logview

package

v0.11.1-beta.3 Latest Latest Go to latest Published: Feb 24, 2025 License: Apache-2.0 Imports: 5 Imported by: 0

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const BufSize = 256 * 1024

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const MaxLineSize = 1024

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var ErrBOF = errors.New("beginning of file")

This section is empty.

type LinePtr struct {
	Offset      int64
	RealLineNum int64
	LineNum     int64
}

type LogView struct {
	File     *os.File
	MultiBuf *MultiBufferByteGetter
	MatchRe  *regexp.Regexp
}

func MakeLogView(file *os.File) *LogView

func (lv *LogView) Close()

func (lv *LogView) FirstLinePtr() (*LinePtr, error)

func (lv *LogView) LastLinePtr(linePtr *LinePtr) (*LinePtr, error)

func (lv *LogView) Move(linePtr *LinePtr, offset int) (int, *LinePtr, error)

func (lv *LogView) NextLinePtr(linePtr *LinePtr) (*LinePtr, error)

func (lv *LogView) PrevLinePtr(linePtr *LinePtr) (*LinePtr, error)

func (lv *LogView) ReadLineData(linePtr *LinePtr) ([]byte, error)

func (lv *LogView) ReadWindow(linePtr *LinePtr, winSize int) ([][]byte, error)

type MultiBufferByteGetter struct {
	File    *os.File
	Offset  int64
	EOF     bool
	Buffers [][]byte
	BufSize int64
}

func MakeMultiBufferByteGetter(file *os.File, bufSize int64) *MultiBufferByteGetter

func (mb *MultiBufferByteGetter) GetByte(offset int64) (byte, error)

func (mb *MultiBufferByteGetter) NextLine(offset int64) (int64, error)

func (mb *MultiBufferByteGetter) PrevLine(offset int64) (int64, error)