3 // Copyright (c) 2008 Jérémie "Garuma" Laval
5 // Permission is hereby granted, free of charge, to any person obtaining a copy
6 // of this software and associated documentation files (the "Software"), to deal
7 // in the Software without restriction, including without limitation the rights
8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the Software is
10 // furnished to do so, subject to the following conditions:
12 // The above copyright notice and this permission notice shall be included in
13 // all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 using System.Threading;
27 using System.Collections.Concurrent;
29 namespace MonoTests.System.Threading.Tasks
31 static class ParallelTestHelper
36 const int NumRun = 500;
39 public static void Repeat (Action action)
41 Repeat (action, NumRun);
44 public static void Repeat (Action action, int numRun)
46 for (int i = 0; i < numRun; i++) {
51 public static void ParallelStressTest<TSource>(TSource obj, Action<TSource> action)
53 ParallelStressTest(obj, action, Environment.ProcessorCount + 2);
56 public static void ParallelStressTest<TSource>(TSource obj, Action<TSource> action, int numThread)
58 Thread[] threads = new Thread[numThread];
59 for (int i = 0; i < numThread; i++) {
60 threads[i] = new Thread(new ThreadStart(delegate { action(obj); }));
64 // Wait for the completion
65 for (int i = 0; i < numThread; i++)
69 public static void ParallelAdder(IProducerConsumerCollection<int> collection, int numThread)
72 ParallelTestHelper.ParallelStressTest(collection, delegate (IProducerConsumerCollection<int> c) {
73 int start = Interlocked.Add(ref startIndex, 10);
74 for (int i = start; i < start + 10; i++) {
80 public static void ParallelRemover(IProducerConsumerCollection<int> collection, int numThread, int times)
83 ParallelTestHelper.ParallelStressTest(collection, delegate (IProducerConsumerCollection<int> c) {
84 int num = Interlocked.Increment(ref t);
87 c.TryTake (out value);