在.NET应用程序中检测重定向控制台输出中的已关闭管道,可以通过以下方法实现:
Process
类创建一个新的进程,并重定向输出和错误输出。StreamReader
类读取输出和错误输出。Task
类异步读取输出和错误输出。CancellationToken
类监测管道是否关闭。以下是一个示例代码:
using System;
using System.Diagnostics;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
class Program
{
static async Task Main(string[] args)
{
var process = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = "your_command_here",
Arguments = "your_arguments_here",
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = true
}
};
var cancellationTokenSource = new CancellationTokenSource();
var outputTask = ReadStreamAsync(process.StandardOutput, cancellationTokenSource.Token);
var errorTask = ReadStreamAsync(process.StandardError, cancellationTokenSource.Token);
process.Start();
await Task.WhenAll(outputTask, errorTask);
process.WaitForExit();
Console.WriteLine("Process exited with code: {0}", process.ExitCode);
}
static async Task ReadStreamAsync(StreamReader streamReader, CancellationToken cancellationToken)
{
try
{
while (!streamReader.EndOfStream)
{
cancellationToken.ThrowIfCancellationRequested();
string line = await streamReader.ReadLineAsync();
Console.WriteLine(line);
}
}
catch (OperationCanceledException)
{
Console.WriteLine("Stream reading cancelled.");
}
}
}
在这个示例中,我们创建了一个新的进程,并重定向了输出和错误输出。然后,我们使用ReadStreamAsync
方法异步读取输出和错误输出。在ReadStreamAsync
方法中,我们使用cancellationToken.ThrowIfCancellationRequested()
方法检测管道是否关闭,如果管道已关闭,则抛出OperationCanceledException
异常。最后,我们在主方法中等待所有任务完成,并等待进程退出。
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