/// <summary>
/// Requested file data. Read the file and write it to ProjFS.
/// </summary>
public HResult GetFileDataCallback(int commandId, string relativePath, ulong byteOffset, uint length, Guid dataStreamId, byte[] contentId, byte[] providerId, uint triggeringProcessId, string triggeringProcessImageFileName)
{
var assetPath = GetAssetPath(relativePath);
var pakFileSystemInfo = GetSystemInfo(assetPath);
if (pakFileSystemInfo == null)
{
return(HResult.FileNotFound);
}
uint dataSize = Convert.ToUInt32(pakFileSystemInfo.Size);
try
{
using (IWriteBuffer writeBuffer = virtualizationInstance.CreateWriteBuffer(dataSize))
{
var data = ReadFile(assetPath);
if (data == null)
{
return(HResult.FileNotFound);
}
writeBuffer.Stream.Write(data, 0, data.Length);
HResult writeResult = virtualizationInstance.WriteFileData(dataStreamId, writeBuffer, 0, dataSize);
return(writeResult);
}
}
catch (OutOfMemoryException)
{
return(HResult.OutOfMemory);
}
catch (Exception)
{
return(HResult.InternalError);
}
}
public HResult GetFileDataCallback(int commandId, string relativePath, ulong byteOffset, uint length, Guid dataStreamId, byte[] contentId, byte[] providerId, uint triggeringProcessId, string triggeringProcessImageFileName)
{
if (string.IsNullOrWhiteSpace(relativePath))
{
return(HResult.Ok);
}
else
{
var fullPath = GetFullPath(relativePath);
if (sftpClient.Exists(fullPath))
{
var file = sftpClient.Get(fullPath);
uint desiredBufferSize = (uint)Math.Min(64 * 1024, file.Length);
using (var reader = sftpClient.OpenRead(fullPath)) {
using (var writeBuffer = virtualization.CreateWriteBuffer(byteOffset, desiredBufferSize, out var alignedWriteOffset, out var alignedBufferSize)) {
while (alignedWriteOffset < (ulong)file.Length)
{
writeBuffer.Stream.Seek(0, SeekOrigin.Begin);
var currentBufferSize = Math.Min(desiredBufferSize, (ulong)file.Length - alignedWriteOffset);
var buffer = new byte[currentBufferSize];
reader.Read(buffer, 0, (int)currentBufferSize);
writeBuffer.Stream.Write(buffer, 0, (int)currentBufferSize);
var hr = virtualization.WriteFileData(dataStreamId, writeBuffer, alignedWriteOffset, (uint)currentBufferSize);
if (hr != HResult.Ok)
{
return(HResult.InternalError);
}
alignedWriteOffset += (ulong)currentBufferSize;
}
}
}
return(HResult.Ok);
}
else
{
return(HResult.FileNotFound);
}
}
}
