Architecture database

Collaboration diagram for Architecture database:

Data Structures
struct	dpkg_arch

Enumerations
enum	dpkg_arch_type {   DPKG_ARCH_NONE , DPKG_ARCH_EMPTY , DPKG_ARCH_ILLEGAL , DPKG_ARCH_WILDCARD ,   DPKG_ARCH_ALL , DPKG_ARCH_NATIVE , DPKG_ARCH_FOREIGN , DPKG_ARCH_UNKNOWN }

Functions
const char *	dpkg_arch_name_is_illegal (const char *name) DPKG_ATTR_NONNULL(1)
	Verify if the architecture name is valid.
struct dpkg_arch *	dpkg_arch_find (const char *name)
	Retrieve the struct dpkg_arch for the given architecture.
struct dpkg_arch *	dpkg_arch_get (enum dpkg_arch_type type)
	Return the struct dpkg_arch corresponding to the architecture type.
struct dpkg_arch *	dpkg_arch_get_list (void)
	Return the complete list of architectures.
void	dpkg_arch_reset_list (void)
	Reset the list of architectures.
const char *	dpkg_arch_describe (const struct dpkg_arch *arch)
	Return a descriptive architecture name.
struct dpkg_arch *	dpkg_arch_add (const char *name)
	Add a new foreign dpkg_arch architecture.
void	dpkg_arch_unmark (const struct dpkg_arch *arch)
	Unmark a foreign dpkg_arch architecture.
void	dpkg_arch_load_list (void)
	Load the architecture database.
void	dpkg_arch_save_list (void)
	Save the architecture database.
void	varbuf_add_archqual (struct varbuf *vb, const struct dpkg_arch *arch)

Detailed Description

Enumeration Type Documentation

dpkg_arch_type

enum dpkg_arch_type

Enumerator
DPKG_ARCH_NONE
DPKG_ARCH_EMPTY
DPKG_ARCH_ILLEGAL
DPKG_ARCH_WILDCARD
DPKG_ARCH_ALL
DPKG_ARCH_NATIVE
DPKG_ARCH_FOREIGN
DPKG_ARCH_UNKNOWN

Function Documentation

dpkg_arch_add()

struct dpkg_arch * dpkg_arch_add

(

const char *

name

)

Add a new foreign dpkg_arch architecture.

References dpkg_arch_find(), DPKG_ARCH_FOREIGN, DPKG_ARCH_UNKNOWN, dpkg_arch::name, and dpkg_arch::type.

Referenced by dpkg_arch_load_list().

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dpkg_arch_describe()

const char * dpkg_arch_describe

(

const struct dpkg_arch *

arch

)

Return a descriptive architecture name.

References C_, DPKG_ARCH_EMPTY, DPKG_ARCH_NONE, dpkg_arch::name, and dpkg_arch::type.

dpkg_arch_find()

struct dpkg_arch * dpkg_arch_find

(

const char *

name

)

Retrieve the struct dpkg_arch for the given architecture.

Create a new structure for the architecture if it is not yet known from the system, in that case it will have type == DPKG_ARCH_UNKNOWN, if the architecture is illegal it will have type == DPKG_ARCH_ILLEGAL, if name is an empty string it will have type == DPKG_ARCH_EMPTY, and if it is NULL then it will have type == DPKG_ARCH_NONE.

Parameters

name	The architecture name.

References DPKG_ARCH_ILLEGAL, dpkg_arch_name_is_illegal(), DPKG_ARCH_UNKNOWN, dpkg_arch::name, dpkg_arch::next, and dpkg_arch::type.

Referenced by dpkg_arch_add(), f_architecture(), and f_dependency().

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dpkg_arch_get()

struct dpkg_arch * dpkg_arch_get

(

enum dpkg_arch_type

type

)

Return the struct dpkg_arch corresponding to the architecture type.

The function only returns instances for types which are unique. For forward-compatibility any unknown type will return NULL.

References DPKG_ARCH_ALL, DPKG_ARCH_EMPTY, DPKG_ARCH_FOREIGN, DPKG_ARCH_ILLEGAL, DPKG_ARCH_NATIVE, DPKG_ARCH_NONE, DPKG_ARCH_UNKNOWN, DPKG_ARCH_WILDCARD, internerr, and dpkg_arch::type.

Referenced by deparchsatisfied(), f_dependency(), pkg_blank(), printarch(), and process_archive().

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dpkg_arch_get_list()

struct dpkg_arch * dpkg_arch_get_list

(

void

)

Return the complete list of architectures.

In fact it returns the first item of the linked list and you can traverse the list by following arch->next until it's NULL.

Referenced by print_foreign_arches().

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dpkg_arch_load_list()

void dpkg_arch_load_list

(

void

)

Load the architecture database.

References dpkg_arch_add(), DPKG_DB_ARCH_FILE, dpkg_db_get_path(), and fgets_checked().

Referenced by modstatdb_open(), and print_foreign_arches().

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dpkg_arch_name_is_illegal()

const char * dpkg_arch_name_is_illegal

(

const char *

name

)

Verify if the architecture name is valid.

Returns NULL if the architecture name is valid. Otherwise it returns a string describing why it's not valid. Currently it ensures the name starts with an alphanumeric and is then composed of a combinations of hyphens and alphanumerics.

The function will abort if you pass it a NULL pointer.

Parameters

name	The architecture name to verify.

References _, and internerr.

Referenced by dpkg_arch_find(), f_architecture(), f_dependency(), pkg_spec_is_illegal(), and validate_archname().

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dpkg_arch_reset_list()

void dpkg_arch_reset_list

(

void

)

Reset the list of architectures.

Must be called before nffreeall() to ensure we don't point to unallocated memory.

References dpkg_arch::next.

Referenced by pkg_hash_reset().

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dpkg_arch_save_list()

void dpkg_arch_save_list

(

void

)

Save the architecture database.

References _, atomic_file_close(), atomic_file_commit(), atomic_file_free(), ATOMIC_FILE_MKPATH, atomic_file_new(), atomic_file_open(), atomic_file_sync(), dir_sync_path(), DPKG_ARCH_FOREIGN, DPKG_ARCH_NATIVE, DPKG_DB_ARCH_FILE, dpkg_db_get_dir(), dpkg_db_get_path(), dpkg_arch::name, dpkg_arch::next, ohshite(), and dpkg_arch::type.

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dpkg_arch_unmark()

void dpkg_arch_unmark

(

const struct dpkg_arch *

arch

)

Unmark a foreign dpkg_arch architecture.

References DPKG_ARCH_FOREIGN, DPKG_ARCH_UNKNOWN, dpkg_arch::next, and dpkg_arch::type.

varbuf_add_archqual()

void varbuf_add_archqual	(	struct varbuf *	vb,
		const struct dpkg_arch *	arch
	)

References DPKG_ARCH_EMPTY, DPKG_ARCH_NONE, dpkg_arch::name, dpkg_arch::type, varbuf_add_char(), and varbuf_add_str.

Referenced by pkg_infodb_get_file(), varbuf_add_pkgbin_name(), and varbufdependency().

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