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63f8218a7d
Closes #24737, #24437.
160 lines
4 KiB
Rust
160 lines
4 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// NOTE(bartlomieju): unfortunately it appears that clippy is broken
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// and can't allow a single line ignore for `await_holding_lock`.
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#![allow(clippy::await_holding_lock)]
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use std::cell::RefCell;
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use std::rc::Rc;
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use std::sync::Arc;
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use jupyter_runtime::InputRequest;
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use jupyter_runtime::JupyterMessage;
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use jupyter_runtime::JupyterMessageContent;
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use jupyter_runtime::KernelIoPubConnection;
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use jupyter_runtime::StreamContent;
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use deno_core::error::AnyError;
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use deno_core::op2;
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use deno_core::parking_lot::Mutex;
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use deno_core::serde_json;
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use deno_core::OpState;
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use tokio::sync::mpsc;
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use crate::tools::jupyter::server::StdinConnectionProxy;
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deno_core::extension!(deno_jupyter,
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ops = [
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op_jupyter_broadcast,
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op_jupyter_input,
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],
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options = {
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sender: mpsc::UnboundedSender<StreamContent>,
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},
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middleware = |op| match op.name {
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"op_print" => op_print(),
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_ => op,
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},
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state = |state, options| {
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state.put(options.sender);
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},
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);
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#[op2]
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#[string]
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pub fn op_jupyter_input(
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state: &mut OpState,
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#[string] prompt: String,
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is_password: bool,
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) -> Result<Option<String>, AnyError> {
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let (last_execution_request, stdin_connection_proxy) = {
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(
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state.borrow::<Arc<Mutex<Option<JupyterMessage>>>>().clone(),
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state.borrow::<Arc<Mutex<StdinConnectionProxy>>>().clone(),
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)
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};
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let maybe_last_request = last_execution_request.lock().clone();
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if let Some(last_request) = maybe_last_request {
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let JupyterMessageContent::ExecuteRequest(msg) = &last_request.content
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else {
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return Ok(None);
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};
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if !msg.allow_stdin {
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return Ok(None);
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}
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let content = InputRequest {
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prompt,
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password: is_password,
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};
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let msg = JupyterMessage::new(content, Some(&last_request));
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let Ok(()) = stdin_connection_proxy.lock().tx.send(msg) else {
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return Ok(None);
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};
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// Need to spawn a separate thread here, because `blocking_recv()` can't
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// be used from the Tokio runtime context.
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let join_handle = std::thread::spawn(move || {
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stdin_connection_proxy.lock().rx.blocking_recv()
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});
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let Ok(Some(response)) = join_handle.join() else {
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return Ok(None);
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};
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let JupyterMessageContent::InputReply(msg) = response.content else {
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return Ok(None);
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};
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return Ok(Some(msg.value));
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}
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Ok(None)
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}
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#[op2(async)]
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pub async fn op_jupyter_broadcast(
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state: Rc<RefCell<OpState>>,
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#[string] message_type: String,
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#[serde] content: serde_json::Value,
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#[serde] metadata: serde_json::Value,
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#[serde] buffers: Vec<deno_core::JsBuffer>,
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) -> Result<(), AnyError> {
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let (iopub_connection, last_execution_request) = {
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let s = state.borrow();
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(
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s.borrow::<Arc<Mutex<KernelIoPubConnection>>>().clone(),
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s.borrow::<Arc<Mutex<Option<JupyterMessage>>>>().clone(),
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)
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};
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let maybe_last_request = last_execution_request.lock().clone();
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if let Some(last_request) = maybe_last_request {
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let content = JupyterMessageContent::from_type_and_content(
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&message_type,
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content.clone(),
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)
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.map_err(|err| {
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log::error!(
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"Error deserializing content from jupyter.broadcast, message_type: {}:\n\n{}\n\n{}",
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&message_type,
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content,
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err
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);
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err
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})?;
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let jupyter_message = JupyterMessage::new(content, Some(&last_request))
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.with_metadata(metadata)
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.with_buffers(buffers.into_iter().map(|b| b.to_vec().into()).collect());
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iopub_connection.lock().send(jupyter_message).await?;
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}
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Ok(())
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}
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#[op2(fast)]
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pub fn op_print(
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state: &mut OpState,
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#[string] msg: &str,
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is_err: bool,
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) -> Result<(), AnyError> {
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let sender = state.borrow_mut::<mpsc::UnboundedSender<StreamContent>>();
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if is_err {
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if let Err(err) = sender.send(StreamContent::stderr(msg)) {
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log::error!("Failed to send stderr message: {}", err);
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}
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return Ok(());
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}
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if let Err(err) = sender.send(StreamContent::stdout(msg)) {
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log::error!("Failed to send stdout message: {}", err);
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}
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Ok(())
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}
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