1#include <node_api.h>
2#include <assert.h>
3#include "../../js-native-api/common.h"
4
5#define MAX_ARGUMENTS 10
6#define RESERVED_ARGS 3
7
8static napi_value MakeCallback(napi_env env, napi_callback_info info) {
9  size_t argc = MAX_ARGUMENTS;
10  size_t n;
11  napi_value args[MAX_ARGUMENTS];
12  // NOLINTNEXTLINE (readability/null_usage)
13  NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
14
15  NODE_API_ASSERT(env, argc > 0, "Wrong number of arguments");
16
17  napi_value async_context_wrap = args[0];
18  napi_value recv = args[1];
19  napi_value func = args[2];
20
21  napi_value argv[MAX_ARGUMENTS - RESERVED_ARGS];
22  for (n = RESERVED_ARGS; n < argc; n += 1) {
23    argv[n - RESERVED_ARGS] = args[n];
24  }
25
26  napi_valuetype func_type;
27  NODE_API_CALL(env, napi_typeof(env, func, &func_type));
28
29  napi_async_context context;
30  NODE_API_CALL(env, napi_unwrap(env, async_context_wrap, (void**)&context));
31
32  napi_value result;
33  if (func_type == napi_function) {
34    NODE_API_CALL(env, napi_make_callback(
35        env, context, recv, func, argc - RESERVED_ARGS, argv, &result));
36  } else {
37    NODE_API_ASSERT(env, false, "Unexpected argument type");
38  }
39
40  return result;
41}
42
43static void AsyncDestroyCb(napi_env env, void* data, void* hint) {
44  napi_status status = napi_async_destroy(env, (napi_async_context)data);
45  // We cannot use NODE_API_ASSERT_RETURN_VOID because we need to have a JS
46  // stack below in order to use exceptions.
47  assert(status == napi_ok);
48}
49
50#define CREATE_ASYNC_RESOURCE_ARGC 2
51
52static napi_value CreateAsyncResource(napi_env env, napi_callback_info info) {
53  napi_value async_context_wrap;
54  NODE_API_CALL(env, napi_create_object(env, &async_context_wrap));
55
56  size_t argc = CREATE_ASYNC_RESOURCE_ARGC;
57  napi_value args[CREATE_ASYNC_RESOURCE_ARGC];
58  // NOLINTNEXTLINE (readability/null_usage)
59  NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
60
61  napi_value resource = args[0];
62  napi_value js_destroy_on_finalizer = args[1];
63  napi_valuetype resource_type;
64  NODE_API_CALL(env, napi_typeof(env, resource, &resource_type));
65  if (resource_type != napi_object) {
66    resource = NULL;
67  }
68
69  napi_value resource_name;
70  NODE_API_CALL(env, napi_create_string_utf8(
71      env, "test_async", NAPI_AUTO_LENGTH, &resource_name));
72
73  napi_async_context context;
74  NODE_API_CALL(env, napi_async_init(env, resource, resource_name, &context));
75
76  bool destroy_on_finalizer = true;
77  if (argc == 2) {
78    NODE_API_CALL(env, napi_get_value_bool(env, js_destroy_on_finalizer, &destroy_on_finalizer));
79  }
80  if (resource_type == napi_object && destroy_on_finalizer) {
81    NODE_API_CALL(env, napi_add_finalizer(
82        env, resource, (void*)context, AsyncDestroyCb, NULL, NULL));
83  }
84  NODE_API_CALL(env, napi_wrap(env, async_context_wrap, context, NULL, NULL, NULL));
85  return async_context_wrap;
86}
87
88#define DESTROY_ASYNC_RESOURCE_ARGC 1
89
90static napi_value DestroyAsyncResource(napi_env env, napi_callback_info info) {
91  size_t argc = DESTROY_ASYNC_RESOURCE_ARGC;
92  napi_value args[DESTROY_ASYNC_RESOURCE_ARGC];
93  // NOLINTNEXTLINE (readability/null_usage)
94  NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
95  NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
96
97  napi_value async_context_wrap = args[0];
98
99  napi_async_context async_context;
100  NODE_API_CALL(env,
101            napi_remove_wrap(env, async_context_wrap, (void**)&async_context));
102  NODE_API_CALL(env, napi_async_destroy(env, async_context));
103
104  return async_context_wrap;
105}
106
107static
108napi_value Init(napi_env env, napi_value exports) {
109  napi_value fn;
110  NODE_API_CALL(env, napi_create_function(
111      // NOLINTNEXTLINE (readability/null_usage)
112      env, NULL, NAPI_AUTO_LENGTH, MakeCallback, NULL, &fn));
113  NODE_API_CALL(env, napi_set_named_property(env, exports, "makeCallback", fn));
114  NODE_API_CALL(env, napi_create_function(
115      // NOLINTNEXTLINE (readability/null_usage)
116      env, NULL, NAPI_AUTO_LENGTH, CreateAsyncResource, NULL, &fn));
117  NODE_API_CALL(env, napi_set_named_property(
118      env, exports, "createAsyncResource", fn));
119
120  NODE_API_CALL(env, napi_create_function(
121      // NOLINTNEXTLINE (readability/null_usage)
122      env, NULL, NAPI_AUTO_LENGTH, DestroyAsyncResource, NULL, &fn));
123  NODE_API_CALL(env, napi_set_named_property(
124      env, exports, "destroyAsyncResource", fn));
125
126  return exports;
127}
128
129NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
130