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 "fdatasync.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 Fdatasync::Sync(napi_env env, napi_callback_info info)
32 {
33 NFuncArg funcArg(env, info);
34
35 if (!funcArg.InitArgs(NARG_CNT::ONE)) {
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 ret = fdatasync(fd);
49 if (ret == -1) {
50 UniError(errno).ThrowErr(env);
51 return nullptr;
52 }
53
54 return NVal::CreateUndefined(env).val_;
55 }
56
57
Async(napi_env env,napi_callback_info info)58 napi_value Fdatasync::Async(napi_env env, napi_callback_info info)
59 {
60 NFuncArg funcArg(env, info);
61 if (!funcArg.InitArgs(NARG_CNT::ONE, NARG_CNT::TWO)) {
62 UniError(EINVAL).ThrowErr(env, "Number of arguments unmatched");
63 return nullptr;
64 }
65
66 size_t argc = funcArg.GetArgc();
67 bool succ = false;
68 int fd;
69 tie(succ, fd) = NVal(env, funcArg[NARG_POS::FIRST]).ToInt32();
70 if (!succ) {
71 UniError(EINVAL).ThrowErr(env, "Invalid fd");
72 return nullptr;
73 }
74
75 auto cbExec = [fd](napi_env env) -> UniError {
76 int ret = fdatasync(fd);
77 if (ret == -1) {
78 return UniError(errno);
79 } else {
80 return UniError(ERRNO_NOERR);
81 }
82 };
83
84 auto cbComplCallback = [](napi_env env, UniError err) -> NVal {
85 if (err) {
86 return { env, err.GetNapiErr(env) };
87 }
88 return { NVal::CreateUndefined(env) };
89 };
90
91 string procedureName = "FileIOFdatasync";
92 NVal thisVar(env, funcArg.GetThisVar());
93 if (argc == NARG_CNT::ONE) {
94 return NAsyncWorkPromise(env, thisVar).Schedule(procedureName, cbExec, cbComplCallback).val_;
95 } else {
96 NVal cb(env, funcArg[NARG_POS::SECOND]);
97 return NAsyncWorkCallback(env, thisVar, cb).Schedule(procedureName, cbExec, cbComplCallback).val_;
98 }
99 }
100 } // namespace ModuleFileIO
101 } // namespace DistributedFS
102 } // namespace OHOS