xbps/lib/repository_pool.c

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/*-
* Copyright (c) 2009 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <xbps_api.h>
/**
* @file lib/repository_pool.c
* @brief Repository pool init/fini routines
* @defgroup repopool Repository pool init/fini functions
*/
static size_t repolist_refcnt;
static bool repolist_initialized;
int
xbps_repository_pool_init(void)
{
prop_dictionary_t dict = NULL;
prop_array_t array;
prop_object_t obj;
prop_object_iterator_t iter = NULL;
struct repository_pool *rpool;
size_t ntotal = 0, nmissing = 0;
char *plist;
int rv = 0;
if (repolist_initialized) {
repolist_refcnt++;
return 0;
}
SIMPLEQ_INIT(&rp_queue);
plist = xbps_xasprintf("%s/%s/%s", xbps_get_rootdir(),
XBPS_META_PATH, XBPS_REPOLIST);
if (plist == NULL) {
rv = EINVAL;
goto out;
}
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
free(plist);
rv = errno;
goto out;
}
free(plist);
array = prop_dictionary_get(dict, "repository-list");
if (array == NULL) {
rv = errno;
goto out;
}
iter = prop_array_iterator(array);
if (iter == NULL) {
rv = errno;
goto out;
}
while ((obj = prop_object_iterator_next(iter)) != NULL) {
ntotal++;
/*
* Iterate over the repository pool and add the dictionary
* for current repository into the queue.
*/
plist =
xbps_get_pkg_index_plist(prop_string_cstring_nocopy(obj));
if (plist == NULL) {
rv = EINVAL;
goto out;
}
rpool = malloc(sizeof(struct repository_pool));
if (rpool == NULL) {
rv = errno;
goto out;
}
rpool->rp_uri = prop_string_cstring(obj);
if (rpool->rp_uri == NULL) {
free(rpool);
free(plist);
rv = errno;
goto out;
}
rpool->rp_repod = prop_dictionary_internalize_from_file(plist);
if (rpool->rp_repod == NULL) {
free(rpool->rp_uri);
free(rpool);
free(plist);
if (errno == ENOENT) {
errno = 0;
nmissing++;
continue;
}
rv = errno;
goto out;
}
free(plist);
SIMPLEQ_INSERT_TAIL(&rp_queue, rpool, rp_entries);
}
if (ntotal - nmissing == 0)
goto out;
repolist_initialized = true;
repolist_refcnt = 1;
DPRINTF(("%s: initialized ok.\n", __func__));
out:
if (iter)
prop_object_iterator_release(iter);
if (dict)
prop_object_release(dict);
if (rv != 0)
xbps_repository_pool_release();
return rv;
}
void
xbps_repository_pool_release(void)
{
struct repository_pool *rpool;
if (--repolist_refcnt > 0)
return;
while ((rpool = SIMPLEQ_FIRST(&rp_queue)) != NULL) {
SIMPLEQ_REMOVE(&rp_queue, rpool, repository_pool, rp_entries);
prop_object_release(rpool->rp_repod);
free(rpool->rp_uri);
free(rpool);
}
repolist_refcnt = 0;
repolist_initialized = false;
DPRINTF(("%s: released ok.\n", __func__));
}