("fsync");
c.complete(0);
Ok(c)
}
}