1 /*
2 * Copyright (c) 2025 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 "read_ani.h"
17
18 #include <optional>
19 #include "ani_helper.h"
20 #include "error_handler.h"
21 #include "filemgmt_libhilog.h"
22 #include "read_core.h"
23 #include "type_converter.h"
24
25 namespace OHOS::FileManagement::ModuleFileIO::ANI {
26
27 using namespace std;
28 using namespace OHOS::FileManagement::ModuleFileIO;
29
ToReadOptions(ani_env * env,ani_object obj)30 static tuple<bool, optional<ReadOptions>> ToReadOptions(ani_env *env, ani_object obj)
31 {
32 ReadOptions options;
33 ani_boolean isUndefined;
34 env->Reference_IsUndefined(obj, &isUndefined);
35 if (isUndefined) {
36 return { true, nullopt };
37 }
38
39 auto [succOffset, offset] = AniHelper::ParseInt64Option(env, obj, "offset");
40 if (!succOffset) {
41 HILOGE("Illegal option.offset parameter");
42 return { false, nullopt };
43 }
44 options.offset = offset;
45
46 auto [succLength, length] = AniHelper::ParseInt64Option(env, obj, "length");
47 if (!succLength) {
48 HILOGE("Illegal option.length parameter");
49 return { false, nullopt };
50 }
51 options.length = length;
52
53 return { true, make_optional<ReadOptions>(move(options)) };
54 }
55
ReadSync(ani_env * env,ani_class clazz,ani_double fd,ani_arraybuffer buffer,ani_object options)56 ani_double ReadAni::ReadSync(
57 ani_env *env, [[maybe_unused]] ani_class clazz, ani_double fd, ani_arraybuffer buffer, ani_object options)
58 {
59 auto [succBuf, arrayBuffer] = TypeConverter::ToArrayBuffer(env, buffer);
60 if (!succBuf) {
61 HILOGE("Failed to resolve arrayBuffer!");
62 ErrorHandler::Throw(env, EINVAL);
63 return -1;
64 }
65
66 auto [succOp, op] = ToReadOptions(env, options);
67 if (!succOp) {
68 HILOGE("Failed to resolve options!");
69 ErrorHandler::Throw(env, EINVAL);
70 return -1;
71 }
72
73 auto ret = ReadCore::DoRead(static_cast<int32_t>(fd), arrayBuffer, op);
74 if (!ret.IsSuccess()) {
75 HILOGE("Read file content failed!");
76 const auto &err = ret.GetError();
77 ErrorHandler::Throw(env, err);
78 return -1;
79 }
80 return static_cast<double>(ret.GetData().value());
81 }
82 } // namespace OHOS::FileManagement::ModuleFileIO::ANI