requests_pool.h

/*
// Copyright (C) 2020-2024 Intel Corporation
//
// 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.
*/
 
#pragma once
 
#include <stddef.h>
 
#include <mutex>
#include <utility>
#include <vector>
 
#include <openvino/openvino.hpp>
 
class RequestsPool {
public:
    RequestsPool(ov::CompiledModel& compiledModel, unsigned int size);
    ~RequestsPool();
 
    ov::InferRequest getIdleRequest();
 
    void setRequestIdle(const ov::InferRequest& request);
 
    size_t getInUseRequestsCount();
 
    bool isIdleRequestAvailable();
 
    void waitForTotalCompletion();
 
    std::vector<ov::InferRequest> getInferRequestsList();
 
private:
    std::vector<std::pair<ov::InferRequest, bool>> requests;
    size_t numRequestsInUse;
    std::mutex mtx;
};