fix(napi): memory issues in create_external_buffer

bench/src/buffer.rs

@@ -0,0 +1,16 @@
+use napi::{ContextlessResult, Env, JsBuffer, JsObject, Result};
+
+#[contextless_function]
+pub fn bench_create_buffer(env: Env) -> ContextlessResult<JsBuffer> {
+  let mut output = Vec::with_capacity(100000);
+  output.push(1);
+  output.push(2);
+  env
+    .create_buffer_with_data(output)
+    .map(|v| Some(v.into_raw()))
+}
+
+pub fn register_js(exports: &mut JsObject) -> Result<()> {
+  exports.create_named_method("benchCreateBuffer", bench_create_buffer)?;
+  Ok(())
+}

bench/src/lib.rs

@@ -3,7 +3,16 @@ extern crate napi_derive;
 
 use napi::{JsObject, Result};
 
+#[cfg(all(unix, not(target_env = "musl"), not(target_arch = "aarch64")))]
+#[global_allocator]
+static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
+
+#[cfg(windows)]
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 mod async_compute;
+mod buffer;
 mod noop;
 mod plus;
 
@@ -12,6 +21,7 @@ fn init(mut exports: JsObject) -> Result<()> {
   exports.create_named_method("noop", noop::noop)?;
 
   async_compute::register_js(&mut exports)?;
+  buffer::register_js(&mut exports)?;
   plus::register_js(&mut exports)?;
 
   Ok(())