67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
/** @file ArenaConfig.hpp
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*
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* @author Roland Conybeare, Dec 2025
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**/
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#pragma once
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#include "AllocHeaderConfig.hpp"
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#include <string>
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#include <cstdint>
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namespace xo {
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namespace mm {
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/** @class ArenaConfig
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*
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* @brief configuration for a @ref DArena instance
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**/
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struct ArenaConfig {
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/** @defgroup mm-arenaconfig-ctors **/
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ArenaConfig with_name(std::string name) const {
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ArenaConfig copy(*this);
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copy.name_ = name;
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return copy;
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}
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ArenaConfig with_size(std::size_t z) const {
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ArenaConfig copy(*this);
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copy.size_ = z;
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return copy;
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}
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ArenaConfig with_store_header_flag(bool x) const {
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ArenaConfig copy(*this);
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copy.store_header_flag_ = x;
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return copy;
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}
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/** @defgroup mm-arenaconfig-instance-vars ArenaConfig members **/
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///@{
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/** optional name, for diagnostics **/
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std::string name_;
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/** desired arena size -- hard max = reserved virtual memory **/
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std::size_t size_ = 0;
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/** hugepage size -- using huge pages relieves some TLB pressure
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* (provided you use their full extent :)
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**/
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std::size_t hugepage_z_ = 2 * 1024 * 1024;
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/** true to store header (8 bytes) at the beginning of each allocation.
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* necessary and sufficient to allows iterating over allocs
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* present in arena.
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**/
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bool store_header_flag_ = false;
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/** configuration for per-alloc header **/
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AllocHeaderConfig header_{};
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/** true to enable debug logging **/
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bool debug_flag_ = false;
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///@}
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};
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} /*namespace mm*/
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} /*namespace xo*/
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/* end ArenaConfig.hpp */
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