/// <summary>
/// Реализует поблочную запись в файл
/// </summary>
/// <exception cref="System.UnauthorizedAccessException"></exception>
/// <exception cref="System.IO.IOException"></exception>
private void WriteFile()
{
bool fileHadHiddenAttribute = (File.Exists(fileToWritePath) && TryToRemoveHiddenAtribute(fileToWritePath));
int blockToWriteNumber = 0;
try
{
using Writer fileWriter = new Writer(fileToWritePath);
Block blockToWrite = null;
while (!allBlocksWriten)
{
if (writeBuffer.ContainsKey(blockToWriteNumber))
{
if (writeBuffer[blockToWriteNumber] != null)
{
writeBuffer.TryRemove(blockToWriteNumber, out blockToWrite);
blockToWriteNumber++;
fileWriter.Write(blockToWrite);
}
}
if (writeBuffer.Count < 100)
{
canAddBlockToBuffer = true;
}
if (blocksReaded == fileWriter.TotalBlockWrite && !readQueue.IsWaitingForEnqueue)
{
allBlocksWriten = true;
}
}
}
catch (IOException e)
{
if (fileHadHiddenAttribute)
{
SetHiddenAttribute();
}
IOExceptionHandler.Run(e.Message, args, "Writer");
}
catch (UnauthorizedAccessException e)
{
if (fileHadHiddenAttribute)
{
SetHiddenAttribute();
}
UnauthorizedAccessExceptionHandler.Run(e.Message, args, "Writer");
}
if (fileHadHiddenAttribute)
{
SetHiddenAttribute();
}
}
/// <summary>
/// Реализует поблочное чтение из файла
/// </summary>
/// <exception cref="System.UnauthorizedAccessException"></exception>
/// <exception cref="System.ArgumentException"></exception>
/// <exception cref="System.IO.IOException"></exception>
private void ReadFile()
{
Thread readerThread = new Thread(() =>
{
Reader fileReader = null;
try
{
fileReader = new Reader(fileToReadPath);
while (fileReader.CanRead)
{
Block block = fileReader.ReadNextBlock();
readQueue.Enqueue(block);
blocksReaded++;
}
}
catch (IOException e)
{
IOExceptionHandler.Run(e.Message, args, "Reader");
}
catch (UnauthorizedAccessException e)
{
UnauthorizedAccessExceptionHandler.Run(e.Message, args, "Reader");
}
catch (Exception e)
{
OnException?.Invoke(e);
}
finally
{
if (fileReader != null)
{
fileReader.Dispose();
}
}
readQueue.IsWaitingForEnqueue = false;
blocksReaded--;
Console.WriteLine(Thread.CurrentThread.Name + " ended");
countdown.Signal();
});
readerThread.Name = "ReaderThread";
readerThread.Start();
}
