/*
 * Copyright (C) 2017 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_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H
#define ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H

#include <vector>

#include "HalInterfaces.h"

namespace android {
namespace nn {

struct RunTimeOperandInfo;

class HashtableLookup {
   public:
    HashtableLookup(const hal::Operation& operation, RunTimeOperandInfo* operands);

    bool Eval();

    static constexpr int kLookupTensor = 0;
    static constexpr int kKeyTensor = 1;
    static constexpr int kValueTensor = 2;

    static constexpr int kOutputTensor = 0;
    static constexpr int kHitsTensor = 1;

   private:
    const RunTimeOperandInfo* lookup_;
    const RunTimeOperandInfo* key_;
    const RunTimeOperandInfo* value_;

    RunTimeOperandInfo* output_;
    RunTimeOperandInfo* hits_;
};

}  // namespace nn
}  // namespace android

#endif  // ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H