1 #include <node_api.h>
2 #include <assert.h>
3 #include "../../js-native-api/common.h"
4
5 #define MAX_ARGUMENTS 10
6
MakeCallback(napi_env env,napi_callback_info info)7 static napi_value MakeCallback(napi_env env, napi_callback_info info) {
8 size_t argc = MAX_ARGUMENTS;
9 size_t n;
10 napi_value args[MAX_ARGUMENTS];
11 // NOLINTNEXTLINE (readability/null_usage)
12 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
13
14 NAPI_ASSERT(env, argc > 0, "Wrong number of arguments");
15
16 napi_value recv = args[0];
17 napi_value func = args[1];
18
19 napi_value argv[MAX_ARGUMENTS - 2];
20 for (n = 2; n < argc; n += 1) {
21 argv[n - 2] = args[n];
22 }
23
24 napi_valuetype func_type;
25
26 NAPI_CALL(env, napi_typeof(env, func, &func_type));
27
28 napi_value resource_name;
29 NAPI_CALL(env, napi_create_string_utf8(
30 env, "test", NAPI_AUTO_LENGTH, &resource_name));
31
32 napi_async_context context;
33 NAPI_CALL(env, napi_async_init(env, func, resource_name, &context));
34
35 napi_value result;
36 if (func_type == napi_function) {
37 NAPI_CALL(env, napi_make_callback(
38 env, context, recv, func, argc - 2, argv, &result));
39 } else {
40 NAPI_ASSERT(env, false, "Unexpected argument type");
41 }
42
43 NAPI_CALL(env, napi_async_destroy(env, context));
44
45 return result;
46 }
47
AsyncDestroyCb(napi_env env,void * data,void * hint)48 static void AsyncDestroyCb(napi_env env, void* data, void* hint) {
49 napi_status status = napi_async_destroy(env, (napi_async_context)data);
50 // We cannot use NAPI_ASSERT_RETURN_VOID because we need to have a JS stack
51 // below in order to use exceptions.
52 assert(status == napi_ok);
53 }
54
CreateAsyncResource(napi_env env,napi_callback_info info)55 static napi_value CreateAsyncResource(napi_env env, napi_callback_info info) {
56 napi_value object;
57 NAPI_CALL(env, napi_create_object(env, &object));
58
59 napi_value resource_name;
60 NAPI_CALL(env, napi_create_string_utf8(
61 env, "test_gcable", NAPI_AUTO_LENGTH, &resource_name));
62
63 napi_async_context context;
64 NAPI_CALL(env, napi_async_init(env, object, resource_name, &context));
65
66 NAPI_CALL(env, napi_add_finalizer(
67 env, object, (void*)context, AsyncDestroyCb, NULL, NULL));
68
69 return object;
70 }
71
72 static
Init(napi_env env,napi_value exports)73 napi_value Init(napi_env env, napi_value exports) {
74 napi_value fn;
75 NAPI_CALL(env, napi_create_function(
76 // NOLINTNEXTLINE (readability/null_usage)
77 env, NULL, NAPI_AUTO_LENGTH, MakeCallback, NULL, &fn));
78 NAPI_CALL(env, napi_set_named_property(env, exports, "makeCallback", fn));
79 NAPI_CALL(env, napi_create_function(
80 // NOLINTNEXTLINE (readability/null_usage)
81 env, NULL, NAPI_AUTO_LENGTH, CreateAsyncResource, NULL, &fn));
82 NAPI_CALL(env, napi_set_named_property(
83 env, exports, "createAsyncResource", fn));
84 return exports;
85 }
86
87 NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
88