parser

package
v0.0.0-...-9262430 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Jan 18, 2025 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	ROOT_INODE = int64(2)
)

Variables

This section is empty.

Functions

func Debug 

func Debug(arg interface{})

func DebugStruct 

func DebugStruct()

func DlvBreak 

func DlvBreak()

func GetComponents 

func GetComponents(path string) []string

func ParseString 

func ParseString(reader io.ReaderAt, offset int64, length int64) string

func ParseTerminatedString 

func ParseTerminatedString(reader io.ReaderAt, offset int64) string

func ParseUint16 

func ParseUint16(reader io.ReaderAt, offset int64) uint16

func ParseUint32 

func ParseUint32(reader io.ReaderAt, offset int64) uint32

func ParseUint8 

func ParseUint8(reader io.ReaderAt, offset int64) byte

Types

type BlockGroup 

type BlockGroup struct {
	Reader  io.ReaderAt
	Profile *EXT4Profile

	GroupDescriptors []*GroupDescriptor

	BlockSize      int64
	InodesPerGroup int64
	InodeSize      int64
}

func NewBlockGroup 

func NewBlockGroup(ctx *EXT4Context, r io.ReaderAt) (*BlockGroup, error)

func (*BlockGroup) GetDescriptor 

func (self *BlockGroup) GetDescriptor(inode int64) (*GroupDescriptor, error)

func (*BlockGroup) GroupNumber 

func (self *BlockGroup) GroupNumber(inode int64) int64

Which block group we need to look at

func (*BlockGroup) OpenInode 

func (self *BlockGroup) OpenInode(inode int64) (*Inode, error)

func (*BlockGroup) RelativeIndodeNumber 

func (self *BlockGroup) RelativeIndodeNumber(inode int64) int64

The relative inode number in the block group

type DirEntry 

type DirEntry struct {
	Inode    int64
	Name     string
	FileMode fs.FileMode
}

type EXT4Context 

type EXT4Context struct {
	Reader  io.ReaderAt
	Profile *EXT4Profile

	Header *Header

	Is64Bit bool

	BlockCount                int64
	FirstDataBlockOffset      int64
	GroupDescriptorTableCount int64
	GroupDescriptorCount      int64
	BlockSize                 int64
	GroupsPerFlex             uint32
	InodesPerGroup            int64
	InodeSize                 int64

	BlockGroup *BlockGroup
}

func GetEXT4Context 

func GetEXT4Context(reader io.ReaderAt) (*EXT4Context, error)

func (*EXT4Context) DebugString 

func (self *EXT4Context) DebugString() string

func (*EXT4Context) OpenInode 

func (self *EXT4Context) OpenInode(inode int64, components []string) (*Inode, error)

func (*EXT4Context) OpenInodeWithPath 

func (self *EXT4Context) OpenInodeWithPath(components []string) (*Inode, error)

type EXT4Profile 

type EXT4Profile struct {
	Off_Ext4DirEntry_Inode              int64
	Off_Ext4DirEntry_RecLen             int64
	Off_Ext4DirEntry_NameLen            int64
	Off_Ext4DirEntry_FileTypeInt        int64
	Off_Ext4DirEntry_FileType           int64
	Off_Ext4DirEntry_Name               int64
	Off_ExtentEntry_FirstLogicalBlock   int64
	Off_ExtentEntry_Length              int64
	Off_ExtentEntry_StartHi             int64
	Off_ExtentEntry_StartLo             int64
	Off_ExtentHeader_Magic              int64
	Off_ExtentHeader_EntryCount         int64
	Off_ExtentHeader_Max                int64
	Off_ExtentHeader_Depth              int64
	Off_ExtentHeader_Generation         int64
	Off_ExtentHeader__EntryArray        int64
	Off_ExtentHeader__IndexEntryArray   int64
	Off_ExtentIndex_FirstLogicalBlock   int64
	Off_ExtentIndex_LeafLo              int64
	Off_ExtentIndex_LeafHi              int64
	Off_GroupDescriptor32_BlockBitmapLo int64
	Off_GroupDescriptor32_InodeBitmapLo int64
	Off_GroupDescriptor32_InodeTableLo  int64
	Off_GroupDescriptor64_BlockBitmapLo int64
	Off_GroupDescriptor64_InodeBitmapLo int64
	Off_GroupDescriptor64_InodeTableLo  int64
	Off_GroupDescriptor64_BlockBitmapHi int64
	Off_GroupDescriptor64_InodeBitmapHi int64
	Off_GroupDescriptor64_InodeTableHi  int64
	Off_Header_Superblock               int64
	Off_Inode__Mode                     int64
	Off_Inode__Uid                      int64
	Off_Inode__UidHi                    int64
	Off_Inode__SizeLo                   int64
	Off_Inode__SizeHi                   int64
	Off_Inode__BlockPointers            int64
	Off_Inode__Atime                    int64
	Off_Inode__AtimeExtra               int64
	Off_Inode__Ctime                    int64
	Off_Inode__CtimeExtra               int64
	Off_Inode__Mtime                    int64
	Off_Inode__MtimeExtra               int64
	Off_Inode__CRtime                   int64
	Off_Inode__CRtimeExtra              int64
	Off_Inode__Dtime                    int64
	Off_Inode__Gid                      int64
	Off_Inode__GidHi                    int64
	Off_Inode__LinksCount               int64
	Off_Inode__BlocksLo                 int64
	Off_Inode__Flags                    int64
	Off_Misc_GD32                       int64
	Off_Misc_GD64                       int64
	Off_Superblock_InodeCount           int64
	Off_Superblock_BlockCountLo         int64
	Off_Superblock_BlockCountHi         int64
	Off_Superblock_FirstDataBlock       int64
	Off_Superblock_FeatureIncompat      int64
	Off_Superblock_FeatureCompat        int64
	Off_Superblock_BlockPerGroup        int64
	Off_Superblock_InodePerGroup        int64
	Off_Superblock_InodeSize            int64
	Off_Superblock_LogBlockSize         int64
	Off_Superblock_LogGroupPerFlex      int64
	Off_Superblock_Magic                int64
}

func NewEXT4Profile 

func NewEXT4Profile() *EXT4Profile

func (*EXT4Profile) Ext4DirEntry 

func (self *EXT4Profile) Ext4DirEntry(reader io.ReaderAt, offset int64) *Ext4DirEntry

func (*EXT4Profile) ExtentEntry 

func (self *EXT4Profile) ExtentEntry(reader io.ReaderAt, offset int64) *ExtentEntry

func (*EXT4Profile) ExtentHeader 

func (self *EXT4Profile) ExtentHeader(reader io.ReaderAt, offset int64) *ExtentHeader

func (*EXT4Profile) ExtentIndex 

func (self *EXT4Profile) ExtentIndex(reader io.ReaderAt, offset int64) *ExtentIndex

func (*EXT4Profile) GroupDescriptor32 

func (self *EXT4Profile) GroupDescriptor32(reader io.ReaderAt, offset int64) *GroupDescriptor32

func (*EXT4Profile) GroupDescriptor64 

func (self *EXT4Profile) GroupDescriptor64(reader io.ReaderAt, offset int64) *GroupDescriptor64

func (*EXT4Profile) Header 

func (self *EXT4Profile) Header(reader io.ReaderAt, offset int64) *Header

func (*EXT4Profile) Inode_ 

func (self *EXT4Profile) Inode_(reader io.ReaderAt, offset int64) *Inode_

func (*EXT4Profile) Misc 

func (self *EXT4Profile) Misc(reader io.ReaderAt, offset int64) *Misc

func (*EXT4Profile) Superblock 

func (self *EXT4Profile) Superblock(reader io.ReaderAt, offset int64) *Superblock

type Enumeration 

type Enumeration struct {
	Value uint64
	Name  string
}

func (Enumeration) DebugString 

func (self Enumeration) DebugString() string

type EvictCallback 

type EvictCallback func(key int, value interface{})

EvictCallback is used to get a callback when a cache entry is evicted

type Ext4DirEntry 

type Ext4DirEntry struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*Ext4DirEntry) DebugString 

func (self *Ext4DirEntry) DebugString() string

func (*Ext4DirEntry) FileType 

func (self *Ext4DirEntry) FileType() *Enumeration

func (*Ext4DirEntry) FileTypeInt 

func (self *Ext4DirEntry) FileTypeInt() byte

func (*Ext4DirEntry) Inode 

func (self *Ext4DirEntry) Inode() uint32

func (*Ext4DirEntry) Name 

func (self *Ext4DirEntry) Name() string

func (*Ext4DirEntry) NameLen 

func (self *Ext4DirEntry) NameLen() byte

func (*Ext4DirEntry) RecLen 

func (self *Ext4DirEntry) RecLen() uint16

func (*Ext4DirEntry) Size 

func (self *Ext4DirEntry) Size() int

type ExtentEntry 

type ExtentEntry struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func ParseArray_ExtentEntry 

func ParseArray_ExtentEntry(profile *EXT4Profile, reader io.ReaderAt, offset int64, count int) []*ExtentEntry

func (*ExtentEntry) DebugString 

func (self *ExtentEntry) DebugString() string

func (*ExtentEntry) FirstLogicalBlock 

func (self *ExtentEntry) FirstLogicalBlock() uint32

func (*ExtentEntry) Length 

func (self *ExtentEntry) Length() uint16

func (*ExtentEntry) Size 

func (self *ExtentEntry) Size() int

func (*ExtentEntry) StartHi 

func (self *ExtentEntry) StartHi() uint16

func (*ExtentEntry) StartLo 

func (self *ExtentEntry) StartLo() uint32

type ExtentHeader 

type ExtentHeader struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*ExtentHeader) DebugString 

func (self *ExtentHeader) DebugString() string

func (*ExtentHeader) Depth 

func (self *ExtentHeader) Depth() uint16

func (*ExtentHeader) EntryCount 

func (self *ExtentHeader) EntryCount() uint16

func (*ExtentHeader) Generation 

func (self *ExtentHeader) Generation() uint32

func (*ExtentHeader) IndexEntries 

func (self *ExtentHeader) IndexEntries() []*ExtentIndex

func (*ExtentHeader) LeafEntries 

func (self *ExtentHeader) LeafEntries() []*ExtentEntry

func (*ExtentHeader) Magic 

func (self *ExtentHeader) Magic() uint16

func (*ExtentHeader) Max 

func (self *ExtentHeader) Max() uint16

func (*ExtentHeader) Size 

func (self *ExtentHeader) Size() int

type ExtentIndex 

type ExtentIndex struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func ParseArray_ExtentIndex 

func ParseArray_ExtentIndex(profile *EXT4Profile, reader io.ReaderAt, offset int64, count int) []*ExtentIndex

func (*ExtentIndex) DebugString 

func (self *ExtentIndex) DebugString() string

func (*ExtentIndex) FirstLogicalBlock 

func (self *ExtentIndex) FirstLogicalBlock() uint32

func (*ExtentIndex) LeafHi 

func (self *ExtentIndex) LeafHi() uint16

func (*ExtentIndex) LeafLo 

func (self *ExtentIndex) LeafLo() uint32

func (*ExtentIndex) Size 

func (self *ExtentIndex) Size() int

type ExtentReader 

type ExtentReader struct {
	Reader io.ReaderAt
	Size   int64

	Runs []Run
}

func (*ExtentReader) ReadAt 

func (self *ExtentReader) ReadAt(buf []byte, offset int64) (int, error)

type FileInfo 

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

func (*FileInfo) Atime 

func (self *FileInfo) Atime() time.Time

func (*FileInfo) Btime 

func (self *FileInfo) Btime() time.Time

func (*FileInfo) Components 

func (self *FileInfo) Components() []string

func (*FileInfo) Ctime 

func (self *FileInfo) Ctime() time.Time

func (*FileInfo) Dict 

func (self *FileInfo) Dict() *ordereddict.Dict

func (*FileInfo) Flags 

func (self *FileInfo) Flags() []string

func (*FileInfo) FullPath 

func (self *FileInfo) FullPath() string

func (*FileInfo) Gid 

func (self *FileInfo) Gid() int64

func (*FileInfo) Inode 

func (self *FileInfo) Inode() int64

func (*FileInfo) MarshalJSON 

func (self *FileInfo) MarshalJSON() ([]byte, error)

func (*FileInfo) ModTime 

func (self *FileInfo) ModTime() time.Time

func (*FileInfo) Mode 

func (self *FileInfo) Mode() fs.FileMode

func (*FileInfo) Mtime 

func (self *FileInfo) Mtime() time.Time

func (*FileInfo) Name 

func (self *FileInfo) Name() string

func (*FileInfo) Size 

func (self *FileInfo) Size() int64

func (*FileInfo) Uid 

func (self *FileInfo) Uid() int64

type Flags 

type Flags struct {
	Value uint64
	Names map[string]bool
}

func (Flags) DebugString 

func (self Flags) DebugString() string

func (Flags) IsSet 

func (self Flags) IsSet(flag string) bool

func (Flags) Values 

func (self Flags) Values() []string

type Flusher 

type Flusher interface {
	Flush()
}

Invalidate the disk cache

type FreeList 

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

Keep pages in a free list to avoid allocations.

func (*FreeList) Get 

func (self *FreeList) Get() []byte

func (*FreeList) Put 

func (self *FreeList) Put(in []byte)

type GroupDescriptor 

type GroupDescriptor struct {
	BlockBitmap int64
	InodeBitmap int64
	InodeTable  int64
}

func NewGroupDescriptor32 

func NewGroupDescriptor32(gd *GroupDescriptor32) *GroupDescriptor

func NewGroupDescriptor64 

func NewGroupDescriptor64(gd *GroupDescriptor64) *GroupDescriptor

type GroupDescriptor32 

type GroupDescriptor32 struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func ParseArray_GroupDescriptor32 

func ParseArray_GroupDescriptor32(profile *EXT4Profile, reader io.ReaderAt, offset int64, count int) []*GroupDescriptor32

func (*GroupDescriptor32) BlockBitmapLo 

func (self *GroupDescriptor32) BlockBitmapLo() uint32

func (*GroupDescriptor32) DebugString 

func (self *GroupDescriptor32) DebugString() string

func (*GroupDescriptor32) InodeBitmapLo 

func (self *GroupDescriptor32) InodeBitmapLo() uint32

func (*GroupDescriptor32) InodeTableLo 

func (self *GroupDescriptor32) InodeTableLo() uint32

func (*GroupDescriptor32) Size 

func (self *GroupDescriptor32) Size() int

type GroupDescriptor32_ 

type GroupDescriptor32_ struct {
	BlockBitmapLo     uint32 `struc:"uint32,little"`
	InodeBitmapLo     uint32 `struc:"uint32,little"`
	InodeTableLo      uint32 `struc:"uint32,little"`
	FreeBlocksCountLo uint16 `struc:"uint16,little"`
	FreeInodesCountLo uint16 `struc:"uint16,little"`
	UsedDirsCountLo   uint16 `struc:"uint16,little"`
	Flags             uint16 `struc:"uint16,little"`
	ExcludeBitmapLo   uint32 `struc:"uint32,little"`
	BlockBitmapCsumLo uint16 `struc:"uint16,little"`
	InodeBitmapCsumLo uint16 `struc:"uint16,little"`
	ItableUnusedLo    uint16 `struc:"uint16,little"`
	Checksum          uint16 `struc:"uint16,little"`
}

GroupDescriptor32 is 32 byte

type GroupDescriptor64 

type GroupDescriptor64 struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func ParseArray_GroupDescriptor64 

func ParseArray_GroupDescriptor64(profile *EXT4Profile, reader io.ReaderAt, offset int64, count int) []*GroupDescriptor64

func (*GroupDescriptor64) BlockBitmapHi 

func (self *GroupDescriptor64) BlockBitmapHi() uint32

func (*GroupDescriptor64) BlockBitmapLo 

func (self *GroupDescriptor64) BlockBitmapLo() uint32

func (*GroupDescriptor64) DebugString 

func (self *GroupDescriptor64) DebugString() string

func (*GroupDescriptor64) InodeBitmapHi 

func (self *GroupDescriptor64) InodeBitmapHi() uint32

func (*GroupDescriptor64) InodeBitmapLo 

func (self *GroupDescriptor64) InodeBitmapLo() uint32

func (*GroupDescriptor64) InodeTableHi 

func (self *GroupDescriptor64) InodeTableHi() uint32

func (*GroupDescriptor64) InodeTableLo 

func (self *GroupDescriptor64) InodeTableLo() uint32

func (*GroupDescriptor64) Size 

func (self *GroupDescriptor64) Size() int

type GroupDescriptor64_ 

type GroupDescriptor64_ struct {
	GroupDescriptor32_
	BlockBitmapHi     uint32 `struc:"uint32,little"`
	InodeBitmapHi     uint32 `struc:"uint32,little"`
	InodeTableHi      uint32 `struc:"uint32,little"`
	FreeBlocksCountHi uint16 `struc:"uint16,little"`
	FreeInodesCountHi uint16 `struc:"uint16,little"`
	UsedDirsCountHi   uint16 `struc:"uint16,little"`
	ItableUnusedHi    uint16 `struc:"uint16,little"`
	ExcludeBitmapHi   uint32 `struc:"uint32,little"`
	BlockBitmapCsumHi uint16 `struc:"uint16,little"`
	InodeBitmapCsumHi uint16 `struc:"uint16,little"`
	Reserved          uint32 `struc:"uint32,little"`
}

GroupDescriptor is 64 byte 

type Header struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*Header) DebugString 

func (self *Header) DebugString() string

func (*Header) Size 

func (self *Header) Size() int

func (*Header) Superblock 

func (self *Header) Superblock() *Superblock

type Inode 

type Inode struct {
	*Inode_
	// contains filtered or unexported fields
}

func (*Inode) DataSize 

func (self *Inode) DataSize() int64

func (*Inode) Debug 

func (self *Inode) Debug(ctx *EXT4Context)

func (*Inode) Dir 

func (self *Inode) Dir(ctx *EXT4Context) ([]*FileInfo, error)

List the directory

func (*Inode) GetReader 

func (self *Inode) GetReader(ctx *EXT4Context) (io.ReaderAt, error)

Walk the extents tree and collect the runs

func (*Inode) Inode 

func (self *Inode) Inode() int64

func (*Inode) Runs 

func (self *Inode) Runs(ctx *EXT4Context) []Run

func (*Inode) Stat 

func (self *Inode) Stat() *FileInfo

type InodeData 

type InodeData struct {
	IMode       uint16 /* File mode */
	IUid        uint16 /* Low 16 bits of Owner Uid */
	ISizeLo     uint32 /* Size in bytes */
	IAtime      uint32 /* Access time */
	ICtime      uint32 /* Inode Change time */
	IMtime      uint32 /* Modification time */
	IDtime      uint32 /* Deletion Time */
	IGid        uint16 /* Low 16 bits of Group Id */
	ILinksCount uint16 /* Links count */
	IBlocksLo   uint32 /* Blocks count */
	IFlags      uint32 /* File flags */

	// union {
	//     struct {
	//         __le32  l_i_version;
	//     } linux1;
	//     struct {
	//         __u32  h_i_translator;
	//     } hurd1;
	//     struct {
	//         __u32  m_i_reserved1;
	//     } masix1;
	// } osd1;             /* OS dependent 1 */
	Osd1 [4]byte

	/*
		IBlock is a general buffer for our data, which can have various
		interpretations. `Ext4NBlocks` comes from the kernel where it is a count in
		terms of uint32's, which is then cast as a struct. However, it works better
		for us as an array of bytes.
	*/
	IBlock [15 * 4]byte

	IGeneration uint32 /* File version (for NFS) */
	IFileAclLo  uint32 /* File ACL */
	ISizeHigh   uint32
	IObsoFaddr  uint32 /* Obsoleted fragment address */

	// union {
	//     struct {
	//         __le16  l_i_blocks_high; /* were l_i_reserved1 */
	//         __le16  l_i_file_acl_high;
	//         __le16  l_i_uid_high;   /* these 2 fields */
	//         __le16  l_i_gid_high;   /* were reserved2[0] */
	//         __le16  l_i_checksum_lo;/* crc32c(uuid+inum+inode) LE */
	//         __le16  l_i_reserved;
	//     } linux2;
	//     struct {
	//         __le16  h_i_reserved1;   Obsoleted fragment number/size which are removed in ext4
	//         __u16   h_i_mode_high;
	//         __u16   h_i_uid_high;
	//         __u16   h_i_gid_high;
	//         __u32   h_i_author;
	//     } hurd2;
	//     struct {
	//         __le16  h_i_reserved1;  /* Obsoleted fragment number/size which are removed in ext4 */
	//         __le16  m_i_file_acl_high;
	//         __u32   m_i_reserved2[2];
	//     } masix2;
	// } osd2;             /* OS dependent 2 */
	Osd2 [12]byte

	IExtraIsize  uint16
	IChecksumHi  uint16 /* crc32c(uuid+inum+inode) BE */
	ICtimeExtra  uint32 /* extra Change time      (nsec << 2 | epoch) */
	IMtimeExtra  uint32 /* extra Modification time(nsec << 2 | epoch) */
	IAtimeExtra  uint32 /* extra Access time      (nsec << 2 | epoch) */
	ICrtime      uint32 /* File Creation time */
	ICrtimeExtra uint32 /* extra FileCreationtime (nsec << 2 | epoch) */
	IVersionHi   uint32 /* high 32 bits for 64-bit version */
	IProjid      uint32 /* Project ID */
}

type Inode_ 

type Inode_ struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*Inode_) Atime 

func (self *Inode_) Atime() uint32

func (*Inode_) AtimeExtra 

func (self *Inode_) AtimeExtra() uint32

func (*Inode_) BlockPointers 

func (self *Inode_) BlockPointers() string

func (*Inode_) BlocksLo 

func (self *Inode_) BlocksLo() uint32

func (*Inode_) CRtime 

func (self *Inode_) CRtime() uint32

func (*Inode_) CRtimeExtra 

func (self *Inode_) CRtimeExtra() uint32

func (*Inode_) Ctime 

func (self *Inode_) Ctime() uint32

func (*Inode_) CtimeExtra 

func (self *Inode_) CtimeExtra() uint32

func (*Inode_) DebugString 

func (self *Inode_) DebugString() string

func (*Inode_) Dtime 

func (self *Inode_) Dtime() uint32

func (*Inode_) Flags 

func (self *Inode_) Flags() *Flags

func (*Inode_) Gid 

func (self *Inode_) Gid() uint16

func (*Inode_) GidHi 

func (self *Inode_) GidHi() uint16

func (*Inode_) LinksCount 

func (self *Inode_) LinksCount() uint32

func (*Inode_) Mode 

func (self *Inode_) Mode() uint16

func (*Inode_) Mtime 

func (self *Inode_) Mtime() uint32

func (*Inode_) MtimeExtra 

func (self *Inode_) MtimeExtra() uint32

func (*Inode_) Size 

func (self *Inode_) Size() int

func (*Inode_) SizeHi 

func (self *Inode_) SizeHi() uint32

func (*Inode_) SizeLo 

func (self *Inode_) SizeLo() uint32

func (*Inode_) Uid 

func (self *Inode_) Uid() uint16

func (*Inode_) UidHi 

func (self *Inode_) UidHi() uint16

type LRU 

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

LRU implements a thread safe fixed size LRU cache

func NewLRU 

func NewLRU(size int, onEvict EvictCallback, name string) (*LRU, error)

NewLRU constructs an LRU of the given size

func (*LRU) Add 

func (self *LRU) Add(key int, value interface{}) (evicted bool)

Add adds a value to the cache. Returns true if an eviction occurred.

func (*LRU) Contains 

func (self *LRU) Contains(key int) (ok bool)

Contains checks if a key is in the cache, without updating the recent-ness or deleting it for being stale.

func (*LRU) DebugString 

func (self *LRU) DebugString() string

func (*LRU) Get 

func (self *LRU) Get(key int) (value interface{}, ok bool)

Get looks up a key's value from the cache.

func (*LRU) GetOldest 

func (self *LRU) GetOldest() (key int, value interface{}, ok bool)

GetOldest returns the oldest entry

func (*LRU) Keys 

func (self *LRU) Keys() []int

Keys returns a slice of the keys in the cache, from oldest to newest.

func (*LRU) Len 

func (self *LRU) Len() int

Len returns the number of items in the cache.

func (*LRU) Peek 

func (self *LRU) Peek(key int) (value interface{}, ok bool)

Peek returns the key value (or undefined if not found) without updating the "recently used"-ness of the key.

func (*LRU) Purge 

func (self *LRU) Purge()

Purge is used to completely clear the cache.

func (*LRU) Remove 

func (self *LRU) Remove(key int) (present bool)

Remove removes the provided key from the cache, returning if the key was contained.

func (*LRU) RemoveOldest 

func (self *LRU) RemoveOldest() (key int, value interface{}, ok bool)

RemoveOldest removes the oldest item from the cache.

func (*LRU) Touch 

func (self *LRU) Touch(key int)

type Misc 

type Misc struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*Misc) DebugString 

func (self *Misc) DebugString() string

func (*Misc) GD32 

func (self *Misc) GD32() []*GroupDescriptor32

func (*Misc) GD64 

func (self *Misc) GD64() []*GroupDescriptor64

func (*Misc) Size 

func (self *Misc) Size() int

type PagedReader 

type PagedReader struct {
	Hits int64
	Miss int64
	// contains filtered or unexported fields
}

func NewPagedReader 

func NewPagedReader(reader io.ReaderAt, pagesize int64, cache_size int) (*PagedReader, error)

func (*PagedReader) Flush 

func (self *PagedReader) Flush()

func (*PagedReader) ReadAt 

func (self *PagedReader) ReadAt(buf []byte, offset int64) (int, error)

func (*PagedReader) SetSize 

func (self *PagedReader) SetSize(size int64)

type Run 

type Run struct {
	FileOffset int64
	DiskOffset int64
	Length     int64
}

type Superblock 

type Superblock struct {
	Reader  io.ReaderAt
	Offset  int64
	Profile *EXT4Profile
}

func (*Superblock) BlockCountHi 

func (self *Superblock) BlockCountHi() uint32

func (*Superblock) BlockCountLo 

func (self *Superblock) BlockCountLo() uint32

func (*Superblock) BlockPerGroup 

func (self *Superblock) BlockPerGroup() uint32

func (*Superblock) DebugString 

func (self *Superblock) DebugString() string

func (*Superblock) FeatureCompat 

func (self *Superblock) FeatureCompat() uint32

func (*Superblock) FeatureIncompat 

func (self *Superblock) FeatureIncompat() *Flags

func (*Superblock) FirstDataBlock 

func (self *Superblock) FirstDataBlock() uint32

func (*Superblock) InodeCount 

func (self *Superblock) InodeCount() uint32

func (*Superblock) InodePerGroup 

func (self *Superblock) InodePerGroup() uint32

func (*Superblock) InodeSize 

func (self *Superblock) InodeSize() uint16

func (*Superblock) LogBlockSize 

func (self *Superblock) LogBlockSize() uint32

func (*Superblock) LogGroupPerFlex 

func (self *Superblock) LogGroupPerFlex() byte

func (*Superblock) Magic 

func (self *Superblock) Magic() uint16

func (*Superblock) Size 

func (self *Superblock) Size() int

type SuperblockStruct 

type SuperblockStruct struct {
	InodeCount           uint32     `struc:"uint32,little"`
	BlockCountLo         uint32     `struc:"uint32,little"`
	RBlockCountLo        uint32     `struc:"uint32,little"`
	FreeBlockCountLo     uint32     `struc:"uint32,little"`
	FreeInodeCount       uint32     `struc:"uint32,little"`
	FirstDataBlock       uint32     `struc:"uint32,little"`
	LogBlockSize         uint32     `struc:"uint32,little"`
	LogClusterSize       uint32     `struc:"uint32,little"`
	BlockPerGroup        uint32     `struc:"uint32,little"`
	ClusterPerGroup      uint32     `struc:"uint32,little"` // 10
	InodePerGroup        uint32     `struc:"uint32,little"`
	Mtime                uint32     `struc:"uint32,little"`
	Wtime                uint32     `struc:"uint32,little"`
	MntCount             uint16     `struc:"uint16,little"`
	MaxMntCount          uint16     `struc:"uint16,little"`
	Magic                uint16     `struc:"uint16,little"`
	State                uint16     `struc:"uint16,little"`
	Errors               uint16     `struc:"uint16,little"`
	MinorRevLevel        uint16     `struc:"uint16,little"`
	Lastcheck            uint32     `struc:"uint32,little"`
	Checkinterval        uint32     `struc:"uint32,little"`
	CreatorOs            uint32     `struc:"uint32,little"`
	RevLevel             uint32     `struc:"uint32,little"` // 20
	DefResuid            uint16     `struc:"uint16,little"`
	DefResgid            uint16     `struc:"uint16,little"`
	FirstIno             uint32     `struc:"uint32,little"`
	InodeSize            uint16     `struc:"uint16,little"`
	BlockGroupNr         uint16     `struc:"uint16,little"`
	FeatureCompat        uint32     `struc:"uint32,little"`
	FeatureIncompat      uint32     `struc:"uint32,little"`
	FeatureRoCompat      uint32     `struc:"uint32,little"`
	UUID                 [16]byte   `struc:"[16]byte"` // 30
	VolumeName           [16]byte   `struc:"[16]byte"`
	LastMounted          [64]byte   `struc:"[64]byte"` // 42
	AlgorithmUsageBitmap uint32     `struc:"uint32,little"`
	PreallocBlocks       byte       `struc:"byte"`
	PreallocDirBlocks    byte       `struc:"byte"`
	ReservedGdtBlocks    uint16     `struc:"uint16,little"`
	JournalUUID          [16]byte   `struc:"[16]byte"`
	JournalInum          uint32     `struc:"uint32,little"`
	JournalDev           uint32     `struc:"uint32,little"` // 50
	LastOrphan           uint32     `struc:"uint32,little"`
	HashSeed             [4]uint32  `struc:"[4]uint32,little"`
	DefHashVersion       byte       `struc:"byte"`
	JnlBackupType        byte       `struc:"byte"`
	DescSize             uint16     `struc:"uint16,little"`
	DefaultMountOpts     uint32     `struc:"uint32,little"`
	FirstMetaBg          uint32     `struc:"uint32,little"`
	MkfTime              uint32     `struc:"uint32,little"` // 59
	JnlBlocks            [17]uint32 `struc:"[17]uint32,little"`
	BlockCountHi         uint32     `struc:"uint32,little"`
	RBlockCountHi        uint32     `struc:"uint32,little"`
	FreeBlockCountHi     uint32     `struc:"uint32,little"`
	MinExtraIsize        uint16     `struc:"uint16,little"`
	WantExtraIsize       uint16     `struc:"uint16,little"` // 80
	Flags                uint32     `struc:"uint32,little"`
	RaidStride           uint16     `struc:"uint16,little"`
	MmpUpdateInterval    uint16     `struc:"uint16,little"`
	MmpBlock             uint64     `struc:"uint64,little"`
	RaidStripeWidth      uint32     `struc:"uint32,little"` // 85
	LogGroupPerFlex      byte       `struc:"byte"`
	ChecksumType         byte       `struc:"byte"`
	EncryptionLevel      byte       `struc:"byte"`
	ReservedPad          byte       `struc:"byte"`
	KbyteWritten         uint64     `struc:"uint64,little"`
	SnapshotInum         uint32     `struc:"uint32,little"`
	SnapshotID           uint32     `struc:"uint32,little"` // 90
	SnapshotRBlockCount  uint64     `struc:"uint64,little"`
	SnapshotList         uint32     `struc:"uint32,little"`
	ErrorCount           uint32     `struc:"uint32,little"`
	FirstErrorTime       uint32     `struc:"uint32,little"`
	FirstErrorIno        uint32     `struc:"uint32,little"`
	FirstErrorBlock      uint64     `struc:"uint64,little"` // 98
	FirstErrorFunc       [32]byte   `struc:"[32]pad"`
	FirstErrorLine       uint32     `struc:"uint32,little"`
	LastErrorTime        uint32     `struc:"uint32,little"` // 108
	LastErrorIno         uint32     `struc:"uint32,little"`
	LastErrorLine        uint32     `struc:"uint32,little"`
	LastErrorBlock       uint64     `struc:"uint64,little"` // 112
	LastErrorFunc        [32]byte   `struc:"[32]pad"`
	MountOpts            [64]byte   `struc:"[64]pad"` // 136
	UsrQuotaInum         uint32     `struc:"uint32,little"`
	GrpQuotaInum         uint32     `struc:"uint32,little"`
	OverheadClusters     uint32     `struc:"uint32,little"`
	BackupBgs            [2]uint32  `struc:"[2]uint32,little"`
	EncryptAlgos         [4]byte    `struc:"[4]pad"`
	EncryptPwSalt        [16]byte   `struc:"[16]pad"` // 146
	LpfIno               uint32     `struc:"uint32,little"`
	PrjQuotaInum         uint32     `struc:"uint32,little"`
	ChecksumSeed         uint32     `struc:"uint32,little"`
	Reserved             [98]uint32 `struc:"[98]uint32,little"`
	Checksum             uint32     `struc:"uint32,little"`
}

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.