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74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsRAN is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSRAN_POOL_UTILS_H
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#define SRSRAN_POOL_UTILS_H
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#include "../move_callback.h"
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#include <memory>
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namespace srsran {
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namespace detail {
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template <typename T>
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struct inplace_default_ctor_operator {
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void operator()(void* ptr) { new (ptr) T(); }
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};
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struct noop_operator {
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template <typename T>
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void operator()(T&& t) const
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{
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// do nothing
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}
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};
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} // namespace detail
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/// check if alignment is power of 2
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constexpr bool is_valid_alignment(std::size_t alignment)
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{
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return alignment && (alignment & (alignment - 1)) == 0u;
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}
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inline bool is_aligned(void* ptr, std::size_t alignment)
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{
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return (reinterpret_cast<std::uintptr_t>(ptr) & (alignment - 1)) == 0;
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}
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constexpr std::uintptr_t align_next(std::uintptr_t pos, size_t alignment)
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{
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return (pos + (alignment - 1)) & ~(alignment - 1);
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}
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inline void* align_to(void* pos, size_t alignment)
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{
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return reinterpret_cast<void*>(align_next(reinterpret_cast<std::uintptr_t>(pos), alignment));
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}
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inline void* offset_byte_ptr(void* pos, size_t offset)
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{
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return static_cast<void*>(static_cast<uint8_t*>(pos) + offset);
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}
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} // namespace srsran
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#endif // SRSRAN_POOL_UTILS_H
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