queue

Documentation

Overview

[nsq]: https://github.com/nsqio/nsq Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

[nsq]: https://github.com/nsqio/nsq

Index

• type BackendQueue
  • func NewDiskQueue(name string, dataPath string, maxBytesPerFile int64, minMsgSize int32, ...) BackendQueue

Types

type BackendQueue

type BackendQueue interface {
	Put([]byte) error
	ReadChan() chan []byte // this is expected to be an *unbuffered* channel
	Close() error
	Delete() error
	Depth() int64
	Empty() error
}

BackendQueue represents the behavior for the secondary message storage system

func NewDiskQueue

func NewDiskQueue(name string, dataPath string, maxBytesPerFile int64,
	minMsgSize int32, maxMsgSize int32,
	syncEvery int64, syncTimeout time.Duration) BackendQueue

newDiskQueue instantiates a new instance of diskQueue, retrieving metadata from the filesystem and starting the read ahead goroutine