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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_runtime::deno_napi::*;
#[repr(C)]pub struct AsyncWork {  pub data: *mut c_void,  pub execute: napi_async_execute_callback,  pub complete: napi_async_complete_callback,}
#[napi_sym::napi_sym]fn napi_create_async_work(  _env: *mut Env,  _async_resource: napi_value,  _async_resource_name: napi_value,  execute: napi_async_execute_callback,  complete: napi_async_complete_callback,  data: *mut c_void,  result: *mut napi_async_work,) -> Result {  let mut work = AsyncWork {    data,    execute,    complete,  };  *result = transmute::<Box<AsyncWork>, _>(Box::new(work));  Ok(())}
#[napi_sym::napi_sym]fn napi_cancel_async_work(  _env: &mut Env,  _async_work: napi_async_work,) -> Result {  Ok(())}
/// Frees a previously allocated work object.#[napi_sym::napi_sym]fn napi_delete_async_work(_env: &mut Env, work: napi_async_work) -> Result {  let work = Box::from_raw(work);  drop(work);
  Ok(())}
#[napi_sym::napi_sym]fn napi_queue_async_work(env_ptr: *mut Env, work: napi_async_work) -> Result {  let work: &AsyncWork = &*(work as *const AsyncWork);  let env: &mut Env = env_ptr.as_mut().ok_or(Error::InvalidArg)?;
  let fut = Box::new(move || {    (work.execute)(env_ptr as napi_env, work.data);    // Note: Must be called from the loop thread.    (work.complete)(env_ptr as napi_env, napi_ok, work.data);  });  env.add_async_work(fut);
  Ok(())}
// TODO: Custom async operations.
#[napi_sym::napi_sym]fn napi_async_init(  _env: *mut Env,  _async_resource: napi_value,  _async_resource_name: napi_value,  _result: *mut *mut (),) -> Result {  todo!()}
#[napi_sym::napi_sym]fn napi_async_destroy(_env: *mut Env, _async_context: *mut ()) -> Result {  todo!()}