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pacman/lib/libalpm/package.h
Dan McGee dff2d916ba Remove indirection on get_name and get_version operations
For a package to be loaded from any of our backends, these two fields
are always required upfront. Due to this fact, we don't need them to be
backend-specific operations and can just refer to the field directly.

Additionally, our static (and thus private) cache package accessors had
a NULL check on pkg before returning the relevant field. Eliminate this
since they only way they are ever called is via the packages attached
callback struct, which would have caused the NULL pointer dereference in
the first place.

Signed-off-by: Dan McGee <dan@archlinux.org>
2011-04-15 18:37:09 -05:00

149 lines
4.5 KiB
C

/*
* package.h
*
* Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2006 by David Kimpe <dnaku@frugalware.org>
* Copyright (c) 2005, 2006 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ALPM_PACKAGE_H
#define _ALPM_PACKAGE_H
#include <sys/types.h> /* off_t */
#include <time.h> /* time_t */
#include "alpm.h"
#include "db.h"
#include "signing.h"
typedef enum _pmpkgfrom_t {
PKG_FROM_FILE = 1,
PKG_FROM_LOCALDB,
PKG_FROM_SYNCDB
} pmpkgfrom_t;
/** Package operations struct. This struct contains function pointers to
* all methods used to access data in a package to allow for things such
* as lazy package intialization (such as used by the file backend). Each
* backend is free to define a stuct containing pointers to a specific
* implementation of these methods. Some backends may find using the
* defined default_pkg_ops struct to work just fine for their needs.
*/
struct pkg_operations {
const char *(*get_filename) (pmpkg_t *);
const char *(*get_desc) (pmpkg_t *);
const char *(*get_url) (pmpkg_t *);
time_t (*get_builddate) (pmpkg_t *);
time_t (*get_installdate) (pmpkg_t *);
const char *(*get_packager) (pmpkg_t *);
const char *(*get_md5sum) (pmpkg_t *);
const char *(*get_arch) (pmpkg_t *);
off_t (*get_size) (pmpkg_t *);
off_t (*get_isize) (pmpkg_t *);
pmpkgreason_t (*get_reason) (pmpkg_t *);
int (*has_scriptlet) (pmpkg_t *);
alpm_list_t *(*get_licenses) (pmpkg_t *);
alpm_list_t *(*get_groups) (pmpkg_t *);
alpm_list_t *(*get_depends) (pmpkg_t *);
alpm_list_t *(*get_optdepends) (pmpkg_t *);
alpm_list_t *(*get_conflicts) (pmpkg_t *);
alpm_list_t *(*get_provides) (pmpkg_t *);
alpm_list_t *(*get_replaces) (pmpkg_t *);
alpm_list_t *(*get_deltas) (pmpkg_t *);
alpm_list_t *(*get_files) (pmpkg_t *);
alpm_list_t *(*get_backup) (pmpkg_t *);
void *(*changelog_open) (pmpkg_t *);
size_t (*changelog_read) (void *, size_t, const pmpkg_t *, const void *);
int (*changelog_close) (const pmpkg_t *, void *);
/* still to add:
* checkmd5sum() ?
* compute_requiredby()
*/
};
/** The standard package operations struct. get fields directly from the
* struct itself with no abstraction layer or any type of lazy loading.
* The actual definition is in package.c so it can have access to the
* default accessor functions which are defined there.
*/
extern struct pkg_operations default_pkg_ops;
struct __pmpkg_t {
unsigned long name_hash;
char *filename;
char *name;
char *version;
char *desc;
char *url;
char *packager;
char *md5sum;
char *arch;
pmpgpsig_t pgpsig;
time_t builddate;
time_t installdate;
off_t size;
off_t isize;
off_t download_size;
int scriptlet;
pmpkgreason_t reason;
pmpkgfrom_t origin;
/* origin == PKG_FROM_FILE, use pkg->origin_data.file
* origin == PKG_FROM_*DB, use pkg->origin_data.db */
union {
pmdb_t *db;
char *file;
} origin_data;
pmdbinfrq_t infolevel;
alpm_list_t *licenses;
alpm_list_t *replaces;
alpm_list_t *groups;
alpm_list_t *files;
alpm_list_t *backup;
alpm_list_t *depends;
alpm_list_t *optdepends;
alpm_list_t *conflicts;
alpm_list_t *provides;
alpm_list_t *deltas;
alpm_list_t *delta_path;
alpm_list_t *removes; /* in transaction targets only */
struct pkg_operations *ops;
};
pmpkg_t* _alpm_pkg_new(void);
pmpkg_t *_alpm_pkg_dup(pmpkg_t *pkg);
void _alpm_pkg_free(pmpkg_t *pkg);
void _alpm_pkg_free_trans(pmpkg_t *pkg);
int _alpm_pkg_cmp(const void *p1, const void *p2);
int _alpm_pkg_compare_versions(pmpkg_t *local_pkg, pmpkg_t *pkg);
pmpkg_t *_alpm_pkg_find(alpm_list_t *haystack, const char *needle);
int _alpm_pkg_should_ignore(pmpkg_t *pkg);
#endif /* _ALPM_PACKAGE_H */
/* vim: set ts=2 sw=2 noet: */