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

os.waitstatus_to_exitcode for windows #6355

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c5b2b41
fix waitstatus_to_exitcode
youknowone Dec 8, 2025
f22bac7
msg
youknowone Dec 8, 2025
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2 changes: 0 additions & 2 deletions Lib/test/test_os.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3431,7 +3431,6 @@ def test_waitstatus_to_exitcode(self):
with self.assertRaises(TypeError):
os.waitstatus_to_exitcode(0.0)

@unittest.expectedFailureIfWindows('TODO: RUSTPYTHON; os.spawnv not implemented yet for all platforms')
@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')
def test_waitpid_windows(self):
# bpo-40138: test os.waitpid() and os.waitstatus_to_exitcode()
Expand All @@ -3440,7 +3439,6 @@ def test_waitpid_windows(self):
code = f'import _winapi; _winapi.ExitProcess({STATUS_CONTROL_C_EXIT})'
self.check_waitpid(code, exitcode=STATUS_CONTROL_C_EXIT)

@unittest.expectedFailureIfWindows('TODO: RUSTPYTHON; (OverflowError: Python int too large to convert to Rust i32)')
@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')
def test_waitstatus_to_exitcode_windows(self):
max_exitcode = 2 ** 32 - 1
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35 changes: 19 additions & 16 deletions crates/vm/src/stdlib/os.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1421,29 +1421,32 @@ pub(super) mod _os {
Ok((loadavg[0], loadavg[1], loadavg[2]))
}

#[cfg(any(unix, windows))]
#[cfg(unix)]
#[pyfunction]
fn waitstatus_to_exitcode(status: i32, vm: &VirtualMachine) -> PyResult<i32> {
let status = u32::try_from(status)
.map_err(|_| vm.new_value_error(format!("invalid WEXITSTATUS: {status}")))?;

cfg_if::cfg_if! {
if #[cfg(not(windows))] {
let status = status as libc::c_int;
if libc::WIFEXITED(status) {
return Ok(libc::WEXITSTATUS(status));
}

if libc::WIFSIGNALED(status) {
return Ok(-libc::WTERMSIG(status));
}
let status = status as libc::c_int;
if libc::WIFEXITED(status) {
return Ok(libc::WEXITSTATUS(status));
}

Err(vm.new_value_error(format!("Invalid wait status: {status}")))
} else {
i32::try_from(status.rotate_right(8))
.map_err(|_| vm.new_value_error(format!("invalid wait status: {status}")))
}
if libc::WIFSIGNALED(status) {
return Ok(-libc::WTERMSIG(status));
}

Err(vm.new_value_error(format!("Invalid wait status: {status}")))
}

#[cfg(windows)]
#[pyfunction]
fn waitstatus_to_exitcode(status: u64, vm: &VirtualMachine) -> PyResult<u32> {
let exitcode = status >> 8;
// ExitProcess() accepts an UINT type:
// reject exit code which doesn't fit in an UINT
u32::try_from(exitcode)
.map_err(|_| vm.new_value_error(format!("Invalid exit code: {exitcode}")))
}

#[pyfunction]
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