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/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_RESILIENT_EXECUTION_H
#define ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_RESILIENT_EXECUTION_H
#include <android-base/thread_annotations.h>
#include <nnapi/IExecution.h>
#include <nnapi/Result.h>
#include <nnapi/Types.h>
#include <functional>
#include <memory>
#include <mutex>
#include <utility>
#include <vector>
namespace android::hardware::neuralnetworks::utils {
class ResilientExecution final : public nn::IExecution,
public std::enable_shared_from_this<ResilientExecution> {
struct PrivateConstructorTag {};
public:
using Factory = std::function<nn::GeneralResult<nn::SharedExecution>()>;
static nn::GeneralResult<std::shared_ptr<const ResilientExecution>> create(
Factory makeExecution);
ResilientExecution(PrivateConstructorTag tag, Factory makeExecution,
nn::SharedExecution execution);
nn::SharedExecution getExecution() const;
nn::GeneralResult<nn::SharedExecution> recover(const nn::IExecution* failingExecution) const;
nn::ExecutionResult<std::pair<std::vector<nn::OutputShape>, nn::Timing>> compute(
const nn::OptionalTimePoint& deadline) const override;
nn::GeneralResult<std::pair<nn::SyncFence, nn::ExecuteFencedInfoCallback>> computeFenced(
const std::vector<nn::SyncFence>& waitFor, const nn::OptionalTimePoint& deadline,
const nn::OptionalDuration& timeoutDurationAfterFence) const override;
private:
bool isValidInternal() const EXCLUDES(mMutex);
const Factory kMakeExecution;
mutable std::mutex mMutex;
mutable nn::SharedExecution mExecution GUARDED_BY(mMutex);
};
} // namespace android::hardware::neuralnetworks::utils
#endif // ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_COMMON_RESILIENT_EXECUTION_H
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