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.
* Introduce interface AttributeCookie and currently only implementation
UnpackingAttributeCookie. This is an interface for reading/stat()ing
an attribute.
* Add abstract virtual Node::OpenAttribute() method that returns an
AttributeCookie and implemented it for derived classes.
* In the kernel interface attribute hooks use AttributeCookie now. The
attribute directory hooks are unchanged.
* Introduce Version class representing a version.
* Introduce Dependency and Resolvable class and add lists of either to
Package.
* Parse package attributes and add dependencies and resolvables to
Package.
* Add a mount type to Volume and add a respective mount parameter
"mount-type" (values "system", "common", "home", "custom"). Also
implies the shine-through type, if that's not given.
* Introduce class PackageFamily which groups equally named and versioned
packages.
* Add class PackageFSRoot. Each instance represents a possible file
system root (separate roots for different chroot environments). Tracks
Volumes belonging to the same root and their packages.
We don't need to explicitly track the covered/covering nodes per mount
after all. In fs_unmount() we iterate through all vnodes multiple times
anyway and can deal with the covers/covered_by vnodes there. Also, the
root vnode doesn't need to be handled specially anymore.
* packagefs_mount(): Initialize the fs_volume earlier, so it is more
usuable in Volume::Mount().
* The new mount parameter "shine-through" can be used to specify which
shine-through mode shall be used. Can be "system", "common", "home",
and "none". Depending on the setting it is decided which directories
of the underlying file system are bind-mounted on top of ours.
* Fix infinite loop in Volume::_RemovePackageContent().
* Use the RETURN_ERROR() macro in more places to help with debugging.
* Add support function vfs_get_mount_point(), so a file system can get
its own mount point (i.e. the node it covers). Re-added
fs_mount::covers_vnode for that purpose -- the root node isn't know to
the VFS before the mount() hook returns.
* Add function vfs_bind_mount_directory() which bind-mounts a directory
to another. The Vnode::covers/covered_by mechanism is used, so this
isn't true bind-mounting, but sufficient for what we need ATM and
cheaper as well. The vnodes connected thus aren't tracked yet, which
is needed for undoing the connection when unmounting.
* get_vnode_name(): Don't use dir_read() to read the directory. Since we
have already resolved vnode to the covered vnode, we don't want the
dirents to be "fixed" to refer to the covering nodes. Such a vnode
simply wouldn't be found.
* Introduce Vnode flags for covered and covering. Can be used as a quick
check when one doesn't already hold sVnodeLock.
* Rename resolve_mount_point_to_volume_root() to
resolve_vnode_to_covering_vnode().
* Adjust all code that deals with transitions between mount points and
volume root vnodes to generally support covered/covering vnodes.
After failing to start the input server by signature, the fallback
didn't append the input server name to the servers directory returned by
find_directory().
Pull AttributeDataReader and FDDataReader implementations out of
DataReader.cpp into own source files. Thus we can avoid dependencies
(e.g. to fs_attr code) we don't need/want.
On a non-Haiku build platform map openat(), fstat(), and
FileDescriptorCloser to _kern_open(), _kern_read_stat(), and
BuildFileDescriptorCloser respectively, so symlinks can be opened and
stat()ed.
PackageWriterImpl:
* Iterate through attributes using fs_read_attr_dir() instead of
readdir(). Makes it work correctly on the build platform.
* On the build platform look up the system licenses in their source
directory rather than based on find_directory().
Since USES_BE_API is set by default on all libroot_build sources, the
error.cpp
was broken, since it wouldn't be exempt from the error mapping. Define
the
BUILDING_HAIKU_ERROR_MAPPER for it directly in the Jamfile, now.
For the xattr/BSD (untyped) attribute backend implement fs_fopen_attr()
and fs_close_attr(). A new AttributeDescriptor is created. It is
currently used in write_pos() only.
