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////////////////////////////////////////////////////////////////////////////// // // (C) Copyright Ion Gaztanaga 2015-2015. Distributed under the Boost // Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // // See http://www.boost.org/libs/container for documentation. // ////////////////////////////////////////////////////////////////////////////// #ifndef BOOST_CONTAINER_PMR_POOL_OPTIONS_HPP #define BOOST_CONTAINER_PMR_POOL_OPTIONS_HPP #if defined (_MSC_VER) # pragma once #endif #include <cstddef> namespace boost { namespace container { namespace pmr { //! The members of pool_options comprise a set of constructor options for pool resources. //! The effect of each option on the pool resource behavior is described below: //! //! - `std::size_t max_blocks_per_chunk`: The maximum number of blocks that will be allocated //! at once from the upstream memory resource to replenish a pool. If the value of //! `max_blocks_per_chunk` is zero or is greater than an implementation-defined limit, //! that limit is used instead. The implementation may choose to use a smaller value //! than is specified in this field and may use different values for different pools. //! //! - `std::size_t largest_required_pool_block`: The largest allocation size that is required //! to be fulfilled using the pooling mechanism. Attempts to allocate a single block //! larger than this threshold will be allocated directly from the upstream memory //! resource. If largest_required_pool_block is zero or is greater than an //! implementation-defined limit, that limit is used instead. The implementation may //! choose a pass-through threshold larger than specified in this field. struct pool_options { pool_options() : max_blocks_per_chunk(0u), largest_required_pool_block(0u) {} std::size_t max_blocks_per_chunk; std::size_t largest_required_pool_block; }; } //namespace pmr { } //namespace container { } //namespace boost { #endif //BOOST_CONTAINER_PMR_POOL_OPTIONS_HPP