contur2
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i_page_replacement.h
Go to the documentation of this file.
1
3
4#pragma once
5
6#include <string_view>
7
8#include "contur/core/types.h"
9
10#include "contur/memory/page_table.h"
11
12namespace contur {
13
19 class IPageReplacementPolicy
20 {
21 public:
22 virtual ~IPageReplacementPolicy() = default;
23
25 [[nodiscard]] virtual std::string_view name() const noexcept = 0;
26
30 [[nodiscard]] virtual FrameId selectVictim(const PageTable &pageTable) = 0;
31
33 virtual void onAccess(FrameId frame) = 0;
34
36 virtual void onLoad(FrameId frame) = 0;
37
39 virtual void reset() = 0;
40 };
41
42} // namespace contur
contur::IPageReplacementPolicy
Abstract interface for page replacement algorithms.
Definition i_page_replacement.h:20
contur::IPageReplacementPolicy::onLoad
virtual void onLoad(FrameId frame)=0
Notifies the policy that a new page was loaded into a frame.
contur::IPageReplacementPolicy::selectVictim
virtual FrameId selectVictim(const PageTable &pageTable)=0
Selects a victim frame to evict.
contur::IPageReplacementPolicy::reset
virtual void reset()=0
Resets the policy's internal state.
contur::IPageReplacementPolicy::~IPageReplacementPolicy
virtual ~IPageReplacementPolicy()=default
contur::IPageReplacementPolicy::onAccess
virtual void onAccess(FrameId frame)=0
Notifies the policy that a frame was accessed (read or write).
contur::IPageReplacementPolicy::name
virtual std::string_view name() const noexcept=0
Returns the name of the algorithm (e.g., "FIFO", "LRU").
contur::PageTable
Page table mapping virtual page numbers to physical frames.
Definition page_table.h:27
contur
Definition block.h:15
contur::FrameId
std::uint32_t FrameId
Frame number in physical memory.
Definition types.h:43
page_table.h
PageTable — virtual-to-physical frame mapping with status bits.
types.h
Common type aliases, sentinel constants, and forward declarations used throughout the Contur 2 kernel...