Move db cache handling functions
These will be needed for the handling of both local and sync database caches, so put them in a common location. Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Allan McRae
parent
0909a72000
commit
96e277cfd9
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@ -353,248 +353,6 @@ static struct pkg_operations local_pkg_ops = {
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.changelog_close = _cache_changelog_close,
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};
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/* Returns a new package cache from db.
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* It frees the cache if it already exists.
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*/
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int _alpm_db_load_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(-1);
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}
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_alpm_db_free_pkgcache(db);
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_alpm_log(PM_LOG_DEBUG, "loading package cache for repository '%s'\n",
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db->treename);
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if(db->ops->populate(db) == -1) {
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_alpm_log(PM_LOG_DEBUG,
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"failed to load package cache for repository '%s'\n", db->treename);
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return(-1);
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}
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db->pkgcache_loaded = 1;
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return(0);
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}
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void _alpm_db_free_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded) {
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return;
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}
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_alpm_log(PM_LOG_DEBUG, "freeing package cache for repository '%s'\n",
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db->treename);
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alpm_list_free_inner(db->pkgcache, (alpm_list_fn_free)_alpm_pkg_free);
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alpm_list_free(db->pkgcache);
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db->pkgcache_loaded = 0;
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_alpm_db_free_grpcache(db);
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}
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alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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if(!db->pkgcache_loaded) {
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_alpm_db_load_pkgcache(db);
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}
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/* hmmm, still NULL ?*/
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if(!db->pkgcache) {
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_alpm_log(PM_LOG_DEBUG, "warning: pkgcache is NULL for db '%s'\n", db->treename);
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}
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return(db->pkgcache);
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}
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/* "duplicate" pkg then add it to pkgcache */
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int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
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{
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pmpkg_t *newpkg;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded || pkg == NULL) {
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return(-1);
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}
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newpkg = _alpm_pkg_dup(pkg);
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if(newpkg == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "adding entry '%s' in '%s' cache\n",
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alpm_pkg_get_name(newpkg), db->treename);
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db->pkgcache = alpm_list_add_sorted(db->pkgcache, newpkg, _alpm_pkg_cmp);
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_alpm_db_free_grpcache(db);
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return(0);
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}
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int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg)
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{
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void *vdata;
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pmpkg_t *data;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded || pkg == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "removing entry '%s' from '%s' cache\n",
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alpm_pkg_get_name(pkg), db->treename);
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db->pkgcache = alpm_list_remove(db->pkgcache, pkg, _alpm_pkg_cmp, &vdata);
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data = vdata;
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if(data == NULL) {
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/* package not found */
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_alpm_log(PM_LOG_DEBUG, "cannot remove entry '%s' from '%s' cache: not found\n",
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alpm_pkg_get_name(pkg), db->treename);
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return(-1);
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}
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_alpm_pkg_free(data);
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_alpm_db_free_grpcache(db);
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return(0);
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}
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pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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alpm_list_t *pkgcache = _alpm_db_get_pkgcache(db);
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if(!pkgcache) {
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_alpm_log(PM_LOG_DEBUG, "warning: failed to get '%s' from NULL pkgcache\n",
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target);
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return(NULL);
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}
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return(_alpm_pkg_find(pkgcache, target));
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}
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/* Returns a new group cache from db.
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*/
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int _alpm_db_load_grpcache(pmdb_t *db)
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{
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alpm_list_t *lp;
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "loading group cache for repository '%s'\n",
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db->treename);
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for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) {
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const alpm_list_t *i;
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pmpkg_t *pkg = lp->data;
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for(i = alpm_pkg_get_groups(pkg); i; i = i->next) {
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const char *grpname = i->data;
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alpm_list_t *j;
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pmgrp_t *grp = NULL;
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int found = 0;
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/* first look through the group cache for a group with this name */
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for(j = db->grpcache; j; j = j->next) {
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grp = j->data;
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if(strcmp(grp->name, grpname) == 0
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&& !alpm_list_find_ptr(grp->packages, pkg)) {
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grp->packages = alpm_list_add(grp->packages, pkg);
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found = 1;
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break;
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}
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}
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if(found) {
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continue;
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}
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/* we didn't find the group, so create a new one with this name */
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grp = _alpm_grp_new(grpname);
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grp->packages = alpm_list_add(grp->packages, pkg);
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db->grpcache = alpm_list_add(db->grpcache, grp);
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}
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}
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db->grpcache_loaded = 1;
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return(0);
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}
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void _alpm_db_free_grpcache(pmdb_t *db)
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{
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alpm_list_t *lg;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->grpcache_loaded) {
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return;
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}
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_alpm_log(PM_LOG_DEBUG, "freeing group cache for repository '%s'\n",
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db->treename);
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for(lg = db->grpcache; lg; lg = lg->next) {
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_alpm_grp_free(lg->data);
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lg->data = NULL;
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}
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FREELIST(db->grpcache);
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db->grpcache_loaded = 0;
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}
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alpm_list_t *_alpm_db_get_grpcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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if(!db->grpcache_loaded) {
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_alpm_db_load_grpcache(db);
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}
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return(db->grpcache);
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}
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pmgrp_t *_alpm_db_get_grpfromcache(pmdb_t *db, const char *target)
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{
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alpm_list_t *i;
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ALPM_LOG_FUNC;
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if(db == NULL || target == NULL || strlen(target) == 0) {
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return(NULL);
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}
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for(i = _alpm_db_get_grpcache(db); i; i = i->next) {
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pmgrp_t *info = i->data;
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if(strcmp(info->name, target) == 0) {
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return(info);
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}
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}
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return(NULL);
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}
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/* create list of directories in db */
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static int dirlist_from_tar(const char *archive, alpm_list_t **dirlist)
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{
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243
lib/libalpm/db.c
243
lib/libalpm/db.c
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@ -41,6 +41,7 @@
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#include "handle.h"
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#include "alpm.h"
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#include "package.h"
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#include "group.h"
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struct db_operations default_db_ops = {
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.populate = _alpm_db_populate,
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@ -562,6 +563,248 @@ pmdb_t *_alpm_db_register_sync(const char *treename)
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return(db);
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}
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/* Returns a new package cache from db.
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* It frees the cache if it already exists.
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*/
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int _alpm_db_load_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(-1);
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}
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_alpm_db_free_pkgcache(db);
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_alpm_log(PM_LOG_DEBUG, "loading package cache for repository '%s'\n",
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db->treename);
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if(db->ops->populate(db) == -1) {
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_alpm_log(PM_LOG_DEBUG,
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"failed to load package cache for repository '%s'\n", db->treename);
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return(-1);
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}
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db->pkgcache_loaded = 1;
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return(0);
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}
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void _alpm_db_free_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded) {
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return;
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}
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_alpm_log(PM_LOG_DEBUG, "freeing package cache for repository '%s'\n",
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db->treename);
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alpm_list_free_inner(db->pkgcache, (alpm_list_fn_free)_alpm_pkg_free);
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alpm_list_free(db->pkgcache);
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db->pkgcache_loaded = 0;
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_alpm_db_free_grpcache(db);
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}
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alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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if(!db->pkgcache_loaded) {
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_alpm_db_load_pkgcache(db);
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}
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/* hmmm, still NULL ?*/
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if(!db->pkgcache) {
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_alpm_log(PM_LOG_DEBUG, "warning: pkgcache is NULL for db '%s'\n", db->treename);
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}
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return(db->pkgcache);
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}
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/* "duplicate" pkg then add it to pkgcache */
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int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
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{
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pmpkg_t *newpkg;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded || pkg == NULL) {
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return(-1);
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}
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newpkg = _alpm_pkg_dup(pkg);
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if(newpkg == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "adding entry '%s' in '%s' cache\n",
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alpm_pkg_get_name(newpkg), db->treename);
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db->pkgcache = alpm_list_add_sorted(db->pkgcache, newpkg, _alpm_pkg_cmp);
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_alpm_db_free_grpcache(db);
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return(0);
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}
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int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg)
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{
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void *vdata;
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pmpkg_t *data;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->pkgcache_loaded || pkg == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "removing entry '%s' from '%s' cache\n",
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alpm_pkg_get_name(pkg), db->treename);
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db->pkgcache = alpm_list_remove(db->pkgcache, pkg, _alpm_pkg_cmp, &vdata);
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data = vdata;
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if(data == NULL) {
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/* package not found */
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_alpm_log(PM_LOG_DEBUG, "cannot remove entry '%s' from '%s' cache: not found\n",
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alpm_pkg_get_name(pkg), db->treename);
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return(-1);
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}
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_alpm_pkg_free(data);
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_alpm_db_free_grpcache(db);
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return(0);
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}
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pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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alpm_list_t *pkgcache = _alpm_db_get_pkgcache(db);
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if(!pkgcache) {
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_alpm_log(PM_LOG_DEBUG, "warning: failed to get '%s' from NULL pkgcache\n",
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target);
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return(NULL);
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}
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return(_alpm_pkg_find(pkgcache, target));
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}
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/* Returns a new group cache from db.
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*/
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int _alpm_db_load_grpcache(pmdb_t *db)
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{
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alpm_list_t *lp;
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(-1);
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}
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_alpm_log(PM_LOG_DEBUG, "loading group cache for repository '%s'\n",
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db->treename);
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for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) {
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const alpm_list_t *i;
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pmpkg_t *pkg = lp->data;
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for(i = alpm_pkg_get_groups(pkg); i; i = i->next) {
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const char *grpname = i->data;
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alpm_list_t *j;
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pmgrp_t *grp = NULL;
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int found = 0;
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/* first look through the group cache for a group with this name */
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for(j = db->grpcache; j; j = j->next) {
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grp = j->data;
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if(strcmp(grp->name, grpname) == 0
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&& !alpm_list_find_ptr(grp->packages, pkg)) {
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grp->packages = alpm_list_add(grp->packages, pkg);
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found = 1;
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break;
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}
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}
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if(found) {
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continue;
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}
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/* we didn't find the group, so create a new one with this name */
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grp = _alpm_grp_new(grpname);
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grp->packages = alpm_list_add(grp->packages, pkg);
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db->grpcache = alpm_list_add(db->grpcache, grp);
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}
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}
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db->grpcache_loaded = 1;
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return(0);
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}
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void _alpm_db_free_grpcache(pmdb_t *db)
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{
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alpm_list_t *lg;
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ALPM_LOG_FUNC;
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if(db == NULL || !db->grpcache_loaded) {
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return;
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}
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_alpm_log(PM_LOG_DEBUG, "freeing group cache for repository '%s'\n",
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db->treename);
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for(lg = db->grpcache; lg; lg = lg->next) {
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_alpm_grp_free(lg->data);
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lg->data = NULL;
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}
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FREELIST(db->grpcache);
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db->grpcache_loaded = 0;
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}
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alpm_list_t *_alpm_db_get_grpcache(pmdb_t *db)
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{
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ALPM_LOG_FUNC;
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if(db == NULL) {
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return(NULL);
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}
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if(!db->grpcache_loaded) {
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_alpm_db_load_grpcache(db);
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}
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return(db->grpcache);
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}
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pmgrp_t *_alpm_db_get_grpfromcache(pmdb_t *db, const char *target)
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{
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alpm_list_t *i;
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ALPM_LOG_FUNC;
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if(db == NULL || target == NULL || strlen(target) == 0) {
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return(NULL);
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}
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for(i = _alpm_db_get_grpcache(db); i; i = i->next) {
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pmgrp_t *info = i->data;
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if(strcmp(info->name, target) == 0) {
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return(info);
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}
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}
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return(NULL);
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}
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int splitname(const char *target, pmpkg_t *pkg)
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{
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||||
|
|
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Reference in New Issue