public static void RunCompression(string srcFile, string dstFile, int degreeOfParallelism)
{
using (var streamSource = new FileStream(srcFile, FileMode.OpenOrCreate, FileAccess.Read, FileShare.None, 0x1000, useAsync: true))
using (var streamDestination = new FileStream(dstFile, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, 0x1000, useAsync: true))
{
CompressionAndEncryptDataFlow.CompressAndEncrypt(streamSource, streamDestination, degreeOfParallelism).Wait();
streamDestination.Close();
}
}
public static void CompressAndEncrypt(string srcFile, string dstFile, string rstFile)
{
try
{
var sw = System.Diagnostics.Stopwatch.StartNew();
Console.WriteLine("CompressAndEncrypt ...");
using (var streamSource = new FileStream(srcFile, FileMode.OpenOrCreate, FileAccess.Read, FileShare.None, 0x1000, useAsync: true))
using (var streamDestination = new FileStream(dstFile, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, 0x1000, useAsync: true))
{
CompressionAndEncryptDataFlow.CompressAndEncrypt(streamSource, streamDestination).Wait();
streamDestination.Close();
}
Console.WriteLine($"Done in {sw.ElapsedMilliseconds}");
Console.WriteLine("Press Enter to continue");
Console.ReadLine();
sw.Restart();
Console.WriteLine("DecryptAndDecompress ...");
using (var streamSource = new FileStream(dstFile, FileMode.OpenOrCreate, FileAccess.Read, FileShare.None, 0x1000, useAsync: true))
using (var streamDestination = new FileStream(rstFile, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, 0x1000, useAsync: true))
CompressionAndEncryptDataFlow.DecryptAndDecompress(streamSource, streamDestination).Wait();
Console.WriteLine($"Done in {sw.ElapsedMilliseconds}");
Console.WriteLine("Press Enter to continue");
Console.ReadLine();
Console.WriteLine("Verification ...");
using (var f1 = System.IO.File.OpenRead(srcFile))
using (var f2 = System.IO.File.OpenRead(rstFile))
{
bool ok = false;
if (f1.Length == f2.Length)
{
ok = true;
int count;
const int size = 0x1000000;
var buffer = new byte[size];
var buffer2 = new byte[size];
while ((count = f1.Read(buffer, 0, buffer.Length)) > 0 && ok == true)
{
f2.Read(buffer2, 0, count);
ok = buffer2.SequenceEqual(buffer);
if (!ok)
{
break;
}
}
}
Console.WriteLine($"Restored file isCorrect = {ok}");
}
Console.WriteLine("Press Enter to continue");
Console.ReadLine();
}
catch (AggregateException ex)
{
var q = new Queue <Exception>(new[] { ex });
while (q.Count > 0)
{
var e = q.Dequeue();
Console.WriteLine($"\t{e.Message}");
if (e is AggregateException)
{
foreach (var x in (e as AggregateException).InnerExceptions)
{
q.Enqueue(x);
}
}
else
{
if (e.InnerException != null)
{
q.Enqueue(e.InnerException);
}
}
}
}
}
