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fix: stdout and stderr encoding on Windows (#14559)

This commit is contained in:
David Sherret 2022-05-11 12:48:38 -04:00 committed by GitHub
parent b67f874b3f
commit 0ea6b51bf0
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 262 additions and 187 deletions

View file

@ -206,6 +206,20 @@ fn pty_assign_global_this() {
});
}
#[test]
fn pty_emoji() {
// windows was having issues displaying this
util::with_pty(&["repl"], |mut console| {
console.write_line("console.log('🦕');");
console.write_line("close();");
let output = console.read_all_output();
// one for input, one for output
let emoji_count = output.chars().filter(|c| *c == '🦕').count();
assert_eq!(emoji_count, 2);
});
}
#[test]
fn console_log() {
let (out, err) = util::run_and_collect_output(

View file

@ -322,11 +322,8 @@ fn seek_helper(args: SeekArgs) -> Result<(u32, SeekFrom), AnyError> {
#[op]
fn op_seek_sync(state: &mut OpState, args: SeekArgs) -> Result<u64, AnyError> {
let (rid, seek_from) = seek_helper(args)?;
let pos = StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.seek(seek_from).map_err(AnyError::from),
Err(_) => Err(type_error(
"cannot seek on this type of resource".to_string(),
)),
let pos = StdFileResource::with_file(state, rid, |std_file| {
std_file.seek(seek_from).map_err(AnyError::from)
})?;
Ok(pos)
}
@ -343,10 +340,10 @@ async fn op_seek_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || {
let mut std_file = std_file.lock().unwrap();
let mut std_file = std_file.lock();
std_file.seek(seek_from)
})
.await?
@ -358,9 +355,8 @@ fn op_fdatasync_sync(
state: &mut OpState,
rid: ResourceId,
) -> Result<(), AnyError> {
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.sync_data().map_err(AnyError::from),
Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
StdFileResource::with_file(state, rid, |std_file| {
std_file.sync_data().map_err(AnyError::from)
})?;
Ok(())
}
@ -375,10 +371,10 @@ async fn op_fdatasync_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
std_file.sync_data()
})
.await?
@ -387,9 +383,8 @@ async fn op_fdatasync_async(
#[op]
fn op_fsync_sync(state: &mut OpState, rid: ResourceId) -> Result<(), AnyError> {
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.sync_all().map_err(AnyError::from),
Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
StdFileResource::with_file(state, rid, |std_file| {
std_file.sync_all().map_err(AnyError::from)
})?;
Ok(())
}
@ -404,10 +399,10 @@ async fn op_fsync_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
std_file.sync_all()
})
.await?
@ -419,9 +414,8 @@ fn op_fstat_sync(
state: &mut OpState,
rid: ResourceId,
) -> Result<FsStat, AnyError> {
let metadata = StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.metadata().map_err(AnyError::from),
Err(_) => Err(type_error("cannot stat this type of resource".to_string())),
let metadata = StdFileResource::with_file(state, rid, |std_file| {
std_file.metadata().map_err(AnyError::from)
})?;
Ok(get_stat(metadata))
}
@ -436,10 +430,10 @@ async fn op_fstat_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
let metadata = tokio::task::spawn_blocking(move || {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
std_file.metadata()
})
.await?
@ -456,16 +450,13 @@ fn op_flock_sync(
use fs3::FileExt;
super::check_unstable(state, "Deno.flockSync");
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
if exclusive {
std_file.lock_exclusive()?;
} else {
std_file.lock_shared()?;
}
Ok(())
StdFileResource::with_file(state, rid, |std_file| {
if exclusive {
std_file.lock_exclusive()?;
} else {
std_file.lock_shared()?;
}
Err(_) => Err(type_error("cannot lock this type of resource".to_string())),
Ok(())
})
}
@ -483,10 +474,10 @@ async fn op_flock_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || -> Result<(), AnyError> {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
if exclusive {
std_file.lock_exclusive()?;
} else {
@ -505,12 +496,9 @@ fn op_funlock_sync(
use fs3::FileExt;
super::check_unstable(state, "Deno.funlockSync");
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
std_file.unlock()?;
Ok(())
}
Err(_) => Err(type_error("cannot lock this type of resource".to_string())),
StdFileResource::with_file(state, rid, |std_file| {
std_file.unlock()?;
Ok(())
})
}
@ -527,10 +515,10 @@ async fn op_funlock_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || -> Result<(), AnyError> {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
std_file.unlock()?;
Ok(())
})
@ -1590,9 +1578,8 @@ fn op_ftruncate_sync(
) -> Result<(), AnyError> {
let rid = args.rid;
let len = args.len as u64;
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => std_file.set_len(len).map_err(AnyError::from),
Err(_) => Err(type_error("cannot truncate this type of resource")),
StdFileResource::with_file(state, rid, |std_file| {
std_file.set_len(len).map_err(AnyError::from)
})?;
Ok(())
}
@ -1610,10 +1597,10 @@ async fn op_ftruncate_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
std_file.set_len(len)
})
.await?
@ -1879,14 +1866,9 @@ fn op_futime_sync(
let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
StdFileResource::with(state, rid, |r| match r {
Ok(std_file) => {
filetime::set_file_handle_times(std_file, Some(atime), Some(mtime))
.map_err(AnyError::from)
}
Err(_) => Err(type_error(
"cannot futime on this type of resource".to_string(),
)),
StdFileResource::with_file(state, rid, |std_file| {
filetime::set_file_handle_times(std_file, Some(atime), Some(mtime))
.map_err(AnyError::from)
})?;
Ok(())
@ -1907,9 +1889,9 @@ async fn op_futime_async(
.resource_table
.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let std_file = resource.std_file();
tokio::task::spawn_blocking(move || {
let std_file = std_file.lock().unwrap();
let std_file = std_file.lock();
filetime::set_file_handle_times(&std_file, Some(atime), Some(mtime))?;
Ok(())
})

View file

@ -1,10 +1,8 @@
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_core::error::bad_resource_id;
use deno_core::error::not_supported;
use deno_core::error::resource_unavailable;
use deno_core::error::AnyError;
use deno_core::op;
use deno_core::parking_lot::Mutex;
use deno_core::AsyncMutFuture;
use deno_core::AsyncRefCell;
use deno_core::AsyncResult;
@ -20,11 +18,11 @@ use once_cell::sync::Lazy;
use std::borrow::Cow;
use std::cell::RefCell;
use std::fs::File as StdFile;
use std::io::ErrorKind;
use std::io::Read;
use std::io::Write;
use std::rc::Rc;
use std::sync::Arc;
use std::sync::Mutex;
use tokio::io::AsyncRead;
use tokio::io::AsyncReadExt;
use tokio::io::AsyncWrite;
@ -40,6 +38,9 @@ use {
winapi::um::{processenv::GetStdHandle, winbase},
};
// Store the stdio fd/handles in global statics in order to keep them
// alive for the duration of the application since the last handle/fd
// being dropped will close the corresponding pipe.
#[cfg(unix)]
static STDIN_HANDLE: Lazy<StdFile> =
Lazy::new(|| unsafe { StdFile::from_raw_fd(0) });
@ -50,14 +51,6 @@ static STDOUT_HANDLE: Lazy<StdFile> =
static STDERR_HANDLE: Lazy<StdFile> =
Lazy::new(|| unsafe { StdFile::from_raw_fd(2) });
/// Due to portability issues on Windows handle to stdout is created from raw
/// file descriptor. The caveat of that approach is fact that when this
/// handle is dropped underlying file descriptor is closed - that is highly
/// not desirable in case of stdout. That's why we store this global handle
/// that is then cloned when obtaining stdio for process. In turn when
/// resource table is dropped storing reference to that handle, the handle
/// itself won't be closed (so Deno.core.print) will still work.
// TODO(ry) It should be possible to close stdout.
#[cfg(windows)]
static STDIN_HANDLE: Lazy<StdFile> = Lazy::new(|| unsafe {
StdFile::from_raw_handle(GetStdHandle(winbase::STD_INPUT_HANDLE))
@ -122,23 +115,23 @@ pub fn init_stdio(stdio: Stdio) -> Extension {
.expect("Extension only supports being used once.");
let t = &mut state.resource_table;
t.add(StdFileResource::stdio(
match &stdio.stdin {
StdioPipe::Inherit => &STDIN_HANDLE,
StdioPipe::File(pipe) => pipe,
match stdio.stdin {
StdioPipe::Inherit => StdFileResourceInner::Stdin,
StdioPipe::File(pipe) => StdFileResourceInner::file(pipe),
},
"stdin",
));
t.add(StdFileResource::stdio(
match &stdio.stdout {
StdioPipe::Inherit => &STDOUT_HANDLE,
StdioPipe::File(pipe) => pipe,
match stdio.stdout {
StdioPipe::Inherit => StdFileResourceInner::Stdout,
StdioPipe::File(pipe) => StdFileResourceInner::file(pipe),
},
"stdout",
));
t.add(StdFileResource::stdio(
match &stdio.stderr {
StdioPipe::Inherit => &STDERR_HANDLE,
StdioPipe::File(pipe) => pipe,
match stdio.stderr {
StdioPipe::Inherit => StdFileResourceInner::Stderr,
StdioPipe::File(pipe) => StdFileResourceInner::file(pipe),
},
"stderr",
));
@ -301,16 +294,94 @@ impl Resource for ChildStderrResource {
}
}
#[derive(Clone)]
enum StdFileResourceInner {
// Ideally we would store stdio as an StdFile, but we get some Windows
// specific functionality for free by using Rust std's wrappers. So we
// take a bit of a complexity hit here in order to not have to duplicate
// the functionality in Rust's std/src/sys/windows/stdio.rs
Stdin,
Stdout,
Stderr,
File(Arc<Mutex<StdFile>>),
}
impl StdFileResourceInner {
pub fn file(fs_file: StdFile) -> Self {
StdFileResourceInner::File(Arc::new(Mutex::new(fs_file)))
}
pub fn with_file<R>(&self, mut f: impl FnMut(&mut StdFile) -> R) -> R {
match self {
Self::Stdin => f(&mut STDIN_HANDLE.try_clone().unwrap()),
Self::Stdout => f(&mut STDOUT_HANDLE.try_clone().unwrap()),
Self::Stderr => f(&mut STDERR_HANDLE.try_clone().unwrap()),
Self::File(file) => {
let mut file = file.lock();
f(&mut file)
}
}
}
pub fn write_and_maybe_flush(
&mut self,
buf: &[u8],
) -> Result<usize, AnyError> {
let nwritten = self.write(buf)?;
if !matches!(self, StdFileResourceInner::File(_)) {
// Rust will line buffer and we don't want that behavior
// (see https://github.com/denoland/deno/issues/948), so flush.
// Although an alternative solution could be to bypass Rust's std by
// using the raw fds/handles, it will cause encoding issues on Windows
// that we get solved for free by using Rust's stdio wrappers (see
// std/src/sys/windows/stdio.rs in Rust's source code).
self.flush()?;
}
Ok(nwritten)
}
}
impl Read for StdFileResourceInner {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
match self {
Self::Stdout => Err(ErrorKind::Unsupported.into()),
Self::Stderr => Err(ErrorKind::Unsupported.into()),
Self::Stdin => std::io::stdin().read(buf),
Self::File(file) => file.lock().read(buf),
}
}
}
impl Write for StdFileResourceInner {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
match self {
Self::Stdout => std::io::stdout().write(buf),
Self::Stderr => std::io::stderr().write(buf),
Self::Stdin => Err(ErrorKind::Unsupported.into()),
Self::File(file) => file.lock().write(buf),
}
}
fn flush(&mut self) -> std::io::Result<()> {
match self {
Self::Stdout => std::io::stdout().flush(),
Self::Stderr => std::io::stderr().flush(),
Self::Stdin => Err(ErrorKind::Unsupported.into()),
Self::File(file) => file.lock().flush(),
}
}
}
pub struct StdFileResource {
fs_file: Option<Arc<Mutex<StdFile>>>,
inner: StdFileResourceInner,
metadata: RefCell<FileMetadata>,
name: String,
}
impl StdFileResource {
pub fn stdio(std_file: &StdFile, name: &str) -> Self {
fn stdio(inner: StdFileResourceInner, name: &str) -> Self {
Self {
fs_file: std_file.try_clone().map(|s| Arc::new(Mutex::new(s))).ok(),
inner,
metadata: Default::default(),
name: name.to_string(),
}
@ -318,16 +389,24 @@ impl StdFileResource {
pub fn fs_file(fs_file: StdFile) -> Self {
Self {
fs_file: Some(Arc::new(Mutex::new(fs_file))),
inner: StdFileResourceInner::file(fs_file),
metadata: Default::default(),
name: "fsFile".to_string(),
}
}
pub fn std_file(&self) -> Result<Arc<Mutex<StdFile>>, AnyError> {
match &self.fs_file {
Some(fs_file) => Ok(fs_file.clone()),
None => Err(bad_resource_id()),
pub fn std_file(&self) -> Arc<Mutex<StdFile>> {
match &self.inner {
StdFileResourceInner::File(fs_file) => fs_file.clone(),
StdFileResourceInner::Stdin => {
Arc::new(Mutex::new(STDIN_HANDLE.try_clone().unwrap()))
}
StdFileResourceInner::Stdout => {
Arc::new(Mutex::new(STDOUT_HANDLE.try_clone().unwrap()))
}
StdFileResourceInner::Stderr => {
Arc::new(Mutex::new(STDERR_HANDLE.try_clone().unwrap()))
}
}
}
@ -339,49 +418,65 @@ impl StdFileResource {
self: Rc<Self>,
mut buf: ZeroCopyBuf,
) -> Result<(usize, ZeroCopyBuf), AnyError> {
let std_file = self.fs_file.as_ref().unwrap().clone();
let mut inner = self.inner.clone();
tokio::task::spawn_blocking(
move || -> Result<(usize, ZeroCopyBuf), AnyError> {
let mut std_file = std_file.lock().unwrap();
Ok((std_file.read(&mut buf)?, buf))
Ok((inner.read(&mut buf)?, buf))
},
)
.await?
}
async fn write(self: Rc<Self>, buf: ZeroCopyBuf) -> Result<usize, AnyError> {
let std_file = self.fs_file.as_ref().unwrap().clone();
tokio::task::spawn_blocking(move || {
let mut std_file = std_file.lock().unwrap();
std_file.write(&buf)
})
.await?
.map_err(AnyError::from)
let mut inner = self.inner.clone();
tokio::task::spawn_blocking(move || inner.write_and_maybe_flush(&buf))
.await?
.map_err(AnyError::from)
}
pub fn with<F, R>(
fn with_inner<F, R>(
state: &mut OpState,
rid: ResourceId,
mut f: F,
) -> Result<R, AnyError>
where
F: FnMut(Result<&mut std::fs::File, ()>) -> Result<R, AnyError>,
F: FnMut(StdFileResourceInner) -> Result<R, AnyError>,
{
let resource = state.resource_table.get::<StdFileResource>(rid)?;
f(resource.inner.clone())
}
match &resource.fs_file {
Some(r) => f(Ok(&mut r.as_ref().lock().unwrap())),
None => Err(resource_unavailable()),
}
pub fn with_file<F, R>(
state: &mut OpState,
rid: ResourceId,
f: F,
) -> Result<R, AnyError>
where
F: FnMut(&mut StdFile) -> Result<R, AnyError>,
{
let resource = state.resource_table.get::<StdFileResource>(rid)?;
resource.inner.with_file(f)
}
pub fn clone_file(
state: &mut OpState,
rid: ResourceId,
) -> Result<std::fs::File, AnyError> {
Self::with(state, rid, move |r| match r {
Ok(std_file) => std_file.try_clone().map_err(AnyError::from),
Err(_) => Err(bad_resource_id()),
) -> Result<StdFile, AnyError> {
Self::with_file(state, rid, move |std_file| {
std_file.try_clone().map_err(AnyError::from)
})
}
pub fn as_stdio(
state: &mut OpState,
rid: u32,
) -> Result<std::process::Stdio, AnyError> {
Self::with_inner(state, rid, |inner| match inner {
StdFileResourceInner::File(file) => {
let file = file.lock().try_clone()?;
Ok(file.into())
}
_ => Ok(std::process::Stdio::inherit()),
})
}
}
@ -411,13 +506,10 @@ pub fn op_print(
is_err: bool,
) -> Result<(), AnyError> {
let rid = if is_err { 2 } else { 1 };
StdFileResource::with(state, rid, move |r| match r {
Ok(std_file) => {
std_file.write_all(msg.as_bytes())?;
std_file.flush().unwrap();
Ok(())
}
Err(_) => Err(not_supported()),
StdFileResource::with_inner(state, rid, move |mut inner| {
inner.write_all(msg.as_bytes())?;
inner.flush().unwrap();
Ok(())
})
}
@ -427,12 +519,11 @@ fn op_read_sync(
rid: ResourceId,
mut buf: ZeroCopyBuf,
) -> Result<u32, AnyError> {
StdFileResource::with(state, rid, move |r| match r {
Ok(std_file) => std_file
StdFileResource::with_inner(state, rid, move |mut inner| {
inner
.read(&mut buf)
.map(|n: usize| n as u32)
.map_err(AnyError::from),
Err(_) => Err(not_supported()),
.map_err(AnyError::from)
})
}
@ -442,11 +533,10 @@ fn op_write_sync(
rid: ResourceId,
buf: ZeroCopyBuf,
) -> Result<u32, AnyError> {
StdFileResource::with(state, rid, move |r| match r {
Ok(std_file) => std_file
.write(&buf)
StdFileResource::with_inner(state, rid, move |mut inner| {
inner
.write_and_maybe_flush(&buf)
.map(|nwritten: usize| nwritten as u32)
.map_err(AnyError::from),
Err(_) => Err(not_supported()),
.map_err(AnyError::from)
})
}

View file

@ -93,10 +93,7 @@ impl StdioOrRid {
) -> Result<std::process::Stdio, AnyError> {
match &self {
StdioOrRid::Stdio(val) => Ok(val.as_stdio()),
StdioOrRid::Rid(rid) => {
let file = StdFileResource::clone_file(state, *rid)?;
Ok(file.into())
}
StdioOrRid::Rid(rid) => StdFileResource::as_stdio(state, *rid),
}
}
}

View file

@ -1,7 +1,6 @@
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use super::io::StdFileResource;
use deno_core::error::bad_resource_id;
use deno_core::error::AnyError;
use deno_core::op;
use deno_core::Extension;
@ -89,8 +88,8 @@ fn op_set_raw(state: &mut OpState, args: SetRawArgs) -> Result<(), AnyError> {
return Err(deno_core::error::not_supported());
}
let std_file = resource.std_file()?;
let std_file = std_file.lock().unwrap(); // hold the lock
let std_file = resource.std_file();
let std_file = std_file.lock(); // hold the lock
let handle = std_file.as_raw_handle();
if handle == handleapi::INVALID_HANDLE_VALUE {
@ -120,8 +119,8 @@ fn op_set_raw(state: &mut OpState, args: SetRawArgs) -> Result<(), AnyError> {
use std::os::unix::io::AsRawFd;
let resource = state.resource_table.get::<StdFileResource>(rid)?;
let std_file = resource.std_file()?;
let raw_fd = std_file.lock().unwrap().as_raw_fd();
let std_file = resource.std_file();
let raw_fd = std_file.lock().as_raw_fd();
let mut meta_data = resource.metadata_mut();
let maybe_tty_mode = &mut meta_data.tty.mode;
@ -164,25 +163,23 @@ fn op_set_raw(state: &mut OpState, args: SetRawArgs) -> Result<(), AnyError> {
#[op]
fn op_isatty(state: &mut OpState, rid: ResourceId) -> Result<bool, AnyError> {
let isatty: bool = StdFileResource::with(state, rid, move |r| match r {
Ok(std_file) => {
#[cfg(windows)]
{
use winapi::um::consoleapi;
let isatty: bool = StdFileResource::with_file(state, rid, move |std_file| {
#[cfg(windows)]
{
use winapi::shared::minwindef::FALSE;
use winapi::um::consoleapi;
let handle = get_windows_handle(std_file)?;
let mut test_mode: DWORD = 0;
// If I cannot get mode out of console, it is not a console.
Ok(unsafe { consoleapi::GetConsoleMode(handle, &mut test_mode) != 0 })
}
#[cfg(unix)]
{
use std::os::unix::io::AsRawFd;
let raw_fd = std_file.as_raw_fd();
Ok(unsafe { libc::isatty(raw_fd as libc::c_int) == 1 })
}
let handle = get_windows_handle(std_file)?;
let mut test_mode: DWORD = 0;
// If I cannot get mode out of console, it is not a console.
Ok(unsafe { consoleapi::GetConsoleMode(handle, &mut test_mode) != FALSE })
}
#[cfg(unix)]
{
use std::os::unix::io::AsRawFd;
let raw_fd = std_file.as_raw_fd();
Ok(unsafe { libc::isatty(raw_fd as libc::c_int) == 1 })
}
_ => Ok(false),
})?;
Ok(isatty)
}
@ -200,52 +197,47 @@ fn op_console_size(
) -> Result<ConsoleSize, AnyError> {
super::check_unstable(state, "Deno.consoleSize");
let size = StdFileResource::with(state, rid, move |r| match r {
Ok(std_file) => {
#[cfg(windows)]
{
use std::os::windows::io::AsRawHandle;
let handle = std_file.as_raw_handle();
let size = StdFileResource::with_file(state, rid, move |std_file| {
#[cfg(windows)]
{
use std::os::windows::io::AsRawHandle;
let handle = std_file.as_raw_handle();
unsafe {
let mut bufinfo: winapi::um::wincon::CONSOLE_SCREEN_BUFFER_INFO =
std::mem::zeroed();
unsafe {
let mut bufinfo: winapi::um::wincon::CONSOLE_SCREEN_BUFFER_INFO =
std::mem::zeroed();
if winapi::um::wincon::GetConsoleScreenBufferInfo(
handle,
&mut bufinfo,
) == 0
{
return Err(Error::last_os_error().into());
}
Ok(ConsoleSize {
columns: bufinfo.dwSize.X as u32,
rows: bufinfo.dwSize.Y as u32,
})
if winapi::um::wincon::GetConsoleScreenBufferInfo(handle, &mut bufinfo)
== 0
{
return Err(Error::last_os_error().into());
}
}
#[cfg(unix)]
{
use std::os::unix::io::AsRawFd;
let fd = std_file.as_raw_fd();
unsafe {
let mut size: libc::winsize = std::mem::zeroed();
if libc::ioctl(fd, libc::TIOCGWINSZ, &mut size as *mut _) != 0 {
return Err(Error::last_os_error().into());
}
// TODO (caspervonb) return a tuple instead
Ok(ConsoleSize {
columns: size.ws_col as u32,
rows: size.ws_row as u32,
})
}
Ok(ConsoleSize {
columns: bufinfo.dwSize.X as u32,
rows: bufinfo.dwSize.Y as u32,
})
}
}
#[cfg(unix)]
{
use std::os::unix::io::AsRawFd;
let fd = std_file.as_raw_fd();
unsafe {
let mut size: libc::winsize = std::mem::zeroed();
if libc::ioctl(fd, libc::TIOCGWINSZ, &mut size as *mut _) != 0 {
return Err(Error::last_os_error().into());
}
// TODO (caspervonb) return a tuple instead
Ok(ConsoleSize {
columns: size.ws_col as u32,
rows: size.ws_row as u32,
})
}
}
Err(_) => Err(bad_resource_id()),
})?;
Ok(size)