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