napi_unref_threadsafe_function
NAPI_EXTERN napi_status
napi_unref_threadsafe_function(node_api_basic_env env, napi_threadsafe_function func); [in] env:调用该 API 时所处的环境。[in] func:线程安全的取消引用函数。
此 API 用于指示在主线程上运行的事件循环可能在 func 被销毁之前退出。与 uv_unref 类似,它也是幂等的。
【This API is used to indicate that the event loop running on the main thread
may exit before func is destroyed. Similar to uv_unref it is also
idempotent.】
此 API 只能从主线程调用。
【This API may only be called from the main thread.】