本文整理汇总了C#中System.Collections.Concurrent.ConcurrentStack<T>类的典型用法代码示例。如果您正苦于以下问题：C# ConcurrentStack<T>类的具体用法？C# ConcurrentStack<T>怎么用？C# ConcurrentStack<T>使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ConcurrentStack<T>类属于System.Collections.Concurrent命名空间，在下文中一共展示了ConcurrentStack<T>类的2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: Main
//引入命名空间
using System;
using System.Collections.Concurrent;
using System.Threading.Tasks;
class Example
{
// Demonstrates:
// ConcurrentStack<T>.Push();
// ConcurrentStack<T>.TryPeek();
// ConcurrentStack<T>.TryPop();
// ConcurrentStack<T>.Clear();
// ConcurrentStack<T>.IsEmpty;
static async Task Main()
{
int items = 10000;
ConcurrentStack<int> stack = new ConcurrentStack<int>();
// Create an action to push items onto the stack
Action pusher = () =>
{
for (int i = 0; i < items; i++)
{
stack.Push(i);
}
};
// Run the action once
pusher();
if (stack.TryPeek(out int result))
{
Console.WriteLine($"TryPeek() saw {result} on top of the stack.");
}
else
{
Console.WriteLine("Could not peek most recently added number.");
}
// Empty the stack
stack.Clear();
if (stack.IsEmpty)
{
Console.WriteLine("Cleared the stack.");
}
// Create an action to push and pop items
Action pushAndPop = () =>
{
Console.WriteLine($"Task started on {Task.CurrentId}");
int item;
for (int i = 0; i < items; i++)
stack.Push(i);
for (int i = 0; i < items; i++)
stack.TryPop(out item);
Console.WriteLine($"Task ended on {Task.CurrentId}");
};
// Spin up five concurrent tasks of the action
var tasks = new Task[5];
for (int i = 0; i < tasks.Length; i++)
tasks[i] = Task.Factory.StartNew(pushAndPop);
// Wait for all the tasks to finish up
await Task.WhenAll(tasks);
if (!stack.IsEmpty)
{
Console.WriteLine("Did not take all the items off the stack");
}
}
}示例2: Main
//引入命名空间
using System;
using System.Collections.Concurrent;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
class Example
{
// Demonstrates:
// ConcurrentStack<T>.PushRange();
// ConcurrentStack<T>.TryPopRange();
static async Task Main()
{
int numParallelTasks = 4;
int numItems = 1000;
var stack = new ConcurrentStack<int>();
// Push a range of values onto the stack concurrently
await Task.WhenAll(Enumerable.Range(0, numParallelTasks).Select(i => Task.Factory.StartNew((state) =>
{
// state = i * numItems
int index = (int)state;
int[] array = new int[numItems];
for (int j = 0; j < numItems; j++)
{
array[j] = index + j;
}
Console.WriteLine($"Pushing an array of ints from {array[0]} to {array[numItems - 1]}");
stack.PushRange(array);
}, i * numItems, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default)).ToArray());
int numTotalElements = 4 * numItems;
int[] resultBuffer = new int[numTotalElements];
await Task.WhenAll(Enumerable.Range(0, numParallelTasks).Select(i => Task.Factory.StartNew(obj =>
{
int index = (int)obj;
int result = stack.TryPopRange(resultBuffer, index, numItems);
Console.WriteLine($"TryPopRange expected {numItems}, got {result}.");
}, i * numItems, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default)).ToArray());
for (int i = 0; i < numParallelTasks; i++)
{
// Create a sequence we expect to see from the stack taking the last number of the range we inserted
var expected = Enumerable.Range(resultBuffer[i*numItems + numItems - 1], numItems);
// Take the range we inserted, reverse it, and compare to the expected sequence
var areEqual = expected.SequenceEqual(resultBuffer.Skip(i * numItems).Take(numItems).Reverse());
if (areEqual)
{
Console.WriteLine($"Expected a range of {expected.First()} to {expected.Last()}. Got {resultBuffer[i * numItems + numItems - 1]} to {resultBuffer[i * numItems]}");
}
else
{
Console.WriteLine($"Unexpected consecutive ranges.");
}
}
}
}