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// Copyright 2018-2023 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 as *mut AsyncWork);
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!()
}
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