30 lines
760 B
C++
30 lines
760 B
C++
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#include "Kernel.h"
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Kernel::Kernel(const List<PhysicalPage> &free_pages, const List<PhysicalPage> &busy_pages)
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: free_pages(free_pages), busy_pages(busy_pages) {
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}
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void Kernel::page_fault(PageTable page_table, const int idx) {
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PhysicalPage *page;
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if (!this->free_pages.is_empty()) {
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page = free_pages.last();
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free_pages.remove(page);
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busy_pages.insert_tail(page);
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} else {
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page = nullptr; // TODO: page replacement algorithm
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}
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if (page) {
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page_table[idx].PPN = page->PPN;
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page_table[idx].P = true;
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page_table[idx].R = false;
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page_table[idx].M = false;
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}
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}
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void Kernel::stat_update() {
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for (int i = 0; i < 10; ++i) {
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// TODO: update busy page stats
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}
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}
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