public void Flush()
{
try
{
lock (PadLock)
{
string[] keys = CachedFiles.Keys.ToArray();
foreach (string key in keys)
{
CachedFile cachedFile = CachedFiles[key];
if (!cachedFile.Flushed)
{
FileIO.CreateDirectory(Path.GetDirectoryName(cachedFile.FileName));
FileIO.WriteFile(cachedFile.FileName, cachedFile.MemoryStream.ToArray());
cachedFile.Flushed = true;
}
if (!cachedFile.Permanent &&
DateTime.Now.Subtract(cachedFile.LastAccessed).TotalHours > 24)
{
CachedFiles.Remove(key);
}
}
}
}
catch
{
GlobalReference.GlobalValues.Logger.Log(Logging.LogSettings.LogLevel.INFO, "File system is down");
}
}
private void AppendStream(CachedFile cachedFile, byte[] dataToWrite)
{
//we are already locked from the calling method
cachedFile.LastAccessed = DateTime.Now;
cachedFile.Flushed = false;
cachedFile.MemoryStream.Seek(0, SeekOrigin.End);
cachedFile.MemoryStream.Write(dataToWrite, 0, dataToWrite.Length);
}
private void WriteStream(string fileName, byte[] dataToWrite)
{
CachedFile cachedFile = GetStream(fileName);
lock (cachedFile)
{
cachedFile.MemoryStream = new MemoryStream();
AppendStream(cachedFile, dataToWrite);
}
}
private void AppendStream(string fileName, byte[] dataToWrite)
{
CachedFile cachedFile = GetStream(fileName);
lock (cachedFile)
{
if (cachedFile.MemoryStream == null)
{
cachedFile.MemoryStream = LoadFromFile(fileName);
}
AppendStream(cachedFile, dataToWrite);
}
}
private byte[] ReadStream(string fileName)
{
CachedFile cachedFile = GetStream(fileName);
lock (cachedFile)
{
if (cachedFile.MemoryStream == null)
{
cachedFile.MemoryStream = LoadFromFile(fileName);
}
cachedFile.LastAccessed = DateTime.Now;
return(cachedFile.MemoryStream.ToArray());
}
}
private CachedFile GetStream(string fileName)
{
CachedFile cachedFile = null;
lock (PadLock)
{
CachedFiles.TryGetValue(fileName, out cachedFile);
if (cachedFile == null)
{
cachedFile = new CachedFile(fileName, IsPermanent(fileName));
CachedFiles.Add(fileName, cachedFile);
}
}
return(cachedFile);
}
