public void OnStreamPartChange(PackageDataStreamPart oldPart, PackageDataStreamPart newPart)
{
EnsureNotDisposed();
bool keepSameStream = oldPart != null && newPart != null && oldPart.Path == newPart.Path;
if (keepSameStream)
{
// move stream to new part
newPart.Stream = oldPart.Stream;
currentPart.FileStream.Seek(newPart.SegmentOffsetInDataFile, SeekOrigin.Begin);
}
else
{
// close old one
if (oldPart != null)
{
DisposeCurrentPart();
}
// open new part
if (newPart != null)
{
currentPart = new CurrentPart();
currentPart.Part = newPart;
currentPart.FileStream = new FileStream(newPart.Path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
currentPart.FileStream.Seek(newPart.SegmentOffsetInDataFile, SeekOrigin.Begin);
currentPart.Part.Stream = currentPart.FileStream;
}
}
}
public void OnStreamPartChange(PackageDataStreamPart oldPart, PackageDataStreamPart newPart)
{
EnsureNotDisposed();
bool keepSameStream = oldPart != null && newPart != null && oldPart.Path == newPart.Path;
// compute hash
if (oldPart != null)
{
ComputeCurrentPartHash();
}
if (!keepSameStream)
{
// close old one
if (oldPart != null)
{
DisposeCurrentPart();
}
// open new part
if (newPart != null)
{
logger.LogTrace($"Opening data file {Path.GetFileName(newPart.Path)} for writing.");
currentPart = new CurrentPart
{
Part = newPart,
};
}
}
// update current part
if (newPart != null)
{
currentPart.Part = newPart;
currentPart.HashAlgorithm = cryptoProvider.CreateHashAlgorithm();
if (writeToNestedStream)
{
// allocate and write to memory stream
memStream.Position = 0;
memStream.SetLength(0);
currentPart.HashStream = new CryptoStream(memStream, currentPart.HashAlgorithm, CryptoStreamMode.Write, leaveOpen: true);
}
else
{
// write to NULL - just compute hash
currentPart.HashStream = new CryptoStream(Stream.Null, currentPart.HashAlgorithm, CryptoStreamMode.Write, leaveOpen: true);
}
currentPart.Part.Stream = currentPart.HashStream;
}
}
public void OnStreamPartChange(PackageDataStreamPart oldPart, PackageDataStreamPart newPart)
{
EnsureNotDisposed();
bool keepSameStream = oldPart != null && newPart != null && oldPart.Path == newPart.Path;
// compute hash
if (oldPart != null)
{
ComputeCurrentPartHash();
}
if (!keepSameStream)
{
// close old one
if (oldPart != null)
{
DisposeCurrentPart();
}
// open new part
if (newPart != null)
{
logger.LogDebug($"Creating new data file {Path.GetFileName(newPart.Path)}. Already wrote {SizeFormatter.ToString(totalSize)}.");
currentPart = new CurrentPart
{
Part = newPart,
FileStream = new FileStream(newPart.Path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None)
};
currentPart.FileStream.SetLength(newPart.DataFileLength);
}
}
// update current part
if (newPart != null)
{
currentPart.Part = newPart;
currentPart.FileStream.Seek(newPart.SegmentOffsetInDataFile, SeekOrigin.Begin);
currentPart.HashAlgorithm = cryptoProvider.CreateHashAlgorithm();
currentPart.HashStream = new CryptoStream(currentPart.FileStream, currentPart.HashAlgorithm, CryptoStreamMode.Write, leaveOpen: true);
currentPart.Part.Stream = currentPart.HashStream;
}
}
public void OnStreamPartChange(PackageDataStreamPart oldPart, PackageDataStreamPart newPart)
{
EnsureNotDisposed();
bool keepSameStream = oldPart != null && newPart != null && oldPart.Path == newPart.Path;
// flush
if (oldPart != null)
{
FlushCurrentPart();
}
if (!keepSameStream)
{
// close old one
if (oldPart != null)
{
DisposeCurrentPart();
}
// open new part
if (newPart != null)
{
logger.LogTrace($"Opening data file {Path.GetFileName(newPart.Path)} for writing.");
currentPart = new CurrentPart
{
Part = newPart,
FileStream = new FileStream(newPart.Path, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite)
};
}
}
// update current part
if (newPart != null)
{
currentPart.Part = newPart;
currentPart.FileStream.Seek(newPart.SegmentOffsetInDataFile, SeekOrigin.Begin);
currentPart.Part.Stream = currentPart.FileStream;
}
}