mirror of
https://github.com/denoland/deno.git
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88 lines
2.3 KiB
Rust
88 lines
2.3 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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#![allow(unused_mut)]
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#![allow(non_camel_case_types)]
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#![allow(clippy::undocumented_unsafe_blocks)]
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//! Symbols to be exported are now defined in this JSON file.
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//! The `#[napi_sym]` macro checks for missing entries and panics.
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//!
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//! `./tools/napi/generate_symbols_list.js` is used to generate the LINK `cli/exports.def` on Windows,
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//! which is also checked into git.
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//!
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//! To add a new napi function:
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//! 1. Place `#[napi_sym]` on top of your implementation.
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//! 2. Add the function's identifier to this JSON list.
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//! 3. Finally, run `tools/napi/generate_symbols_list.js` to update `cli/napi/generated_symbol_exports_list_*.def`.
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pub mod r#async;
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pub mod env;
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pub mod js_native_api;
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pub mod threadsafe_functions;
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pub mod util;
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use std::os::raw::c_int;
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use std::os::raw::c_void;
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pub type uv_async_t = *mut uv_async;
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pub type uv_loop_t = *mut c_void;
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pub type uv_async_cb = extern "C" fn(handle: uv_async_t);
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use deno_core::futures::channel::mpsc;
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#[repr(C)]
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pub struct uv_async {
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pub data: Option<*mut c_void>,
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callback: uv_async_cb,
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sender: Option<
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mpsc::UnboundedSender<deno_runtime::deno_napi::PendingNapiAsyncWork>,
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>,
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ref_sender: Option<
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mpsc::UnboundedSender<deno_runtime::deno_napi::ThreadSafeFunctionStatus>,
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>,
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}
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#[no_mangle]
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pub extern "C" fn uv_default_loop() -> uv_loop_t {
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std::ptr::null_mut()
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}
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/// # Safety
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/// libuv APIs
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#[no_mangle]
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pub unsafe extern "C" fn uv_async_init(
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_loop: uv_loop_t,
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async_: uv_async_t,
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cb: uv_async_cb,
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) -> c_int {
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(*async_).callback = cb;
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deno_runtime::deno_napi::ASYNC_WORK_SENDER.with(|sender| {
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(*async_).sender = Some(sender.borrow().clone().unwrap());
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});
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deno_runtime::deno_napi::THREAD_SAFE_FN_SENDER.with(|sender| {
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sender
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.borrow()
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.clone()
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.unwrap()
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.unbounded_send(deno_runtime::deno_napi::ThreadSafeFunctionStatus::Alive)
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.unwrap();
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(*async_).ref_sender = Some(sender.borrow().clone().unwrap());
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});
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0
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}
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/// # Safety
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/// libuv APIs
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#[no_mangle]
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pub unsafe extern "C" fn uv_async_send(async_: uv_async_t) -> c_int {
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let sender = (*async_).sender.as_ref().unwrap();
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let fut = Box::new(move || {
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((*async_).callback)(async_);
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});
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match sender.unbounded_send(fut) {
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Ok(_) => 0,
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Err(_) => 1,
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}
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}
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