buffer

package

v0.0.0-...-d2e8aec Latest Latest Go to latest Published: Nov 1, 2020 License: MIT Imports: 5 Imported by: 0

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type BufferPoolManager struct {
	// contains filtered or unexported fields
}

func GetNewBufferPoolManager(buffer_size int, dmi diskio.DiskManager) *BufferPoolManager

func (bpm *BufferPoolManager) AllocatePage(page_id uint32) page.Page

func (bpm *BufferPoolManager) GetPage(page_id uint32) page.Page

not thread safe

func (bpm *BufferPoolManager) Init(buffer_size int, dmi diskio.DiskManager)

func (bpm *BufferPoolManager) PersistAll()

func (bpm *BufferPoolManager) PinPage(page_id uint32) bool

func (bpm *BufferPoolManager) UnPinPage(page_id uint32) bool

type ClockReplacer struct {
	// contains filtered or unexported fields
}

func (cr *ClockReplacer) GetNextVictim() (int, bool)

func (cr *ClockReplacer) PinPage(frame_id int)

func (cr *ClockReplacer) Size() int

func (cr *ClockReplacer) UnPinPage(frame_id int)

type PageTable struct {
	// contains filtered or unexported fields
}

Ephemeral stays in the volatile storage later could make a decision on using sync.Map vs map with locks ref: https://medium.com/@deckarep/the-new-kid-in-town-gos-sync-map-de24a6bf7c2c

func (pt *PageTable) Delete(key uint32)

func (pt *PageTable) Get(key uint32) (int, bool)

func (pt *PageTable) Init()

func (pt *PageTable) InsertOrUpdate(key uint32, val int)

type Replacer interface {
	GetNextVictim() (int, bool)
	PinPage(frame_id int)
	UnPinPage(frame_id int)
	Size() int
}

func NewClockReplacer(buffer_size int) Replacer