queue

The goal of queue is to provide a simple on-disk queue data structure in R.

Installation

You can install queue from github with:

# install.packages("remotes")
remotes::install_github("rdpeng/queue")

Example

This is a basic example which shows you how to solve a common problem:

library(queue)
x <- create_queue("myqueue")
is_empty(x)
#> [1] TRUE

## Queue up some items
enqueue(x, 1)
enqueue(x, 2)

## Look at the head of the queue
peek(x)
#> [1] 1

## Retrieve some items
dequeue(x)
#> [1] 1
dequeue(x)
#> [1] 2

is_empty(x)
#> [1] TRUE
delete_queue(x)