* Add utility class AutoPackageAttributes and AttributeCookie subclass
AutoPackageAttributeCookie.
* UnpackingAttributeCookie::Open() does now try to create a
AutoPackageAttributeCookie, when it doesn't find the attribute in the
PackageNode.
* Adjust UnpackingAttributeDirectoryCookie to also list auto-generated
attributes.
Currently the only supported attribute is "SYS:PACKAGE", which is the
file name of the package containing the node.
Added trivial implementation for AttributeCookie::Close() and
AttributeDirectoryCookie::Close() and removed the identical Close()
implementations in derived classes.
* Add ResolvableFamily and DependencyFamily classes for grouping equally
named resolvables/dependencies.
* Add hash tables to PackageFSRoot to track resolvables and
dependencies. That is done in {Add,Remove}Package.
* Resolvable does now have a list of Dependency objects, the ones it
satisfies.
* PackageLinksListener: Rename methods from *Directory*() to *Node*()
and change parameter to Node*. Also add a *Changed() method.
* PackageLinkDirectory: Update only when necessary and what is necessary
(currently only the self link).
* Add Node::Init() flags:
- NODE_FLAG_KEEP_NAME: Take over ownership of the name.
- NODE_FLAG_CONST_NAME: Don't copy the name -- it's a constant that
lives at least as long as the object.
* Remove Init() implementations in derived classes that just call the
base class version.
* Add PackageLinksListener interface. It is used by
PackageLink[s]Directory to notify a listener about changes.
* Volume does now implement PackageLinksListener and recursively adds/
removes package link directories.
This makes the package link directories appear at least. They are still
empty.
* Rename PackageFamily to PackageLinkDirectory and derive from
Directory.
* PackageLinksDirectory: Add the PackageLinkDirectory objects as
children and remove the no longer needed hash table (we use the
Directory's child hash table).
* Add PackageLinksDirectory Directory subclass. Currently not doing
anything.
* PackageFSRoot: Create a PackageLinksDirectory.
* Volume: Add/remove the package links directory for the system volume.
Move all package specifics from now abstract Directory to new derived
class UnpackingDirectory and adjust the Volume implementation
accordingly. This concludes the Node/Directory refactoring. Neither
class is aware of packages anymore.
* Move package related methods from Node to new interface UnpackingNode.
* LeafNode and Directory derive from UnpackingNode now.
* Adjust Volume implementation accordingly.
* Introduce interface AttributeDirectoryCookie and currently only
implementation UnpackingAttributeDirectoryCookie. This is an interface
for reading/rewinding an attribute directory.
* Add abstract virtual Node::OpenAttributeDirectory() method that
returns an AttributeDirectoryCookie and implement it for derived
classes.
* In the kernel interface attribute directory hooks use
AttributeDirectoryCookie now.
