102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef __PHY_TEST_TOOLS_HPP__
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#define __PHY_TEST_TOOLS_HPP__
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#include <vector>
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#include <random>
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#include <algorithm>
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extern "C" {
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#include "openair1/PHY/TOOLS/tools_defs.h"
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}
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constexpr bool is_power_of_two(uint64_t n)
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{
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return n != 0 && (n & (n - 1)) == 0;
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}
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size_t align_up(size_t a, size_t b)
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{
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return (a + b - 1) / b * b;
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}
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// Template adaptations for std::vector. This is needed because the avx functions expect 256 bit alignment.
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template <typename T, size_t alignment>
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class AlignedAllocator {
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public:
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static_assert(is_power_of_two(alignment), "Alignment should be power of 2");
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static_assert(alignment >= 8, "Alignment must be at least 8 bits");
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using value_type = T;
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AlignedAllocator() = default;
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AlignedAllocator(const AlignedAllocator &) = default;
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AlignedAllocator &operator=(const AlignedAllocator &) = default;
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template <typename U>
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struct rebind {
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using other = AlignedAllocator<U, alignment>;
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};
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T *allocate(size_t n)
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{
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size_t alignment_bytes = alignment / 8;
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void *ptr = ::aligned_alloc(alignment_bytes, align_up(n * sizeof(T), alignment_bytes));
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return static_cast<T *>(ptr);
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}
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void deallocate(T *p, size_t n)
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{
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::free(p);
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}
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};
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// Using 512-aligned vector in case some functions use avx-512
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template <typename T>
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using AlignedAllocator512 = AlignedAllocator<T, 512>;
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template <typename T>
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using AlignedVector512 = std::vector<T, AlignedAllocator512<T>>;
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AlignedVector512<c16_t> generate_random_c16(size_t num)
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{
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std::random_device rd;
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std::mt19937 rng(rd());
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std::uniform_int_distribution<int16_t> dist(-INT16_MAX, INT16_MAX);
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AlignedVector512<c16_t> vec;
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vec.resize(num);
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auto gen = [&]() { return (c16_t){dist(rng), dist(rng)}; };
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std::generate(vec.begin(), vec.end(), gen);
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return vec;
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}
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AlignedVector512<uint16_t> generate_random_uint16(size_t num)
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{
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AlignedVector512<uint16_t> vec;
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vec.resize(num);
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auto gen = [&]() { return static_cast<uint16_t>(std::rand()); };
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std::generate(vec.begin(), vec.end(), gen);
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return vec;
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}
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#endif
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