static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
int r;
assert(s);
if (f != SCOPE_SUCCESS)
s->result = f;
r = unit_kill_context(
UNIT(s),
&s->kill_context,
state != SCOPE_STOP_SIGTERM,
-1, -1, false);
if (r < 0)
goto fail;
if (r > 0) {
r = scope_arm_timer(s);
if (r < 0)
goto fail;
scope_set_state(s, state);
} else
scope_enter_dead(s, SCOPE_SUCCESS);
return;
fail:
log_warning_unit(UNIT(s)->id,
"%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
scope_enter_dead(s, SCOPE_FAILURE_RESOURCES);
}
static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
bool skip_signal = false;
int r;
assert(s);
if (s->result == SCOPE_SUCCESS)
s->result = f;
/* Before sending any signal, make sure we track all members of this cgroup */
(void) unit_watch_all_pids(UNIT(s));
/* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have
* died now */
(void) unit_enqueue_rewatch_pids(UNIT(s));
/* If we have a controller set let's ask the controller nicely to terminate the scope, instead of us going
* directly into SIGTERM berserk mode */
if (state == SCOPE_STOP_SIGTERM)
skip_signal = bus_scope_send_request_stop(s) > 0;
if (skip_signal)
r = 1; /* wait */
else {
r = unit_kill_context(
UNIT(s),
&s->kill_context,
state != SCOPE_STOP_SIGTERM ? KILL_KILL :
s->was_abandoned ? KILL_TERMINATE_AND_LOG :
KILL_TERMINATE,
-1, -1, false);
if (r < 0)
goto fail;
}
if (r > 0) {
r = scope_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec));
if (r < 0)
goto fail;
scope_set_state(s, state);
} else if (state == SCOPE_STOP_SIGTERM)
scope_enter_signal(s, SCOPE_STOP_SIGKILL, SCOPE_SUCCESS);
else
scope_enter_dead(s, SCOPE_SUCCESS);
return;
fail:
log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m");
scope_enter_dead(s, SCOPE_FAILURE_RESOURCES);
}
static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
bool skip_signal = false;
int r;
assert(s);
if (s->result == SCOPE_SUCCESS)
s->result = f;
unit_watch_all_pids(UNIT(s));
/* If we have a controller set let's ask the controller nicely
* to terminate the scope, instead of us going directly into
* SIGTERM berserk mode */
if (state == SCOPE_STOP_SIGTERM)
skip_signal = bus_scope_send_request_stop(s) > 0;
if (skip_signal)
r = 1; /* wait */
else {
r = unit_kill_context(
UNIT(s),
&s->kill_context,
state != SCOPE_STOP_SIGTERM ? KILL_KILL :
s->was_abandoned ? KILL_TERMINATE_AND_LOG :
KILL_TERMINATE,
-1, -1, false);
if (r < 0)
goto fail;
}
if (r > 0) {
r = scope_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec));
if (r < 0)
goto fail;
scope_set_state(s, state);
} else if (state == SCOPE_STOP_SIGTERM)
scope_enter_signal(s, SCOPE_STOP_SIGKILL, SCOPE_SUCCESS);
else
scope_enter_dead(s, SCOPE_SUCCESS);
return;
fail:
log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m");
scope_enter_dead(s, SCOPE_FAILURE_RESOURCES);
}
static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
bool skip_signal = false;
int r;
assert(s);
if (f != SCOPE_SUCCESS)
s->result = f;
unit_watch_all_pids(UNIT(s));
/* If we have a controller set let's ask the controller nicely
* to terminate the scope, instead of us going directly into
* SIGTERM beserk mode */
if (state == SCOPE_STOP_SIGTERM)
skip_signal = bus_scope_send_request_stop(s) > 0;
if (!skip_signal) {
r = unit_kill_context(
UNIT(s),
&s->kill_context,
state != SCOPE_STOP_SIGTERM,
-1, -1, false);
if (r < 0)
goto fail;
} else
r = 1;
if (r > 0) {
r = scope_arm_timer(s);
if (r < 0)
goto fail;
scope_set_state(s, state);
} else if (state == SCOPE_STOP_SIGTERM)
scope_enter_signal(s, SCOPE_STOP_SIGKILL, SCOPE_SUCCESS);
else
scope_enter_dead(s, SCOPE_SUCCESS);
return;
fail:
log_warning_unit(UNIT(s)->id,
"%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
scope_enter_dead(s, SCOPE_FAILURE_RESOURCES);
}
static void busname_enter_signal(BusName *n, BusNameState state, BusNameResult f) {
KillContext kill_context = {};
int r;
assert(n);
if (f != BUSNAME_SUCCESS)
n->result = f;
kill_context_init(&kill_context);
r = unit_kill_context(UNIT(n),
&kill_context,
state != BUSNAME_SIGTERM ? KILL_KILL : KILL_TERMINATE,
-1,
n->control_pid,
false);
if (r < 0) {
log_unit_warning_errno(UNIT(n)->id, r, "%s failed to kill control process: %m", UNIT(n)->id);
goto fail;
}
if (r > 0) {
r = busname_arm_timer(n);
if (r < 0) {
log_unit_warning_errno(UNIT(n)->id, r, "%s failed to arm timer: %m", UNIT(n)->id);
goto fail;
}
busname_set_state(n, state);
} else if (state == BUSNAME_SIGTERM)
busname_enter_signal(n, BUSNAME_SIGKILL, BUSNAME_SUCCESS);
else
busname_enter_dead(n, BUSNAME_SUCCESS);
return;
fail:
busname_enter_dead(n, BUSNAME_FAILURE_RESOURCES);
}
