Implementation class for ISO MediaHandler. More...

#include <MediaISO.h>

Inheritance diagram for zypp::media::MediaISO:

Public Member Functions
	MediaISO (const Url &url_r, const Pathname &attach_point_hint_r)
virtual	~MediaISO ()
virtual bool	isAttached () const
	True if media is attached.
Protected Member Functions
virtual void	attachTo (bool next=false)
	Call concrete handler to attach the media.
virtual void	releaseFrom (const std::string &ejectDev="")
	Call concrete handler to release the media.
virtual void	getFile (const Pathname &filename) const
	Call concrete handler to provide file below attach point.
virtual void	getDir (const Pathname &dirname, bool recurse_r) const
	Call concrete handler to provide directory content (not recursive!) below attach point.
virtual void	getDirInfo (std::list< std::string > &retlist, const Pathname &dirname, bool dots=true) const
	Call concrete handler to provide a content list of directory on media via retlist.
virtual void	getDirInfo (filesystem::DirContent &retlist, const Pathname &dirname, bool dots=true) const
	Basically the same as getDirInfo above.
virtual bool	getDoesFileExist (const Pathname &filename) const
	check if a file exists
Private Member Functions
std::string	findUnusedLoopDevice ()
Private Attributes
Pathname	_isofile
MediaAccessId	_isosource
std::string	_filesystem

Detailed Description

Implementation class for ISO MediaHandler.

See also:: MediaHandler

Definition at line 35 of file MediaISO.h.

Constructor & Destructor Documentation

zypp::media::MediaISO::MediaISO	(	const Url &	url_r,
		const Pathname &	attach_point_hint_r
	)

Definition at line 48 of file MediaISO.cc.

zypp::media::MediaISO::~MediaISO ( ) [virtual]

Definition at line 125 of file MediaISO.cc.

Member Function Documentation

string zypp::media::MediaISO::findUnusedLoopDevice ( ) [private]

Definition at line 152 of file MediaISO.cc.

void zypp::media::MediaISO::attachTo ( bool next = false ) [protected, virtual]

Call concrete handler to attach the media.

Asserted that not already attached, and attachPoint is a directory.

Parameters:

next	try next available device in turn until end of device list is reached (for media which are accessible through multiple devices like cdroms).

Exceptions:

MediaException

Todo:: make this thread-safe - another thread might pick up the same device

Implements zypp::media::MediaHandler.

Definition at line 178 of file MediaISO.cc.

void zypp::media::MediaISO::releaseFrom ( const std::string & ejectDev = "" ) [protected, virtual]

Call concrete handler to release the media.

If eject is true, and the media is used in one handler instance only, physically eject the media (i.e. CD-ROM).

Asserted that media is attached.

Parameters:

ejectDev Device to eject. None if empty.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 294 of file MediaISO.cc.

void zypp::media::MediaISO::getFile ( const Pathname & filename ) const [protected, virtual]

Call concrete handler to provide file below attach point.

Default implementation provided, that returns whether a file is located at 'localRoot + filename'.

Asserted that media is attached.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 320 of file MediaISO.cc.

void zypp::media::MediaISO::getDir	(	const Pathname &	dirname,
		bool	recurse_r
	)		const `[protected, virtual]`

Call concrete handler to provide directory content (not recursive!) below attach point.

Return E_not_supported_by_media if media does not support retrieval of directory content.

Default implementation provided, that returns whether a directory is located at 'localRoot + dirname'.

Asserted that media is attached.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 326 of file MediaISO.cc.

void zypp::media::MediaISO::getDirInfo	(	std::list< std::string > &	retlist,
		const Pathname &	dirname,
		bool	dots = `true`
	)		const `[protected, virtual]`

Call concrete handler to provide a content list of directory on media via retlist.

If dots is false entries starting with '.' are not reported.

Return E_not_supported_by_media if media does not support retrieval of directory content.

Default implementation provided, that returns the content of a directory at 'localRoot + dirnname' retrieved via 'readdir'.

Asserted that media is attached and retlist is empty.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 333 of file MediaISO.cc.

void zypp::media::MediaISO::getDirInfo	(	filesystem::DirContent &	retlist,
		const Pathname &	dirname,
		bool	dots = `true`
	)		const `[protected, virtual]`

Basically the same as getDirInfo above.

The content list is returned as filesystem::DirContent, which includes name and filetype of each directory entry. Retrieving the filetype usg. requires an additional ::stat call for each entry, thus it's more expensive than a simple readdir.

Asserted that media is attached and retlist is empty.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 341 of file MediaISO.cc.

bool zypp::media::MediaISO::getDoesFileExist ( const Pathname & filename ) const [protected, virtual]

check if a file exists

Asserted that url is a file and not a dir.

Exceptions:

MediaException

Implements zypp::media::MediaHandler.

Definition at line 348 of file MediaISO.cc.