mirror of
https://github.com/moparisthebest/pacman
synced 2024-08-13 17:03:46 -04:00
fb4b422fc4
These new method signatures return and take handle objects to operate on so we can move away from the idea of one global handle in the API. There is also another important change and that deals with the setting of root and dbpaths. These are now done at initialization time instead of using setter methods. This allows the library to operate more safely knowing that paths won't change underneath it. Signed-off-by: Dan McGee <dan@archlinux.org>
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/*
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* alpm.c
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*
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* Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
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* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
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* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#ifdef HAVE_LIBCURL
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#include <curl/curl.h>
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#endif
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/* libalpm */
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#include "alpm.h"
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#include "alpm_list.h"
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#include "handle.h"
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#include "log.h"
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#include "util.h"
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/* Globals */
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enum _pmerrno_t pm_errno SYMEXPORT;
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extern pmhandle_t *handle;
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/** \addtogroup alpm_interface Interface Functions
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* @brief Functions to initialize and release libalpm
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* @{
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*/
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/** Initializes the library. This must be called before any other
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* functions are called.
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* @param root the root path for all filesystem operations
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* @param dbpath the absolute path to the libalpm database
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* @param err an optional variable to hold any error return codes
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* @return a context handle on success, NULL on error, err will be set if provided
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*/
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pmhandle_t SYMEXPORT *alpm_initialize(const char *root, const char *dbpath,
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enum _pmerrno_t *err)
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{
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enum _pmerrno_t myerr;
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const char *lf = "db.lck";
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size_t lockfilelen;
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pmhandle_t *myhandle = _alpm_handle_new();
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if(myhandle == NULL) {
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myerr = PM_ERR_MEMORY;
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goto cleanup;
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}
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if((myerr = _alpm_set_directory_option(root, &(myhandle->root), 1))) {
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goto cleanup;
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}
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if((myerr = _alpm_set_directory_option(dbpath, &(myhandle->dbpath), 1))) {
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goto cleanup;
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}
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lockfilelen = strlen(myhandle->dbpath) + strlen(lf) + 1;
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myhandle->lockfile = calloc(lockfilelen, sizeof(char));
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snprintf(myhandle->lockfile, lockfilelen, "%s%s", myhandle->dbpath, lf);
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if(_alpm_db_register_local(myhandle) == NULL) {
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myerr = PM_ERR_DB_CREATE;
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goto cleanup;
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}
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#ifdef ENABLE_NLS
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bindtextdomain("libalpm", LOCALEDIR);
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#endif
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#ifdef HAVE_LIBCURL
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curl_global_init(CURL_GLOBAL_SSL);
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myhandle->curl = curl_easy_init();
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#endif
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/* TODO temporary until global var removed */
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handle = myhandle;
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return myhandle;
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cleanup:
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_alpm_handle_free(myhandle);
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if(err && myerr) {
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*err = myerr;
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}
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return NULL;
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}
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/** Release the library. This should be the last alpm call you make.
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* After this returns, handle should be considered invalid and cannot be reused
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* in any way.
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* @param handle the context handle
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* @return 0 on success, -1 on error
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*/
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int SYMEXPORT alpm_release(pmhandle_t *myhandle)
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{
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pmdb_t *db;
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ASSERT(myhandle != NULL, return -1);
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/* close local database */
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db = myhandle->db_local;
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if(db) {
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db->ops->unregister(db);
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myhandle->db_local = NULL;
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}
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if(alpm_db_unregister_all(myhandle) == -1) {
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return -1;
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}
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_alpm_handle_free(myhandle);
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myhandle = NULL;
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/* TODO temporary until global var removed */
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handle = NULL;
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#ifdef HAVE_LIBCURL
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curl_global_cleanup();
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#endif
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return 0;
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}
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/** @} */
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/** @defgroup alpm_misc Miscellaneous Functions
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* @brief Various libalpm functions
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*/
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/* Get the version of library */
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const char SYMEXPORT *alpm_version(void) {
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return LIB_VERSION;
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}
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/* vim: set ts=2 sw=2 noet: */
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