Thanks to visit codestin.com
Credit goes to github.com

Skip to content

feat(napi): allow user defined tokio runtime #2040

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Apr 15, 2024
Merged

feat(napi): allow user defined tokio runtime #2040

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
30 changes: 28 additions & 2 deletions crates/napi/src/tokio_runtime.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
use std::{future::Future, marker::PhantomData, sync::RwLock};

use once_cell::sync::Lazy;
use once_cell::sync::{Lazy, OnceCell};
use tokio::runtime::Runtime;

use crate::{sys, JsDeferred, JsUnknown, NapiValue, Result};
Expand All @@ -21,7 +21,33 @@ fn create_runtime() -> Option<Runtime> {
}
}

pub(crate) static RT: Lazy<RwLock<Option<Runtime>>> = Lazy::new(|| RwLock::new(create_runtime()));
pub(crate) static RT: Lazy<RwLock<Option<Runtime>>> = Lazy::new(|| {
if let Some(user_defined_rt) = unsafe { USER_DEFINED_RT.take() } {
RwLock::new(user_defined_rt)
} else {
RwLock::new(create_runtime())
}
});

static mut USER_DEFINED_RT: OnceCell<Option<Runtime>> = OnceCell::new();

/// Create a custom Tokio runtime used by the NAPI-RS.
/// You can control the tokio runtime configuration by yourself.
/// ### Example
/// ```no_run
/// use tokio::runtime::Builder;
/// use napi::create_custom_tokio_runtime;
///
/// #[napi::module_init]
/// fn init() {
/// let rt = Builder::new_multi_thread().enable_all().thread_stack_size(32 * 1024 * 1024).build().unwrap();
/// create_custom_tokio_runtime(rt);
/// }
pub fn create_custom_tokio_runtime(rt: Runtime) {
unsafe {
USER_DEFINED_RT.get_or_init(move || Some(rt));
}
}

#[cfg(not(any(target_os = "macos", target_family = "wasm")))]
static RT_REFERENCE_COUNT: std::sync::atomic::AtomicUsize = std::sync::atomic::AtomicUsize::new(0);
Expand Down
15 changes: 15 additions & 0 deletions examples/napi/src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@
#![allow(clippy::new_without_default)]
#![allow(deprecated)]

use napi::bindgen_prelude::create_custom_tokio_runtime;

#[macro_use]
extern crate napi_derive;
#[macro_use]
Expand All @@ -14,6 +16,19 @@ extern crate serde_derive;
#[global_allocator]
static ALLOC: snmalloc_rs::SnMalloc = snmalloc_rs::SnMalloc;

#[cfg(not(target_family = "wasm"))]
#[napi::module_init]
fn init() {
let rt = tokio::runtime::Builder::new_multi_thread()
.enable_all()
.on_thread_start(|| {
println!("tokio thread started");
})
.build()
.unwrap();
create_custom_tokio_runtime(rt);
}

#[napi]
/// This is a const
pub const DEFAULT_COST: u32 = 12;
Expand Down