1 /*
2 * Copyright (c) 2023 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 "napi/native_api.h"
17 #include <cerrno>
18 #include <err.h>
19 #include <fcntl.h>
20 #include <unistd.h>
21
22 #define ERRON_0 0
23 #define PARAM_0777 0777
24
Warn(napi_env env, napi_callback_info info)25 static napi_value Warn(napi_env env, napi_callback_info info)
26 {
27 errno = ERRON_0;
28 int fd = open("/data/storage/el2/Fzl.txt", O_CREAT, PARAM_0777);
29 warn("error happen");
30 napi_value result = nullptr;
31 napi_create_int32(env, errno, &result);
32 close(fd);
33 return result;
34 }
35
Warnx(napi_env env, napi_callback_info info)36 static napi_value Warnx(napi_env env, napi_callback_info info)
37 {
38 errno = ERRON_0;
39 int fd = open("/data/storage/el2/Fzl.txt", O_CREAT, PARAM_0777);
40 warnx("error happen");
41 napi_value result = nullptr;
42 napi_create_int32(env, errno, &result);
43 close(fd);
44 return result;
45 }
46
47 EXTERN_C_START
Init(napi_env env, napi_value exports)48 static napi_value Init(napi_env env, napi_value exports)
49 {
50 napi_property_descriptor desc[] = {
51 {"warn", nullptr, Warn, nullptr, nullptr, nullptr, napi_default, nullptr},
52 {"warnx", nullptr, Warnx, nullptr, nullptr, nullptr, napi_default, nullptr},
53 };
54 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
55 return exports;
56 }
57
58 EXTERN_C_END
59
60 static napi_module demoModule = {
61 .nm_version = 1,
62 .nm_flags = 0,
63 .nm_filename = nullptr,
64 .nm_register_func = Init,
65 .nm_modname = "err",
66 .nm_priv = ((void *)0),
67 .reserved = {0},
68 };
69
RegisterEntryModule(void)70 extern "C" __attribute__((constructor)) void RegisterEntryModule(void) { napi_module_register(&demoModule); }