2021-03-27 | Paul Boddie | file changeset files shortlog | Moved file and pipe functionality into separate subdirectories. |
paul@1 | 1 | #pragma once |
paul@1 | 2 | |
paul@30 | 3 | #include <systypes/base.h> |
paul@30 | 4 | |
paul@1 | 5 | #include <list> |
paul@1 | 6 | #include <mutex> |
paul@1 | 7 | |
paul@1 | 8 | #include "memory_utils.h" |
paul@1 | 9 | #include "region.h" |
paul@1 | 10 | |
paul@1 | 11 | |
paul@1 | 12 | |
paul@1 | 13 | /* A memory pool abstraction. */ |
paul@1 | 14 | |
paul@1 | 15 | class Memory |
paul@1 | 16 | { |
paul@1 | 17 | protected: |
paul@1 | 18 | std::mutex _lock; |
paul@1 | 19 | |
paul@1 | 20 | unsigned int _limit; |
paul@1 | 21 | offset_t _region_size; |
paul@1 | 22 | bool _limited; |
paul@1 | 23 | |
paul@63 | 24 | Region *allocate(offset_t size); |
paul@63 | 25 | |
paul@1 | 26 | public: |
paul@1 | 27 | explicit Memory(unsigned int limit, offset_t region_size=PAGE_SIZE); |
paul@1 | 28 | |
paul@1 | 29 | explicit Memory(); |
paul@1 | 30 | |
paul@63 | 31 | offset_t region_size() |
paul@63 | 32 | { return _region_size; } |
paul@14 | 33 | |
paul@1 | 34 | Region *region(offset_t size); |
paul@1 | 35 | |
paul@1 | 36 | Region *region(); |
paul@1 | 37 | |
paul@1 | 38 | void release(Region *region); |
paul@1 | 39 | }; |
paul@1 | 40 | |
paul@1 | 41 | // vim: tabstop=4 expandtab shiftwidth=4 |