1 /*
2 * Copyright (c) 2025 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <string>
17 #include "napi/native_api.h"
18
loadModule(napi_env env,napi_callback_info info)19 static napi_value loadModule(napi_env env, napi_callback_info info)
20 {
21 // 1. 使用napi_load_module_with_info加载模块@ohos.hilog
22 napi_value result;
23 napi_status status = napi_load_module_with_info(env, "@ohos.hilog", nullptr, &result);
24
25 // 2. 使用napi_get_named_property获取info函数
26 napi_value infoFn;
27 napi_get_named_property(env, result, "info", &infoFn);
28
29 napi_value tag;
30 std::string formatStr = "test";
31 napi_create_string_utf8(env, formatStr.c_str(), formatStr.size(), &tag);
32
33 napi_value outputString;
34 std::string str = "Hello OpenHarmony";
35 napi_create_string_utf8(env, str.c_str(), str.size(), &outputString);
36
37 napi_value flag;
38 napi_create_int32(env, 0, &flag);
39
40 napi_value args[3] = {flag, tag, outputString};
41 // 3. 使用napi_call_function调用info函数
42 napi_call_function(env, result, infoFn, 3, args, nullptr);
43 return result;
44 }
45
46 EXTERN_C_START
Init(napi_env env,napi_value exports)47 static napi_value Init(napi_env env, napi_value exports)
48 {
49 napi_property_descriptor desc[] = {
50 {"loadModule", nullptr, loadModule, nullptr, nullptr, nullptr, napi_default, nullptr}};
51 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
52 return exports;
53 }
54 EXTERN_C_END
55
56 static napi_module demoModule = {
57 .nm_version = 1,
58 .nm_flags = 0,
59 .nm_filename = nullptr,
60 .nm_register_func = Init,
61 .nm_modname = "entrythree",
62 .nm_priv = ((void *)0),
63 .reserved = {0},
64 };
65
RegisterEntryModule(void)66 extern "C" __attribute__((constructor)) void RegisterEntryModule(void) { napi_module_register(&demoModule); }
67