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Merge pull request #214 from poettering/signal-rework-2

Browse Source 
everywhere: port everything to sigprocmask_many() and friends
This commit is contained in:
Lennart Poettering 2015-06-15 20:35:18 +02:00
commit 86b85cf440
29 changed files with 61 additions and 89 deletions
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4
src/basic/signal-util.c
View File

@ -159,7 +159,7 @@ int sigset_add_many(sigset_t *ss, ...) {
return r;
}
int sigprocmask_many(int how, ...) {
int sigprocmask_many(int how, sigset_t *old, ...) {
va_list ap;
sigset_t ss;
int r;
@ -174,7 +174,7 @@ int sigprocmask_many(int how, ...) {
if (r < 0)
return r;
if (sigprocmask(how, &ss, NULL) < 0)
if (sigprocmask(how, &ss, old) < 0)
return -errno;
return 0;

2
src/basic/signal-util.h
View File

@ -33,7 +33,7 @@ int default_signals(int sig, ...);
int sigaction_many(const struct sigaction *sa, ...);
int sigset_add_many(sigset_t *ss, ...);
int sigprocmask_many(int how, ...);
int sigprocmask_many(int how, sigset_t *old, ...);
const char *signal_to_string(int i) _const_;
int signal_from_string(const char *s) _pure_;

2
src/console/consoled-manager.c
View File

@ -51,7 +51,7 @@ int manager_new(Manager **out) {
if (r < 0)
return r;
r = sigprocmask_many(SIG_BLOCK, SIGTERM, SIGQUIT, SIGINT, SIGWINCH, SIGCHLD, -1);
r = sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGQUIT, SIGINT, SIGWINCH, SIGCHLD, -1);
if (r < 0)
return r;

8
src/core/execute.c
View File

@ -824,10 +824,7 @@ static int setup_pam(
/* Block SIGTERM, so that we know that it won't get lost in
* the child */
if (sigemptyset(&ss) < 0 ||
sigaddset(&ss, SIGTERM) < 0 ||
sigprocmask(SIG_BLOCK, &ss, &old_ss) < 0)
goto fail;
assert_se(sigprocmask_many(SIG_BLOCK, &old_ss, SIGTERM, -1) >= 0);
parent_pid = getpid();
@ -903,8 +900,7 @@ static int setup_pam(
handle = NULL;
/* Unblock SIGTERM again in the parent */
if (sigprocmask(SIG_SETMASK, &old_ss, NULL) < 0)
goto fail;
assert_se(sigprocmask(SIG_SETMASK, &old_ss, NULL) >= 0);
/* We close the log explicitly here, since the PAM modules
* might have opened it, but we don't want this fd around. */

12
src/import/export.c
View File

@ -118,9 +118,9 @@ static int export_tar(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = tar_export_new(&export, event, on_tar_finished, event);
if (r < 0)
@ -197,9 +197,9 @@ static int export_raw(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = raw_export_new(&export, event, on_raw_finished, event);
if (r < 0)

12
src/import/import.c
View File

@ -116,9 +116,9 @@ static int import_tar(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = tar_import_new(&import, event, arg_image_root, on_tar_finished, event);
if (r < 0)
@ -211,9 +211,9 @@ static int import_raw(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = raw_import_new(&import, event, arg_image_root, on_raw_finished, event);
if (r < 0)

2
src/import/importd.c
View File

@ -1301,7 +1301,7 @@ int main(int argc, char *argv[]) {
goto finish;
}
assert_se(sigprocmask_many(SIG_BLOCK, SIGCHLD, -1) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0);
r = manager_new(&m);
if (r < 0) {

18
src/import/pull.c
View File

@ -109,9 +109,9 @@ static int pull_tar(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = tar_pull_new(&pull, event, arg_image_root, on_tar_finished, event);
if (r < 0)
@ -195,9 +195,9 @@ static int pull_raw(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = raw_pull_new(&pull, event, arg_image_root, on_raw_finished, event);
if (r < 0)
@ -303,9 +303,9 @@ static int pull_dkr(int argc, char *argv[], void *userdata) {
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
r = dkr_pull_new(&pull, event, arg_dkr_index_url, arg_image_root, on_dkr_finished, event);
if (r < 0)

5
src/journal-remote/journal-remote.c
View File

@ -788,14 +788,11 @@ static int dispatch_http_event(sd_event_source *event,
**********************************************************************/
static int setup_signals(RemoteServer *s) {
sigset_t mask;
int r;
assert(s);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGINT, SIGTERM, -1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, -1) >= 0);
r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, NULL, s);
if (r < 0)

5
src/journal-remote/journal-upload.c
View File

@ -396,14 +396,11 @@ static int dispatch_sigterm(sd_event_source *event,
}
static int setup_signals(Uploader *u) {
sigset_t mask;
int r;
assert(u);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGINT, SIGTERM, -1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, -1) >= 0);
r = sd_event_add_signal(u->events, &u->sigterm_event, SIGTERM, dispatch_sigterm, u);
if (r < 0)

5
src/journal/journald-server.c
View File

@ -1264,14 +1264,11 @@ static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *
}
static int setup_signals(Server *s) {
sigset_t mask;
int r;
assert(s);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
assert(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1) >= 0);
r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s);
if (r < 0)

2
src/libsystemd-terminal/evcat.c
View File

@ -154,7 +154,7 @@ static int evcat_new(Evcat **out) {
if (r < 0)
return r;
r = sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1);
r = sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1);
if (r < 0)
return r;

2
src/libsystemd-terminal/modeset.c
View File

@ -170,7 +170,7 @@ static int modeset_new(Modeset **out) {
if (r < 0)
return r;
r = sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1);
r = sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1);
if (r < 0)
return r;

2
src/libsystemd-terminal/subterm.c
View File

@ -856,7 +856,7 @@ static int terminal_new(Terminal **out, int in_fd, int out_fd) {
goto error;
}
r = sigprocmask_many(SIG_BLOCK, SIGINT, SIGQUIT, SIGTERM, SIGWINCH, SIGCHLD, -1);
r = sigprocmask_many(SIG_BLOCK, NULL, SIGINT, SIGQUIT, SIGTERM, SIGWINCH, SIGCHLD, -1);
if (r < 0) {
log_error_errno(r, "error: sigprocmask_many() (%d): %m", r);
goto error;

13
src/libsystemd/sd-event/test-event.c
View File

@ -79,7 +79,6 @@ static int child_handler(sd_event_source *s, const siginfo_t *si, void *userdata
static int signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) {
sd_event_source *p = NULL;
sigset_t ss;
pid_t pid;
assert_se(s);
@ -89,9 +88,7 @@ static int signal_handler(sd_event_source *s, const struct signalfd_siginfo *si,
assert_se(userdata == INT_TO_PTR('e'));
assert_se(sigemptyset(&ss) >= 0);
assert_se(sigaddset(&ss, SIGCHLD) >= 0);
assert_se(sigprocmask(SIG_BLOCK, &ss, NULL) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0);
pid = fork();
assert_se(pid >= 0);
@ -109,7 +106,6 @@ static int signal_handler(sd_event_source *s, const struct signalfd_siginfo *si,
static int defer_handler(sd_event_source *s, void *userdata) {
sd_event_source *p = NULL;
sigset_t ss;
assert_se(s);
@ -117,9 +113,8 @@ static int defer_handler(sd_event_source *s, void *userdata) {
assert_se(userdata == INT_TO_PTR('d'));
assert_se(sigemptyset(&ss) >= 0);
assert_se(sigaddset(&ss, SIGUSR1) >= 0);
assert_se(sigprocmask(SIG_BLOCK, &ss, NULL) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGUSR1, -1) >= 0);
assert_se(sd_event_add_signal(sd_event_source_get_event(s), &p, SIGUSR1, signal_handler, INT_TO_PTR('e')) >= 0);
assert_se(sd_event_source_set_enabled(p, SD_EVENT_ONESHOT) >= 0);
raise(SIGUSR1);
@ -209,7 +204,7 @@ int main(int argc, char *argv[]) {
assert_se(sd_event_source_set_prepare(z, prepare_handler) >= 0);
/* Test for floating event sources */
assert_se(sigprocmask_many(SIG_BLOCK, SIGRTMIN+1, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN+1, -1) >= 0);
assert_se(sd_event_add_signal(e, NULL, SIGRTMIN+1, NULL, NULL) >= 0);
assert_se(write(a[1], &ch, 1) >= 0);

9
src/login/logind.c
View File

@ -787,13 +787,8 @@ static int manager_connect_console(Manager *m) {
return -EINVAL;
}
r = ignore_signals(SIGRTMIN + 1, -1);
if (r < 0)
return log_error_errno(r, "Cannot ignore SIGRTMIN + 1: %m");
r = sigprocmask_many(SIG_BLOCK, SIGRTMIN, -1);
if (r < 0)
return log_error_errno(r, "Cannot block SIGRTMIN: %m");
assert_se(ignore_signals(SIGRTMIN + 1, -1) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0);
r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m);
if (r < 0)

4
src/machine/machinectl.c
View File

@ -1219,7 +1219,7 @@ static int login_machine(int argc, char *argv[], void *userdata) {
if (r < 0)
return bus_log_parse_error(r);
sigprocmask_many(SIG_BLOCK, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
log_info("Connected to machine %s. Press ^] three times within 1s to exit session.", argv[1]);
@ -1630,7 +1630,7 @@ static int transfer_image_common(sd_bus *bus, sd_bus_message *m) {
if (r < 0)
return bus_log_parse_error(r);
sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
if (!arg_quiet)
log_info("Enqueued transfer job %u. Press C-c to continue download in background.", id);

2
src/machine/machined.c
View File

@ -322,7 +322,7 @@ int main(int argc, char *argv[]) {
* check stays in. */
mkdir_label("/run/systemd/machines", 0755);
assert_se(sigprocmask_many(SIG_BLOCK, SIGCHLD, -1) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0);
m = manager_new();
if (!m) {

2
src/network/networkd-wait-online.c
View File

@ -129,7 +129,7 @@ int main(int argc, char *argv[]) {
if (arg_quiet)
log_set_max_level(LOG_WARNING);
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
r = manager_new(&m, arg_interfaces, arg_ignore, arg_timeout);
if (r < 0) {

2
src/network/networkd.c
View File

@ -75,7 +75,7 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto out;
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
r = manager_new(&m);
if (r < 0) {

6
src/nspawn/nspawn.c
View File

@ -4465,7 +4465,7 @@ int main(int argc, char *argv[]) {
int r, n_fd_passed, loop_nr = -1;
char veth_name[IFNAMSIZ];
bool secondary = false, remove_subvol = false;
sigset_t mask, mask_chld;
sigset_t mask_chld;
pid_t pid = 0;
int ret = EXIT_SUCCESS;
union in_addr_union exposed = {};
@ -4664,9 +4664,7 @@ int main(int argc, char *argv[]) {
log_info("Spawning container %s on %s.\nPress ^] three times within 1s to kill container.",
arg_machine, arg_image ?: arg_directory);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGCHLD, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
assert_se(sigemptyset(&mask_chld) == 0);
assert_se(sigaddset(&mask_chld, SIGCHLD) == 0);

2
src/resolve/resolved.c
View File

@ -71,7 +71,7 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto finish;
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
r = manager_new(&m);
if (r < 0) {

9
src/run/run.c
View File

@ -789,19 +789,16 @@ static int start_transient_service(
if (master >= 0) {
_cleanup_(pty_forward_freep) PTYForward *forward = NULL;
_cleanup_event_unref_ sd_event *event = NULL;
sigset_t mask;
char last_char = 0;
r = sd_event_default(&event);
if (r < 0)
return log_error_errno(r, "Failed to get event loop: %m");
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
(void) sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
(void) sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
if (!arg_quiet)
log_info("Running as unit %s.\nPress ^] three times within 1s to disconnect TTY.", service);

6
src/shared/ask-password-api.c
View File

@ -323,9 +323,9 @@ int ask_password_agent(
assert(_passphrases);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGINT, SIGTERM, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) == 0);
assert_se(sigemptyset(&mask) >= 0);
assert_se(sigset_add_many(&mask, SIGINT, SIGTERM, -1) >= 0);
assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) >= 0);
mkdir_p_label("/run/systemd/ask-password", 0755);

2
src/test/test-pty.c
View File

@ -129,7 +129,7 @@ int main(int argc, char *argv[]) {
log_parse_environment();
log_open();
assert_se(sigprocmask_many(SIG_BLOCK, SIGCHLD, -1) >= 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0);
/* Oh, there're ugly races in the TTY layer regarding HUP vs IN. Turns
* out they appear only 10% of the time. I fixed all of them and

2
src/test/test-udev.c
View File

@ -116,7 +116,7 @@ int main(int argc, char *argv[]) {
event = udev_event_new(dev);
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) >= 0);
/* do what devtmpfs usually provides us */
if (udev_device_get_devnode(dev) != NULL) {

2
src/timesync/timesyncd.c
View File

@ -117,7 +117,7 @@ int main(int argc, char *argv[]) {
if (setrlimit(RLIMIT_NPROC, &RLIMIT_MAKE_CONST(2)) < 0)
log_warning_errno(errno, "Failed to lower RLIMIT_NPROC to 2: %m");
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
r = manager_new(&m);
if (r < 0) {

6
src/tty-ask-password-agent/tty-ask-password-agent.c
View File

@ -485,9 +485,9 @@ static int watch_passwords(void) {
if (inotify_add_watch(notify, "/run/systemd/ask-password", IN_CLOSE_WRITE|IN_MOVED_TO) < 0)
return -errno;
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGINT, SIGTERM, -1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
assert_se(sigemptyset(&mask) >= 0);
assert_se(sigset_add_many(&mask, SIGINT, SIGTERM, -1) >= 0);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) >= 0);
signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
if (signal_fd < 0)

2
src/udev/udevd.c
View File

@ -1547,7 +1547,7 @@ static int manager_new(Manager **ret, int fd_ctrl, int fd_uevent, const char *cg
udev_watch_restore(manager->udev);
/* block and listen to all signals on signalfd */
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) == 0);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) >= 0);
r = sd_event_default(&manager->event);
if (r < 0)