lib/pthreads/examples/threadpool_example.nit

   1 # This file is part of NIT (http://www.nitlanguage.org).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #        http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Simple example using threadpool
  16 module threadpool_example
  17
  18 import threadpool
  19
  20 # Task printing "hello world" on standard output
  21 class HWTask
  22         super JoinTask
  23
  24         # Sleeping time
  25         var sec: Int
  26
  27         # id
  28         var id: Int
  29         redef fun main do
  30                 print "Hello from {id}"
  31                 nanosleep(sec, 0)
  32                 print "World from {id}"
  33         end
  34 end
  35
  36 var tp = new ThreadPool
  37 for i in 100.times do
  38         var t = new HWTask(2.rand, i)
  39         tp.execute(t)
  40 end
  41
  42 nanosleep(20,10)