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https://github.com/denoland/deno.git
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54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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use super::dispatch_json::{JsonOp, Value};
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use crate::deno_error::DenoError;
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use crate::deno_error::ErrorKind;
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use crate::ops::json_op;
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use crate::state::ThreadSafeState;
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use deno_core::*;
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use futures;
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use futures::future::FutureExt;
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use std;
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use std::convert::From;
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pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
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i.register_op(
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"worker_post_message",
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s.core_op(json_op(s.stateful_op(op_worker_post_message))),
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);
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i.register_op(
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"worker_get_message",
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s.core_op(json_op(s.stateful_op(op_worker_get_message))),
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);
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}
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/// Get message from host as guest worker
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fn op_worker_get_message(
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state: &ThreadSafeState,
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_args: Value,
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_data: Option<ZeroCopyBuf>,
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) -> Result<JsonOp, ErrBox> {
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let state_ = state.clone();
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let op = async move {
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let c = state_.worker_channels_internal.lock().unwrap();
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let maybe_buf = c.as_ref().unwrap().get_message().await;
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debug!("op_worker_get_message");
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Ok(json!({ "data": maybe_buf }))
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};
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Ok(JsonOp::Async(op.boxed_local()))
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}
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/// Post message to host as guest worker
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fn op_worker_post_message(
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state: &ThreadSafeState,
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_args: Value,
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data: Option<ZeroCopyBuf>,
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) -> Result<JsonOp, ErrBox> {
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let d = Vec::from(data.unwrap().as_ref()).into_boxed_slice();
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let c = state.worker_channels_internal.lock().unwrap();
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let fut = c.as_ref().unwrap().post_message(d);
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futures::executor::block_on(fut)
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.map_err(|e| DenoError::new(ErrorKind::Other, e.to_string()))?;
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Ok(JsonOp::Sync(json!({})))
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}
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