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Document number: N3534

Date: 2013-03-15

C++ Pipelines

by Adam Berkan, Alasdair Mackintosh

Excerpt:

We propose a C++ pipeline library that allows application programmers to combine simple data transformations into a complete multithreaded data-processing pipeline. Individual transformation functions are isolated from each other, and may be run in parallel. We use a pipe syntax that should be familiar to users of Unix or Microsoft shells.

(pipeline::from(input_queue) |
  bind(grep, "^Error") |
  bind(vgrep, "test@example.com") |
  bind(sed, "'s/^Error:.*Message: //") |
  output_queue).run(&threadpool);

Although not universally applicable, we believe that this approach will simplify the writing of certain classes of data-processing applications.