6a404805eaf2c770e480e88ebc4a3131ff26344e
[thirdparty/systemd.git] / src / machine / machined-core.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2
3 #include "machined.h"
4 #include "nscd-flush.h"
5 #include "strv.h"
6
7 static int on_nscd_cache_flush_event(sd_event_source *s, void *userdata) {
8 /* Let's ask glibc's nscd daemon to flush its caches. We request this for the three database machines may show
9 * up in: the hosts database (for resolvable machine names) and the user and group databases (for the user ns
10 * ranges). */
11
12 (void) nscd_flush_cache(STRV_MAKE("passwd", "group", "hosts"));
13 return 0;
14 }
15
16 int manager_enqueue_nscd_cache_flush(Manager *m) {
17 int r;
18
19 assert(m);
20
21 if (!m->nscd_cache_flush_event) {
22 r = sd_event_add_defer(m->event, &m->nscd_cache_flush_event, on_nscd_cache_flush_event, m);
23 if (r < 0)
24 return log_error_errno(r, "Failed to allocate NSCD cache flush event: %m");
25
26 sd_event_source_set_description(m->nscd_cache_flush_event, "nscd-cache-flush");
27 }
28
29 r = sd_event_source_set_enabled(m->nscd_cache_flush_event, SD_EVENT_ONESHOT);
30 if (r < 0) {
31 m->nscd_cache_flush_event = sd_event_source_unref(m->nscd_cache_flush_event);
32 return log_error_errno(r, "Failed to enable NSCD cache flush event: %m");
33 }
34
35 return 0;
36 }