futriix/deps/memkind/src/examples/pmem_cpp_allocator.cpp

/*
 * Copyright (c) 2018 Intel Corporation
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY LOG OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#include "pmem_allocator.h"

#include <sys/stat.h>
#include <iostream>
#include <vector>
#include <list>
#include <map>
#include <string>
#include <scoped_allocator>
#include <cassert>

#define STL_VECTOR_TEST
#define STL_LIST_TEST
#if _GLIBCXX_USE_CXX11_ABI
#define STL_VEC_STRING_TEST
#define STL_MAP_INT_STRING_TEST
#endif

void cpp_allocator_test(const char *pmem_directory)
{
    std::cout << "TEST SCOPE: HELLO" << std::endl;

    size_t pmem_max_size = 1024*1024*1024;

#ifdef STL_VECTOR_TEST
    {
        std::cout << "VECTOR OPEN" << std::endl;
        pmem::allocator<int> alc{ pmem_directory, pmem_max_size };
        std::vector<int, pmem::allocator<int>> vector{ alc };

        for (int i = 0; i < 20; ++i) {
            vector.push_back(0xDEAD + i);
            assert(vector.back() == 0xDEAD + i);
        }

        std::cout << "VECTOR CLOSE" << std::endl;
    }
#endif

#ifdef STL_LIST_TEST
    {
        std::cout << "LIST OPEN" << std::endl;
        pmem::allocator<int> alc{ pmem_directory, pmem_max_size };
        std::list<int, pmem::allocator<int>> list{ alc };

        const int nx2 = 4;
        for (int i = 0; i < nx2; ++i) {
            list.emplace_back(0xBEAC011 + i);
            assert(list.back() == 0xBEAC011 + i);
        }

        for (int i = 0; i < nx2; ++i) {
            list.pop_back();
        }

        std::cout << "LIST CLOSE" << std::endl;
    }
#endif

#ifdef STL_VEC_STRING_TEST
    {
        std::cout << "STRINGED VECTOR OPEN" << std::endl;
        typedef pmem::allocator<char> str_alloc_t;
        typedef std::basic_string<char, std::char_traits<char>, str_alloc_t>
        pmem_string;
        typedef pmem::allocator<pmem_string> vec_alloc_t;

        vec_alloc_t vec_alloc{ pmem_directory, pmem_max_size };
        str_alloc_t str_alloc{ pmem_directory, pmem_max_size };

        std::vector<pmem_string, std::scoped_allocator_adaptor<vec_alloc_t> >
        vec{ std::scoped_allocator_adaptor<vec_alloc_t>(vec_alloc) };

        pmem_string arg{ "Very very loooong striiiing", str_alloc };

        vec.push_back(arg);
        assert(vec.back() == arg);

        std::cout << "STRINGED VECTOR CLOSE" << std::endl;
    }

#endif

#ifdef STL_MAP_INT_STRING_TEST
    {
        std::cout << "INT_STRING MAP OPEN" << std::endl;
        typedef std::basic_string<char, std::char_traits<char>, pmem::allocator<char>>
                                                                                    pmem_string;
        typedef int key_t;
        typedef pmem_string value_t;
        typedef pmem::allocator<char> allocator_t;
        typedef std::map<key_t, value_t, std::less<key_t>, std::scoped_allocator_adaptor<allocator_t>>
                map_t;

        allocator_t allocator( pmem_directory, pmem_max_size );

        value_t source_str1("Lorem ipsum dolor ", allocator);
        value_t source_str2("sit amet consectetuer adipiscing elit", allocator );

        map_t target_map{ std::scoped_allocator_adaptor<allocator_t>(allocator) };

        target_map[key_t(165)] = source_str1;
        assert(target_map[key_t(165)] == source_str1);
        target_map[key_t(165)] = source_str2;
        assert(target_map[key_t(165)] == source_str2);

        std::cout << "INT_STRING MAP CLOSE" << std::endl;
    }
#endif
    std::cout << "TEST SCOPE: GOODBYE" << std::endl;
}

int main(int argc, char *argv[])
{
    const char *pmem_directory = "/tmp/";

    if (argc > 2) {
        std::cerr << "Usage: pmem_cpp_allocator [directory path]\n"
                  << "\t[directory path] - directory where temporary file is created (default = \"/tmp/\")"
                  << std::endl;
        return 0;
    } else if (argc == 2) {
        struct stat st;
        if (stat(argv[1], &st) != 0 || !S_ISDIR(st.st_mode)) {
            fprintf(stderr,"%s : Invalid path to pmem kind directory", argv[1]);
            return 1;
        }
        pmem_directory = argv[1];
    }

    cpp_allocator_test(pmem_directory);
    return 0;
}