#include <sync_union_aufs.h>

Inheritance diagram for publish::SyncUnionAufs:

Collaboration diagram for publish::SyncUnionAufs:

Public Member Functions
	SyncUnionAufs (SyncMediator *mediator, const std::string &rdonly_path, const std::string &union_path, const std::string &scratch_path)

void	Traverse ()

bool	SupportsHardlinks () const

Public Member Functions inherited from publish::SyncUnion
	SyncUnion (AbstractSyncMediator *mediator, const std::string &rdonly_path, const std::string &union_path, const std::string &scratch_path)

virtual	~SyncUnion ()

virtual bool	Initialize ()

virtual void	PostUpload ()

SharedPtr< SyncItem >	CreateSyncItem (const std::string &relative_parent_path, const std::string &filename, const SyncItemType entry_type) const

std::string	rdonly_path () const

std::string	union_path () const

std::string	scratch_path () const

bool	IsInitialized () const

Protected Member Functions
bool	IsWhiteoutEntry (SharedPtr< SyncItem > entry) const

bool	IsOpaqueDirectory (SharedPtr< SyncItem > directory) const

bool	IgnoreFilePredicate (const std::string &parent_dir, const std::string &filename)

std::string	UnwindWhiteoutFilename (SharedPtr< SyncItem > entry) const

Protected Member Functions inherited from publish::SyncUnion
virtual void	PreprocessSyncItem (SharedPtr< SyncItem > entry) const

virtual void	ProcessRegularFile (const std::string &parent_dir, const std::string &filename)

virtual bool	ProcessDirectory (const std::string &parent_dir, const std::string &dir_name)

virtual bool	ProcessDirectory (SharedPtr< SyncItem > entry)

virtual bool	ProcessUnmaterializedDirectory (SharedPtr< SyncItem > entry)

virtual void	ProcessSymlink (const std::string &parent_dir, const std::string &link_name)

virtual void	EnterDirectory (const std::string &parent_dir, const std::string &dir_name)

virtual void	LeaveDirectory (const std::string &parent_dir, const std::string &dir_name)

void	ProcessCharacterDevice (const std::string &parent_dir, const std::string &filename)

void	ProcessBlockDevice (const std::string &parent_dir, const std::string &filename)

void	ProcessFifo (const std::string &parent_dir, const std::string &filename)

void	ProcessSocket (const std::string &parent_dir, const std::string &filename)

void	ProcessFile (SharedPtr< SyncItem > entry)

Private Attributes
std::set< std::string >	ignore_filenames_

std::string	whiteout_prefix_

Additional Inherited Members
Protected Attributes inherited from publish::SyncUnion
std::string	rdonly_path_

std::string	scratch_path_

std::string	union_path_

AbstractSyncMediator *	mediator_

Detailed Description

Syncing a cvmfs repository by the help of an overlaid AUFS read-write volume.

Definition at line 22 of file sync_union_aufs.h.

Constructor & Destructor Documentation

publish::SyncUnionAufs::SyncUnionAufs	(	SyncMediator *	mediator,
		const std::string &	rdonly_path,
		const std::string &	union_path,
		const std::string &	scratch_path
	)

Definition at line 17 of file sync_union_aufs.cc.

Member Function Documentation

bool publish::SyncUnionAufs::IgnoreFilePredicate	(	const std::string &	parent_dir,
		const std::string &	filename
	)

protectedvirtual

Union file systems may use some special files for bookkeeping. They must not show up in to repository and are ignored by the recursion. Note: This needs to be up-called!

Parameters

parent	directory in which file resides
filename	to decide whether to ignore or not

Returns: true if file should be ignored, otherwise false

Reimplemented from publish::SyncUnion.

Definition at line 70 of file sync_union_aufs.cc.

Referenced by Traverse().

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bool publish::SyncUnionAufs::IsOpaqueDirectory ( SharedPtr< SyncItem > directory ) const

protectedvirtual

Union file systems use opaque directories to fully support rmdir e.g: $ rm -rf directory $ mkdir directory This would produce an opaque directory whose contents are NOT merged with the underlying directory in the read-only branch

Parameters

directory the directory to check for opacity

Returns: true if directory is opaque, otherwise false

Implements publish::SyncUnion.

Definition at line 61 of file sync_union_aufs.cc.

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bool publish::SyncUnionAufs::IsWhiteoutEntry ( SharedPtr< SyncItem > entry ) const

protectedvirtual

Checks if given file is supposed to be whiteout. These files indicate that a specific file has been deleted.

Parameters

filename the filename to check

Returns: true if filename seems to be whiteout otherwise false

Implements publish::SyncUnion.

Definition at line 56 of file sync_union_aufs.cc.

bool publish::SyncUnionAufs::SupportsHardlinks ( ) const

inlinevirtual

Reimplemented from publish::SyncUnion.

Definition at line 28 of file sync_union_aufs.h.

void publish::SyncUnionAufs::Traverse ( )

virtual

Main routine, process scratch space

Implements publish::SyncUnion.

Definition at line 33 of file sync_union_aufs.cc.

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string publish::SyncUnionAufs::UnwindWhiteoutFilename ( SharedPtr< SyncItem > entry ) const

protectedvirtual

Whiteout files may have special naming conventions. This method "unmangles" them and retrieves the original file name

Parameters

filename the filename as in the scratch directory

Returns: the original filename of the scratched out file in CVMFS repository

Implements publish::SyncUnion.

Definition at line 65 of file sync_union_aufs.cc.

Member Data Documentation

std::set<std::string> publish::SyncUnionAufs::ignore_filenames_

private

Definition at line 38 of file sync_union_aufs.h.

Referenced by IgnoreFilePredicate(), and SyncUnionAufs().

std::string publish::SyncUnionAufs::whiteout_prefix_

private

Definition at line 39 of file sync_union_aufs.h.

Referenced by IsWhiteoutEntry(), SyncUnionAufs(), and UnwindWhiteoutFilename().

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

/home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/sync_union_aufs.h
/home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/sync_union_aufs.cc

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation