public override byte[] GetChunk(FileAndOffset fo, uint size)
{
string file;
byte[] buf = null;
file = Convert.ToString(fo.file);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
try
{
Monitor.Enter(chunkDataFilesMutex);
MemoryStream stream;
if (RamFileSystem.TryGetValue(file, out stream))
{
LogUtility.LogUtility.LogFile("GetChunk: found " + file, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
long pos = stream.Position;
stream.Position = fo.offset;
buf = new byte[size];
stream.Read(buf, 0, (int)size);
stream.Position = pos;
Monitor.Exit(chunkDataFilesMutex);
return(buf);
}
Monitor.Exit(chunkDataFilesMutex);
return(null);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
}
return(buf);
}
public override byte[] GetChunk(FileAndOffset fo, uint size)
{
string file;
byte[] buf = null;
file = Convert.ToString(fo.file);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
try
{
Monitor.Enter(chunkDataFilesMutex);
FileStream fs = File.OpenRead(file);
if (fs.Length <= fo.offset)
{
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
return(null);
}
buf = new byte[size];
fs.Position = fo.offset;
fs.Read(buf, 0, buf.Length);
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
}
return(buf);
}
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
string file = "";
FileStream fs;
try
{
Monitor.Enter(chunkDataFilesMutex);
if (allChunkDataFiles.Count > 0)
{
int idx;
for (idx = 0; idx < allChunkDataFiles.Count; idx++)
{
if (File.Exists(allChunkDataFiles[idx]))
{
FileInfo fileInfo = new FileInfo(allChunkDataFiles[idx]);
if ((fileInfo.Length + size) < FileMaxSize)
{
file = allChunkDataFiles[idx];
break;
}
}
}
}
if (file == "")
{
file = Convert.ToString(++LastFileId);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
LogUtility.LogUtility.LogFile("new file " + file, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
allChunkDataFiles.Add(file);
fs = File.Create(file);
fo.file = LastFileId;
fo.offset = 0;
}
else
{
int slash_idx;
string filename2 = "";
//slash_idx = file.IndexOf("\\");
slash_idx = file.LastIndexOf("\\");
if (slash_idx == -1)
{
filename2 = file;
}
else
{
filename2 = file.Substring(slash_idx + 1);
}
fs = File.Open(file, FileMode.Append, FileAccess.Write);
fo.file = StringName2LongName(filename2);
fo.offset = fs.Position;
}
fs.Write(data, (int)offset, (int)size);
fs.Flush();
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION IN AddNewChunk " + file + " " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
fo.file = 0;
fo.offset = 0;
}
}
public override byte[] GetChunk(FileAndOffset fo, uint size)
{
string file;
byte[] buf = null;
file = Convert.ToString(fo.file);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
try
{
Monitor.Enter(chunkDataFilesMutex);
FileStream fs = File.OpenRead(file);
if (fs.Length <= fo.offset)
{
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
return null;
}
buf = new byte[size];
fs.Position = fo.offset;
fs.Read(buf, 0, buf.Length);
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
}
return buf;
}
public abstract void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo);
public abstract byte[] GetChunk(FileAndOffset fo, uint size);
public abstract void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo);
public abstract byte[] GetChunk(FileAndOffset fo, uint size);
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
string file = "";
MemoryStream stream = null;
try
{
Monitor.Enter(chunkDataFilesMutex);
if (allChunkDataFiles.Count > 0)
{
int idx;
for (idx = 0; idx < allChunkDataFiles.Count; idx++)
{
if (RamFileSystem.TryGetValue(allChunkDataFiles[idx], out stream))
{
LogUtility.LogUtility.LogFile("AddNewChunk: found " + allChunkDataFiles[idx],LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
if ((stream.Length + size) < FileMaxSize)
{
file = allChunkDataFiles[idx];
break;
}
}
}
}
if (file == "")
{
file = Convert.ToString(++LastFileId);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
LogUtility.LogUtility.LogFile("new file " + file, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
allChunkDataFiles.Add(file);
stream = new MemoryStream();
RamFileSystem.Add(file, stream);
fo.file = LastFileId;
fo.offset = 0;
}
else
{
int slash_idx;
string filename2 = "";
//slash_idx = file.IndexOf("\\");
slash_idx = file.LastIndexOf("\\");
if (slash_idx == -1)
{
filename2 = file;
}
else
{
filename2 = file.Substring(slash_idx + 1);
}
LogUtility.LogUtility.LogFile("AddNewChunk2: found " + file + " " + filename2, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
fo.file = StringName2LongName(filename2);
fo.offset = stream.Position;
}
stream.Write(data,(int)offset,(int)size);
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION IN AddNewChunk " + file + " " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
fo.file = 0;
fo.offset = 0;
}
}
public override byte[] GetChunk(FileAndOffset fo, uint size)
{
string file;
byte[] buf = null;
file = Convert.ToString(fo.file);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
try
{
Monitor.Enter(chunkDataFilesMutex);
MemoryStream stream;
if (RamFileSystem.TryGetValue(file, out stream))
{
LogUtility.LogUtility.LogFile("GetChunk: found " + file,LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
long pos = stream.Position;
stream.Position = fo.offset;
buf = new byte[size];
stream.Read(buf, 0, (int)size);
stream.Position = pos;
Monitor.Exit(chunkDataFilesMutex);
return buf;
}
Monitor.Exit(chunkDataFilesMutex);
return null;
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
}
return buf;
}
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
throw new NotImplementedException();
fo.file = 0;
fo.offset = 0;
}
public override byte[] GetChunk(FileAndOffset fo, uint size)
{
throw new NotImplementedException();
return(null);
}
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
string file = "";
MemoryStream stream = null;
try
{
Monitor.Enter(chunkDataFilesMutex);
if (allChunkDataFiles.Count > 0)
{
int idx;
for (idx = 0; idx < allChunkDataFiles.Count; idx++)
{
if (RamFileSystem.TryGetValue(allChunkDataFiles[idx], out stream))
{
LogUtility.LogUtility.LogFile("AddNewChunk: found " + allChunkDataFiles[idx], LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
if ((stream.Length + size) < FileMaxSize)
{
file = allChunkDataFiles[idx];
break;
}
}
}
}
if (file == "")
{
file = Convert.ToString(++LastFileId);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
LogUtility.LogUtility.LogFile("new file " + file, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
allChunkDataFiles.Add(file);
stream = new MemoryStream();
RamFileSystem.Add(file, stream);
fo.file = LastFileId;
fo.offset = 0;
}
else
{
int slash_idx;
string filename2 = "";
//slash_idx = file.IndexOf("\\");
slash_idx = file.LastIndexOf("\\");
if (slash_idx == -1)
{
filename2 = file;
}
else
{
filename2 = file.Substring(slash_idx + 1);
}
LogUtility.LogUtility.LogFile("AddNewChunk2: found " + file + " " + filename2, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
fo.file = StringName2LongName(filename2);
fo.offset = stream.Position;
}
stream.Write(data, (int)offset, (int)size);
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION IN AddNewChunk " + file + " " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
fo.file = 0;
fo.offset = 0;
}
}
public override byte[] GetChunk(FileAndOffset fo, uint size)
{
throw new NotImplementedException();
return null;
}
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
throw new NotImplementedException();
fo.file = 0;
fo.offset = 0;
}
public override void AddNewChunk(byte[] data, uint offset, uint size, long chunkId, out FileAndOffset fo)
{
string file = "";
FileStream fs;
try
{
Monitor.Enter(chunkDataFilesMutex);
if (allChunkDataFiles.Count > 0)
{
int idx;
for (idx = 0; idx < allChunkDataFiles.Count; idx++)
{
if (File.Exists(allChunkDataFiles[idx]))
{
FileInfo fileInfo = new FileInfo(allChunkDataFiles[idx]);
if ((fileInfo.Length + size) < FileMaxSize)
{
file = allChunkDataFiles[idx];
break;
}
}
}
}
if (file == "")
{
file = Convert.ToString(++LastFileId);
file += FileType2Extension((byte)FileTypes.CHUNK_DATA_FILE_TYPE);
file = WorkingDirectory + "\\" + file;
LogUtility.LogUtility.LogFile("new file " + file, LogUtility.LogLevels.LEVEL_LOG_MEDIUM);
allChunkDataFiles.Add(file);
fs = File.Create(file);
fo.file = LastFileId;
fo.offset = 0;
}
else
{
int slash_idx;
string filename2 = "";
//slash_idx = file.IndexOf("\\");
slash_idx = file.LastIndexOf("\\");
if (slash_idx == -1)
{
filename2 = file;
}
else
{
filename2 = file.Substring(slash_idx + 1);
}
fs = File.Open(file, FileMode.Append, FileAccess.Write);
fo.file = StringName2LongName(filename2);
fo.offset = fs.Position;
}
fs.Write(data, (int)offset, (int)size);
fs.Flush();
fs.Close();
Monitor.Exit(chunkDataFilesMutex);
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION IN AddNewChunk " + file + " " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
fo.file = 0;
fo.offset = 0;
}
}
