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pacman/lib/libalpm/db.h
Allan McRae 21833d90e2 Merge desc and depends files in local db
Whenever depends is needed from the local db, so is desc.  The only
disadvantage to merging them is the additional time taken to read the
depends entries when they are not needed.  As depends is in general
relatively small, the additional time taken to read it in will be
negligable.  Also, merging these files will speed up local database
access due to less file seeks.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 21:42:41 -06:00

104 lines
3.3 KiB
C

/*
* db.h
*
* Copyright (c) 2006-2010 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 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_DB_H
#define _ALPM_DB_H
#include "alpm.h"
#include <limits.h>
#include <time.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* Database entries */
typedef enum _pmdbinfrq_t {
INFRQ_BASE = 1,
INFRQ_DESC = (1 << 1),
INFRQ_FILES = (1 << 2),
INFRQ_SCRIPTLET = (1 << 3),
INFRQ_DSIZE = (1 << 4),
/* ALL should be info stored in the package or database */
INFRQ_ALL = 0x1F
} pmdbinfrq_t;
struct db_operations {
int (*populate) (pmdb_t *);
void (*unregister) (pmdb_t *);
};
/* Database */
struct __pmdb_t {
char *treename;
/* do not access directly, use _alpm_db_path(db) for lazy access */
char *_path;
int pkgcache_loaded;
int grpcache_loaded;
/* also indicates whether we are RO or RW */
int is_local;
alpm_list_t *pkgcache;
alpm_list_t *grpcache;
alpm_list_t *servers;
struct db_operations *ops;
};
/* db.c, database general calls */
void _alpm_db_free(pmdb_t *db);
const char *_alpm_db_path(pmdb_t *db);
int _alpm_db_cmp(const void *d1, const void *d2);
alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles);
pmdb_t *_alpm_db_register_local(void);
pmdb_t *_alpm_db_register_sync(const char *treename);
void _alpm_db_unregister(pmdb_t *db);
pmdb_t *_alpm_db_new(const char *treename, int is_local);
/* be_*.c, backend specific calls */
int _alpm_local_db_populate(pmdb_t *db);
int _alpm_local_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq);
int _alpm_local_db_prepare(pmdb_t *db, pmpkg_t *info);
int _alpm_local_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq);
int _alpm_local_db_remove(pmdb_t *db, pmpkg_t *info);
int _alpm_sync_db_populate(pmdb_t *db);
int _alpm_sync_db_read(pmdb_t *db, struct archive *archive, struct archive_entry *entry);
/* cache bullshit */
/* packages */
int _alpm_db_load_pkgcache(pmdb_t *db);
void _alpm_db_free_pkgcache(pmdb_t *db);
int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg);
int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg);
alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db);
int _alpm_db_ensure_pkgcache(pmdb_t *db, pmdbinfrq_t infolevel);
pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target);
/* groups */
int _alpm_db_load_grpcache(pmdb_t *db);
void _alpm_db_free_grpcache(pmdb_t *db);
alpm_list_t *_alpm_db_get_grpcache(pmdb_t *db);
pmgrp_t *_alpm_db_get_grpfromcache(pmdb_t *db, const char *target);
#endif /* _ALPM_DB_H */
/* vim: set ts=2 sw=2 noet: */