mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 07:14:47 -05:00
ed680552a2
Removes OP_HOST_GET_WORKER_LOADED, OP_HOST_POLL_WORKER, OP_HOST_RESUME_WORKER and ready/messageBuffer in cli/js/workers.ts.
234 lines
6.6 KiB
Rust
234 lines
6.6 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
|
|
use super::dispatch_json::{Deserialize, JsonOp, Value};
|
|
use crate::deno_error::bad_resource;
|
|
use crate::deno_error::js_check;
|
|
use crate::deno_error::DenoError;
|
|
use crate::deno_error::ErrorKind;
|
|
use crate::ops::dispatch_json::JsonResult;
|
|
use crate::ops::json_op;
|
|
use crate::startup_data;
|
|
use crate::state::ThreadSafeState;
|
|
use crate::web_worker::WebWorker;
|
|
use deno_core::*;
|
|
use futures;
|
|
use futures::future::FutureExt;
|
|
use futures::future::TryFutureExt;
|
|
use std;
|
|
use std::convert::From;
|
|
use std::sync::atomic::Ordering;
|
|
|
|
pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
|
|
i.register_op(
|
|
"create_worker",
|
|
s.core_op(json_op(s.stateful_op(op_create_worker))),
|
|
);
|
|
i.register_op(
|
|
"host_close_worker",
|
|
s.core_op(json_op(s.stateful_op(op_host_close_worker))),
|
|
);
|
|
i.register_op(
|
|
"host_post_message",
|
|
s.core_op(json_op(s.stateful_op(op_host_post_message))),
|
|
);
|
|
i.register_op(
|
|
"host_get_message",
|
|
s.core_op(json_op(s.stateful_op(op_host_get_message))),
|
|
);
|
|
i.register_op("metrics", s.core_op(json_op(s.stateful_op(op_metrics))));
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
#[serde(rename_all = "camelCase")]
|
|
struct CreateWorkerArgs {
|
|
name: Option<String>,
|
|
specifier: String,
|
|
has_source_code: bool,
|
|
source_code: String,
|
|
}
|
|
|
|
/// Create worker as the host
|
|
fn op_create_worker(
|
|
state: &ThreadSafeState,
|
|
args: Value,
|
|
_data: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, ErrBox> {
|
|
let args: CreateWorkerArgs = serde_json::from_value(args)?;
|
|
|
|
let specifier = args.specifier.clone();
|
|
let has_source_code = args.has_source_code;
|
|
let source_code = args.source_code.clone();
|
|
let args_name = args.name;
|
|
let parent_state = state.clone();
|
|
|
|
let (load_sender, load_receiver) =
|
|
std::sync::mpsc::sync_channel::<JsonResult>(1);
|
|
|
|
std::thread::spawn(move || {
|
|
// TODO(bartlomieju): Isn't this wrong?
|
|
let result = ModuleSpecifier::resolve_url_or_path(&specifier);
|
|
if let Err(err) = result {
|
|
load_sender.send(Err(err.into())).unwrap();
|
|
return;
|
|
}
|
|
|
|
let module_specifier = if !has_source_code {
|
|
let referrer = parent_state.main_module.to_string();
|
|
let result = ModuleSpecifier::resolve_import(&specifier, &referrer);
|
|
if let Err(err) = result {
|
|
load_sender.send(Err(err.into())).unwrap();
|
|
return;
|
|
}
|
|
result.unwrap()
|
|
} else {
|
|
result.unwrap()
|
|
};
|
|
|
|
let result = ThreadSafeState::new_for_worker(
|
|
parent_state.global_state.clone(),
|
|
Some(parent_state.permissions.clone()), // by default share with parent
|
|
module_specifier.clone(),
|
|
);
|
|
if let Err(err) = result {
|
|
load_sender.send(Err(err)).unwrap();
|
|
return;
|
|
}
|
|
let child_state = result.unwrap();
|
|
let worker_name = args_name.unwrap_or_else(|| {
|
|
// TODO(bartlomieju): change it to something more descriptive
|
|
format!("USER-WORKER-{}", specifier)
|
|
});
|
|
|
|
// TODO: add a new option to make child worker not sharing permissions
|
|
// with parent (aka .clone(), requests from child won't reflect in parent)
|
|
let mut worker = WebWorker::new(
|
|
worker_name.to_string(),
|
|
startup_data::deno_isolate_init(),
|
|
child_state,
|
|
);
|
|
let script = format!("bootstrapWorkerRuntime(\"{}\")", worker_name);
|
|
js_check(worker.execute(&script));
|
|
js_check(worker.execute("runWorkerMessageLoop()"));
|
|
|
|
let worker_id = parent_state.add_child_worker(&worker);
|
|
|
|
// Has provided source code, execute immediately.
|
|
if has_source_code {
|
|
js_check(worker.execute(&source_code));
|
|
load_sender.send(Ok(json!({ "id": worker_id }))).unwrap();
|
|
return;
|
|
}
|
|
|
|
let fut = async move {
|
|
let r = worker
|
|
.execute_mod_async(&module_specifier, None, false)
|
|
.await;
|
|
if r.is_ok() {
|
|
let _ = (&mut *worker).await;
|
|
}
|
|
}
|
|
.boxed_local();
|
|
|
|
load_sender.send(Ok(json!({ "id": worker_id }))).unwrap();
|
|
|
|
crate::tokio_util::run_basic(fut);
|
|
});
|
|
|
|
let r = load_receiver.recv().unwrap();
|
|
|
|
Ok(JsonOp::Sync(r.unwrap()))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct WorkerArgs {
|
|
id: i32,
|
|
}
|
|
|
|
fn op_host_close_worker(
|
|
state: &ThreadSafeState,
|
|
args: Value,
|
|
_data: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, ErrBox> {
|
|
let args: WorkerArgs = serde_json::from_value(args)?;
|
|
let id = args.id as u32;
|
|
let state_ = state.clone();
|
|
|
|
let mut workers_table = state_.workers.lock().unwrap();
|
|
let maybe_worker_handle = workers_table.remove(&id);
|
|
if let Some(worker_handle) = maybe_worker_handle {
|
|
let mut sender = worker_handle.sender.clone();
|
|
sender.close_channel();
|
|
|
|
let mut receiver =
|
|
futures::executor::block_on(worker_handle.receiver.lock());
|
|
receiver.close();
|
|
};
|
|
|
|
Ok(JsonOp::Sync(json!({})))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct HostGetMessageArgs {
|
|
id: i32,
|
|
}
|
|
|
|
/// Get message from guest worker as host
|
|
fn op_host_get_message(
|
|
state: &ThreadSafeState,
|
|
args: Value,
|
|
_data: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, ErrBox> {
|
|
let args: HostGetMessageArgs = serde_json::from_value(args)?;
|
|
let state_ = state.clone();
|
|
let id = args.id as u32;
|
|
let mut table = state_.workers.lock().unwrap();
|
|
// TODO: don't return bad resource anymore
|
|
let worker_handle = table.get_mut(&id).ok_or_else(bad_resource)?;
|
|
let fut = worker_handle.get_message();
|
|
let op = async move {
|
|
let maybe_buf = fut.await;
|
|
Ok(json!({ "data": maybe_buf }))
|
|
};
|
|
Ok(JsonOp::Async(op.boxed_local()))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct HostPostMessageArgs {
|
|
id: i32,
|
|
}
|
|
|
|
/// Post message to guest worker as host
|
|
fn op_host_post_message(
|
|
state: &ThreadSafeState,
|
|
args: Value,
|
|
data: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, ErrBox> {
|
|
let args: HostPostMessageArgs = serde_json::from_value(args)?;
|
|
let id = args.id as u32;
|
|
let msg = Vec::from(data.unwrap().as_ref()).into_boxed_slice();
|
|
|
|
debug!("post message to worker {}", id);
|
|
let mut table = state.workers.lock().unwrap();
|
|
// TODO: don't return bad resource anymore
|
|
let worker_handle = table.get_mut(&id).ok_or_else(bad_resource)?;
|
|
let fut = worker_handle
|
|
.post_message(msg)
|
|
.map_err(|e| DenoError::new(ErrorKind::Other, e.to_string()));
|
|
futures::executor::block_on(fut)?;
|
|
Ok(JsonOp::Sync(json!({})))
|
|
}
|
|
|
|
fn op_metrics(
|
|
state: &ThreadSafeState,
|
|
_args: Value,
|
|
_zero_copy: Option<ZeroCopyBuf>,
|
|
) -> Result<JsonOp, ErrBox> {
|
|
let m = &state.metrics;
|
|
|
|
Ok(JsonOp::Sync(json!({
|
|
"opsDispatched": m.ops_dispatched.load(Ordering::SeqCst) as u64,
|
|
"opsCompleted": m.ops_completed.load(Ordering::SeqCst) as u64,
|
|
"bytesSentControl": m.bytes_sent_control.load(Ordering::SeqCst) as u64,
|
|
"bytesSentData": m.bytes_sent_data.load(Ordering::SeqCst) as u64,
|
|
"bytesReceived": m.bytes_received.load(Ordering::SeqCst) as u64
|
|
})))
|
|
}
|