public static void CreateCompressionTasks(int numOfTasks, ThreadPool tp, StreamManager sm)
{
for (int i = 0; i < numOfTasks; i++)
{
Block block = new Block(StreamManager.BlockSize);
Task task = new Task(block, sm);
tp.AddTaskToQueue(task);
}
}
public static void CreateDecompressionTasks(ThreadPool tp, StreamManager sm)
{
sm.ReadBlockSizes();
while (sm.ReadBlockSizesStack.Count != 0)
{
int blockSize = sm.ReadBlockSizesStack.Pop();
Block block = new Block(blockSize);
Task task = new Task(block, sm);
tp.AddTaskToQueue(task);
}
}
private int RunProgram()
{
using (var reader = new FileStream(ApplicationSettings.InFile, FileMode.Open, FileAccess.Read))
{
using (var writer = new FileStream(ApplicationSettings.OutFile, FileMode.OpenOrCreate, FileAccess.Write))
{
//Create input/output manager
StreamManager sm = new StreamManager(reader, writer);
int numOfTasks = 0;
//Get appropriate number of tasks that we'll nedd to run
if (ApplicationSettings.Compress)
{
numOfTasks = sm.GetNumberOfBlocksForCompression();
}
else if (ApplicationSettings.Decompress)
{
numOfTasks = sm.GetNumberOfBlocksForDecompression();
}
//Start the pool
ThreadPool tp = new ThreadPool(numOfTasks);
tp.Start();
//Create appropriate tasks and add them to the queue so that threads can pick tasks up
if (ApplicationSettings.Compress)
{
Compressor.CreateCompressionTasks(numOfTasks, tp, sm);
}
else if (ApplicationSettings.Decompress)
{
Decompressor.CreateDecompressionTasks(tp, sm);
}
//Play some animation while proccessing is happening
while (!tp.Finished && tp.Started)
{
Thread.Sleep(500);
Console.Write("\rProcessing \\ ");
Thread.Sleep(500);
Console.Write("\rProcessing | ");
Thread.Sleep(500);
Console.Write("\rProcessing / ");
Thread.Sleep(500);
Console.Write("\rProcessing | ");
}
Console.WriteLine();
//Add block sizes and mount of block to the end of the file
if (ApplicationSettings.Compress)
{
sm.WriteBlockSizes();
}
//Stop the pool
tp.Stop();
//Assert the results
if (tp.ExceptionHappened)
{
return(1);
}
else
{
return(0);
}
}
}
}
public Task(Block block, StreamManager streamManager)
{
this.block = block;
this.streamManager = streamManager;
}