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use std::io;

use windows_sys::Win32::{

Foundation::HANDLE,

System::Console::{INPUT_RECORD, KEY_EVENT, WriteConsoleInputW},

};

use crate::windows::{CheckWin32Bool, CheckWin32Handle};

pub fn write_console_input(fd: i32, data: &[u16]) -> io::Result<()> {

let handle = (unsafe { libc::get_osfhandle(fd) } as HANDLE).check_valid()?;

let size = data.len() as u32;

let mut records: Vec<INPUT_RECORD> = Vec::with_capacity(data.len());

for &wc in data {

let mut rec: INPUT_RECORD = unsafe { core::mem::zeroed() };

rec.EventType = KEY_EVENT as u16;

rec.Event.KeyEvent.bKeyDown = 1;

rec.Event.KeyEvent.wRepeatCount = 1;

rec.Event.KeyEvent.uChar.UnicodeChar = wc;

records.push(rec);

}

let mut total: u32 = 0;

while total < size {

let mut wrote: u32 = 0;

unsafe {

WriteConsoleInputW(

handle,

records[total as usize..].as_ptr(),

size - total,

&mut wrote,

)

}

.check_win32_bool()?;

if wrote == 0 {

return Err(io::Error::new(

io::ErrorKind::WriteZero,

"WriteConsoleInputW made no progress",

));

}

total += wrote;

}

Ok(())

}