napi_set_instance_data

napi_status napi_set_instance_data(node_api_basic_env env,
                                   void* data,
                                   napi_finalize finalize_cb,
                                   void* finalize_hint); 拷贝

• [in] env：调用 Node-API 调用的环境。

  ¥[in] env: The environment that the Node-API call is invoked under.

• [in] data：可用于此实例的绑定的数据项。

  ¥[in] data: The data item to make available to bindings of this instance.

• [in] finalize_cb：拆除环境时调用的函数。该函数接收 data 以便释放它。napi_finalize 提供了更多详细信息。

  ¥[in] finalize_cb: The function to call when the environment is being torn down. The function receives data so that it might free it. napi_finalize provides more details.

• [in] finalize_hint：在收集期间传递给最终回调的可选提示。

  ¥[in] finalize_hint: Optional hint to pass to the finalize callback during collection.

如果 API 成功，则返回 napi_ok。

¥Returns napi_ok if the API succeeded.

此 API 将 data 与当前运行的 Node.js 环境相关联。稍后可以使用 napi_get_instance_data() 检索 data。通过先前调用 napi_set_instance_data() 设置的与当前运行的 Node.js 环境关联的任何现有数据都将被覆盖。如果之前调用提供了 finalize_cb，则不会调用它。

¥This API associates data with the currently running Node.js environment. data can later be retrieved using napi_get_instance_data(). Any existing data associated with the currently running Node.js environment which was set by means of a previous call to napi_set_instance_data() will be overwritten. If a finalize_cb was provided by the previous call, it will not be called.