fsys.h File Reference

(6c394a4c7)

#include <stdio.h>
#include <dpkg/file.h>

Include dependency graph for fsys.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	file_ondisk_id
	Stores information to uniquely identify an on-disk file. More...
struct	fsys_namenode
struct	fsys_namenode_list
struct	fsys_namenode_queue
	Queue of fsys_namenode entries. More...
struct	fsys_diversion
	When we deal with an ‘overridden’ file, every package except the overriding one is considered to contain the other file instead. More...
struct	fsys_hash_rev_iter

Functions
struct fsys_node_pkgs_iter *	fsys_node_pkgs_iter_new (struct fsys_namenode *fnn)
struct pkginfo *	fsys_node_pkgs_iter_next (struct fsys_node_pkgs_iter *iter)
void	fsys_node_pkgs_iter_free (struct fsys_node_pkgs_iter *iter)
void	fsys_hash_init (void)
void	fsys_hash_reset (void)
void	fsys_hash_report (FILE *file)
int	fsys_hash_entries (void)
struct fsys_hash_iter *	fsys_hash_iter_new (void)
struct fsys_namenode *	fsys_hash_iter_next (struct fsys_hash_iter *iter)
void	fsys_hash_iter_free (struct fsys_hash_iter *iter)
struct fsys_namenode *	fsys_hash_find_node (const char *filename, enum fsys_hash_find_flags flags)
void	fsys_hash_rev_iter_init (struct fsys_hash_rev_iter *iter, struct fsys_namenode_list *files)
struct fsys_namenode *	fsys_hash_rev_iter_next (struct fsys_hash_rev_iter *iter)
void	fsys_hash_rev_iter_abort (struct fsys_hash_rev_iter *iter)
const char *	dpkg_fsys_set_dir (const char *dir)
	Set current on-disk filesystem root directory.
const char *	dpkg_fsys_get_dir (void)
	Get current on-disk filesystem root directory.
char *	dpkg_fsys_get_path (const char *pathpart)
	Get a pathname to the current on-disk filesystem root directory.

Variables
enum DPKG_ATTR_ENUM_FLAGS	fsys_hash_find_flags
	Flags to fsys_hash_find_node().
	FHFF_NONE = 0
	No flags.
	FHFF_NO_COPY = DPKG_BIT(0)
	Do not need to copy filename.
	FHFF_NO_NEW = DPKG_BIT(1)
	Do not insert the item if it is not found, and return NULL.
enum DPKG_ATTR_ENUM_FLAGS	fsys_namenode_flags
	FNNF_NONE = 0
	No flags.
	FNNF_NEW_CONFF = DPKG_BIT(0)
	In the newconffiles list.
	FNNF_NEW_INARCHIVE = DPKG_BIT(1)
	In the new filesystem archive.
	FNNF_OLD_CONFF = DPKG_BIT(2)
	In the old package's conffiles list.
	FNNF_OBS_CONFF = DPKG_BIT(3)
	Obsolete conffile.
	FNNF_ELIDE_OTHER_LISTS = DPKG_BIT(4)
	Must remove from other packages' lists.
	FNNF_NO_ATOMIC_OVERWRITE = DPKG_BIT(5)
	>= 1 instance is a dir, cannot rename over.
	FNNF_PLACED_ON_DISK = DPKG_BIT(6)
	New file has been placed on the disk.
	FNNF_DEFERRED_FSYNC = DPKG_BIT(7)
	FNNF_DEFERRED_RENAME = DPKG_BIT(8)
	FNNF_FILTERED = DPKG_BIT(9)
	Path being filtered.
	FNNF_RM_CONFF_ON_UPGRADE = DPKG_BIT(10)
	Conffile removal requested by upgrade.

Function Documentation

dpkg_fsys_get_dir()

const char * dpkg_fsys_get_dir

(

void

)

Get current on-disk filesystem root directory.

This function will take care of initializing the directory if it has not been initialized before.

Returns

The current filesystem root directory.

Referenced by archivefiles(), conffderef(), dpkg_fsys_get_path(), and main().

Here is the caller graph for this function:

dpkg_fsys_get_path()

char * dpkg_fsys_get_path

(

const char *

pathpart

)

Get a pathname to the current on-disk filesystem root directory.

This function returns an allocated string, which should be freed with free(2).

Parameters

pathpart

The pathpart to append to the new pathname.

Returns

The newly allocated pathname.

References dpkg_fsys_get_dir(), path_skip_slash_dotslash(), and str_fmt().

Referenced by set_root().

Here is the call graph for this function:

Here is the caller graph for this function:

dpkg_fsys_set_dir()

const char * dpkg_fsys_set_dir

(

const char *

dir

)

Set current on-disk filesystem root directory.

This function can be used to set the directory to a new value, or to reset it to a default value if dir is NULL.

Parameters

dir	The new filesystem root directory, or NULL to set to default.

Returns

The new filesystem root directory.

References m_strdup(), and path_trim_slash_slashdot().

Referenced by set_instdir(), and set_root().

Here is the call graph for this function:

Here is the caller graph for this function:

fsys_hash_entries()

int fsys_hash_entries

(

void

)

Referenced by ensure_allinstfiles_available().

Here is the caller graph for this function:

fsys_hash_find_node()

struct fsys_namenode * fsys_hash_find_node	(	const char *	filename,
		enum fsys_hash_find_flags	flags
	)

References BINS, FHFF_NO_COPY, FHFF_NO_NEW, fsys_namenode::flags, internerr, fsys_namenode::name, fsys_namenode::next, nfmalloc(), path_skip_slash_dotslash(), and str_fnv_hash().

Referenced by ensure_diversions(), ensure_statoverrides(), pkg_conffiles_mark_old(), and tarobject().

Here is the call graph for this function:

Here is the caller graph for this function:

fsys_hash_init()

void fsys_hash_init

(

void

)

References BINS, fsys_namenode::file_ondisk_id, fsys_namenode::flags, fsys_namenode::newhash, fsys_namenode::next, and fsys_namenode::oldhash.

Referenced by deferred_remove(), and process_archive().

Here is the caller graph for this function:

fsys_hash_iter_free()

void fsys_hash_iter_free

(

struct fsys_hash_iter *

iter

)

Referenced by ensure_statoverrides().

Here is the caller graph for this function:

fsys_hash_iter_new()

struct fsys_hash_iter * fsys_hash_iter_new

(

void

)

References m_malloc(), fsys_hash_iter::namenode, and fsys_hash_iter::nbinn.

Referenced by ensure_statoverrides().

Here is the call graph for this function:

Here is the caller graph for this function:

fsys_hash_iter_next()

struct fsys_namenode * fsys_hash_iter_next

(

struct fsys_hash_iter *

iter

)

References BINS, fsys_hash_iter::namenode, fsys_hash_iter::nbinn, and fsys_namenode::next.

Referenced by ensure_statoverrides().

Here is the caller graph for this function:

fsys_hash_report()

void fsys_hash_report

(

FILE *

file

)

References BINS, m_malloc(), m_output(), and fsys_namenode::next.

Here is the call graph for this function:

fsys_hash_reset()

void fsys_hash_reset

(

void

)

Referenced by commandfd().

Here is the caller graph for this function:

fsys_hash_rev_iter_abort()

void fsys_hash_rev_iter_abort

(

struct fsys_hash_rev_iter *

iter

)

References fsys_hash_rev_iter_next().

Here is the call graph for this function:

fsys_hash_rev_iter_init()

void fsys_hash_rev_iter_init	(	struct fsys_hash_rev_iter *	iter,
		struct fsys_namenode_list *	files
	)

References m_malloc(), fsys_namenode_list::namenode, fsys_namenode_list::next, and fsys_hash_rev_iter::todo.

Here is the call graph for this function:

fsys_hash_rev_iter_next()

struct fsys_namenode * fsys_hash_rev_iter_next

(

struct fsys_hash_rev_iter *

iter

)

References fsys_namenode_list::namenode, fsys_namenode::next, fsys_namenode_list::next, and fsys_hash_rev_iter::todo.

Referenced by fsys_hash_rev_iter_abort().

Here is the caller graph for this function:

fsys_node_pkgs_iter_free()

void fsys_node_pkgs_iter_free

(

struct fsys_node_pkgs_iter *

iter

)

Referenced by dir_is_used_by_others(), filesavespackage(), and tarobject().

Here is the caller graph for this function:

fsys_node_pkgs_iter_new()

struct fsys_node_pkgs_iter * fsys_node_pkgs_iter_new

(

struct fsys_namenode *

fnn

)

References m_malloc(), fsys_namenode::packages, and fsys_node_pkgs_iter::pkg_node.

Referenced by dir_is_used_by_others(), filesavespackage(), and tarobject().

Here is the call graph for this function:

Here is the caller graph for this function:

fsys_node_pkgs_iter_next()

struct pkginfo * fsys_node_pkgs_iter_next

(

struct fsys_node_pkgs_iter *

iter

)

References pkg_list::next, pkg_list::pkg, and fsys_node_pkgs_iter::pkg_node.

Referenced by dir_is_used_by_others(), filesavespackage(), and tarobject().

Here is the caller graph for this function:

Variable Documentation

FHFF_NO_COPY

FHFF_NO_COPY = DPKG_BIT(0)

Do not need to copy filename.

Referenced by fsys_hash_find_node().

FHFF_NO_NEW

FHFF_NO_NEW = DPKG_BIT(1)

Do not insert the item if it is not found, and return NULL.

Referenced by fsys_hash_find_node().

FHFF_NONE

FHFF_NONE = 0

No flags.

Referenced by ensure_diversions(), ensure_statoverrides(), pkg_conffiles_mark_old(), and tarobject().

FNNF_DEFERRED_FSYNC

FNNF_DEFERRED_FSYNC = DPKG_BIT(7)

Referenced by tar_deferred_extract().

FNNF_DEFERRED_RENAME

FNNF_DEFERRED_RENAME = DPKG_BIT(8)

Referenced by tar_deferred_extract(), and tarobject().

FNNF_ELIDE_OTHER_LISTS

FNNF_ELIDE_OTHER_LISTS = DPKG_BIT(4)

Must remove from other packages' lists.

Referenced by tar_deferred_extract(), and tarobject().

FNNF_FILTERED

FNNF_FILTERED = DPKG_BIT(9)

Path being filtered.

Referenced by tarobject().

FNNF_NEW_CONFF

FNNF_NEW_CONFF = DPKG_BIT(0)

In the newconffiles list.

Referenced by cu_installnew(), and tarobject().

FNNF_NEW_INARCHIVE

FNNF_NEW_INARCHIVE = DPKG_BIT(1)

In the new filesystem archive.

Referenced by filesavespackage(), and tarobject().

FNNF_NO_ATOMIC_OVERWRITE

FNNF_NO_ATOMIC_OVERWRITE = DPKG_BIT(5)

>= 1 instance is a dir, cannot rename over.

Referenced by cu_installnew(), and tarobject().

FNNF_NONE

FNNF_NONE = 0

No flags.

FNNF_OBS_CONFF

FNNF_OBS_CONFF = DPKG_BIT(3)

Obsolete conffile.

Referenced by tarobject().

FNNF_OLD_CONFF

FNNF_OLD_CONFF = DPKG_BIT(2)

In the old package's conffiles list.

Referenced by pkg_conffiles_mark_old().

FNNF_PLACED_ON_DISK

FNNF_PLACED_ON_DISK = DPKG_BIT(6)

New file has been placed on the disk.

Referenced by cu_installnew(), tar_deferred_extract(), and tarobject().

FNNF_RM_CONFF_ON_UPGRADE

FNNF_RM_CONFF_ON_UPGRADE = DPKG_BIT(10)

Conffile removal requested by upgrade.

Referenced by tarobject().

fsys_hash_find_flags

enum DPKG_ATTR_ENUM_FLAGS fsys_hash_find_flags

Flags to fsys_hash_find_node().

fsys_namenode_flags

enum DPKG_ATTR_ENUM_FLAGS fsys_namenode_flags