1 /*
2 * Copyright (C) 2024 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #pragma once
17
18 #include <binder/Status.h>
19 #include <error/expected_utils.h>
20 #include <utils/Errors.h>
21
22 namespace android {
23 namespace error {
24
25 /**
26 * A convenience short-hand for base::expected, where the error type is a binder::Status, for use
27 * when implementing binder services.
28 * Clients need to link against libbinder, since this library is header only.
29 */
30 template <typename T>
31 using BinderResult = base::expected<T, binder::Status>;
32
unexpectedExceptionCode(int32_t exceptionCode,const char * s)33 inline base::unexpected<binder::Status> unexpectedExceptionCode(int32_t exceptionCode,
34 const char* s) {
35 return base::unexpected{binder::Status::fromExceptionCode(exceptionCode, s)};
36 }
37
unexpectedServiceException(int32_t serviceSpecificCode,const char * s)38 inline base::unexpected<binder::Status> unexpectedServiceException(int32_t serviceSpecificCode,
39 const char* s) {
40 return base::unexpected{binder::Status::fromServiceSpecificError(serviceSpecificCode, s)};
41 }
42
43 } // namespace error
44 } // namespace android
45
errorToString(const::android::binder::Status & status)46 inline std::string errorToString(const ::android::binder::Status& status) {
47 return std::string{status.toString8().c_str()};
48 }
49