本文整理汇总了C#中ConcurrentStack.FirstOrDefault方法的典型用法代码示例。如果您正苦于以下问题：C# ConcurrentStack.FirstOrDefault方法的具体用法？C# ConcurrentStack.FirstOrDefault怎么用？C# ConcurrentStack.FirstOrDefault使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ConcurrentStack的用法示例。
在下文中一共展示了ConcurrentStack.FirstOrDefault方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: verify_bahaviour_for_concurrent_access_under_different_keys
public void verify_bahaviour_for_concurrent_access_under_different_keys()
{
var keys = new[] {"a", "b"};
var counter = new ConcurrentStack<int>(); // value factory threads
var storage = new ConcurrentStack<TestItem>(); // cached items
// first run
var threads = MakeThreads(keys);
threads.ForEach(t => t.Start(new object[] {storage, counter}));
threads.ForEach(t => t.Join());
Assert.Equal(2, counter.Count);
Assert.Equal(2, storage.Count);
Assert.NotSame(storage.First(), storage.Last());
var a = storage.FirstOrDefault(x => x.Id == "a");
var b = storage.FirstOrDefault(x => x.Id == "b");
// cleanups and second run
storage.Clear();
counter.Clear();
threads = MakeThreads(keys);
threads.ForEach(t => t.Start(new object[] {storage, counter}));
threads.ForEach(t => t.Join());
Assert.Equal(0, counter.Count);
Assert.Equal(2, storage.Count);
Assert.NotSame(storage.First(), storage.Last());
var aa = storage.FirstOrDefault(x => x.Id == "a");
var bb = storage.FirstOrDefault(x => x.Id == "b");
Assert.Same(a, aa);
Assert.Same(b, bb);
}