public void Handler(ref TaskPool readerTaskPool, ref TaskPool writerTaskPool)
{
int blockNumber = -1;
byte[] blockValue = null;
while (true)
{
try
{
if (!readerTaskPool.TryGet(out blockNumber, out blockValue))
{
return;
}
if (blockValue == null)
{
break;
}
byte[] compressedBlock = GZip.Compress(blockValue);
if (!writerTaskPool.TrySet(blockNumber, compressedBlock))
{
return;
}
}
catch (Exception e)
{
_isDelete = true;
Terminate();
Console.WriteLine(e.Message);
return;
}
}
}
static void Main(string[] args)
{
ParseArgs options;
try
{
options = new ParseArgs(args);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
ICommand Command = null;
ProgressReport progress;
if (options.Command == Operation.Compress)
{
Command = new Compressor();
progress = new ProgressReport("Compress");
}
else
{
Command = new Decompressor();
progress = new ProgressReport("Decompress");
}
_readerTaskPool = new TaskPool(_cores);
_writerTaskPool = new TaskPool(_cores);
Stopwatch sw = new Stopwatch();
sw.Start();
Command.ShowProgress += progress.ShowProgress;
Command.Terminate += _readerTaskPool.Terminate;
Command.Terminate += _writerTaskPool.Terminate;
_reader = new Thread(delegate() { Command.Reader(options.Source, ref _readerTaskPool); });
for (int i = 0; i < _cores; i++)
{
_handlers[i] = new Thread(delegate() { Command.Handler(ref _readerTaskPool, ref _writerTaskPool); });
}
_writer = new Thread(delegate() { Command.Writer(options.Destination, ref _writerTaskPool); });
_reader.Start();
foreach (Thread handler in _handlers)
{
handler.Start();
}
_writer.Start();
_writer.Join();
foreach (Thread handler in _handlers)
{
handler.Join();
}
_reader.Join();
sw.Stop();
progress.Done(sw.Elapsed);
Command.Terminate -= _writerTaskPool.Terminate;
Command.Terminate -= _readerTaskPool.Terminate;
Command.ShowProgress -= progress.ShowProgress;
}
public void Writer(string destination, ref TaskPool writerTaskPool)
{
int counter = 0;
int blockNumber = -1;
byte[] blockValue = null;
try
{
using (BinaryWriter bw = new BinaryWriter(new FileStream(destination, FileMode.Create, FileAccess.Write, FileShare.None)))
{
bw.Write(BitConverter.GetBytes(_sourceLength));
bw.Write(BitConverter.GetBytes(_blockCount));
while (true)
{
if (!writerTaskPool.TryGet(out blockNumber, out blockValue))
{
return;
}
if (blockValue == null)
{
break;
}
try
{
bw.Write(BitConverter.GetBytes(blockNumber));
bw.Write(blockValue.Length);
bw.Write(blockValue);
}
catch (IOException e)
{
Terminate();
Console.WriteLine("ERROR: операция прервана ({0})", e.Message);
bw.Close();
File.Delete(destination);
return;
}
counter++;
ShowProgress((double)counter / _blockCount);
if (counter == _blockCount)
{
Terminate();
}
}
}
}
catch (Exception e)
{
_isDelete = true;
Terminate();
Console.WriteLine(e.Message);
}
if (_isDelete)
{
try
{
File.Delete(destination);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
}
}
public void Writer(string destination, ref TaskPool writerTaskPool)
{
try
{
FileInfo fi = new FileInfo(destination);
DriveInfo drive = new DriveInfo(fi.Directory.Root.FullName);
if (drive.DriveFormat == "FAT32" && _originLength > FAT32_MAX_FILE_SIZE)
{
throw new IOException("ERROR: недостаточно места на диске записи распакованного файла (ограничение FAT32)");
}
}
catch (Exception e)
{
Terminate();
Console.WriteLine(e.Message);
return;
}
int counter = 0;
int blockNumber = -1;
byte[] blockValue = null;
Dictionary <int, byte[]> buffer = new Dictionary <int, byte[]>();
try
{
using (BinaryWriter bw = new BinaryWriter(new FileStream(destination, FileMode.Create, FileAccess.Write, FileShare.None)))
{
while (true)
{
if (!writerTaskPool.TryGet(out blockNumber, out blockValue))
{
return;
}
if (blockValue == null)
{
break;
}
buffer[blockNumber] = blockValue;
while (buffer.ContainsKey(counter))
{
bw.Write(buffer[counter]);
buffer.Remove(counter);
counter++;
ShowProgress((double)counter / _blockCount);
if (counter == _blockCount)
{
Terminate();
return;
}
}
}
}
}
catch (Exception e)
{
_isDelete = true;
Terminate();
Console.WriteLine(e.Message);
}
if (_isDelete)
{
try
{
File.Delete(destination);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
}
}
