xbps/lib/repository_pool.c
Juan RP 6256b34ccc Some changes that will appear in 0.5.0:
* Add proplib-0.4.1 source and use it in XBPS. This is to avoid
   an external dependency, so that we depend on the features of the
   internal library. This also means that proplib is not required anymore.

 * Added support to read/write gzip compressed plists by default, thanks
   to proplib-0.4 that gained new functionality.

That means that from now, XBPS will be able to write compressed gzip
plist files for all metadata related work. This will vastly reduce
bandwidth required for fetching remote repo's pkg index file and
binary packages.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20100420122238-zcb85rudt9p34e10
2010-04-20 14:22:38 +02:00

168 lines
4.0 KiB
C

/*-
* 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_zfile(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_zfile(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__));
}