From bbd4ae1bc12dc6b34d4a455015096b7113a5cec5 Mon Sep 17 00:00:00 2001
From: Nathan Whitaker <17734409+nathanwhit@users.noreply.github.com>
Date: Wed, 2 Oct 2024 10:43:42 -0700
Subject: fix(node): implement libuv APIs needed to support `npm:sqlite3`
 (#25893)

Fixes #24740.

Implements the `uv_mutex_*` and `uv_async_*` APIs.

The mutex API is implemented exactly as libuv, a thin wrapper over the
OS's native mutex.

The async API is implemented in terms of napi_async_work. As documented
in the napi docs, you really shouldn't call `napi_queue_async_work`
multiple times (it is documented as undefined behavior). However, our
implementation doesn't have any issue with this, so I believe it suits
our purpose here.
---
 cli/napi/node_api.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'cli/napi/node_api.rs')

diff --git a/cli/napi/node_api.rs b/cli/napi/node_api.rs
index 81cb800a7..2efb71c26 100644
--- a/cli/napi/node_api.rs
+++ b/cli/napi/node_api.rs
@@ -547,11 +547,16 @@ fn napi_delete_async_work(env: *mut Env, work: napi_async_work) -> napi_status {
 }
 
 #[napi_sym]
-fn napi_get_uv_event_loop(env: *mut Env, uv_loop: *mut *mut ()) -> napi_status {
-  let env = check_env!(env);
+fn napi_get_uv_event_loop(
+  env_ptr: *mut Env,
+  uv_loop: *mut *mut (),
+) -> napi_status {
+  let env = check_env!(env_ptr);
   check_arg!(env, uv_loop);
-  // There is no uv_loop in Deno
-  napi_set_last_error(env, napi_generic_failure)
+  unsafe {
+    *uv_loop = env_ptr.cast();
+  }
+  0
 }
 
 #[napi_sym]
-- 
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