C# Can';线程中断后,不能删除文件
我有点迷路了;我已经尝试了我所知道的一切来做这样的操作,错误仍然存在 我有一个FileProcessor类,它创建一个新线程,执行一些操作,等等;但是,即使在它内部手动调用Dispose()和Thread.Interrupt()时,我似乎也无法在使用后删除这些文件 首先,我在主线程上使用异步方法编写代码;现在,我已经切换到使用此文件处理器执行线程,只是尝试在操作后删除这些文件 我可以删除一个或两个文件,但当它到达第三个文件时,会抛出System.IOEXception 我真的不知道我还能做什么。欢迎您的任何意见。 我正在使用Worker.Join-inside Dispose()并等待线程完成或GC结束它,但这两种情况都没有发生 谢谢 我的代码(尽可能减少) 表格1:C# Can';线程中断后,不能删除文件,c#,multithreading,C#,Multithreading,我有点迷路了;我已经尝试了我所知道的一切来做这样的操作,错误仍然存在 我有一个FileProcessor类,它创建一个新线程,执行一些操作,等等;但是,即使在它内部手动调用Dispose()和Thread.Interrupt()时,我似乎也无法在使用后删除这些文件 首先,我在主线程上使用异步方法编写代码;现在,我已经切换到使用此文件处理器执行线程,只是尝试在操作后删除这些文件 我可以删除一个或两个文件,但当它到达第三个文件时,会抛出System.IOEXception 我真的不知道我还能做什么。
使用System.Collections.Generic;
使用System.Windows.Forms;
命名空间WindowsFormsApp1
{
公共部分类Form1:Form
{
私人bool重启计时器;
私家车;
文件处理器;文件处理器;
文件处理器CIP3toTIFFProcessor;
列出文件;
公共表格1()
{
初始化组件();
TIFFtoXMLProcessor=新文件处理器();
RestartTimer=false;
}
私人空间开始工作()
{
TIFFtoXMLProcessor.EnqueueFileName(@“C:\test\yourtestfile1.txt”);
TIFFtoXMLProcessor.EnqueueFileName(@“C:\test\yourtestfile2.txt”);
TIFFtoXMLProcessor.EnqueueFileName(@“C:\test\yourtestfile3.txt”);
files=新列表(TIFFtoXMLProcessor.fileNamesQueue);
TIFFtoXMLProcessor.eventWaitHandle.Set();
if(TIFFtoXMLProcessor.worker.IsAlive==false)
{
foreach(文件中的var项)
{
System.IO.File.Delete(项目);
}
}
}
}
}
FileProcessor类:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
namespace WindowsFormsApp1
{
class FileProcessor : IDisposable
{
public EventWaitHandle eventWaitHandle { get; private set; }
public Thread worker { get; private set; }
private readonly object locker = new object();
public Queue<string> fileNamesQueue { get; private set; }
public string currConversion { get; private set; }
public bool JobComplete { get; private set; }
private CancellationTokenSource cancelParallelWorker;
public string ColorSeparator { get; private set; }
private readonly TextBox tbStatus;
public string outputFolder { get; private set; }
List<string> filesgoingtorun;
//var AvailableJobsDictionary = new Dictionary<string, List<string>>();
//string nZones, string zWidth, string fzWidth, string lzWidth, string zAreaWidth, string zAreaHeight, double DPI
public FileProcessor()
{
eventWaitHandle = new AutoResetEvent(false);
fileNamesQueue = new Queue<string>();
// Create worker thread
worker = new Thread(Work)
{
IsBackground = true
};
cancelParallelWorker = new CancellationTokenSource();
worker.Start();
}
public void EnqueueFileName(string FileName)
{
// Enqueue the file name
// This statement is secured by lock to prevent other thread to mess with queue while enqueuing file name
lock (locker) fileNamesQueue.Enqueue(FileName);
// Signal worker that file name is enqueued and that it can be processed
//eventWaitHandle.Set();
}
private void Work()
{
List<string> filesToWork = new List<string>();
while (true)
{
string fileName = null;
// Dequeue the file name
lock (locker)
while (fileNamesQueue.Count > 0)
{
fileName = fileNamesQueue.Dequeue();
filesToWork.Add(fileName);
if (fileName == null) return;
}
if (fileNamesQueue.Count == 0 && filesToWork.Count > 0)
{
var tempList = new List<string>(filesToWork);
filesToWork.Clear();
ProcessJob(tempList);
}
}
}
private void ProcessJob(List<string> filesToWork)
{
try
{
JobComplete = true;
switch (currConversion)
{
case "TIF":
{
int j = 0;
foreach (var currJob in filesToWork)
{
//Series of tasks...
j++;
}
eventWaitHandle.WaitOne();
break;
}
}
JobComplete = false;
Dispose();
}
catch (Exception conversionEx)
{
cancelParallelWorker?.Cancel();
}
}
#region IDisposable Members
public void Dispose()
{
// Signal the FileProcessor to exit
EnqueueFileName(null);
// Wait for the FileProcessor's thread to finish
worker.Interrupt();
// Release any OS resources
eventWaitHandle.Close();
}
#endregion
}
}
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用系统文本;
使用系统线程;
使用System.Threading.Tasks;
使用System.Windows.Forms;
使用系统图;
使用System.IO;
命名空间WindowsFormsApp1
{
类文件处理器:IDisposable
{
public EventWaitHandle EventWaitHandle{get;private set;}
公共线程辅助程序{get;private set;}
私有只读对象锁定器=新对象();
公共队列fileNamesQueue{get;private set;}
公共字符串转换{get;private set;}
公共bool作业完成{get;private set;}
私有CancellationTokenSource cancelParallelWorker;
公共字符串颜色分隔符{get;private set;}
私有只读文本框状态;
公共字符串outputFolder{get;private set;}
列出文件目录;
//var AvailableJobsDictionary=新字典();
//字符串nZones、字符串zWidth、字符串fzWidth、字符串lzWidth、字符串zAreaWidth、字符串zAreaHeight、双DPI
公共文件处理器()
{
eventWaitHandle=新的自动重置事件(false);
fileNamesQueue=新队列();
//创建工作线程
worker=新线程(工作)
{
IsBackground=true
};
cancelParallelWorker=新的CancellationTokenSource();
worker.Start();
}
public void排队文件名(字符串文件名)
{
//将文件名排队
//此语句由lock保护,以防止其他线程在对文件名排队时弄乱队列
lock(locker)fileNamesQueue.Enqueue(FileName);
//向worker发送信号,表明文件名已排队,并且可以对其进行处理
//eventWaitHandle.Set();
}
私人工作()
{
List filesToWork=new List();
while(true)
{
字符串文件名=null;
//将文件名出列
锁(储物柜)
而(fileNamesQueue.Count>0)
{
fileName=fileNamesQueue.Dequeue();
filesToWork.Add(文件名);
如果(fileName==null)返回;
}
if(fileNamesQueue.Count==0&&filesToWork.Count>0)
{
var templast=新列表(filesToWork);
filesToWork.Clear();
ProcessJob(圣殿骑士);
}
}
}
私有void ProcessJob(列表文件工作)
{
尝试
{
JobComplete=true;
开关(电流转换)
{
案例“TIF”:
{
int j=0;
foreach(filesToWork中的var currJob)
{
//一系列的任务。。。
j++;
}
eventWaitHandle.WaitOne();
打破
}
}
JobComplete=false;
处置();
}
捕获(异常转换X)
{
cancelParallelWorker?.Cancel();
}
}
#区域IDisposable成员
公共空间处置()
{
//向文件处理器发出退出信号
排队文件名(空);
//等待文件处理器的线程完成
worker.Interrupt();
//释放任何操作系统资源
eventWaitHandle.Close();
}
#端区
}
}
你的代码对于你所做的事情来说是极其复杂的
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
namespace WindowsFormsApp1
{
class FileProcessor : IDisposable
{
public EventWaitHandle eventWaitHandle { get; private set; }
public Thread worker { get; private set; }
private readonly object locker = new object();
public Queue<string> fileNamesQueue { get; private set; }
public string currConversion { get; private set; }
public bool JobComplete { get; private set; }
private CancellationTokenSource cancelParallelWorker;
public string ColorSeparator { get; private set; }
private readonly TextBox tbStatus;
public string outputFolder { get; private set; }
List<string> filesgoingtorun;
//var AvailableJobsDictionary = new Dictionary<string, List<string>>();
//string nZones, string zWidth, string fzWidth, string lzWidth, string zAreaWidth, string zAreaHeight, double DPI
public FileProcessor()
{
eventWaitHandle = new AutoResetEvent(false);
fileNamesQueue = new Queue<string>();
// Create worker thread
worker = new Thread(Work)
{
IsBackground = true
};
cancelParallelWorker = new CancellationTokenSource();
worker.Start();
}
public void EnqueueFileName(string FileName)
{
// Enqueue the file name
// This statement is secured by lock to prevent other thread to mess with queue while enqueuing file name
lock (locker) fileNamesQueue.Enqueue(FileName);
// Signal worker that file name is enqueued and that it can be processed
//eventWaitHandle.Set();
}
private void Work()
{
List<string> filesToWork = new List<string>();
while (true)
{
string fileName = null;
// Dequeue the file name
lock (locker)
while (fileNamesQueue.Count > 0)
{
fileName = fileNamesQueue.Dequeue();
filesToWork.Add(fileName);
if (fileName == null) return;
}
if (fileNamesQueue.Count == 0 && filesToWork.Count > 0)
{
var tempList = new List<string>(filesToWork);
filesToWork.Clear();
ProcessJob(tempList);
}
}
}
private void ProcessJob(List<string> filesToWork)
{
try
{
JobComplete = true;
switch (currConversion)
{
case "TIF":
{
int j = 0;
foreach (var currJob in filesToWork)
{
//Series of tasks...
j++;
}
eventWaitHandle.WaitOne();
break;
}
}
JobComplete = false;
Dispose();
}
catch (Exception conversionEx)
{
cancelParallelWorker?.Cancel();
}
}
#region IDisposable Members
public void Dispose()
{
// Signal the FileProcessor to exit
EnqueueFileName(null);
// Wait for the FileProcessor's thread to finish
worker.Interrupt();
// Release any OS resources
eventWaitHandle.Close();
}
#endregion
}
}
public partial class Form1 : Form
{
private Subject<string> _enqueue = new Subject<string>();
private IDisposable _subscription = null;
public Form1()
{
InitializeComponent();
string ColorSeparator = "42";
int imageRotationNumber = 42;
IObservable<string> query =
from file in _enqueue
from ImageListSorted in Observable.Start(() => ImageBuilder(file, ColorSeparator))
from RotateCMYK in Observable.Start(() => Rotate(ImageListSorted.CMYKmages, imageRotationNumber))
select file;
_subscription = query.Subscribe(f => System.IO.File.Delete(f));
_enqueue.OnNext(@"C:\test\yourtestfile1.txt");
_enqueue.OnNext(@"C:\test\yourtestfile2.txt");
_enqueue.OnNext(@"C:\test\yourtestfile3.txt");
}
private CreateCMYKAndImpositionImageList ImageBuilder(string JobImages, string colorDelimiter)
{
return new CreateCMYKAndImpositionImageList(JobImages, colorDelimiter);
}
private RotateImages Rotate(Dictionary<string, string> imageList, int RotationNumber)
{
return new RotateImages(imageList, RotationNumber);
}
}