4 // Copyright (c) 2008 Jérémie "Garuma" Laval
6 // Permission is hereby granted, free of charge, to any person obtaining a copy
7 // of this software and associated documentation files (the "Software"), to deal
8 // in the Software without restriction, including without limitation the rights
9 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 // copies of the Software, and to permit persons to whom the Software is
11 // furnished to do so, subject to the following conditions:
13 // The above copyright notice and this permission notice shall be included in
14 // all copies or substantial portions of the Software.
16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 using System.Threading;
28 using System.Collections.Concurrent;
30 namespace MonoTests.System.Linq
32 public static class ParallelTestHelper
37 const int NumRun = 11;
40 public static void Repeat (Action action)
42 Repeat (action, NumRun);
45 public static void Repeat (Action action, int numRun)
47 for (int i = 0; i < numRun; i++) {
48 //Console.WriteLine ("Run " + i.ToString ());
53 public static void ParallelStressTest<TSource>(TSource obj, Action<TSource> action)
55 ParallelStressTest(obj, action, Environment.ProcessorCount + 2);
58 public static void ParallelStressTest<TSource>(TSource obj, Action<TSource> action, int numThread)
60 Thread[] threads = new Thread[numThread];
61 for (int i = 0; i < numThread; i++) {
62 threads[i] = new Thread(new ThreadStart(delegate { action(obj); }));
66 // Wait for the completion
67 for (int i = 0; i < numThread; i++)
71 public static void ParallelAdder(IProducerConsumerCollection<int> collection, int numThread)
74 ParallelTestHelper.ParallelStressTest(collection, delegate (IProducerConsumerCollection<int> c) {
75 int start = Interlocked.Add(ref startIndex, 10);
76 for (int i = start; i < start + 10; i++) {
82 public static void ParallelRemover(IProducerConsumerCollection<int> collection, int numThread, int times)
85 ParallelTestHelper.ParallelStressTest(collection, delegate (IProducerConsumerCollection<int> c) {
86 int num = Interlocked.Increment(ref t);
89 c.TryTake (out value);