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|
use std::collections::HashMap;
use std::path::PathBuf;
use std::sync::{Arc, Mutex};
use interprocess::local_socket::Stream as LocalSocketStream;
use zellij_server::os_input_output::{AsyncReader, ServerOsApi};
use zellij_server::panes::PaneId;
use zellij_server::ClientId;
use zellij_utils::data::Palette;
use zellij_utils::errors::prelude::*;
use zellij_utils::input::command::{RunCommand, TerminalAction};
use zellij_utils::ipc::{
ClientToServerMsg, IpcReceiverWithContext, IpcSenderWithContext, ServerToClientMsg,
};
use zellij_utils::shared::default_palette;
use crate::fake_pty::{SharedPtys, FAKE_PID_BASE};
#[derive(Clone)]
struct NonBlockingClientSender {
buffer_tx: crossbeam::channel::Sender<ServerToClientMsg>,
}
impl NonBlockingClientSender {
fn new(mut ipc_sender: IpcSenderWithContext<ServerToClientMsg>) -> Self {
let (buffer_tx, buffer_rx) = crossbeam::channel::bounded::<ServerToClientMsg>(5000);
std::thread::Builder::new()
.name("non_blocking_client_sender".to_string())
.spawn(move || {
for msg in buffer_rx.iter() {
if ipc_sender.send_server_msg(msg).is_err() {
break;
}
}
})
.unwrap();
NonBlockingClientSender { buffer_tx }
}
}
#[derive(Clone, Default)]
pub struct FakeServerOsApi {
pub shared_ptys: SharedPtys,
non_blocking_client_senders: Arc<Mutex<HashMap<ClientId, NonBlockingClientSender>>>,
fake_filesystem: Arc<Mutex<HashMap<String, String>>>,
}
impl FakeServerOsApi {
pub fn written_files(&self) -> HashMap<String, String> {
self.fake_filesystem.lock().unwrap().clone()
}
pub fn connected_client_count(&self) -> usize {
self.non_blocking_client_senders.lock().unwrap().len()
}
}
impl ServerOsApi for FakeServerOsApi {
fn set_terminal_size_using_terminal_id(
&self,
id: u32,
cols: u16,
rows: u16,
_width_in_pixels: Option<u16>,
_height_in_pixels: Option<u16>,
) -> Result<()> {
self.shared_ptys.set_size(id, cols, rows);
Ok(())
}
fn spawn_terminal(
&self,
terminal_action: TerminalAction,
quit_cb: Box<dyn Fn(PaneId, Option<i32>, RunCommand) + Send>,
_default_editor: Option<PathBuf>,
) -> Result<(u32, Box<dyn AsyncReader>, Option<u32>)> {
let terminal_id = self.shared_ptys.next_terminal_id();
let opened_file_contents = match &terminal_action {
TerminalAction::OpenFile(payload) => self
.fake_filesystem
.lock()
.unwrap()
.get(&payload.path.to_string_lossy().to_string())
.cloned(),
_ => None,
};
let fake_async_reader =
self.shared_ptys
.register(terminal_id, Some(terminal_action), Some(quit_cb));
if let Some(contents) = opened_file_contents {
let contents_with_carriage_returns =
contents.replace("\r\n", "\n").replace('\n', "\r\n");
self.shared_ptys
.write_output(terminal_id, contents_with_carriage_returns.as_bytes());
}
Ok((
terminal_id,
fake_async_reader,
Some(FAKE_PID_BASE + terminal_id),
))
}
fn reserve_terminal_id(&self) -> Result<u32> {
let terminal_id = self.shared_ptys.next_terminal_id();
let _ = self.shared_ptys.register(terminal_id, None, None);
Ok(terminal_id)
}
fn write_to_tty_stdin(&self, terminal_id: u32, buf: &[u8]) -> Result<usize> {
if self.shared_ptys.append_stdin(terminal_id, buf) {
Ok(buf.len())
} else {
Err(anyhow!("no fake pty for terminal id {terminal_id}"))
}
}
fn tcdrain(&self, _terminal_id: u32) -> Result<()> {
Ok(())
}
fn kill(&self, pid: u32) -> Result<()> {
self.shared_ptys
.exit_terminal(pid.saturating_sub(FAKE_PID_BASE), None);
Ok(())
}
fn force_kill(&self, pid: u32) -> Result<()> {
self.shared_ptys
.exit_terminal(pid.saturating_sub(FAKE_PID_BASE), None);
Ok(())
}
fn send_sigint(&self, pid: u32) -> Result<()> {
self.shared_ptys
.exit_terminal(pid.saturating_sub(FAKE_PID_BASE), None);
Ok(())
}
fn box_clone(&self) -> Box<dyn ServerOsApi> {
Box::new(self.clone())
}
fn send_to_client(&self, client_id: ClientId, msg: ServerToClientMsg) -> Result<()> {
if let Some(non_blocking_client_sender) = self
.non_blocking_client_senders
.lock()
.unwrap()
.get(&client_id)
{
non_blocking_client_sender
.buffer_tx
.try_send(msg)
.with_context(|| format!("failed to buffer message for client {client_id}"))?;
}
Ok(())
}
fn new_client(
&mut self,
client_id: ClientId,
stream: LocalSocketStream,
) -> Result<IpcReceiverWithContext<ClientToServerMsg>> {
let ipc_receiver = IpcReceiverWithContext::new(stream);
let non_blocking_client_sender = NonBlockingClientSender::new(ipc_receiver.get_sender());
self.non_blocking_client_senders
.lock()
.unwrap()
.insert(client_id, non_blocking_client_sender);
Ok(ipc_receiver)
}
fn new_client_with_reply(
&mut self,
_client_id: ClientId,
_stream: LocalSocketStream,
_reply_stream: LocalSocketStream,
) -> Result<IpcReceiverWithContext<ClientToServerMsg>> {
unimplemented!("windows dual-pipe IPC is not used by the test harness")
}
fn remove_client(&mut self, client_id: ClientId) -> Result<()> {
self.non_blocking_client_senders
.lock()
.unwrap()
.remove(&client_id);
Ok(())
}
fn load_palette(&self) -> Palette {
default_palette()
}
fn get_cwd(&self, _pid: u32) -> Option<PathBuf> {
None
}
fn write_to_file(&mut self, buf: String, file: Option<String>) -> Result<()> {
if let Some(file) = file {
self.fake_filesystem.lock().unwrap().insert(file, buf);
}
Ok(())
}
fn re_run_command_in_terminal(
&self,
terminal_id: u32,
_run_command: RunCommand,
quit_cb: Box<dyn Fn(PaneId, Option<i32>, RunCommand) + Send>,
) -> Result<(Box<dyn AsyncReader>, Option<u32>)> {
let fake_async_reader = self.shared_ptys.rerun(terminal_id, quit_cb);
Ok((fake_async_reader, Some(FAKE_PID_BASE + terminal_id)))
}
fn clear_terminal_id(&self, terminal_id: u32) -> Result<()> {
self.shared_ptys.remove(terminal_id);
Ok(())
}
}
|
