diff options
| author | Lennart Poettering <lennart@poettering.net> | 2016-06-10 20:23:49 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-06-10 23:26:53 +0200 |
| commit | bc81447ea556586b09226ce2d3fe375a7adc2c16 (patch) | |
| tree | 4ca3eb8ee06a74c2c1a75bfa73dfdaa7e2cc742b /src/resolve | |
| parent | e373507d2570fe474a09fd6e3836ead32dca912f (diff) | |
resolved: flush all caches if SIGUSR2 is received
Diffstat (limited to 'src/resolve')
| -rw-r--r-- | src/resolve/resolved-manager.c | 17 | ||||
| -rw-r--r-- | src/resolve/resolved-manager.h | 1 | ||||
| -rw-r--r-- | src/resolve/resolved.c | 2 |
3 files changed, 19 insertions, 1 deletions
diff --git a/src/resolve/resolved-manager.c b/src/resolve/resolved-manager.c index 8dc7891143..6cf75f9183 100644 --- a/src/resolve/resolved-manager.c +++ b/src/resolve/resolved-manager.c @@ -466,6 +466,21 @@ static int manager_sigusr1(sd_event_source *s, const struct signalfd_siginfo *si return 0; } +static int manager_sigusr2(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { + Manager *m = userdata; + DnsScope *scope; + + assert(s); + assert(si); + assert(m); + + LIST_FOREACH(scopes, scope, m->dns_scopes) + dns_cache_flush(&scope->cache); + + log_info("Flushed all caches."); + return 0; +} + int manager_new(Manager **ret) { _cleanup_(manager_freep) Manager *m = NULL; int r; @@ -526,6 +541,7 @@ int manager_new(Manager **ret) { return r; (void) sd_event_add_signal(m->event, &m->sigusr1_event_source, SIGUSR1, manager_sigusr1, m); + (void) sd_event_add_signal(m->event, &m->sigusr2_event_source, SIGUSR2, manager_sigusr2, m); *ret = m; m = NULL; @@ -584,6 +600,7 @@ Manager *manager_free(Manager *m) { sd_bus_unref(m->bus); sd_event_source_unref(m->sigusr1_event_source); + sd_event_source_unref(m->sigusr2_event_source); sd_event_unref(m->event); diff --git a/src/resolve/resolved-manager.h b/src/resolve/resolved-manager.h index e82a824f29..97f75ace79 100644 --- a/src/resolve/resolved-manager.h +++ b/src/resolve/resolved-manager.h @@ -120,6 +120,7 @@ struct Manager { sd_bus_slot *prepare_for_sleep_slot; sd_event_source *sigusr1_event_source; + sd_event_source *sigusr2_event_source; unsigned n_transactions_total; unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c index 6cef401870..3a47b82d8a 100644 --- a/src/resolve/resolved.c +++ b/src/resolve/resolved.c @@ -71,7 +71,7 @@ int main(int argc, char *argv[]) { if (r < 0) goto finish; - assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, SIGUSR1, -1) >= 0); + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, SIGUSR1, SIGUSR2, -1) >= 0); r = manager_new(&m); if (r < 0) { |