filequeue

package

v0.0.0-...-e6c7ec5 Latest Latest Go to latest Published: Sep 21, 2021 License: MIT Imports: 15 Imported by: 0

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Repository

github.com/haraqa/haraqa

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Documentation ¶

Index ¶

type FileQueue
- func New(cacheFiles bool, maxEntries int64, dirs ...string) (*FileQueue, error)
type MultiWriteAtCloser
type WriteAtCloser

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type FileQueue ¶

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

FileQueue implements the haraqa queue by storing messages in log files, under topic based directories

func New ¶

func New(cacheFiles bool, maxEntries int64, dirs ...string) (*FileQueue, error)

New creates a new FileQueue

func (*FileQueue) Close ¶

func (q *FileQueue) Close() error

Close closes the queue cached files

func (*FileQueue) Consume ¶

func (q *FileQueue) Consume(group, topic string, id int64, limit int64, w http.ResponseWriter) (int, error)

Consume copies messages from a log to the writer

func (*FileQueue) CreateTopic ¶

func (q *FileQueue) CreateTopic(topic string) error

CreateTopic creates a new topic if it does not already exist

func (*FileQueue) DeleteTopic ¶

func (q *FileQueue) DeleteTopic(topic string) error

DeleteTopic deletes the topic and any nested topic within

func (*FileQueue) ListTopics ¶

func (q *FileQueue) ListTopics(regex *regexp.Regexp) ([]string, error)

ListTopics returns all of the topic names in the queue

func (*FileQueue) ModifyTopic ¶

func (q *FileQueue) ModifyTopic(topic string, request headers.ModifyRequest) (*headers.TopicInfo, error)

ModifyTopic updates the topic to truncate/remove messages and return the topic offset info

func (*FileQueue) Produce ¶

func (q *FileQueue) Produce(topic string, msgSizes []int64, timestamp uint64, r io.Reader) error

Produce copies messages from the reader into the queue log

func (*FileQueue) RootDir ¶

func (q *FileQueue) RootDir() string

RootDir returns the path to the haraqa queue root directory. This is used to serve the raw files

func (*FileQueue) WatchTopics ¶

func (q *FileQueue) WatchTopics(topics []string) (written, deleted chan string, closer io.Closer, err error)

type MultiWriteAtCloser ¶

type MultiWriteAtCloser []WriteAtCloser

MultiWriteAtCloser provides methods for a slice of WriteAtCloser

func (MultiWriteAtCloser) Close ¶

func (mw MultiWriteAtCloser) Close() error

Close closes all writers in the slice

func (MultiWriteAtCloser) CopyNAt ¶

func (mw MultiWriteAtCloser) CopyNAt(r io.Reader, N, off int64) error

CopyNAt performs a CopyNAt to each of the writers in order

func (MultiWriteAtCloser) WriteAt ¶

func (mw MultiWriteAtCloser) WriteAt(p []byte, off int64) error

WriteAt performs a WriteAt to each of the writers in order

type WriteAtCloser ¶

type WriteAtCloser interface {
	io.Closer
	io.WriterAt
}

WriteAtCloser is a combination of io.Writer and io.Closer, similar to io.WriteCloser

Source Files ¶

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