/// <summary>
/// Downloads the file.
/// </summary>
public void DownloadFile(RelativePath path, long offset, int count, bool readFromEnd,
DateTime newerThan, bool throwOnFail, string destFileName,
out DateTime lastWriteTime, out FileReadingResult readingResult)
{
DownloadFile(path, offset, count, readFromEnd, newerThan, throwOnFail,
() => { return(new FileStream(destFileName, FileMode.Create, FileAccess.Write, FileShare.Read)); },
out lastWriteTime, out readingResult, out Stream stream);
stream?.Dispose();
}
/// <summary>
/// Downloads the file.
/// </summary>
public void DownloadFile(RelativePath path, long offset, int count, bool readFromEnd,
DateTime newerThan, bool throwOnFail, Func <Stream> createStreamFunc,
out DateTime lastWriteTime, out FileReadingResult readingResult, out Stream stream)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (createStreamFunc == null)
{
throw new ArgumentNullException(nameof(createStreamFunc));
}
RestoreConnection();
DataPacket request = CreateRequest(FunctionID.DownloadFile);
int index = ArgumentIndex;
CopyFileName(path.DirectoryID, path.Path, outBuf, ref index);
CopyInt64(offset, outBuf, ref index);
CopyInt32(count, outBuf, ref index);
CopyBool(readFromEnd, outBuf, ref index);
CopyTime(newerThan, outBuf, ref index);
request.BufferLength = index;
SendRequest(request);
int prevBlockNumber = 0;
lastWriteTime = DateTime.MinValue;
readingResult = FileReadingResult.BlockRead;
stream = null;
try
{
while (readingResult == FileReadingResult.BlockRead)
{
ReceiveResponse(request);
index = ArgumentIndex;
int blockNumber = GetInt32(inBuf, ref index);
int blockCount = GetInt32(inBuf, ref index);
lastWriteTime = GetTime(inBuf, ref index);
readingResult = (FileReadingResult)GetByte(inBuf, ref index);
if (blockNumber != prevBlockNumber + 1)
{
ThrowBlockNumberException();
}
if (readingResult == FileReadingResult.BlockRead ||
readingResult == FileReadingResult.Completed)
{
if (stream == null)
{
stream = createStreamFunc();
}
int bytesToWrite = GetInt32(inBuf, ref index);
stream.Write(inBuf, index, bytesToWrite);
}
prevBlockNumber = blockNumber;
OnProgress(blockNumber, blockCount);
}
if (throwOnFail && readingResult != FileReadingResult.Completed)
{
throw new ProtocolException(ErrorCode.InternalServerError, string.Format(Locale.IsRussian ?
"Ошибка при чтении файла {0}: {1}" :
"Error reading file {0}: {1}", path, readingResult.ToString(Locale.IsRussian)));
}
}
catch
{
stream?.Dispose();
stream = null;
throw;
}
}
/// <summary>
/// Downloads the file.
/// </summary>
public void DownloadFile(RelativePath relativePath, long offset, int count, bool readFromEnd,
DateTime newerThan, Func <Stream> createStreamFunc,
out DateTime fileAge, out FileReadingResult readingResult, out Stream stream)
{
if (createStreamFunc == null)
{
throw new ArgumentNullException(nameof(createStreamFunc));
}
RestoreConnection();
DataPacket request = CreateRequest(FunctionID.DownloadFile);
int index = ArgumentIndex;
CopyFileName(relativePath.GetDirectoryID(), relativePath.Path, outBuf, ref index);
CopyInt64(offset, outBuf, ref index);
CopyInt32(count, outBuf, ref index);
CopyBool(readFromEnd, outBuf, ref index);
CopyTime(newerThan, outBuf, ref index);
request.BufferLength = index;
SendRequest(request);
int prevBlockNumber = 0;
fileAge = DateTime.MinValue;
readingResult = FileReadingResult.Successful;
stream = null;
try
{
while (readingResult == FileReadingResult.Successful)
{
ReceiveResponse(request);
index = ArgumentIndex;
int blockNumber = GetInt32(inBuf, ref index);
int blockCount = GetInt32(inBuf, ref index);
fileAge = GetTime(inBuf, ref index);
readingResult = (FileReadingResult)GetByte(inBuf, ref index);
if (blockNumber != prevBlockNumber + 1)
{
ThrowBlockNumberException();
}
if (readingResult == FileReadingResult.Successful ||
readingResult == FileReadingResult.EndOfFile)
{
if (stream == null)
{
stream = createStreamFunc();
}
int bytesToWrite = GetInt32(inBuf, ref index);
stream.Write(inBuf, index, bytesToWrite);
}
prevBlockNumber = blockNumber;
OnProgress(blockNumber, blockCount);
}
}
catch
{
stream?.Dispose();
stream = null;
throw;
}
}
