delta.c File Reference

#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "delta.h"
#include "error.h"
#include "util.h"
#include "log.h"
#include "alpm_list.h"
#include "alpm.h"

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Functions
const char *	alpm_delta_get_from (pmdelta_t *delta)
const char *	alpm_delta_get_to (pmdelta_t *delta)
unsigned long	alpm_delta_get_size (pmdelta_t *delta)
const char *	alpm_delta_get_filename (pmdelta_t *delta)
const char *	alpm_delta_get_md5sum (pmdelta_t *delta)
unsigned long	_alpm_delta_path_size (alpm_list_t *deltas)
unsigned long	_alpm_delta_path_size_uncached (alpm_list_t *deltas)
alpm_list_t *	_alpm_shortest_delta_path (alpm_list_t *deltas, const char *from, const char *to)
pmdelta_t *	_alpm_delta_parse (char *line)

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Function Documentation

pmdelta_t* _alpm_delta_parse

(

char *

line

)

Parses the string representation of a pmdelta_t object.

This function assumes that the string is in the correct format.

Parameters:

line

the string to parse

Returns:

A pointer to the new pmdelta_t object

Definition at line 234 of file delta.c.

References CALLOC, DLT_FILENAME_LEN, DLT_MD5SUM_LEN, DLT_VERSION_LEN, __pmdelta_t::filename, __pmdelta_t::from, __pmdelta_t::md5sum, PM_ERR_MEMORY, RET_ERR, __pmdelta_t::size, and __pmdelta_t::to.

Referenced by _alpm_db_read().

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unsigned long _alpm_delta_path_size

(

alpm_list_t *

deltas

)

Calculates the combined size of a list of delta files.

Parameters:

deltas

the list of pmdelta_t * objects

Returns:

the combined size

Definition at line 96 of file delta.c.

References alpm_list_getdata(), alpm_list_next(), and __pmdelta_t::size.

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unsigned long _alpm_delta_path_size_uncached

(

alpm_list_t *

deltas

)

Calculates the combined size of a list of delta files that are not in the cache.

Parameters:

deltas

the list of pmdelta_t * objects

Returns:

the combined size

Definition at line 118 of file delta.c.

References _alpm_filecache_find(), alpm_list_getdata(), alpm_list_next(), __pmdelta_t::filename, FREE, and __pmdelta_t::size.

Referenced by alpm_pkg_download_size().

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alpm_list_t* _alpm_shortest_delta_path	(	alpm_list_t *	deltas,
		const char *	from,
		const char *	to
	)

Calculates the shortest path from one version to another.

The shortest path is defined as the path with the smallest combined size, not the length of the path.

Parameters:

	deltas	the list of pmdelta_t * objects that a package has
	from	the version to start from
	to	the version to end at

Returns:

the list of pmdelta_t * objects that has the smallest size. NULL (the empty list) is returned if there is no path between the versions.

Definition at line 216 of file delta.c.

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