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/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "core/load-fragment.h"
#include "core/unit.h"
#include "systemd-basic/log.h"
#include "systemd-basic/strv.h"
#include "systemd-basic/unit-name.h"
#include "systemd-shared/conf-parser.h"
#include "load-dropin.h"
static int add_dependency_consumer(
UnitDependency dependency,
const char *entry,
const char* filepath,
void *arg) {
Unit *u = arg;
int r;
assert(u);
r = unit_add_dependency_by_name(u, dependency, entry, filepath, true);
if (r < 0)
log_error_errno(r, "Cannot add dependency %s to %s, ignoring: %m", entry, u->id);
return 0;
}
int unit_load_dropin(Unit *u) {
_cleanup_strv_free_ char **l = NULL;
Iterator i;
char *t, **f;
int r;
assert(u);
/* Load dependencies from supplementary drop-in directories */
SET_FOREACH(t, u->names, i) {
char **p;
STRV_FOREACH(p, u->manager->lookup_paths.search_path) {
unit_file_process_dir(u->manager->unit_path_cache, *p, t, ".wants", UNIT_WANTS,
add_dependency_consumer, u, NULL);
unit_file_process_dir(u->manager->unit_path_cache, *p, t, ".requires", UNIT_REQUIRES,
add_dependency_consumer, u, NULL);
}
}
r = unit_find_dropin_paths(u, &l);
if (r <= 0)
return 0;
if (!u->dropin_paths) {
u->dropin_paths = l;
l = NULL;
} else {
r = strv_extend_strv(&u->dropin_paths, l, true);
if (r < 0)
return log_oom();
}
STRV_FOREACH(f, u->dropin_paths) {
config_parse(u->id, *f, NULL,
UNIT_VTABLE(u)->sections,
config_item_perf_lookup, load_fragment_gperf_lookup,
false, false, false, u);
}
u->dropin_mtime = now(CLOCK_REALTIME);
return 0;
}
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