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 "fsync.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 Fsync::Sync(napi_env env, napi_callback_info info)
31 {
32 NFuncArg funcArg(env, info);
33
34 if (!funcArg.InitArgs(NARG_CNT::ONE)) {
35 UniError(EINVAL).ThrowErr(env, "Number of arguments unmatched");
36 return nullptr;
37 }
38
39 bool succ = false;
40 int fd;
41 tie(succ, fd) = NVal(env, funcArg[NARG_POS::FIRST]).ToInt32();
42 if (!succ) {
43 UniError(EINVAL).ThrowErr(env, "Invalid fd");
44 return nullptr;
45 }
46
47 if (fsync(fd) == -1) {
48 UniError(errno).ThrowErr(env);
49 return nullptr;
50 }
51 return NVal::CreateUndefined(env).val_;
52 }
53
Async(napi_env env,napi_callback_info info)54 napi_value Fsync::Async(napi_env env, napi_callback_info info)
55 {
56 NFuncArg funcArg(env, info);
57
58 if (!funcArg.InitArgs(NARG_CNT::ONE, NARG_CNT::TWO)) {
59 UniError(EINVAL).ThrowErr(env, "Number of arguments unmatched");
60 return nullptr;
61 }
62
63 bool succ = false;
64 int fd;
65 tie(succ, fd) = NVal(env, funcArg[NARG_POS::FIRST]).ToInt32();
66 if (!succ) {
67 UniError(EINVAL).ThrowErr(env, "Invalid fd");
68 return nullptr;
69 }
70
71 auto cbExec = [fd](napi_env env) -> UniError {
72 if (fsync(fd) == -1) {
73 return UniError(errno);
74 } else {
75 return UniError(ERRNO_NOERR);
76 }
77 };
78 auto cbComplete = [](napi_env env, UniError err) -> NVal {
79 if (err) {
80 return { env, err.GetNapiErr(env) };
81 } else {
82 return NVal::CreateUndefined(env);
83 }
84 };
85 string procedureName = "FileIOFsync";
86 size_t argc = funcArg.GetArgc();
87 NVal thisVar(env, funcArg.GetThisVar());
88 if (argc == NARG_CNT::ONE) {
89 return NAsyncWorkPromise(env, thisVar).Schedule(procedureName, cbExec, cbComplete).val_;
90 } else {
91 NVal cb(env, funcArg[NARG_POS::SECOND]);
92 return NAsyncWorkCallback(env, thisVar, cb).Schedule(procedureName, cbExec, cbComplete).val_;
93 }
94 }
95 } // namespace ModuleFileIO
96 } // namespace DistributedFS
97 } // namespace OHOS
98