static public void FileCompress(string infileName, string outfileName)
{
FileStream infile = new FileStream(infileName, FileMode.Open, FileAccess.Read);
var extension = Path.GetExtension(infileName);
var directoryName = Path.GetDirectoryName(infileName);
int count = Convert.ToInt32(infile.Length / FileModify.GZipLimit) + 1;
long length = infile.Length;
// Console.WriteLine("размер файла: {0}", length);
long[] bytes = new long[count];
bytes[0] = 0;
infile.Close();
if (length > FileModify.GZipLimit)
{
FileModify.SplitFile(infileName, count, true, bytes);
for (int i = 0; i < count; i++)
{
string inFrag = string.Format(directoryName + "boof1" + "_{0}" + extension, i); //сжимаем через разбиение
GZipTest.Compress(inFrag, inFrag + ".gz");
File.Delete(inFrag);
}
FileModify.MergeFile(outfileName, count, true);
}
else
{
GZipTest.Compress(infileName, outfileName);
}
}
static public void FileDecompress(string infileName, string outfileName)
{
FileStream infile = new FileStream(infileName, FileMode.Open, FileAccess.Read);
var extension = Path.GetExtension(infileName.Remove(infileName.Length - 3));
var directoryName = Path.GetDirectoryName(infileName);
long length = infile.Length - 1;
infile.Close();
long[] bytes = GZipTest.MagicNumbers(infileName);
int count = bytes.Length;
Console.WriteLine("количество фрагментов: {0}", count);
if (length > FileModify.GZipLimit)
{
FileModify.SplitFile(infileName, count, false, bytes);
for (int i = 0; i < count; i++)
{
string outFrag = string.Format(directoryName + "boof1" + "_{0}" + extension, i);
GZipTest.Decompress(outFrag + ".gz", outFrag);
Console.WriteLine("распаковка {0}, {1}", i, bytes[i]);
File.Delete(outFrag + ".gz");
}
FileModify.MergeFile(outfileName, count, false);
}
else
{
GZipTest.Decompress(infileName, outfileName);
}
}
public static int TestMain(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
int threadCount = Environment.ProcessorCount;
int chunkLength;
CompressionMode compressionMode;
string inputFileName;
string outputFileName;
CheckAndAssignValuesFromInput(args, out inputFileName, out outputFileName, out compressionMode, out chunkLength, ref threadCount);
Stream inputStream = GetInputStream(inputFileName);
Stream outputStream = GetOutputStream(outputFileName);
try
{
if (compressionMode == CompressionMode.Compress)
{
GZipTest.Compress(inputStream, outputStream, chunkLength, threadCount);
}
else if (compressionMode == CompressionMode.Decompress)
{
GZipTest.Decompress(inputStream, outputStream, chunkLength, threadCount);
}
}
catch (InvalidDataException ex)
{
throw new Exception("Incorrect data format", ex);
}
catch (OutOfMemoryException ex)
{
throw new Exception("System does not have sufficient memmory. Try to set up with additional parameters [chunkLengt] and [threadCount].", ex);
}
finally
{
inputStream?.Dispose();
outputStream?.Dispose();
}
return(1);
}