/// <summary>
/// Adds a file to the archive.
/// </summary>
public virtual void AddFile(string filename, byte[] buffer)
{
// See if the file already exists in the archive
if (fileTable.GetEntry(filename, EntryType.File) == null)
{
uint offset = GetDataDescriptor(fileTable.NextEntryOffset);
if (offset != FileTableEntry.NullOffset)
{
if (offset <= fileTable.NextEntryOffset)
{
// We have reached the data area of the archive, and will need to move
// this entry's data to the end of the file, in order to make room
// for more entries in the filetable.
FileTableEntry moveMe = fileTable.GetEntry(offset);
byte[] data = ReadFile(moveMe);
moveMe.DataOffset = (uint)archiveFile.Length;
moveMe.Save(bw);
WriteData(moveMe, data);
}
}
FileTableEntry entry = fileTable.CreateEntry(filename, EntryType.File);
AddFile(entry, buffer);
}
}
public void RemoveEntry(string path, EntryType type)
{
FileTableEntry entry = GetEntry(path, type);
FileTableEntry parent = entry.ParentEntry;
FileTableEntry previousSibling = entry.PreviousSiblingEntry;
FileTableEntry sibling = entry.SiblingEntry;
FileTableEntry child = entry.ChildEntry;
if (parent != null)
{
parent.ChildEntry = entry.FirstSiblingInChain;
if (parent.ChildEntry == entry)
{
parent.ChildEntry = null;
}
entry.FirstSiblingInChain.ParentEntry = parent;
entry.FirstSiblingInChain.Save(diskWriter);
parent.Save(diskWriter);
}
if (previousSibling != null)
{
previousSibling.SiblingEntry = sibling;
previousSibling.Save(diskWriter);
}
if (sibling != null)
{
sibling.PreviousSiblingEntry = previousSibling;
sibling.Save(diskWriter);
}
if (child != null)
{
child.ParentEntry = null;
child.Save(diskWriter);
}
}
protected void AddFile(FileTableEntry entry, byte[] buffer)
{
entry.DataSize = (uint)buffer.Length;
// Set the offset to the end of the file.
entry.DataOffset = (uint)archiveFile.Length;
entry.Save(bw);
WriteData(entry, buffer);
}
/// <summary>
/// Adds the specified entry to the end of the filetable, and updates the heder values.
/// </summary>
protected void AddEntryToTable(FileTableEntry entry)
{
// Set the offset accordingly.
entry.Offset = NextEntryOffset;
header.FileTableSize += (uint)entry.Size;
header.FileEntryCount++;
// Update the header and save the entry to disk.
WriteHeader();
entry.Save(diskWriter);
if (entry.ParentEntry != null)
{
entry.ParentEntry.Save(diskWriter);
}
if (entry.PreviousSiblingEntry != null)
{
entry.PreviousSiblingEntry.Save(diskWriter);
}
}