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/* Copyright © 2005-2013 Roger Leigh <rleigh@debian.org>
*
* schroot is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* schroot is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*
*********************************************************************/
#ifndef SBUILD_CHROOT_FACET_LVM_SNAPSHOT_H
#define SBUILD_CHROOT_FACET_LVM_SNAPSHOT_H
#include <sbuild/chroot/facet/block-device-base.h>
#include <sbuild/chroot/facet/session-setup.h>
#include <sbuild/chroot/facet/source-setup.h>
namespace sbuild
{
namespace chroot
{
namespace facet
{
/**
* A chroot stored on an LVM logical volume (LV).
*
* A snapshot LV will be created and mounted on demand.
*/
class lvm_snapshot : public block_device_base,
public session_setup,
public source_setup
{
public:
/// A shared_ptr to a chroot facet object.
typedef std::shared_ptr<lvm_snapshot> ptr;
/// A shared_ptr to a const chroot facet object.
typedef std::shared_ptr<const lvm_snapshot> const_ptr;
protected:
/// The constructor.
lvm_snapshot ();
/// The copy constructor.
lvm_snapshot (const lvm_snapshot& rhs);
void
set_chroot (chroot& chroot,
bool copy);
friend class chroot;
public:
/// The destructor.
virtual ~lvm_snapshot ();
virtual std::string const&
get_name () const;
/**
* Create a chroot facet.
*
* @returns a shared_ptr to the new chroot facet.
*/
static ptr
create ();
facet::ptr
clone () const;
/**
* Get the logical volume snapshot device name. This is used by
* lvcreate.
*
* @returns the device name.
*/
std::string const&
get_snapshot_device () const;
/**
* Set the logical volume snapshot device name. This is used by
* lvcreate.
*
* @param snapshot_device the device name.
*/
void
set_snapshot_device (const std::string& snapshot_device);
/**
* Get the logical volume snapshot options. These are used by
* lvcreate.
*
* @returns the options.
*/
std::string const&
get_snapshot_options () const;
/**
* Set the logical volume snapshot options. These are used by
* lvcreate.
*
* @param snapshot_options the options.
*/
void
set_snapshot_options (const std::string& snapshot_options);
virtual void
setup_env (environment& env) const;
virtual session_flags
get_session_flags () const;
protected:
virtual void
setup_lock (chroot::setup_type type,
bool lock,
int status);
virtual void
get_details (format_detail& detail) const;
virtual void
get_used_keys (string_list& used_keys) const;
virtual void
get_keyfile (keyfile& keyfile) const;
virtual void
set_keyfile (const keyfile& keyfile);
virtual void
chroot_session_setup (const chroot& parent,
const std::string& session_id,
const std::string& alias,
const std::string& user,
bool root);
virtual void
chroot_source_setup (const chroot& parent);
private:
/// LVM snapshot device name for lvcreate.
std::string snapshot_device;
/// LVM snapshot options for lvcreate.
std::string snapshot_options;
};
}
}
}
#endif /* SBUILD_CHROOT_FACET_LVM_SNAPSHOT_H */
/*
* Local Variables:
* mode:C++
* End:
*/
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