buf

Documentation

Overview

buf manages sub-block disk objects, to be packed into disk blocks

Index

• type Buf
  • func MkBuf(addr addr.Addr, sz uint64, data []byte) *Buf
  • func MkBufLoad(addr addr.Addr, sz uint64, blk disk.Block) *Buf
  • func (buf *Buf) BnumGet(off uint64) common.Bnum
  • func (buf *Buf) BnumPut(off uint64, v common.Bnum)
  • func (buf *Buf) Install(blk disk.Block)
  • func (buf *Buf) IsDirty() bool
  • func (buf *Buf) SetDirty()
  • func (buf *Buf) WriteDirect(d disk.Disk)
• type BufMap
  • func MkBufMap() *BufMap
  • func (bmap *BufMap) Del(addr addr.Addr)
  • func (bmap *BufMap) DirtyBufs() []*Buf
  • func (bmap *BufMap) Insert(buf *Buf)
  • func (bmap *BufMap) Lookup(addr addr.Addr) *Buf
  • func (bmap *BufMap) Ndirty() uint64

Types

type Buf

type Buf struct {
	Addr addr.Addr
	Sz   uint64 // number of bits
	Data []byte
	// contains filtered or unexported fields
}

A Buf is a write to a disk object (inode, a bitmap bit, or disk block)

func MkBuf

func MkBuf(addr addr.Addr, sz uint64, data []byte) *Buf

func MkBufLoad

func MkBufLoad(addr addr.Addr, sz uint64, blk disk.Block) *Buf

Load the bits of a disk block into a new buf, as specified by addr

func (*Buf) BnumGet

func (buf *Buf) BnumGet(off uint64) common.Bnum

func (*Buf) BnumPut

func (buf *Buf) BnumPut(off uint64, v common.Bnum)

func (*Buf) Install

func (buf *Buf) Install(blk disk.Block)

Install the bits from buf into blk. Two cases: a bit or an inode

func (*Buf) IsDirty

func (buf *Buf) IsDirty() bool

func (*Buf) SetDirty

func (buf *Buf) SetDirty()

func (*Buf) WriteDirect

func (buf *Buf) WriteDirect(d disk.Disk)

type BufMap

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

func MkBufMap

func MkBufMap() *BufMap

func (*BufMap) Del

func (bmap *BufMap) Del(addr addr.Addr)

func (*BufMap) DirtyBufs

func (bmap *BufMap) DirtyBufs() []*Buf

func (*BufMap) Insert

func (bmap *BufMap) Insert(buf *Buf)

func (*BufMap) Lookup

func (bmap *BufMap) Lookup(addr addr.Addr) *Buf

func (*BufMap) Ndirty

func (bmap *BufMap) Ndirty() uint64