syncbuffer

package
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Published: Apr 18, 2024 License: Apache-2.0 Imports: 9 Imported by: 0

Documentation

Overview

Package syncbuffer provides a goroutine safe bytes.Buffer as well printing functionality to the terminal.

Package syncbuffer provides a goroutine safe bytes.Buffer as well printing functionality to the terminal.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type FileWriter

type FileWriter interface {
	io.Writer
	Fd() uintptr
}

FileWriter is the interface to write to a file.

type LabeledSyncBuffer

type LabeledSyncBuffer struct {
	*SyncBuffer
	// contains filtered or unexported fields
}

LabeledSyncBuffer is a struct that combines a SyncBuffer with a string label.

type LabeledTermPrinter

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

LabeledTermPrinter is a printer to display label and logs to the terminal.

func NewLabeledTermPrinter

func NewLabeledTermPrinter(fw FileWriter, bufs []*LabeledSyncBuffer, opts ...LabeledTermPrinterOption) *LabeledTermPrinter

NewLabeledTermPrinter returns a LabeledTermPrinter that can print to the terminal filewriter from buffers.

func (*LabeledTermPrinter) IsDone

func (ltp *LabeledTermPrinter) IsDone() bool

IsDone returns true if all the buffers are done.

func (*LabeledTermPrinter) Print

func (ltp *LabeledTermPrinter) Print()

Print prints the label and the last N lines of logs from each buffer to the LabeledTermPrinter fileWriter and erases the previous output. If numLines is -1 then print all the values from buffers.

type LabeledTermPrinterOption

type LabeledTermPrinterOption func(ltp *LabeledTermPrinter)

LabeledTermPrinterOption is a type alias to configure LabeledTermPrinter.

func WithNumLines

func WithNumLines(n int) LabeledTermPrinterOption

WithNumLines sets the numlines of LabeledTermPrinter.

func WithPadding

func WithPadding(n int) LabeledTermPrinterOption

WithPadding sets the padding of LabeledTermPrinter.

type SyncBuffer

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

SyncBuffer is a synchronized buffer that can be used to store output data and coordinate between multiple goroutines.

func New

func New() *SyncBuffer

New creates and returns a new SyncBuffer object with an initialized 'done' channel.

func (*SyncBuffer) Copy

func (buf *SyncBuffer) Copy(r io.Reader) error

Copy reads all the content of an io.Reader into a SyncBuffer and an error if copy is failed.

func (*SyncBuffer) IsDone

func (b *SyncBuffer) IsDone() bool

IsDone returns true if the Done channel has been closed, otherwise return false.

func (*SyncBuffer) MarkDone

func (b *SyncBuffer) MarkDone()

MarkDone closes the Done channel.

func (*SyncBuffer) WithLabel

func (buf *SyncBuffer) WithLabel(label string) *LabeledSyncBuffer

WithLabel creates and returns a new LabeledSyncBuffer with the given label and SyncBuffer.

func (*SyncBuffer) Write

func (b *SyncBuffer) Write(p []byte) (n int, err error)

Write appends the given bytes to the buffer.

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