Load metadata API.

Datové struktry
struct	_cr_Metadata

Definice maker
#define	CR_LOAD_METADATA_OK   0
#define	CR_LOAD_METADATA_ERR   1

Definice typů
typedef struct _cr_Metadata *	cr_Metadata

Výčty
enum	cr_HashTableKey { CR_HT_KEY_DEFAULT, CR_HT_KEY_HASH = CR_HT_KEY_DEFAULT, CR_HT_KEY_NAME, CR_HT_KEY_FILENAME }

Funkce
cr_Metadata	cr_new_metadata (cr_HashTableKey key, int use_single_chunk, GSList *pkglist)
void	cr_destroy_metadata (cr_Metadata md)
int	cr_load_xml_metadata (cr_Metadata md, struct cr_MetadataLocation *ml)
int	cr_locate_and_load_xml_metadata (cr_Metadata md, const char *repopath)

Detailní popis

Dokumentace k definicím maker

#define CR_LOAD_METADATA_ERR   1

Error while loading metadata

Definice je uvedena na řádku 65 v souboru load_metadata.h.

#define CR_LOAD_METADATA_OK   0

Metadata loaded successfully

Definice je uvedena na řádku 64 v souboru load_metadata.h.

Dokumentace definic typů

typedef struct _cr_Metadata* cr_Metadata

Pointer to structure with loaded metadata

Definice je uvedena na řádku 61 v souboru load_metadata.h.

Dokumentace výčtových typů

enum cr_HashTableKey

Package attribute used as key in the hashtable.

Hodnoty výčtu:

CR_HT_KEY_DEFAULT	default = pkg hash
CR_HT_KEY_HASH	pkg hash (cr_Package ->pkgId)
CR_HT_KEY_NAME	pkg name (cr_Package ->name)
CR_HT_KEY_FILENAME	pkg filename (cr_Package ->location_href)

Definice je uvedena na řádku 36 v souboru load_metadata.h.

Dokumentace funkcí

void cr_destroy_metadata

(

cr_Metadata

md

)

Destroy metadata.

Parametry

md	cr_Metadata object

int cr_load_xml_metadata	(	cr_Metadata	md,
		struct cr_MetadataLocation *	ml
	)

Load metadata from the specified location.

Parametry

md	metadata object
ml	metadata location

Návratová hodnota

return code CR_LOAD_METADATA_OK or CR_LOAD_METADATA_ERR

int cr_locate_and_load_xml_metadata	(	cr_Metadata	md,
		const char *	repopath
	)

Locate and load metadata from the specified path.

Parametry

md	metadata object
repopath	path to repo (to directory with repodata/ subdir)

Návratová hodnota

return code CR_LOAD_METADATA_OK or CR_LOAD_METADATA_ERR

cr_Metadata cr_new_metadata	(	cr_HashTableKey	key,
		int	use_single_chunk,
		GSList *	pkglist
	)

Create new (empty) metadata hashtable. It is NOT thread safe to load data into single cr_Metadata from multiple threads. But non modifying access to the loaded data in cr_Metadata is thread safe.

Parametry

key	key specifies which value will be (is) used as key in hash table
use_single_chunk	use only one string chunk (all loaded packages share one string chunk in the cr_Metadata object) Packages will not be standalone objects. This option leads to less memory consumption.
pkglist	load only packages which base filename is in this list. If param is NULL all packages are loaded.

Návratová hodnota

empty cr_Metadata object