A chroot stored on an LVM logical volume (LV). More...
#include <sbuild-chroot-lvm-snapshot.h>
Public Member Functions | |
virtual | ~chroot_lvm_snapshot () |
The destructor. | |
virtual chroot::ptr | clone () const |
Copy the chroot. | |
virtual chroot::ptr | clone_session (std::string const &session_id, std::string const &alias, std::string const &user, bool root) const |
Create a session chroot. | |
virtual chroot::ptr | clone_source () const |
Create a source chroot. | |
std::string const & | get_snapshot_device () const |
Get the logical volume snapshot device name. | |
void | set_snapshot_device (std::string const &snapshot_device) |
Set the logical volume snapshot device name. | |
std::string const & | get_snapshot_options () const |
Get the logical volume snapshot options. | |
void | set_snapshot_options (std::string const &snapshot_options) |
Set the logical volume snapshot options. | |
virtual std::string const & | get_chroot_type () const |
Get the type of the chroot. | |
virtual void | setup_env (chroot const &chroot, environment &env) const |
Set environment. | |
virtual session_flags | get_session_flags (chroot const &chroot) const |
Get the session flags of the chroot. | |
Protected Member Functions | |
chroot_lvm_snapshot () | |
The constructor. | |
chroot_lvm_snapshot (const chroot_lvm_snapshot &rhs) | |
The copy constructor. | |
virtual void | setup_lock (chroot::setup_type type, bool lock, int status) |
Unlock a chroot during setup. | |
virtual void | get_details (chroot const &chroot, format_detail &detail) const |
Get detailed information about the chroot for output. | |
virtual void | get_keyfile (chroot const &chroot, keyfile &keyfile) const |
Copy the chroot properties into a keyfile. | |
virtual void | set_keyfile (chroot &chroot, keyfile const &keyfile, string_list &used_keys) |
Set the chroot properties from a keyfile. | |
Private Attributes | |
std::string | snapshot_device |
LVM snapshot device name for lvcreate. | |
std::string | snapshot_options |
LVM snapshot options for lvcreate. | |
Friends | |
class | chroot |
A chroot stored on an LVM logical volume (LV).
A snapshot LV will be created and mounted on demand.
sbuild::chroot::ptr chroot_lvm_snapshot::clone | ( | ) | const [virtual] |
Copy the chroot.
This is a virtual copy constructor.
Implements sbuild::chroot.
References chroot_lvm_snapshot().
Referenced by clone_source().
sbuild::chroot::ptr chroot_lvm_snapshot::clone_session | ( | std::string const & | session_id, | |
std::string const & | alias, | |||
std::string const & | user, | |||
bool | root | |||
) | const [virtual] |
Create a session chroot.
session_id | the identifier (session_id) for the new session. | |
alias | used to initially identify the chroot. | |
user | the user creating the session. | |
root | true if the user has root access, otherwise false. |
Implements sbuild::chroot.
References chroot_lvm_snapshot().
sbuild::chroot::ptr chroot_lvm_snapshot::clone_source | ( | ) | const [virtual] |
std::string const & chroot_lvm_snapshot::get_chroot_type | ( | ) | const [virtual] |
void chroot_lvm_snapshot::get_details | ( | chroot const & | chroot, | |
format_detail & | detail | |||
) | const [protected, virtual] |
Get detailed information about the chroot for output.
chroot | the chroot to use. | |
detail | the details to output to. |
Reimplemented from sbuild::chroot_block_device_base.
References sbuild::_(), sbuild::format_detail::add(), get_snapshot_device(), get_snapshot_options(), snapshot_device, and snapshot_options.
void chroot_lvm_snapshot::get_keyfile | ( | chroot const & | chroot, | |
keyfile & | keyfile | |||
) | const [protected, virtual] |
Copy the chroot properties into a keyfile.
The keyfile group with the name of the chroot will be set; if it already exists, it will be removed before setting it.
chroot | the chroot to use. | |
keyfile | the keyfile to use. |
Reimplemented from sbuild::chroot_block_device_base.
References sbuild::chroot::get_name(), get_snapshot_device(), get_snapshot_options(), and sbuild::basic_keyfile< K, P >::set_object_value().
sbuild::chroot::session_flags chroot_lvm_snapshot::get_session_flags | ( | chroot const & | chroot | ) | const [virtual] |
Get the session flags of the chroot.
These determine how the Session controlling the chroot will operate.
chroot | the chroot to use. |
Reimplemented from sbuild::chroot_block_device_base.
std::string const & chroot_lvm_snapshot::get_snapshot_device | ( | ) | const |
Get the logical volume snapshot device name.
This is used by lvcreate.
References snapshot_device.
Referenced by get_details(), get_keyfile(), setup_env(), and setup_lock().
std::string const & chroot_lvm_snapshot::get_snapshot_options | ( | ) | const |
Get the logical volume snapshot options.
These are used by lvcreate.
References snapshot_options.
Referenced by get_details(), get_keyfile(), and setup_env().
void chroot_lvm_snapshot::set_keyfile | ( | chroot & | chroot, | |
keyfile const & | keyfile, | |||
string_list & | used_keys | |||
) | [protected, virtual] |
Set the chroot properties from a keyfile.
The chroot name must have previously been set, so that the correct keyfile group may be determined.
chroot | the chroot to use. | |
keyfile | the keyfile to get the properties from. | |
used_keys | a list of the keys used will be set. |
Reimplemented from sbuild::chroot_block_device_base.
References sbuild::chroot::get_name(), sbuild::basic_keyfile< K, P >::get_object_value(), sbuild::keyfile_base::PRIORITY_DEPRECATED, sbuild::keyfile_base::PRIORITY_DISALLOWED, sbuild::keyfile_base::PRIORITY_REQUIRED, set_snapshot_device(), and set_snapshot_options().
void chroot_lvm_snapshot::set_snapshot_device | ( | std::string const & | snapshot_device | ) |
Set the logical volume snapshot device name.
This is used by lvcreate.
snapshot_device | the device name. |
References sbuild::chroot::DEVICE_ABS, and sbuild::is_absname().
Referenced by set_keyfile().
void chroot_lvm_snapshot::set_snapshot_options | ( | std::string const & | snapshot_options | ) |
Set the logical volume snapshot options.
These are used by lvcreate.
snapshot_options | the options. |
Referenced by set_keyfile().
void chroot_lvm_snapshot::setup_env | ( | chroot const & | chroot, | |
environment & | env | |||
) | const [virtual] |
Set environment.
Set the environment that the setup scripts will see during execution.
chroot | the chroot to use. | |
env | the environment to set. |
Reimplemented from sbuild::chroot_block_device_base.
References sbuild::environment::add(), sbuild::basename(), get_snapshot_device(), and get_snapshot_options().
void chroot_lvm_snapshot::setup_lock | ( | chroot::setup_type | type, | |
bool | lock, | |||
int | status | |||
) | [protected, virtual] |
Unlock a chroot during setup.
The locking technique (if any) may vary depending upon the chroot type and setup stage. For example, during creation of an LVM snapshot a block device might require locking, but afterwards this will change to the new block device.
An error will be thrown on failure.
type | the type of setup being performed | |
lock | true to lock, false to unlock | |
status | the exit status of the setup commands (0 for success, nonzero for failure). |
Implements sbuild::chroot.
References sbuild::chroot::CHROOT_DEVICE, sbuild::chroot_block_device_base::device, sbuild::chroot::DEVICE_LOCK, sbuild::chroot::DEVICE_NOTBLOCK, sbuild::chroot::DEVICE_UNLOCK, sbuild::chroot_block_device_base::get_device(), get_snapshot_device(), sbuild::stat::is_block(), sbuild::lock::LOCK_EXCLUSIVE, sbuild::device_lock::set_lock(), sbuild::chroot::setup_session_info(), sbuild::chroot::SETUP_START, sbuild::chroot::SETUP_STOP, and sbuild::device_lock::unset_lock().