paul@1 | 1 | #pragma once |
paul@1 | 2 | |
paul@30 | 3 | #include <systypes/base.h> |
paul@30 | 4 | |
paul@1 | 5 | #include <mutex> |
paul@1 | 6 | |
paul@72 | 7 | #include "memory.h" |
paul@1 | 8 | #include "memory_utils.h" |
paul@1 | 9 | |
paul@1 | 10 | |
paul@1 | 11 | |
paul@1 | 12 | /* A memory pool abstraction. */ |
paul@1 | 13 | |
paul@72 | 14 | class MemoryIncremental : public Memory |
paul@1 | 15 | { |
paul@1 | 16 | protected: |
paul@1 | 17 | std::mutex _lock; |
paul@1 | 18 | |
paul@1 | 19 | unsigned int _limit; |
paul@1 | 20 | offset_t _region_size; |
paul@1 | 21 | bool _limited; |
paul@1 | 22 | |
paul@63 | 23 | Region *allocate(offset_t size); |
paul@63 | 24 | |
paul@1 | 25 | public: |
paul@72 | 26 | explicit MemoryIncremental(unsigned int limit, offset_t region_size=PAGE_SIZE); |
paul@72 | 27 | |
paul@72 | 28 | explicit MemoryIncremental(); |
paul@1 | 29 | |
paul@72 | 30 | virtual Region *region(offset_t size); |
paul@1 | 31 | |
paul@72 | 32 | virtual Region *region(); |
paul@72 | 33 | |
paul@72 | 34 | virtual offset_t region_size() |
paul@63 | 35 | { return _region_size; } |
paul@14 | 36 | |
paul@72 | 37 | virtual void release(Region *region); |
paul@1 | 38 | }; |
paul@1 | 39 | |
paul@1 | 40 | // vim: tabstop=4 expandtab shiftwidth=4 |