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Monthly Downloads: 183,674
Programming language: Elixir
License: MIT License
Latest version: v1.0.6

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README

ParallelStream Build Status Coverage Status Inline docs Hex pm Downloads

Parallelized stream implementation for elixir

What does it do?

Parallelize some stream operations in Elixir whilst keeping your stream in order. Operates with a worker pool.

How do I get it?

Add

{:parallel_stream, "~> 1.0.5"}

to your deps in mix.exs like so:

defp deps do
  [
    {:parallel_stream, "~> 1.0.5"}
  ]
end

Note: Elixir 1.1.0 is required

How to use

Do this to parallelize a map:

stream = 1..10 |> ParallelStream.map(fn i -> i * 2 end)
stream |> Enum.into([])
[2,4,6,8,10,12,14,16,18,20]

The generated stream is sorted the same as the input stream.

More supported functions are each (to produce side-effects):

1..100 |> ParallelStream.each(&IO.inspect/1)

filter:

stream = 1..20 |> ParallelStream.filter(fn i -> i |> rem(2) == 0 end)
stream |> Enum.into([])
[2,4,6,8,10,12,14,16,18,20]

and filter's counterpart, reject:

stream = 1..20 |> ParallelStream.reject(fn i -> i |> rem(2) == 0 end)
stream |> Enum.into([])
[1,3,5,7,9,11,13,15,17,19]

License

MIT

Contributions & Bugfixes are most welcome!


*Note that all licence references and agreements mentioned in the parallel_stream README section above are relevant to that project's source code only.