internal void AddLink(FsStructureFile structureFile)
{
if (structureFile == null)
{
throw new ArgumentNullException("structureFile");
}
Monitor.Enter(((ICollection)Links).SyncRoot);
try
{
if (_links.Contains(structureFile))
{
return;
}
if (!ReferenceEquals(structureFile.Data, this))
{
throw new InvalidOperationException("File does not reference this data");
}
if (structureFile.Parent == null)
{
throw new InvalidOperationException("File does not have a parent");
}
_links.Add(structureFile);
}
finally { Monitor.Exit(((ICollection)Links).SyncRoot); }
}
internal void RemoveLink(FsStructureFile structureFile)
{
Monitor.Enter(((ICollection)Links).SyncRoot);
try
{
if (!_links.Contains(structureFile))
{
return;
}
if (structureFile.Parent != null)
{
throw new InvalidOperationException("File still has a parent");
}
if (ReferenceEquals(structureFile.Data, this))
{
throw new InvalidOperationException("File still references this data");
}
_links.Remove(structureFile);
}
finally { Monitor.Exit(((ICollection)Links).SyncRoot); }
}