public static void Main(string[] args)
{
CancellationTokenSource cts = new CancellationTokenSource();
CancellationToken ct = cts.Token;
ResultParallel p = Ex2.processDir("D:\\2ºsemestre\\dumpFiles", 3, ct, (value1, value2) => { });
Console.WriteLine("Number of items processed {0}", p.numberOfFiles);
p.list.ForEach((item) =>
{
Console.WriteLine(item);
});
Console.ReadLine();
}
public static ResultParallel processDir(string dirPath, int numberOfFiles, CancellationToken ctoken, Action <Object, Object> progress)
{
ResultParallel result = new ResultParallel(numberOfFiles);
string[] arr = Directory.GetFiles(dirPath);
ParallelOptions ops = new ParallelOptions {
CancellationToken = ctoken,
MaxDegreeOfParallelism = Environment.ProcessorCount
};
Dictionary <string, long> map = new Dictionary <string, long>();
object _lock = new object();
int countFiles = 0;
Parallel.ForEach(arr, ops, () => new List <FileInfo>(),
(item, loopstate, partial) =>
{
try
{
ctoken.ThrowIfCancellationRequested();
}
catch { }
if (loopstate.ShouldExitCurrentIteration)
{
//... optonally exit this iteration early
return(partial);
}
partial.Add(new FileInfo(item));
return(partial);
},
(partialList) =>
{
lock (_lock)
{
foreach (FileInfo partial in partialList)
{
if (!partial.Exists)
{
continue;
}
countFiles++;
progress.Invoke(countFiles, arr.Length);
map.Add(partial.FullName, partial.Length);
if (result.list.Count < result.list.Capacity)
{
result.list.Add(partial.FullName);
continue;
}
long min = Int64.MaxValue;
string file_sub = null;
foreach (string s in result.list)
{
if (map[s] < min)
{
min = map[s];
file_sub = s;
}
}
if (min < partial.Length)
{
result.list.Remove(file_sub);
result.list.Add(partial.FullName);
}
}
}
});
result.numberOfFiles = countFiles;
return(result);
}
