Parallel stuff in Nim

parallel.nim

import threadpool, tables, strutils

const 
  filesArray = ["data1.txt", "data2.txt", "data3.txt"]

proc countWords2(filename: string): CountTableRef[string] =
  result = newCountTable[string]()
  for word in readFile(filename).splitWhitespace():
    result.inc word

proc main() = 
  var tab = newCountTable[string]()
  var results: array[filesArray.len, FlowVar[CountTableRef[string]]]
  for i, f in filesArray:
    results[i] = spawn countWords2(f)
  for i in 0..results.high:
    tab.merge(^results[i])
  echo tab
  tab.sort()
  echo tab.largest

main()