1#include <node_api.h>
2#include <stdlib.h>
3#include <string.h>
4#include "../../js-native-api/common.h"
5
6static const char theText[] =
7    "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
8
9static void malignDeleter(napi_env env, void* data, void* finalize_hint) {
10  NODE_API_ASSERT_RETURN_VOID(
11      env, data != NULL && strcmp(data, theText) == 0, "invalid data");
12  napi_ref finalizer_ref = (napi_ref)finalize_hint;
13  napi_value js_finalizer;
14  napi_value recv;
15  NODE_API_CALL_RETURN_VOID(
16      env, napi_get_reference_value(env, finalizer_ref, &js_finalizer));
17  NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
18  NODE_API_CALL_RETURN_VOID(
19      env, napi_call_function(env, recv, js_finalizer, 0, NULL, NULL));
20  NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, finalizer_ref));
21}
22
23static napi_value malignFinalizerBuffer(napi_env env, napi_callback_info info) {
24  size_t argc = 1;
25  napi_value args[1];
26  NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
27  NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
28  napi_value finalizer = args[0];
29  napi_valuetype finalizer_valuetype;
30  NODE_API_CALL(env, napi_typeof(env, finalizer, &finalizer_valuetype));
31  NODE_API_ASSERT(env,
32                  finalizer_valuetype == napi_function,
33                  "Wrong type of first argument");
34  napi_ref finalizer_ref;
35  NODE_API_CALL(env, napi_create_reference(env, finalizer, 1, &finalizer_ref));
36
37  napi_value theBuffer;
38  NODE_API_CALL(env,
39                napi_create_external_buffer(env,
40                                            sizeof(theText),
41                                            (void*)theText,
42                                            malignDeleter,
43                                            finalizer_ref,  // finalize_hint
44                                            &theBuffer));
45  return theBuffer;
46}
47
48static napi_value Init(napi_env env, napi_value exports) {
49  napi_property_descriptor methods[] = {
50      DECLARE_NODE_API_PROPERTY("malignFinalizerBuffer", malignFinalizerBuffer),
51  };
52
53  NODE_API_CALL(
54      env,
55      napi_define_properties(
56          env, exports, sizeof(methods) / sizeof(methods[0]), methods));
57
58  return exports;
59}
60
61NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
62