/// <summary>
/// Adds the entry to directory (given by <see cref="DataDescriptor" />).
/// </summary>
/// <param name="dataDescriptor">The data descriptor.</param>
/// <param name="metaEntry">The meta entry.</param>
/// <returns>A <see cref="DataDescriptor"/> describing directory after append</returns>
public void UpdateEntry(DataDescriptor dataDescriptor, ExFatMetaDirectoryEntry metaEntry)
{
lock (_directoryLock)
{
using (var directoryStream = OpenDataStream(dataDescriptor, FileAccess.ReadWrite))
{
directoryStream.Seek(metaEntry.Primary.DirectoryPosition, SeekOrigin.Begin);
metaEntry.Write(directoryStream);
}
}
}
/// <summary>
/// Adds the entry to directory (given by <see cref="DataDescriptor" />.
/// </summary>
/// <param name="targetDirectoryDataDescriptor">The data descriptor.</param>
/// <param name="metaEntry">The meta entry.</param>
/// <returns>A <see cref="DataDescriptor"/> describing directory after append</returns>
public DataDescriptor AddEntry(DataDescriptor targetDirectoryDataDescriptor, ExFatMetaDirectoryEntry metaEntry)
{
var r = targetDirectoryDataDescriptor;
lock (_directoryLock)
{
using (var directoryStream = OpenDataStream(targetDirectoryDataDescriptor, FileAccess.ReadWrite, d => r = d))
{
var availableSlot = FindAvailableSlot(directoryStream, metaEntry.Entries.Count);
directoryStream.Seek(availableSlot, SeekOrigin.Begin);
foreach (var entry in metaEntry.Entries)
{
entry.EntryType.Value |= ExFatDirectoryEntryType.InUse;
}
metaEntry.Write(directoryStream);
}
}
return(r);
}