sbuild::chroot_loopback Class Reference

A chroot stored in a file for loopback mounting. More...

#include <sbuild-chroot-loopback.h>

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List of all members.

Public Types

typedef chroot::error error
 Exception type.

Public Member Functions

virtual ~chroot_loopback ()
 The destructor.
virtual chroot::ptr clone () const
 Copy the chroot.
virtual chroot::ptr clone_session (std::string const &session_id, 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_file () const
 Get the file containing the chroot.
void set_file (std::string const &file)
 Set the file containing the chroot.
std::string const & get_chroot_type () const
 Get the type of the chroot.
virtual std::string get_path () const
 Get the path to 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_loopback ()
 The constructor.
 chroot_loopback (const chroot_loopback &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 file
 The file to use.

Friends

class chroot


Detailed Description

A chroot stored in a file for loopback mounting.

The file will be mounted on demand.


Member Function Documentation

sbuild::chroot::ptr chroot_loopback::clone (  )  const [virtual]

Copy the chroot.

This is a virtual copy constructor.

Returns:
a shared_ptr to the new copy of the chroot.

Implements sbuild::chroot.

References chroot_loopback().

Referenced by clone_source().

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sbuild::chroot::ptr chroot_loopback::clone_session ( std::string const &  name,
std::string const &  user,
bool  root 
) const [virtual]

Create a session chroot.

Parameters:
name the identifier (session_id) for the new session.
user the user creating the session.
root true if the user has root access, otherwise false.
Returns:
a session chroot.

Implements sbuild::chroot.

References chroot_loopback().

sbuild::chroot::ptr chroot_loopback::clone_source (  )  const [virtual]

Create a source chroot.

Returns:
a source chroot.

Implements sbuild::chroot.

References chroot_loopback(), and clone().

std::string const & chroot_loopback::get_file (  )  const

Get the file containing the chroot.

Returns:
the file.

References file.

Referenced by get_details(), get_keyfile(), and setup_env().

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void chroot_loopback::set_file ( std::string const &  file  ) 

Set the file containing the chroot.

Parameters:
file the file.

References sbuild::chroot::FILE_ABS, and sbuild::is_absname().

Referenced by set_keyfile().

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std::string const & chroot_loopback::get_chroot_type (  )  const [virtual]

Get the type of the chroot.

Returns:
the chroot type.

Implements sbuild::chroot.

std::string chroot_loopback::get_path (  )  const [virtual]

Get the path to the chroot.

This is the absolute path to the root of the chroot, and is typically the same as the mount location and location concatenated together, but is overridden by the chroot type if required.

Returns:
the path.

Implements sbuild::chroot.

References sbuild::chroot::get_mount_location().

void chroot_loopback::setup_env ( chroot const &  chroot,
environment env 
) const [virtual]

Set environment.

Set the environment that the setup scripts will see during execution.

Parameters:
chroot the chroot to use.
env the environment to set.

Implements sbuild::chroot.

References sbuild::environment::add(), get_file(), and sbuild::chroot::setup_env().

sbuild::chroot::session_flags chroot_loopback::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.

Parameters:
chroot the chroot to use.
Returns:
the session flags.

Implements sbuild::chroot.

References sbuild::chroot::SESSION_NOFLAGS.

void chroot_loopback::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.

Parameters:
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::stat::check_mode(), file, sbuild::chroot::FILE_NOTREG, sbuild::chroot::FILE_OWNER, sbuild::chroot::FILE_PERMS, sbuild::stat::is_regular(), sbuild::stat::PERM_OTHER_WRITE, sbuild::chroot::setup_session_info(), sbuild::chroot::SETUP_START, sbuild::chroot::SETUP_STOP, and sbuild::stat::uid().

void chroot_loopback::get_details ( chroot const &  chroot,
format_detail detail 
) const [protected, virtual]

Get detailed information about the chroot for output.

Parameters:
chroot the chroot to use.
detail the details to output to.

Implements sbuild::chroot.

References sbuild::format_detail::add(), file, sbuild::chroot::get_details(), and get_file().

void chroot_loopback::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.

Parameters:
chroot the chroot to use.
keyfile the keyfile to use.

Implements sbuild::chroot.

References get_file(), sbuild::chroot::get_keyfile(), sbuild::chroot::get_name(), and sbuild::basic_keyfile< K, P >::set_object_value().

void chroot_loopback::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.

Parameters:
chroot the chroot to use.
keyfile the keyfile to get the properties from.
used_keys a list of the keys used will be set.

Implements sbuild::chroot.

References sbuild::chroot::get_name(), sbuild::basic_keyfile< K, P >::get_object_value(), sbuild::keyfile_base::PRIORITY_REQUIRED, set_file(), and sbuild::chroot::set_keyfile().


The documentation for this class was generated from the following files:

Generated on Tue Jan 18 21:49:02 2011 for sbuild by  doxygen 1.5.6