1 /*
2 * Copyright (c) 2021 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 "fchmod.h"
17 #include <cstring>
18 #include <fcntl.h>
19 #include <sys/stat.h>
20 #include <tuple>
21 #include <unistd.h>
22
23 #include "../../common/napi/n_async/n_async_work_callback.h"
24 #include "../../common/napi/n_async/n_async_work_promise.h"
25 #include "../../common/napi/n_func_arg.h"
26 namespace OHOS {
27 namespace DistributedFS {
28 namespace ModuleFileIO {
29 using namespace std;
30
Sync(napi_env env,napi_callback_info info)31 napi_value Fchmod::Sync(napi_env env, napi_callback_info info)
32 {
33 NFuncArg funcArg(env, info);
34
35 if (!funcArg.InitArgs(NARG_CNT::TWO)) {
36 UniError(EINVAL).ThrowErr(env, "Number of arguments unmatched");
37 return nullptr;
38 }
39
40 bool succ = false;
41 int fd;
42 tie(succ, fd) = NVal(env, funcArg[NARG_POS::FIRST]).ToInt32();
43 if (!succ) {
44 UniError(EINVAL).ThrowErr(env, "Invalid fd");
45 return nullptr;
46 }
47
48 int mode;
49 tie(succ, mode) = NVal(env, funcArg[NARG_POS::SECOND]).ToInt32();
50 if (!succ) {
51 UniError(EINVAL).ThrowErr(env, "Invalid mode");
52 return nullptr;
53 }
54
55 int ret = fchmod(fd, mode);
56 if (ret == -1) {
57 UniError(errno).ThrowErr(env);
58 return nullptr;
59 }
60
61 return NVal::CreateUndefined(env).val_;
62 }
63
64
Async(napi_env env,napi_callback_info info)65 napi_value Fchmod::Async(napi_env env, napi_callback_info info)
66 {
67 NFuncArg funcArg(env, info);
68 if (!funcArg.InitArgs(NARG_CNT::TWO, NARG_CNT::THREE)) {
69 UniError(EINVAL).ThrowErr(env, "Number of arguments unmatched");
70 return nullptr;
71 }
72
73 size_t argc = funcArg.GetArgc();
74 bool succ = false;
75 int fd;
76 tie(succ, fd) = NVal(env, funcArg[NARG_POS::FIRST]).ToInt32();
77 if (!succ) {
78 UniError(EINVAL).ThrowErr(env, "Invalid fd");
79 return nullptr;
80 }
81
82 int mode;
83 tie(succ, mode) = NVal(env, funcArg[NARG_POS::SECOND]).ToInt32();
84 if (!succ) {
85 UniError(EINVAL).ThrowErr(env, "Invalid owner");
86 }
87
88 auto cbExec = [fd, mode](napi_env env) -> UniError {
89 int ret = fchmod(fd, mode);
90 if (ret == -1) {
91 return UniError(errno);
92 } else {
93 return UniError(ERRNO_NOERR);
94 }
95 };
96
97 auto cbComplCallback = [](napi_env env, UniError err) -> NVal {
98 if (err) {
99 return { env, err.GetNapiErr(env) };
100 }
101 return { NVal::CreateUndefined(env) };
102 };
103
104 string procedureName = "FileIOFchmod";
105 NVal thisVar(env, funcArg.GetThisVar());
106 if (argc == NARG_CNT::TWO) {
107 return NAsyncWorkPromise(env, thisVar).Schedule(procedureName, cbExec, cbComplCallback).val_;
108 } else {
109 NVal cb(env, funcArg[NARG_POS::THIRD]);
110 return NAsyncWorkCallback(env, thisVar, cb).Schedule(procedureName, cbExec, cbComplCallback).val_;
111 }
112 }
113 } // namespace ModuleFileIO
114 } // namespace DistributedFS
115 } // namespace OHOS