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9a46a824bd
Adds `buffers` to the `Deno.jupyter.broadcast` API to send binary data via comms. This affords the ability to send binary data via websockets to the jupyter widget frontend.
85 lines
2.1 KiB
Rust
85 lines
2.1 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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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 crate::tools::jupyter::jupyter_msg::Connection;
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use crate::tools::jupyter::jupyter_msg::JupyterMessage;
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use crate::tools::jupyter::server::StdioMsg;
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use deno_core::error::AnyError;
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use deno_core::op2;
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use deno_core::serde_json;
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use deno_core::Op;
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use deno_core::OpState;
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use tokio::sync::mpsc;
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use tokio::sync::Mutex;
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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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],
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options = {
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sender: mpsc::UnboundedSender<StdioMsg>,
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},
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middleware = |op| match op.name {
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"op_print" => op_print::DECL,
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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(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_socket, last_execution_request) = {
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let s = state.borrow();
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(
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s.borrow::<Arc<Mutex<Connection<zeromq::PubSocket>>>>()
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.clone(),
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s.borrow::<Rc<RefCell<Option<JupyterMessage>>>>().clone(),
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)
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};
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let maybe_last_request = last_execution_request.borrow().clone();
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if let Some(last_request) = maybe_last_request {
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last_request
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.new_message(&message_type)
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.with_content(content)
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.with_metadata(metadata)
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.with_buffers(buffers.into_iter().map(|b| b.into()).collect())
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.send(&mut *iopub_socket.lock().await)
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.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<StdioMsg>>();
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if is_err {
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if let Err(err) = sender.send(StdioMsg::Stderr(msg.into())) {
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eprintln!("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(StdioMsg::Stdout(msg.into())) {
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eprintln!("Failed to send stdout message: {}", err);
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}
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Ok(())
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}
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