Volume::_RemoveNodeAndVNode(): Squash TODO

Only get/remove/put the vnode when the node is actually known to the
VFS. This does not only save unnecessary work, it also solves a
(temporary) deadlock -- at least partially. If another thread caused a
call to our get_vnode() hook just before, it would block on the volume
lock we're holding when adding/removing packages. The vnode would be
marked busy until the other thread's request was fulfilled and our call
to get_vnode() would block until timing out. Now we're calling
get_vnode() only, if we already know that the VFS already has a valid
vnode.

There still remains a race condition. If the VFS discards the vnode
right before we call get_vnode(), we essentially have the same situation
as before (i.e. us calling get_vnode() although the vnode is no longer
known to the VFS) with the same potential problem. For a real solution
we need a get_vnode() variant which can be told not to block.

Fix node handling on package addition/removal

* UnpackingLeafNode: Add a fFinalPackageNode attribute. It is set when
the node is about to be removed and will point to the node's previous
head package node and be used in its stead. From the perspective of
the FS hooks this leaves the node in an unchanged state.
* Unpacking[Leaf,Directory]Node:
- Add WillBeFirstPackageNode(), returning whether the given package
node would become the head package node when added.
- Add PrepareForRemoval() which removes all package nodes. In case of
UnpackingLeafNode it also sets fFinalPackageNode.
- Add CloneTransferPackageNodes(). It is only implemented for
UnpackingLeafNode. It clones the node, transfers all package nodes
to the clone and sets fFinalPackageNode on this node.
* Volume::_{Add,Remove}PackageNode(): Solved the following TODO: When a
package is added or removed and a file present in both the
added/removed package and another package with the version in the
former having precedence, we have to remove the node (leaving it
unchanged) and replace it by a new node. This prevents clients having
the node opened or mapped from suddenly seeing different data. It also
fixes unbalanced calls to PackageNode::VFSInit()/VFSUninit() which
would result in file descriptors to package files being leaked.

Fix package removal with skipped directories

Volume::_RemovePackageContentRootNode(): Check whether a directory
corresponding to the package directory does actually exist. This might
not be the case when the package directory has been skipped due to
clashing with a shine-through directory. Would crash in this case.

Fix typo

Fix handling of shine-through directories

* Add a new class ShineThroughDirectory for shine-through directories
instead of using UnpackingDirectory.
* Split up setting up the shine-through directories in two steps. First
the directories are only created. That happens before adding the
initial package domains. After publishing the root node we bind the
shine-through directories to the underlying directories.
* This makes adding a package directory with the same name as a
shine-through directory fail in _AddPackageNode() as originally
intended. Since we no longer want it to fail -- the package daemon
will copy the files in the respective directories as part of the
activation process -- we simply skip the directory now. Adjust
_AddPackageNode() and _AddPackageContentRootNode() accordingly.

Notify earlier when removing a package node

Volume::_RemovePackageNode(): Notify listeners before removing the last
package node from the node, . This prevents the size/last modified
indices from not finding the node anymore, since the node would return
a default value instead of the value it was added to the index with.

Add install path support to packagefs

Create a "BEOS:APP_SIG" index by default

Remove unused PackageNodeAttribute::fParent

Add last modified index support

* Add class LastModifiedIndex.
* Create and add an instance of it in Volume::Mount().

Add size index support

* Add class SizeIndex.
* Create and add an instance of it in Volume mount.

NodeListener::NodeChanged(): Provide old value

* Add interface OldNodeAttributes an instance of which is passed to
NodeListener::NodeChanged() to provide the old attribute values
(currently only modification time and file size).
* Also extend PackageLinksListener::PackageLinkNodeChanged() with a
OldNodeAttributes parameter.
* Add OldNodeAttributes implementations for PackageLinkSymlink (inner
class OldAttributes) and UnpackingNode (OldUnpackageNodeAttributes).

Add Query class and query management in Volume

Add NameIndex class and create instance in Volume

Add Index base class and index table in Volume

Add a global node listener mechanism

Fix loading the resolvable compatible version

Add missing "cache" shine-through directory

Extract architecture from package file

Small cleanup

Add compatible version support to packagefs

Introduce a pre-release version component

* The version string pattern is now:
<major>[.<minor>[.<micro>]][-<pre>][-<release>]
* Introduce B_HPKG_ATTRIBUTE_ID_PACKAGE_VERSION_PRE_RELEASE package
attribute.
* Add "preRelease" field to BPackageVersionData.
* Add "preRelease" property to BPackageVersion and packagefs's Version.
* Adjust package reader and writer code accordingly.

Paranoia: Handle unknown mount type

Volume:Mount(): Better failure output

Also use the FATAL() instead of the ERROR() macro, so something is
printed also with debugging disabled.

Allow symlinks in the packages directory

Add TODOs regarding broken add/remove behavior

Fix package link updates/node monitoring

* 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).

Missing locking when adding/removing package nodes

Add node monitoring for package link directories

Reordered methods to match declaration order

Volume: Remove all package contents on destruction

Fix Volume::_RemovePackageLinksNode()

Don't use _RemoveNode() as it also removes the node from its parent.

If none is given pick volume name by mount type

Add Node::Init() flags parameter

* 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 package link directories to system volume

* 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.

Add yet empty package-links directory

* Add PackageLinksDirectory Directory subclass. Currently not doing
anything.
* PackageFSRoot: Create a PackageLinksDirectory.
* Volume: Add/remove the package links directory for the system volume.

Pull derived UnpackingDirectory out of Directory

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.

Rename LeafNode to UnpackingLeafNode

Remove package related dependencies from Node

* Move package related methods from Node to new interface UnpackingNode.
* LeafNode and Directory derive from UnpackingNode now.
* Adjust Volume implementation accordingly.

WIP towards packagefs package links support

* 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.

Rename Package "name" property to "fileName"

Remove debug output

Add support for shine-through directories

* 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.

Largish adjustments to PackagerReaderImpl and package attribute
handling:
* package attributes are now compatible with the low level attribute
handling of other HPKG attributes (such that 'package dump' now shows
package attributes, too)
* dropped type names from hpkg format, the attributes were identified
by IDs already and this simplifies the code considerably. Type names
are now handled in BLowLevelPackageHandler only.
* instead of rolling their own mechanism, high-level package attributes
handling is now implemented via a corresonding set of
AttributeHandler-subclasses
* adjusted package writer to only write package attributes that are
needed (empty ones are left out)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40466 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented repository writing:
* fleshed out RepositoryWriterImpl
* renamed BRepositoryHeader to BRepositoryInfo (in accordance with
BPackageInfo)
* adjusted BRepositoryInfo to be able to parse itself from a
driver_settings file
* added package_repo binary (only 'create' works as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40405 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented reading of package info attributes from hpkg file
* added kernel-compatible datatypes for reading package info attribute
values (PackageInfoAttributeValue.h) - these will be used at a later
stage by the package-fs to transport those attributes to userland
when asked to do so (by ioctl)
* implemented parsing of package info attributes in PackageReaderImpl
* added support for compressed package attribute section to
PackageReaderImpl
* completed the writing of package info attributes in PackageWriterImpl
and fixed a couple of bugs exposed by parsing
* adjusted 'package list' to show the package info attributes as they
are found


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40354 a95241bf-73f2-0310-859d-f6bbb57e9c96

* follow hint by Axel: drop FDCloser and use shared class
FileDescriptorCloser instead


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40330 a95241bf-73f2-0310-859d-f6bbb57e9c96

Refactored hpkg implementation to provide some separation between
public and private API (still far from ideal, but a start):
* moved several HPKG-classes into the public namespace BPackageKit::HPKG
* added fImpl-wrappers around PackageReader and PackageWriter to hide
most of the gory details
* adjusted 'package'-binary and packagefs accordingly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40320 a95241bf-73f2-0310-859d-f6bbb57e9c96

More work on package kit:
* added class BPackageInfo, which contains packaging attributes of
a package (the values relevant for package management)
* implemented parser (mostly) for reading a BPackageInfo from a config
file (.PackageInfo) in order to pass them on to the PackageWriter
when creating a package
* pulled hpkg-related stuff from bin/package into the package kit
* adjusted packagefs-Volume to skip .PackageInfo files when populating
the mountpoint, as those files shouldn't appear as part of an
activated package


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40301 a95241bf-73f2-0310-859d-f6bbb57e9c96

* round up the value put into st_blocks
* inject modification time of package folder into root folder of
package-fs


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40230 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Volume::Mount(): fix KDL in case the volume-name was missing from
the mount parameters
* packagefs_read_stat(): put some sane value into st_blocks

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40227 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added support to packagefs for picking up its volume name from the
mount parameters - there doesn't seem to be a way for a filesystem
to access the path to which it was mounted, is there?


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40225 a95241bf-73f2-0310-859d-f6bbb57e9c96

* rename 'domain'-parameter to 'packages', as that's less generic

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40221 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implement fetching of initial domain from the mount parameters in
order to be able to mount packages from somewhere else than
'/boot/common/packages' (squashes a TODO)
* squashed another TODO about needing to remove nodes of already
installed packages if anything goes wrong during the activation
of a package domain
* fix what to me looks like a bug in Volume::AddPackageDomainJob::Do(),
fDomain is accessed unconditionally in the destructor, so NULLing
it here is bad (it doesn't make sense from a reference-passing POV
either). The problem never showed as this code is never being executed
currently (no way to add additional package domains as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40214 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unnecessary inclusions of <boot/kernel_args.h> in private kernel
headers and respectively added includes in source files.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixed gcc2 build and warnings.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34255 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made PackageDomain BReferenceable.
* LeafNode/Directory: We make sure that the added PackageNode with the newest
modified time is always at the head of the list. This is the package node
whose stat, attribute data and, in case of non-directory nodes, also content
data will be returned. This results in a well-defined algorithm what happens
when multiple directories contain the same file -- the newest file wins.
* Resolved most TODOs regarding error handling when adding a package domain,
package, or package node.
* Volume::_AddPackageContentRootNode(): Fixed the back tracking loop. It would
just continue with siblings of the given root node, causing them to be added
more than once, leading to data structure corruption.
* We now listen to the packages directory. When packages are added or removed
their contents is automatically added/removed to the file system. We don't
listen to the package files themselves yet. I.e. modifying an "installed"
package in place respectively copying/downloading it there will probably not
work correctly.
Due to a limitation in the userlandfs the mechanism works correctly only when
using the kernel module. When running the userland version, one better leaves
the packages directory alone while packagefs is mounted.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34172 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Extract the attributes from the package files and attach them as
PackageNodeAttribute to the PackageNodes.
* Implemented the attribute FS interface hooks.
* Made Package and PackageNode BReferenceable.
* Fixed the reference management for Node.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34119 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Package: Added Open() (and matching Close()) method, which opens the package
file once, tracking an open count.
* Added VFSInit()/VFSUninit() methods to the Node and PackageNode class
hierarchies, called by the {get,put}_vnode() PackageFile implements them to
set up/tear down access to the file data. Also added a Read() reading the
data.
* Implemented the open(), free_cookie(), and read() FS hooks for real. Reading
files works now. Executing doesn't yet -- it requires working with
IORequests in a way not supported by the userlandfs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34102 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Filter out write permissions.
* We now report more correct stat data. The information are retrieved from the
Package* objects.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34098 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented intermediate base class PackageLeafNode for PackageFile and
PackageSymlink with a "fat" interface.
* Replaced File and Symlink by fat class LeafNode.
* Added Package* object management to Directory and LeafNode.
* Implemented packagefs_read_symlink(), so symlinks work now.
* Added some missing locking the kernel interface.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34096 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress:
* The FS parses package files from "/boot/common/packages" and builds an
node tree representation of the contained entries. Merging directories should
work. Lots of other stuff is missing yet, though.
* Implemented the hooks for directory entry lookup and iteration. So it's
possible to see the contents of the FS at least.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34088 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented the most basic functionality required to cleanly mount and unmount
(at least in userlandfs).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34069 a95241bf-73f2-0310-859d-f6bbb57e9c96

Volume::_RemoveNodeAndVNode(): Squash TODO

Only get/remove/put the vnode when the node is actually known to the
VFS. This does not only save unnecessary work, it also solves a
(temporary) deadlock -- at least partially. If another thread caused a
call to our get_vnode() hook just before, it would block on the volume
lock we're holding when adding/removing packages. The vnode would be
marked busy until the other thread's request was fulfilled and our call
to get_vnode() would block until timing out. Now we're calling
get_vnode() only, if we already know that the VFS already has a valid
vnode.

There still remains a race condition. If the VFS discards the vnode
right before we call get_vnode(), we essentially have the same situation
as before (i.e. us calling get_vnode() although the vnode is no longer
known to the VFS) with the same potential problem. For a real solution
we need a get_vnode() variant which can be told not to block.

Fix node handling on package addition/removal

* UnpackingLeafNode: Add a fFinalPackageNode attribute. It is set when
the node is about to be removed and will point to the node's previous
head package node and be used in its stead. From the perspective of
the FS hooks this leaves the node in an unchanged state.
* Unpacking[Leaf,Directory]Node:
- Add WillBeFirstPackageNode(), returning whether the given package
node would become the head package node when added.
- Add PrepareForRemoval() which removes all package nodes. In case of
UnpackingLeafNode it also sets fFinalPackageNode.
- Add CloneTransferPackageNodes(). It is only implemented for
UnpackingLeafNode. It clones the node, transfers all package nodes
to the clone and sets fFinalPackageNode on this node.
* Volume::_{Add,Remove}PackageNode(): Solved the following TODO: When a
package is added or removed and a file present in both the
added/removed package and another package with the version in the
former having precedence, we have to remove the node (leaving it
unchanged) and replace it by a new node. This prevents clients having
the node opened or mapped from suddenly seeing different data. It also
fixes unbalanced calls to PackageNode::VFSInit()/VFSUninit() which
would result in file descriptors to package files being leaked.

Fix package removal with skipped directories

Volume::_RemovePackageContentRootNode(): Check whether a directory
corresponding to the package directory does actually exist. This might
not be the case when the package directory has been skipped due to
clashing with a shine-through directory. Would crash in this case.

Fix typo

Fix handling of shine-through directories

* Add a new class ShineThroughDirectory for shine-through directories
instead of using UnpackingDirectory.
* Split up setting up the shine-through directories in two steps. First
the directories are only created. That happens before adding the
initial package domains. After publishing the root node we bind the
shine-through directories to the underlying directories.
* This makes adding a package directory with the same name as a
shine-through directory fail in _AddPackageNode() as originally
intended. Since we no longer want it to fail -- the package daemon
will copy the files in the respective directories as part of the
activation process -- we simply skip the directory now. Adjust
_AddPackageNode() and _AddPackageContentRootNode() accordingly.

Notify earlier when removing a package node

Volume::_RemovePackageNode(): Notify listeners before removing the last
package node from the node, . This prevents the size/last modified
indices from not finding the node anymore, since the node would return
a default value instead of the value it was added to the index with.

Add install path support to packagefs

Create a "BEOS:APP_SIG" index by default

Remove unused PackageNodeAttribute::fParent

Add last modified index support

* Add class LastModifiedIndex.
* Create and add an instance of it in Volume::Mount().

Add size index support

* Add class SizeIndex.
* Create and add an instance of it in Volume mount.

NodeListener::NodeChanged(): Provide old value

* Add interface OldNodeAttributes an instance of which is passed to
NodeListener::NodeChanged() to provide the old attribute values
(currently only modification time and file size).
* Also extend PackageLinksListener::PackageLinkNodeChanged() with a
OldNodeAttributes parameter.
* Add OldNodeAttributes implementations for PackageLinkSymlink (inner
class OldAttributes) and UnpackingNode (OldUnpackageNodeAttributes).

Add Query class and query management in Volume

Add NameIndex class and create instance in Volume

Add Index base class and index table in Volume

Add a global node listener mechanism

Fix loading the resolvable compatible version

Add missing "cache" shine-through directory

Extract architecture from package file

Small cleanup

Add compatible version support to packagefs

Introduce a pre-release version component

* The version string pattern is now:
<major>[.<minor>[.<micro>]][-<pre>][-<release>]
* Introduce B_HPKG_ATTRIBUTE_ID_PACKAGE_VERSION_PRE_RELEASE package
attribute.
* Add "preRelease" field to BPackageVersionData.
* Add "preRelease" property to BPackageVersion and packagefs's Version.
* Adjust package reader and writer code accordingly.

Paranoia: Handle unknown mount type

Volume:Mount(): Better failure output

Also use the FATAL() instead of the ERROR() macro, so something is
printed also with debugging disabled.

Allow symlinks in the packages directory

Add TODOs regarding broken add/remove behavior

Fix package link updates/node monitoring

* 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).

Missing locking when adding/removing package nodes

Add node monitoring for package link directories

Reordered methods to match declaration order

Volume: Remove all package contents on destruction

Fix Volume::_RemovePackageLinksNode()

Don't use _RemoveNode() as it also removes the node from its parent.

If none is given pick volume name by mount type

Add Node::Init() flags parameter

* 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 package link directories to system volume

* 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.

Add yet empty package-links directory

* Add PackageLinksDirectory Directory subclass. Currently not doing
anything.
* PackageFSRoot: Create a PackageLinksDirectory.
* Volume: Add/remove the package links directory for the system volume.

Pull derived UnpackingDirectory out of Directory

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.

Rename LeafNode to UnpackingLeafNode

Remove package related dependencies from Node

* Move package related methods from Node to new interface UnpackingNode.
* LeafNode and Directory derive from UnpackingNode now.
* Adjust Volume implementation accordingly.

WIP towards packagefs package links support

* 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.

Rename Package "name" property to "fileName"

Remove debug output

Add support for shine-through directories

* 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.

Largish adjustments to PackagerReaderImpl and package attribute
handling:
* package attributes are now compatible with the low level attribute
handling of other HPKG attributes (such that 'package dump' now shows
package attributes, too)
* dropped type names from hpkg format, the attributes were identified
by IDs already and this simplifies the code considerably. Type names
are now handled in BLowLevelPackageHandler only.
* instead of rolling their own mechanism, high-level package attributes
handling is now implemented via a corresonding set of
AttributeHandler-subclasses
* adjusted package writer to only write package attributes that are
needed (empty ones are left out)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40466 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented repository writing:
* fleshed out RepositoryWriterImpl
* renamed BRepositoryHeader to BRepositoryInfo (in accordance with
BPackageInfo)
* adjusted BRepositoryInfo to be able to parse itself from a
driver_settings file
* added package_repo binary (only 'create' works as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40405 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented reading of package info attributes from hpkg file
* added kernel-compatible datatypes for reading package info attribute
values (PackageInfoAttributeValue.h) - these will be used at a later
stage by the package-fs to transport those attributes to userland
when asked to do so (by ioctl)
* implemented parsing of package info attributes in PackageReaderImpl
* added support for compressed package attribute section to
PackageReaderImpl
* completed the writing of package info attributes in PackageWriterImpl
and fixed a couple of bugs exposed by parsing
* adjusted 'package list' to show the package info attributes as they
are found


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40354 a95241bf-73f2-0310-859d-f6bbb57e9c96

* follow hint by Axel: drop FDCloser and use shared class
FileDescriptorCloser instead


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40330 a95241bf-73f2-0310-859d-f6bbb57e9c96

Refactored hpkg implementation to provide some separation between
public and private API (still far from ideal, but a start):
* moved several HPKG-classes into the public namespace BPackageKit::HPKG
* added fImpl-wrappers around PackageReader and PackageWriter to hide
most of the gory details
* adjusted 'package'-binary and packagefs accordingly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40320 a95241bf-73f2-0310-859d-f6bbb57e9c96

More work on package kit:
* added class BPackageInfo, which contains packaging attributes of
a package (the values relevant for package management)
* implemented parser (mostly) for reading a BPackageInfo from a config
file (.PackageInfo) in order to pass them on to the PackageWriter
when creating a package
* pulled hpkg-related stuff from bin/package into the package kit
* adjusted packagefs-Volume to skip .PackageInfo files when populating
the mountpoint, as those files shouldn't appear as part of an
activated package


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40301 a95241bf-73f2-0310-859d-f6bbb57e9c96

* round up the value put into st_blocks
* inject modification time of package folder into root folder of
package-fs


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40230 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Volume::Mount(): fix KDL in case the volume-name was missing from
the mount parameters
* packagefs_read_stat(): put some sane value into st_blocks

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40227 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added support to packagefs for picking up its volume name from the
mount parameters - there doesn't seem to be a way for a filesystem
to access the path to which it was mounted, is there?


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40225 a95241bf-73f2-0310-859d-f6bbb57e9c96

* rename 'domain'-parameter to 'packages', as that's less generic

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40221 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implement fetching of initial domain from the mount parameters in
order to be able to mount packages from somewhere else than
'/boot/common/packages' (squashes a TODO)
* squashed another TODO about needing to remove nodes of already
installed packages if anything goes wrong during the activation
of a package domain
* fix what to me looks like a bug in Volume::AddPackageDomainJob::Do(),
fDomain is accessed unconditionally in the destructor, so NULLing
it here is bad (it doesn't make sense from a reference-passing POV
either). The problem never showed as this code is never being executed
currently (no way to add additional package domains as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40214 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unnecessary inclusions of <boot/kernel_args.h> in private kernel
headers and respectively added includes in source files.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixed gcc2 build and warnings.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34255 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made PackageDomain BReferenceable.
* LeafNode/Directory: We make sure that the added PackageNode with the newest
modified time is always at the head of the list. This is the package node
whose stat, attribute data and, in case of non-directory nodes, also content
data will be returned. This results in a well-defined algorithm what happens
when multiple directories contain the same file -- the newest file wins.
* Resolved most TODOs regarding error handling when adding a package domain,
package, or package node.
* Volume::_AddPackageContentRootNode(): Fixed the back tracking loop. It would
just continue with siblings of the given root node, causing them to be added
more than once, leading to data structure corruption.
* We now listen to the packages directory. When packages are added or removed
their contents is automatically added/removed to the file system. We don't
listen to the package files themselves yet. I.e. modifying an "installed"
package in place respectively copying/downloading it there will probably not
work correctly.
Due to a limitation in the userlandfs the mechanism works correctly only when
using the kernel module. When running the userland version, one better leaves
the packages directory alone while packagefs is mounted.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34172 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Extract the attributes from the package files and attach them as
PackageNodeAttribute to the PackageNodes.
* Implemented the attribute FS interface hooks.
* Made Package and PackageNode BReferenceable.
* Fixed the reference management for Node.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34119 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Package: Added Open() (and matching Close()) method, which opens the package
file once, tracking an open count.
* Added VFSInit()/VFSUninit() methods to the Node and PackageNode class
hierarchies, called by the {get,put}_vnode() PackageFile implements them to
set up/tear down access to the file data. Also added a Read() reading the
data.
* Implemented the open(), free_cookie(), and read() FS hooks for real. Reading
files works now. Executing doesn't yet -- it requires working with
IORequests in a way not supported by the userlandfs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34102 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Filter out write permissions.
* We now report more correct stat data. The information are retrieved from the
Package* objects.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34098 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented intermediate base class PackageLeafNode for PackageFile and
PackageSymlink with a "fat" interface.
* Replaced File and Symlink by fat class LeafNode.
* Added Package* object management to Directory and LeafNode.
* Implemented packagefs_read_symlink(), so symlinks work now.
* Added some missing locking the kernel interface.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34096 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress:
* The FS parses package files from "/boot/common/packages" and builds an
node tree representation of the contained entries. Merging directories should
work. Lots of other stuff is missing yet, though.
* Implemented the hooks for directory entry lookup and iteration. So it's
possible to see the contents of the FS at least.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34088 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented the most basic functionality required to cleanly mount and unmount
(at least in userlandfs).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34069 a95241bf-73f2-0310-859d-f6bbb57e9c96