public Compressor(string sourcePath, int chunkSize, string targetPath)
{
this.sourcePath = sourcePath;
this.targetPath = targetPath;
this.compressedChunks = new LimitedConcurrentQueue <CompressedChunk>(Math.Max((int)Math.Min(MemoryLimiter.AllowedMemoryBytes / chunkSize, int.MaxValue), 1));
this.sourceChunks = new ConcurrentQueue <ChunkDescriptor>(FilePartitioner.CalculateChunks(sourcePath, chunkSize));
this.uncompressedChunksCount = sourceChunks.Count;
}
static int Main(string[] args)
{
if (args.Length != 3)
{
Console.WriteLine("Invalid argument count.");
Console.WriteLine(Usage);
return(1);
}
var inputFilePath = args[1];
if (!File.Exists(inputFilePath))
{
Console.WriteLine("Input file does not exist.");
return(1);
}
var outFilePath = args[2];
try
{
Path.GetFileName(outFilePath);
}
catch
{
Console.WriteLine("Invalid output file name.");
return(1);
}
if (File.Exists(outFilePath))
{
Console.WriteLine("Output file already exists. Specify a new file name.");
return(1);
}
switch (args[0])
{
case "compress":
var compressor = new Compressor(inputFilePath, FilePartitioner.GetRecommendedChunkSize(inputFilePath), outFilePath);
try
{
compressor.Compress();
}
catch (Exception e)
{
Debug.WriteLine(e);
Console.WriteLine($"Unexpected error occured: {e.Message}.");
return(1);
}
break;
case "decompress":
var decompressor = new Decompressor(inputFilePath, outFilePath);
try
{
decompressor.Decompress();
}
catch (Exception e)
{
Debug.WriteLine(e);
Console.WriteLine($"Unexpected error occured: {e.Message}.");
return(1);
}
break;
default:
Console.WriteLine("Cannot parse arguments.");
Console.WriteLine(Usage);
return(1);
}
return(0);
}