lib/pthreads/examples/threaded_example.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2015 Romain Chanoir <romain.chanoir@viacesi.fr>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # test for threaded annotation
  18 module threaded_example is example
  19
  20 import pthreads
  21
  22 # the `is threaded` annotation makes this method run on an other thread
  23 fun foo is threaded do
  24         sys.nanosleep(1,0)
  25         print "threaded"
  26 end
  27
  28 # Parameterized `threaded` method, same as foo, but with parameters
  29 fun bar(i : Int, s : String) is threaded do
  30         sys.nanosleep(2, 0)
  31         print i
  32         print s
  33 end
  34
  35 # Parameterized `threaded` method with a return type
  36 fun baz(i : Int, j : Int): Int is threaded do
  37         sys.nanosleep(10, 0)
  38         return i + j
  39 end
  40
  41 print "main"
  42 foo
  43 bar(10, "parameterized and threaded")
  44 sys.nanosleep(5,0)
  45 var x  = baz(2, 3)
  46 print "main, waiting for baz"
  47 var y = x.join
  48 print("baz result : " + y.to_s)