// SPDX-License-Identifier: BSD-2-Clause

/* Copyright (C) 2014 - 2020 Intel Corporation. */

///////////////////////////////////////////////////////////////////////////////////////////////////////////

#include <memkind.h>

#include "memkind_allocated.hpp"

// This code is example usage of C++11 features with custom allocator,

// support for C++11 is required.

#include <iostream>

#if __cplusplus > 199711L

#include <cstdlib>

#include <new>

#include <string>

//example class definition, which derive from  memkind_allocated template to

//have objects allocated with memkind, and have alignment specified by alignas()

class alignas(128) memkind_allocated_example : public

    memkind_allocated<memkind_allocated_example>

{

    std::string message;

public:

    //Override method for returning class default kind to make objects be by default allocated on High-Bandwidth Memory

    static memkind_t getClassKind()

    {

        return MEMKIND_HBW;

    }

    memkind_allocated_example(std::string my_message)

    {

        this->message = my_message;

    }

    memkind_allocated_example()

    {

    }

    void print_message()

    {

        std::cout << message << std::endl;

        std::cout << "Memory address of this object is: " <<  (void *)this << std::endl

                  << std::endl;

    }

};

int main()

{

    memkind_t specified_kind = MEMKIND_HBW_HUGETLB;

    memkind_allocated_example *default_kind_example = new memkind_allocated_example(

        std::string("This object has been allocated using class default kind, which is: MEMKIND_DEFAULT") );

    default_kind_example->print_message();

    delete default_kind_example;

    memkind_allocated_example *specified_kind_example = new(

        specified_kind) memkind_allocated_example(

        std::string("This object has been allocated using specified kind, which is: MEMKIND_HBW_HUGETLB") );

    specified_kind_example->print_message();

    delete specified_kind_example;

    //examples for using same approach for allocating arrays of objects, note that objects created that way can be initialized only with default (unparameterized) constructor

    memkind_allocated_example *default_kind_array_example = new

    memkind_allocated_example[5]();

    delete[] default_kind_array_example;

    memkind_allocated_example *specified_kind_array_example = new(

        specified_kind) memkind_allocated_example[5]();

    delete[] specified_kind_array_example;

    return 0;

}

#else //If C++11 is not available - do nothing.

int main()

{

    std::cout << "WARNING: because your compiler does not support C++11 standard,"

              << std::endl;

    std::cout << "this example is only as a dummy placeholder." << std::endl;

    return 0;

}

#endif