paul@65 | 1 | #pragma once |
paul@65 | 2 | |
paul@70 | 3 | #include "page_collection.h" |
paul@70 | 4 | #include "page_queue_partitioned.h" |
paul@65 | 5 | |
paul@65 | 6 | |
paul@65 | 7 | |
paul@65 | 8 | /* A page collection where the pages are "conserved", meaning that they are not |
paul@65 | 9 | queued for reuse unless they are completely unused. */ |
paul@65 | 10 | |
paul@70 | 11 | class PagesConserving : public PageCollection |
paul@65 | 12 | { |
paul@70 | 13 | protected: |
paul@70 | 14 | PageQueuePartitioned _page_queue; |
paul@70 | 15 | |
paul@65 | 16 | public: |
paul@66 | 17 | explicit PagesConserving(Memory *memory); |
paul@65 | 18 | |
paul@65 | 19 | explicit PagesConserving(); |
paul@65 | 20 | |
paul@65 | 21 | /* Specialised methods. */ |
paul@65 | 22 | |
paul@65 | 23 | virtual Flexpage *flexpage(); |
paul@65 | 24 | |
paul@65 | 25 | /* Memory control methods. */ |
paul@65 | 26 | |
paul@66 | 27 | virtual bool decrease(offset_t size); |
paul@65 | 28 | |
paul@66 | 29 | virtual bool increase(offset_t size); |
paul@65 | 30 | }; |
paul@65 | 31 | |
paul@65 | 32 | // vim: tabstop=4 expandtab shiftwidth=4 |