View Source TimeQueue
This library implements a pure functional queue of timers that is persistable as a simple erlang term. No processes or Erlang timers are used.
use-case
Use case
- When you need to attach timers to a persistent data structure (ecto schemas, persistent GenServers, …), for example in a board game.
- When you need to publish timers over an API (JSON, XML, …).
changelog
Changelog
Please see the changelog on Github (master branch).
installation
Installation
def deps do
[
{:time_queue, "~> 0.9"}
]
end
basic-usage
Basic Usage
tq = TimeQueue.new()
{:ok, tref, tq} = TimeQueue.enqueue(tq, {500, :ms}, :myval)
{:delay, ^tref, _delay} = TimeQueue.peek(tq)
{:delay, ^tref, _delay} = TimeQueue.pop(tq)
Process.sleep(delay)
# PEEK
{:ok, entry} = TimeQueue.peek(tq)
:myval = TimeQueue.value(entry)
# POP
{:ok, entry, tq} = TimeQueue.pop(tq)
:myval = TimeQueue.value(entry)
:empty = TimeQueue.pop(tq)