Function set_inheritable

crates/common/src/fileutils.rs:515–532

(fd: libc::c_int, inheritable: bool)

// Only used on Windows; Unix automatically sets O_CLOEXEC
#[cfg(windows)]
fn set_inheritable(fd: libc::c_int, inheritable: bool) -> std::io::Result<()> {
    use windows_sys::Win32::Foundation::{
        HANDLE, HANDLE_FLAG_INHERIT, INVALID_HANDLE_VALUE, SetHandleInformation,
    };

    let handle = unsafe { libc::get_osfhandle(fd) };
    if handle == INVALID_HANDLE_VALUE as isize {
        return Err(std::io::Error::last_os_error());
    }

    let flags = if inheritable { HANDLE_FLAG_INHERIT } else { 0 };
    let result = unsafe { SetHandleInformation(handle as HANDLE, HANDLE_FLAG_INHERIT, flags) };
    if result == 0 {
        return Err(std::io::Error::last_os_error());
    }

    Ok(())
}