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get_inheritable, dup for windows by youknowone · Pull Request #6343 · RustPython/RustPython · GitHub
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get_inheritable, dup for windows #6343

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Merged
youknowone merged 2 commits into from
Dec 8, 2025
Merged

get_inheritable, dup for windows #6343

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1115046
get_inheritable, dup for windows
youknowone Dec 7, 2025
388bf2b
fix dup
youknowone Dec 8, 2025
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fix dup
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@youknowone
youknowone committed Dec 8, 2025
commit 388bf2b58b0aeb2f35263d908da5357621a08c7f
1 change: 0 additions & 1 deletion Lib/test/test_os.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2102,7 +2102,6 @@ def test_urandom_failure(self):
"""
assert_python_ok('-c', code)

@unittest.expectedFailureIfWindows("TODO: RUSTPYTHON; on Windows (ModuleNotFoundError: No module named 'os')")
def test_urandom_fd_closed(self):
# Issue #21207: urandom() should reopen its fd to /dev/urandom if
# closed.
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19 changes: 13 additions & 6 deletions crates/vm/src/stdlib/nt.rs
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Expand Up @@ -14,7 +14,7 @@ pub(crate) fn make_module(vm: &VirtualMachine) -> PyRef<PyModule> {
pub(crate) mod module {
use crate::{
PyResult, TryFromObject, VirtualMachine,
builtins::{PyDictRef, PyListRef, PyStrRef, PyTupleRef},
builtins::{PyBaseExceptionRef, PyDictRef, PyListRef, PyStrRef, PyTupleRef},
common::{crt_fd, os::last_os_error, suppress_iph},
convert::ToPyException,
function::{Either, OptionalArg},
Expand Down Expand Up @@ -488,6 +488,13 @@ pub(crate) mod module {
fn _dup2(fd: i32, fd2: i32) -> i32;
}

/// Close fd and convert error to PyException (PEP 446 cleanup)
#[cold]
fn close_fd_and_raise(fd: i32, err: std::io::Error, vm: &VirtualMachine) -> PyBaseExceptionRef {
let _ = unsafe { crt_fd::Owned::from_raw(fd) };
err.to_pyexception(vm)
}

#[pyfunction]
fn umask(mask: i32, vm: &VirtualMachine) -> PyResult<i32> {
let result = unsafe { _umask(mask) };
Expand All @@ -504,11 +511,10 @@ pub(crate) mod module {
if fd2 < 0 {
return Err(errno_err(vm));
}
// Set the new fd as non-inheritable
let borrowed = unsafe { crt_fd::Borrowed::borrow_raw(fd2) };
let handle = crt_fd::as_handle(borrowed).map_err(|e| e.to_pyexception(vm))?;
let handle = crt_fd::as_handle(borrowed).map_err(|e| close_fd_and_raise(fd2, e, vm))?;
raw_set_handle_inheritable(handle.as_raw_handle() as _, false)
.map_err(|e| e.to_pyexception(vm))?;
.map_err(|e| close_fd_and_raise(fd2, e, vm))?;
Ok(fd2)
}
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coderabbitai[bot] marked this conversation as resolved.

Expand All @@ -530,9 +536,10 @@ pub(crate) mod module {
}
if !args.inheritable {
let borrowed = unsafe { crt_fd::Borrowed::borrow_raw(args.fd2) };
let handle = crt_fd::as_handle(borrowed).map_err(|e| e.to_pyexception(vm))?;
let handle =
crt_fd::as_handle(borrowed).map_err(|e| close_fd_and_raise(args.fd2, e, vm))?;
raw_set_handle_inheritable(handle.as_raw_handle() as _, false)
.map_err(|e| e.to_pyexception(vm))?;
.map_err(|e| close_fd_and_raise(args.fd2, e, vm))?;
}
Ok(args.fd2)
}
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coderabbitai[bot] marked this conversation as resolved.
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