diff options
Diffstat (limited to 'src/tty/windows')
-rw-r--r-- | src/tty/windows/conpty.rs | 303 | ||||
-rw-r--r-- | src/tty/windows/mod.rs | 334 | ||||
-rw-r--r-- | src/tty/windows/winpty.rs | 182 |
3 files changed, 819 insertions, 0 deletions
diff --git a/src/tty/windows/conpty.rs b/src/tty/windows/conpty.rs new file mode 100644 index 00000000..b16a61c4 --- /dev/null +++ b/src/tty/windows/conpty.rs @@ -0,0 +1,303 @@ +// Copyright 2016 Joe Wilm, The Alacritty Project Contributors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +use super::{process_should_exit, Pty, HANDLE}; + +use std::env; +use std::i16; +use std::mem; +use std::os::windows::io::IntoRawHandle; +use std::ptr; +use std::sync::Arc; + +use dunce::canonicalize; +use mio_anonymous_pipes::{EventedAnonRead, EventedAnonWrite}; +use miow; +use widestring::U16CString; +use winapi::ctypes::c_void; +use winapi::shared::basetsd::{PSIZE_T, SIZE_T}; +use winapi::shared::minwindef::{BYTE, DWORD}; +use winapi::shared::ntdef::{HANDLE, HRESULT, LPCWSTR, LPWSTR}; +use winapi::shared::winerror::S_OK; +use winapi::um::libloaderapi::{GetModuleHandleA, GetProcAddress}; +use winapi::um::processthreadsapi::{ + CreateProcessW, InitializeProcThreadAttributeList, UpdateProcThreadAttribute, + PROCESS_INFORMATION, STARTUPINFOW, +}; +use winapi::um::winbase::{EXTENDED_STARTUPINFO_PRESENT, STARTUPINFOEXW}; +use winapi::um::wincon::COORD; + +use crate::cli::Options; +use crate::config::{Config, Shell}; +use crate::display::OnResize; +use crate::term::SizeInfo; + +// This will be merged into winapi as PR #699 +// TODO: Use the winapi definition directly after that. +pub type HPCON = *mut c_void; + +/// Dynamically-loaded Pseudoconsole API from kernel32.dll +/// +/// The field names are deliberately PascalCase as this matches +/// the defined symbols in kernel32 and also is the convention +/// that the `winapi` crate follows. +#[allow(non_snake_case)] +struct ConptyApi { + CreatePseudoConsole: + unsafe extern "system" fn(COORD, HANDLE, HANDLE, DWORD, *mut HPCON) -> HRESULT, + ResizePseudoConsole: unsafe extern "system" fn(HPCON, COORD) -> HRESULT, + ClosePseudoConsole: unsafe extern "system" fn(HPCON) -> HRESULT, +} + +impl ConptyApi { + /// Load the API or None if it cannot be found. + pub fn new() -> Option<Self> { + // Unsafe because windows API calls + unsafe { + let hmodule = GetModuleHandleA("kernel32\0".as_ptr() as _); + assert!(!hmodule.is_null()); + + let cpc = GetProcAddress(hmodule, "CreatePseudoConsole\0".as_ptr() as _); + let rpc = GetProcAddress(hmodule, "ResizePseudoConsole\0".as_ptr() as _); + let clpc = GetProcAddress(hmodule, "ClosePseudoConsole\0".as_ptr() as _); + + if cpc.is_null() || rpc.is_null() || clpc.is_null() { + None + } else { + Some(Self { + CreatePseudoConsole: mem::transmute(cpc), + ResizePseudoConsole: mem::transmute(rpc), + ClosePseudoConsole: mem::transmute(clpc), + }) + } + } + } +} + +/// RAII Pseudoconsole +pub struct Conpty { + pub handle: HPCON, + api: ConptyApi, +} + +/// Handle can be cloned freely and moved between threads. +pub type ConptyHandle = Arc<Conpty>; + +impl Drop for Conpty { + fn drop(&mut self) { + // The pseusdoconsole might already have been closed by the console process exiting. + // ClosePseudoConsole will fail with error code 1 in that case. + // + // This check should be sufficient to avoid that. + if !process_should_exit() { + let result = unsafe { (self.api.ClosePseudoConsole)(self.handle) }; + + // As noted above, if the pseudoconsole is already closed then + // ClosePseudoConsole will fail with the error code 1. + // (This was not in the MSDN docs as of Nov 2018.) + // + // If ClosePseudoConsole is successful then result is S_OK. + assert!(result == S_OK); + } + } +} + +// The Conpty API can be accessed from multiple threads. +unsafe impl Send for Conpty {} +unsafe impl Sync for Conpty {} + +pub fn new<'a>( + config: &Config, + options: &Options, + size: &SizeInfo, + _window_id: Option<usize>, +) -> Option<Pty<'a>> { + if !config.enable_experimental_conpty_backend() { + return None; + } + + let api = ConptyApi::new()?; + + let mut pty_handle = 0 as HPCON; + + // Passing 0 as the size parameter allows the "system default" buffer + // size to be used. There may be small performance and memory advantages + // to be gained by tuning this in the future, but it's likely a reasonable + // start point. + let (conout, conout_pty_handle) = miow::pipe::anonymous(0).unwrap(); + let (conin_pty_handle, conin) = miow::pipe::anonymous(0).unwrap(); + + let coord = + coord_from_sizeinfo(size).expect("Overflow when creating initial size on pseudoconsole"); + + // Create the Pseudo Console, using the pipes + let result = unsafe { + (api.CreatePseudoConsole)( + coord, + conin_pty_handle.into_raw_handle(), + conout_pty_handle.into_raw_handle(), + 0, + &mut pty_handle as *mut HPCON, + ) + }; + + assert!(result == S_OK); + + let mut success; + + // Prepare child process startup info + + let mut size: SIZE_T = 0; + + let mut startup_info_ex: STARTUPINFOEXW = Default::default(); + startup_info_ex.StartupInfo.cb = mem::size_of::<STARTUPINFOEXW>() as u32; + + // Create the appropriately sized thread attribute list. + unsafe { + success = + InitializeProcThreadAttributeList(ptr::null_mut(), 1, 0, &mut size as PSIZE_T) > 0; + + // This call was expected to return false. + assert!(!success); + } + + let mut attr_list: Box<[BYTE]> = vec![0; size].into_boxed_slice(); + + // Set startup info's attribute list & initialize it + // + // Lint failure is spurious; it's because winapi's definition of PROC_THREAD_ATTRIBUTE_LIST + // implies it is one pointer in size (32 or 64 bits) but really this is just a dummy value. + // Casting a *mut u8 (pointer to 8 bit type) might therefore not be aligned correctly in + // the compiler's eyes. + #[allow(clippy::cast_ptr_alignment)] + { + startup_info_ex.lpAttributeList = attr_list.as_mut_ptr() as _; + } + + unsafe { + success = InitializeProcThreadAttributeList( + startup_info_ex.lpAttributeList, + 1, + 0, + &mut size as PSIZE_T, + ) > 0; + + assert!(success); + } + + // Set thread attribute list's Pseudo Console to the specified ConPTY + unsafe { + success = UpdateProcThreadAttribute( + startup_info_ex.lpAttributeList, + 0, + 22 | 0x0002_0000, // PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE + pty_handle, + mem::size_of::<HPCON>(), + ptr::null_mut(), + ptr::null_mut(), + ) > 0; + + assert!(success); + } + + // Get process commandline + let default_shell = &Shell::new(env::var("COMSPEC").unwrap_or_else(|_| "cmd".into())); + let shell = config.shell().unwrap_or(default_shell); + let initial_command = options.command().unwrap_or(shell); + let mut cmdline = initial_command.args().to_vec(); + cmdline.insert(0, initial_command.program().into()); + + // Warning, here be borrow hell + let cwd = options + .working_dir + .as_ref() + .map(|dir| canonicalize(dir).unwrap()); + let cwd = cwd.as_ref().map(|dir| dir.to_str().unwrap()); + + // Create the client application, using startup info containing ConPTY info + let cmdline = U16CString::from_str(&cmdline.join(" ")).unwrap().into_raw(); + let cwd = cwd.map(|s| U16CString::from_str(&s).unwrap()); + let cwd_ptr = match &cwd { + Some(b) => b.as_ptr() as LPCWSTR, + None => ptr::null(), + }; + + let mut proc_info: PROCESS_INFORMATION = Default::default(); + unsafe { + success = CreateProcessW( + ptr::null(), + cmdline as LPWSTR, + ptr::null_mut(), + ptr::null_mut(), + true as i32, + EXTENDED_STARTUPINFO_PRESENT, + ptr::null_mut(), + cwd_ptr, + &mut startup_info_ex.StartupInfo as *mut STARTUPINFOW, + &mut proc_info as *mut PROCESS_INFORMATION, + ) > 0; + + assert!(success); + } + + // Recover raw memory to cmdline so it can be freed + unsafe { + U16CString::from_raw(cmdline); + } + + // Store handle to console + unsafe { + HANDLE = proc_info.hProcess; + } + + let conin = EventedAnonWrite::new(conin); + let conout = EventedAnonRead::new(conout); + + let agent = Conpty { + handle: pty_handle, + api, + }; + + Some(Pty { + handle: super::PtyHandle::Conpty(ConptyHandle::new(agent)), + conout: super::EventedReadablePipe::Anonymous(conout), + conin: super::EventedWritablePipe::Anonymous(conin), + read_token: 0.into(), + write_token: 0.into(), + }) +} + +impl OnResize for ConptyHandle { + fn on_resize(&mut self, sizeinfo: &SizeInfo) { + if let Some(coord) = coord_from_sizeinfo(sizeinfo) { + let result = unsafe { (self.api.ResizePseudoConsole)(self.handle, coord) }; + assert!(result == S_OK); + } + } +} + +/// Helper to build a COORD from a SizeInfo, returing None in overflow cases. +fn coord_from_sizeinfo(sizeinfo: &SizeInfo) -> Option<COORD> { + let cols = sizeinfo.cols().0; + let lines = sizeinfo.lines().0; + + if cols <= i16::MAX as usize && lines <= i16::MAX as usize { + Some(COORD { + X: sizeinfo.cols().0 as i16, + Y: sizeinfo.lines().0 as i16, + }) + } else { + None + } +} diff --git a/src/tty/windows/mod.rs b/src/tty/windows/mod.rs new file mode 100644 index 00000000..1eb442ad --- /dev/null +++ b/src/tty/windows/mod.rs @@ -0,0 +1,334 @@ +// Copyright 2016 Joe Wilm, The Alacritty Project Contributors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +use std::io::{self, Read, Write}; +use std::os::raw::c_void; + +use mio::{self, Evented, Poll, PollOpt, Ready, Token}; +use mio_anonymous_pipes::{EventedAnonRead, EventedAnonWrite}; +use mio_named_pipes::NamedPipe; + +use winapi::shared::winerror::WAIT_TIMEOUT; +use winapi::um::synchapi::WaitForSingleObject; +use winapi::um::winbase::WAIT_OBJECT_0; + +use crate::cli::Options; +use crate::config::Config; +use crate::display::OnResize; +use crate::term::SizeInfo; +use crate::tty::EventedReadWrite; + +mod conpty; +mod winpty; + +/// Handle to the winpty agent or conpty process. Required so we know when it closes. +static mut HANDLE: *mut c_void = 0usize as *mut c_void; + +pub fn process_should_exit() -> bool { + unsafe { + match WaitForSingleObject(HANDLE, 0) { + // Process has exited + WAIT_OBJECT_0 => { + info!("wait_object_0"); + true + } + // Reached timeout of 0, process has not exited + WAIT_TIMEOUT => false, + // Error checking process, winpty gave us a bad agent handle? + _ => { + info!("Bad exit: {}", ::std::io::Error::last_os_error()); + true + } + } + } +} + +#[derive(Clone)] +pub enum PtyHandle<'a> { + Winpty(winpty::WinptyHandle<'a>), + Conpty(conpty::ConptyHandle), +} + +pub struct Pty<'a> { + handle: PtyHandle<'a>, + // TODO: It's on the roadmap for the Conpty API to support Overlapped I/O. + // See https://github.com/Microsoft/console/issues/262 + // When support for that lands then it should be possible to use + // NamedPipe for the conout and conin handles + conout: EventedReadablePipe, + conin: EventedWritablePipe, + read_token: mio::Token, + write_token: mio::Token, +} + +impl<'a> Pty<'a> { + pub fn resize_handle(&self) -> impl OnResize + 'a { + self.handle.clone() + } +} + +pub fn new<'a>( + config: &Config, + options: &Options, + size: &SizeInfo, + window_id: Option<usize>, +) -> Pty<'a> { + if let Some(pty) = conpty::new(config, options, size, window_id) { + info!("Using Conpty agent."); + pty + } else { + info!("Using Winpty agent."); + winpty::new(config, options, size, window_id) + } +} + +// TODO: The ConPTY API curently must use synchronous pipes as the input +// and output handles. This has led to the need to support two different +// types of pipe. +// +// When https://github.com/Microsoft/console/issues/262 lands then the +// Anonymous variant of this enum can be removed from the codebase and +// everything can just use NamedPipe. +pub enum EventedReadablePipe { + Anonymous(EventedAnonRead), + Named(NamedPipe), +} + +pub enum EventedWritablePipe { + Anonymous(EventedAnonWrite), + Named(NamedPipe), +} + +impl Evented for EventedReadablePipe { + fn register( + &self, + poll: &Poll, + token: Token, + interest: Ready, + opts: PollOpt, + ) -> io::Result<()> { + match self { + EventedReadablePipe::Anonymous(p) => p.register(poll, token, interest, opts), + EventedReadablePipe::Named(p) => p.register(poll, token, interest, opts), + } + } + + fn reregister( + &self, + poll: &Poll, + token: Token, + interest: Ready, + opts: PollOpt, + ) -> io::Result<()> { + match self { + EventedReadablePipe::Anonymous(p) => p.reregister(poll, token, interest, opts), + EventedReadablePipe::Named(p) => p.reregister(poll, token, interest, opts), + } + } + + fn deregister(&self, poll: &Poll) -> io::Result<()> { + match self { + EventedReadablePipe::Anonymous(p) => p.deregister(poll), + EventedReadablePipe::Named(p) => p.deregister(poll), + } + } +} + +impl Read for EventedReadablePipe { + fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { + match self { + EventedReadablePipe::Anonymous(p) => p.read(buf), + EventedReadablePipe::Named(p) => p.read(buf), + } + } +} + +impl Evented for EventedWritablePipe { + fn register( + &self, + poll: &Poll, + token: Token, + interest: Ready, + opts: PollOpt, + ) -> io::Result<()> { + match self { + EventedWritablePipe::Anonymous(p) => p.register(poll, token, interest, opts), + EventedWritablePipe::Named(p) => p.register(poll, token, interest, opts), + } + } + + fn reregister( + &self, + poll: &Poll, + token: Token, + interest: Ready, + opts: PollOpt, + ) -> io::Result<()> { + match self { + EventedWritablePipe::Anonymous(p) => p.reregister(poll, token, interest, opts), + EventedWritablePipe::Named(p) => p.reregister(poll, token, interest, opts), + } + } + + fn deregister(&self, poll: &Poll) -> io::Result<()> { + match self { + EventedWritablePipe::Anonymous(p) => p.deregister(poll), + EventedWritablePipe::Named(p) => p.deregister(poll), + } + } +} + +impl Write for EventedWritablePipe { + fn write(&mut self, buf: &[u8]) -> io::Result<usize> { + match self { + EventedWritablePipe::Anonymous(p) => p.write(buf), + EventedWritablePipe::Named(p) => p.write(buf), + } + } + + fn flush(&mut self) -> io::Result<()> { + match self { + EventedWritablePipe::Anonymous(p) => p.flush(), + EventedWritablePipe::Named(p) => p.flush(), + } + } +} + +impl<'a> OnResize for PtyHandle<'a> { + fn on_resize(&mut self, sizeinfo: &SizeInfo) { + match self { + PtyHandle::Winpty(w) => w.winpty_mut().on_resize(sizeinfo), + PtyHandle::Conpty(c) => { + let mut handle = c.clone(); + handle.on_resize(sizeinfo) + } + } + } +} + +impl<'a> EventedReadWrite for Pty<'a> { + type Reader = EventedReadablePipe; + type Writer = EventedWritablePipe; + + #[inline] + fn register( + &mut self, + poll: &mio::Poll, + token: &mut dyn Iterator<Item = &usize>, + interest: mio::Ready, + poll_opts: mio::PollOpt, + ) -> io::Result<()> { + self.read_token = (*token.next().unwrap()).into(); + self.write_token = (*token.next().unwrap()).into(); + + if interest.is_readable() { + poll.register( + &self.conout, + self.read_token, + mio::Ready::readable(), + poll_opts, + )? + } else { + poll.register( + &self.conout, + self.read_token, + mio::Ready::empty(), + poll_opts, + )? + } + if interest.is_writable() { + poll.register( + &self.conin, + self.write_token, + mio::Ready::writable(), + poll_opts, + )? + } else { + poll.register( + &self.conin, + self.write_token, + mio::Ready::empty(), + poll_opts, + )? + } + Ok(()) + } + + #[inline] + fn reregister( + &mut self, + poll: &mio::Poll, + interest: mio::Ready, + poll_opts: mio::PollOpt, + ) -> io::Result<()> { + if interest.is_readable() { + poll.reregister( + &self.conout, + self.read_token, + mio::Ready::readable(), + poll_opts, + )?; + } else { + poll.reregister( + &self.conout, + self.read_token, + mio::Ready::empty(), + poll_opts, + )?; + } + if interest.is_writable() { + poll.reregister( + &self.conin, + self.write_token, + mio::Ready::writable(), + poll_opts, + )?; + } else { + poll.reregister( + &self.conin, + self.write_token, + mio::Ready::empty(), + poll_opts, + )?; + } + Ok(()) + } + + #[inline] + fn deregister(&mut self, poll: &mio::Poll) -> io::Result<()> { + poll.deregister(&self.conout)?; + poll.deregister(&self.conin)?; + Ok(()) + } + + #[inline] + fn reader(&mut self) -> &mut Self::Reader { + &mut self.conout + } + + #[inline] + fn read_token(&self) -> mio::Token { + self.read_token + } + + #[inline] + fn writer(&mut self) -> &mut Self::Writer { + &mut self.conin + } + + #[inline] + fn write_token(&self) -> mio::Token { + self.write_token + } +} diff --git a/src/tty/windows/winpty.rs b/src/tty/windows/winpty.rs new file mode 100644 index 00000000..a3a45e39 --- /dev/null +++ b/src/tty/windows/winpty.rs @@ -0,0 +1,182 @@ +// Copyright 2016 Joe Wilm, The Alacritty Project Contributors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +use super::{Pty, HANDLE}; + +use std::io; +use std::fs::OpenOptions; +use std::os::windows::io::{FromRawHandle, IntoRawHandle}; +use std::os::windows::fs::OpenOptionsExt; +use std::env; +use std::sync::Arc; +use std::u16; + +use dunce::canonicalize; +use mio_named_pipes::NamedPipe; +use winapi::um::winbase::FILE_FLAG_OVERLAPPED; +use winpty::{ConfigFlags, MouseMode, SpawnConfig, SpawnFlags, Winpty}; +use winpty::Config as WinptyConfig; + +use crate::config::{Config, Shell}; +use crate::display::OnResize; +use crate::cli::Options; +use crate::term::SizeInfo; + +// We store a raw pointer because we need mutable access to call +// on_resize from a separate thread. Winpty internally uses a mutex +// so this is safe, despite outwards appearance. +pub struct Agent<'a> { + winpty: *mut Winpty<'a> +} + +/// Handle can be cloned freely and moved between threads. +pub type WinptyHandle<'a> = Arc<Agent<'a>>; + +// Because Winpty has a mutex, we can do this. +unsafe impl<'a> Send for Agent<'a> {} +unsafe impl<'a> Sync for Agent<'a> {} + +impl<'a> Agent<'a> { + pub fn new(winpty: Winpty<'a>) -> Self { + Self { + winpty: Box::into_raw(Box::new(winpty)) + } + } + + /// Get immutable access to Winpty. + pub fn winpty(&self) -> &Winpty<'a> { + unsafe {&*self.winpty} + } + + /// Get mutable access to Winpty. + /// Can offer internal mutability like this because Winpty uses + /// a mutex internally. + pub fn winpty_mut(&self) -> &mut Winpty<'a> { + unsafe {&mut *self.winpty} + } +} + +impl<'a> Drop for Agent<'a> { + fn drop(&mut self) { + unsafe { Box::from_raw(self.winpty); } + } +} + + +/// How long the winpty agent should wait for any RPC request +/// This is a placeholder value until we see how often long responses happen +const AGENT_TIMEOUT: u32 = 10000; + +pub fn new<'a>( + config: &Config, + options: &Options, + size: &SizeInfo, + _window_id: Option<usize>, +) -> Pty<'a> { + // Create config + let mut wconfig = WinptyConfig::new(ConfigFlags::empty()).unwrap(); + + wconfig.set_initial_size(size.cols().0 as i32, size.lines().0 as i32); + wconfig.set_mouse_mode(&MouseMode::Auto); + wconfig.set_agent_timeout(AGENT_TIMEOUT); + + // Start agent + let mut winpty = Winpty::open(&wconfig).unwrap(); + let (conin, conout) = (winpty.conin_name(), winpty.conout_name()); + + // Get process commandline + let default_shell = &Shell::new(env::var("COMSPEC").unwrap_or_else(|_| "cmd".into())); + let shell = config.shell().unwrap_or(default_shell); + let initial_command = options.command().unwrap_or(shell); + let mut cmdline = initial_command.args().to_vec(); + cmdline.insert(0, initial_command.program().into()); + + // Warning, here be borrow hell + let cwd = options.working_dir.as_ref().map(|dir| canonicalize(dir).unwrap()); + let cwd = cwd.as_ref().map(|dir| dir.to_str().unwrap()); + + // Spawn process + let spawnconfig = SpawnConfig::new( + SpawnFlags::AUTO_SHUTDOWN | SpawnFlags::EXIT_AFTER_SHUTDOWN, + None, // appname + Some(&cmdline.join(" ")), + cwd, + None, // Env + ).unwrap(); + + let default_opts = &mut OpenOptions::new(); + default_opts + .share_mode(0) + .custom_flags(FILE_FLAG_OVERLAPPED); + + let (conout_pipe, conin_pipe); + unsafe { + conout_pipe = NamedPipe::from_raw_handle( + default_opts + .clone() + .read(true) + .open(conout) + .unwrap() + .into_raw_handle(), + ); + conin_pipe = NamedPipe::from_raw_handle( + default_opts + .clone() + .write(true) + .open(conin) + .unwrap() + .into_raw_handle(), + ); + }; + + if let Some(err) = conout_pipe.connect().err() { + if err.kind() != io::ErrorKind::WouldBlock { + panic!(err); + } + } + assert!(conout_pipe.take_error().unwrap().is_none()); + + if let Some(err) = conin_pipe.connect().err() { + if err.kind() != io::ErrorKind::WouldBlock { + panic!(err); + } + } + assert!(conin_pipe.take_error().unwrap().is_none()); + + winpty.spawn(&spawnconfig).unwrap(); + + unsafe { + HANDLE = winpty.raw_handle(); + } + + let agent = Agent::new(winpty); + + Pty { + handle: super::PtyHandle::Winpty(WinptyHandle::new(agent)), + conout: super::EventedReadablePipe::Named(conout_pipe), + conin: super::EventedWritablePipe::Named(conin_pipe), + read_token: 0.into(), + write_token: 0.into() + } +} + +impl<'a> OnResize for Winpty<'a> { + fn on_resize(&mut self, sizeinfo: &SizeInfo) { + let (cols, lines) = (sizeinfo.cols().0, sizeinfo.lines().0); + if cols > 0 && cols <= u16::MAX as usize && lines > 0 && lines <= u16::MAX as usize { + self.set_size(cols as u16, lines as u16) + .unwrap_or_else(|_| info!("Unable to set winpty size, did it die?")); + } + } +} |