1 /*
2 * Copyright (C) 2020 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
17 #ifndef ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_HANDLE_ERROR_H
18 #define ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_HANDLE_ERROR_H
19
20 #include <android/hidl/base/1.0/IBase.h>
21 #include <hidl/HidlSupport.h>
22 #include <nnapi/Result.h>
23 #include <nnapi/Types.h>
24
25 #include <type_traits>
26
27 namespace android::hardware::neuralnetworks::utils {
28
29 template <typename Type>
handleTransportError(const hardware::Return<Type> & ret)30 nn::GeneralResult<Type> handleTransportError(const hardware::Return<Type>& ret) {
31 if (ret.isDeadObject()) {
32 return nn::error(nn::ErrorStatus::DEAD_OBJECT)
33 << "Return<>::isDeadObject returned true: " << ret.description();
34 }
35 if (!ret.isOk()) {
36 return nn::error(nn::ErrorStatus::GENERAL_FAILURE)
37 << "Return<>::isOk returned false: " << ret.description();
38 }
39 if constexpr (!std::is_same_v<Type, void>) {
40 return static_cast<Type>(ret);
41 } else {
42 return {};
43 }
44 }
45
46 #define HANDLE_TRANSPORT_FAILURE(ret) \
47 ({ \
48 auto result = ::android::hardware::neuralnetworks::utils::handleTransportError(ret); \
49 if (!result.has_value()) { \
50 return NN_ERROR(result.error().code) << result.error().message; \
51 } \
52 std::move(result).value(); \
53 })
54
55 template <typename Type>
56 nn::GeneralResult<Type> makeGeneralFailure(
57 nn::Result<Type> result, nn::ErrorStatus status = nn::ErrorStatus::GENERAL_FAILURE) {
58 if (!result.has_value()) {
59 return nn::error(status) << std::move(result).error();
60 }
61 if constexpr (!std::is_same_v<Type, void>) {
62 return std::move(result).value();
63 } else {
64 return {};
65 }
66 }
67
68 template <typename Type>
makeExecutionFailure(nn::GeneralResult<Type> result)69 nn::ExecutionResult<Type> makeExecutionFailure(nn::GeneralResult<Type> result) {
70 if (!result.has_value()) {
71 const auto [message, status] = std::move(result).error();
72 return nn::error(status) << message;
73 }
74 if constexpr (!std::is_same_v<Type, void>) {
75 return std::move(result).value();
76 } else {
77 return {};
78 }
79 }
80
81 template <typename Type>
82 nn::ExecutionResult<Type> makeExecutionFailure(
83 nn::Result<Type> result, nn::ErrorStatus status = nn::ErrorStatus::GENERAL_FAILURE) {
84 return makeExecutionFailure(makeGeneralFailure(result, status));
85 }
86
87 #define HANDLE_HAL_STATUS(status) \
88 if (const auto canonical = ::android::nn::convert(status).value_or( \
89 ::android::nn::ErrorStatus::GENERAL_FAILURE); \
90 canonical == ::android::nn::ErrorStatus::NONE) { \
91 } else \
92 return NN_ERROR(canonical)
93
94 } // namespace android::hardware::neuralnetworks::utils
95
96 #endif // ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_HANDLE_ERROR_H
97