/// <summary>
/// Console starting point to compress or decompress file.
/// Determines chunk size and memory buffer to limit RAM usage.
/// </summary>
/// <param name="args">Must comply GZipTest.exe compress/decompress [initial file name][restul file name]</param>
/// <returns>Returns 0 if success or 1 if error happened</returns>
static int Main(string[] args)
{
int chunkSize = 1024 * 1024;
int memBufferSize = 3; // max chunks in memory buffer per each buffer
if (ParameterValidator.Validate(args) == false)
{
return(1);
}
string fileToProcess = args[1];
string fileResult = args[2];
try
{
long length = new FileInfo(fileToProcess).Length;
if (length == 0)
{
File.Create(fileResult);
return(0);
}
if (length < chunkSize) // File is smaller than chunk size
{
chunkSize = (int)length; // file size would be used instead
}
IGzipOperations job = null;
if (args[0] == "compress")
{
job = new Compressor(chunkSize);
}
else if (args[0] == "decompress")
{
job = new Decompressor();
}
var actionManager = new ActionManager(fileToProcess, fileResult, memBufferSize, job);
var threadWorker = new ThreadWorker(actionManager);
threadWorker.StartThreads();
}
catch (Exception ex)
{
Console.WriteLine("ERROR: " + ex.Message);
return(1);
}
return(0);
}