adding example for joinTask

Signed-off-by: BlackMinou <romain.chanoir@viacesi.fr>

diff --git a/lib/pthreads/examples/jointask_example.nit b/lib/pthreads/examples/jointask_example.nit
new file mode 100644 (file)
index 0000000..3d12f6f
--- /dev/null
+++ b/lib/pthreads/examples/jointask_example.nit
@@ -0,0 +1,52 @@
+# This file is part of NIT (http://www.nitlanguage.org).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Simple example of joinable task using threadpool
+module jointask_example
+
+import threadpool
+
+# Task computing a string
+class StringTask
+       super JoinTask
+
+       # Sleeping time
+       var sec: Int
+
+       # result of `self` execution
+       var value: String
+
+       # ID for printing
+       var id: Int
+
+       redef fun main do
+               nanosleep(sec, 0)
+               value += " id: {id}"
+       end
+end
+
+var tp = new ThreadPool
+var t0 = new StringTask(10, "First, long task", 0)
+var tasks = new Array[StringTask]
+for i in 5.times do
+       tasks.add(new StringTask(1, "Small task", i + 1))
+end
+tp.execute(t0)
+for t in tasks do tp.execute(t)
+for t in tasks do
+       t.join
+       print t.value
+end
+t0.join
+print t0.value

diff --git a/tests/sav/jointask_example.res b/tests/sav/jointask_example.res
new file mode 100644 (file)
index 0000000..a0f7bca
--- /dev/null
+++ b/tests/sav/jointask_example.res
@@ -0,0 +1,6 @@
+Small task id: 1
+Small task id: 2
+Small task id: 3
+Small task id: 4
+Small task id: 5
+First, long task id: 0