private int SynchonizeLocalAndRemoteFile(int fileId, string localFile, string remoteFile, List <string> remoteHashes)
{
int byteCount = 0;
int index = 0;
byte[] buffer = new byte[_chunkSize];
int chunkSent = 0;
string localHash = String.Empty;
BackupProgressEventArgs progressEventArgs = new BackupProgressEventArgs(0);
Logger.Write(30013, "Synchronizing " + localFile + " with " + remoteFile, Logger.MessageSeverity.Debug);
if (!base.IsCancelRequired)
{
using (FileStream fileToRead = FileSystem.GetOutlookFile(localFile))
{
using (Stream fileToWrite = File.OpenWrite(remoteFile))
{
do
{
if (!base.IsCancelRequired)
{
byteCount = fileToRead.Read(buffer, 0, _chunkSize);
localHash = GetHash(buffer);
if (index >= remoteHashes.Count || localHash != remoteHashes[index])
{
fileToWrite.Position = (long)index * _chunkSize;
fileToWrite.Write(buffer, 0, byteCount);
chunkSent++;
if (index >= remoteHashes.Count)
{
_clientDb.InsertHash(fileId, index, localHash);
}
else
{
_clientDb.UpdateHash(fileId, index, localHash);
}
}
index++;
progressEventArgs.Percent = (int)(fileToRead.Position * 100 / fileToRead.Length);
BackupProgress(progressEventArgs);
}
else
{
break;
}
} while (fileToRead.Position < fileToRead.Length);
}
}
}
Logger.Write(30014, "Synchronizing finish. " + chunkSent + " chunk(s) have been sent to the remote destination", Logger.MessageSeverity.Debug);
return(chunkSent);
}