#include "fs-util.h"
#include "id128-util.h"
#include "io-util.h"
+#include "install.h"
#include "load-dropin.h"
#include "load-fragment.h"
#include "log.h"
#include "parse-util.h"
#include "path-util.h"
#include "process-util.h"
+#include "rm-rf.h"
#include "serialize.h"
#include "set.h"
#include "signal-util.h"
#include "user-util.h"
#include "virt.h"
+/* Thresholds for logging at INFO level about resource consumption */
+#define MENTIONWORTHY_CPU_NSEC (1 * NSEC_PER_SEC)
+#define MENTIONWORTHY_IO_BYTES (1024 * 1024ULL)
+#define MENTIONWORTHY_IP_BYTES (0ULL)
+
+/* Thresholds for logging at INFO level about resource consumption */
+#define NOTICEWORTHY_CPU_NSEC (10*60 * NSEC_PER_SEC) /* 10 minutes */
+#define NOTICEWORTHY_IO_BYTES (10 * 1024 * 1024ULL) /* 10 MB */
+#define NOTICEWORTHY_IP_BYTES (128 * 1024 * 1024ULL) /* 128 MB */
+
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
[UNIT_SOCKET] = &socket_vtable,
u->last_section_private = -1;
- RATELIMIT_INIT(u->start_limit, m->default_start_limit_interval, m->default_start_limit_burst);
- RATELIMIT_INIT(u->auto_stop_ratelimit, 10 * USEC_PER_SEC, 16);
+ u->start_ratelimit = (RateLimit) { m->default_start_limit_interval, m->default_start_limit_burst };
+ u->auto_stop_ratelimit = (RateLimit) { 10 * USEC_PER_SEC, 16 };
for (CGroupIOAccountingMetric i = 0; i < _CGROUP_IO_ACCOUNTING_METRIC_MAX; i++)
u->io_accounting_last[i] = UINT64_MAX;
Unit *other;
int r;
+ /* Either add name to u, or if a unit with name already exists, merge it with u.
+ * If name is a template, do the same for name@instance, where instance is u's instance. */
+
assert(u);
assert(name);
return strna(u->id);
}
+const char *unit_status_string(Unit *u) {
+ assert(u);
+
+ if (u->manager->status_unit_format == STATUS_UNIT_FORMAT_NAME && u->id)
+ return u->id;
+
+ return unit_description(u);
+}
+
static void print_unit_dependency_mask(FILE *f, const char *kind, UnitDependencyMask mask, bool *space) {
const struct {
UnitDependencyMask mask;
UnitDependency d;
Iterator i;
const char *prefix2;
- char
- timestamp0[FORMAT_TIMESTAMP_MAX],
- timestamp1[FORMAT_TIMESTAMP_MAX],
- timestamp2[FORMAT_TIMESTAMP_MAX],
- timestamp3[FORMAT_TIMESTAMP_MAX],
- timestamp4[FORMAT_TIMESTAMP_MAX],
- timespan[FORMAT_TIMESPAN_MAX];
+ char timestamp[5][FORMAT_TIMESTAMP_MAX], timespan[FORMAT_TIMESPAN_MAX];
Unit *following;
_cleanup_set_free_ Set *following_set = NULL;
const char *n;
prefix2 = strjoina(prefix, "\t");
fprintf(f,
- "%s-> Unit %s:\n"
+ "%s-> Unit %s:\n",
+ prefix, u->id);
+
+ SET_FOREACH(t, u->names, i)
+ if (!streq(t, u->id))
+ fprintf(f, "%s\tAlias: %s\n", prefix, t);
+
+ fprintf(f,
"%s\tDescription: %s\n"
"%s\tInstance: %s\n"
"%s\tUnit Load State: %s\n"
"%s\tSlice: %s\n"
"%s\tCGroup: %s\n"
"%s\tCGroup realized: %s\n",
- prefix, u->id,
prefix, unit_description(u),
prefix, strna(u->instance),
prefix, unit_load_state_to_string(u->load_state),
prefix, unit_active_state_to_string(unit_active_state(u)),
- prefix, strna(format_timestamp(timestamp0, sizeof(timestamp0), u->state_change_timestamp.realtime)),
- prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->inactive_exit_timestamp.realtime)),
- prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->active_enter_timestamp.realtime)),
- prefix, strna(format_timestamp(timestamp3, sizeof(timestamp3), u->active_exit_timestamp.realtime)),
- prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->inactive_enter_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[0], sizeof(timestamp[0]), u->state_change_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[1], sizeof(timestamp[1]), u->inactive_exit_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[2], sizeof(timestamp[2]), u->active_enter_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[3], sizeof(timestamp[3]), u->active_exit_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[4], sizeof(timestamp[4]), u->inactive_enter_timestamp.realtime)),
prefix, yes_no(unit_may_gc(u)),
prefix, yes_no(unit_need_daemon_reload(u)),
prefix, yes_no(u->transient),
fprintf(f, "%s\tCGroup delegate mask: %s\n", prefix, strnull(s));
}
- SET_FOREACH(t, u->names, i)
- fprintf(f, "%s\tName: %s\n", prefix, t);
-
if (!sd_id128_is_null(u->invocation_id))
fprintf(f, "%s\tInvocation ID: " SD_ID128_FORMAT_STR "\n",
prefix, SD_ID128_FORMAT_VAL(u->invocation_id));
fprintf(f,
"%s\tCondition Timestamp: %s\n"
"%s\tCondition Result: %s\n",
- prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->condition_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[0], sizeof(timestamp[0]), u->condition_timestamp.realtime)),
prefix, yes_no(u->condition_result));
if (dual_timestamp_is_set(&u->assert_timestamp))
fprintf(f,
"%s\tAssert Timestamp: %s\n"
"%s\tAssert Result: %s\n",
- prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->assert_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp[0], sizeof(timestamp[0]), u->assert_timestamp.realtime)),
prefix, yes_no(u->assert_result));
for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) {
"%s\tMerged into: %s\n",
prefix, u->merged_into->id);
else if (u->load_state == UNIT_ERROR)
- fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror(-u->load_error));
+ fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror_safe(u->load_error));
for (n = sd_bus_track_first(u->bus_track); n; n = sd_bus_track_next(u->bus_track))
fprintf(f, "%s\tBus Ref: %s\n", prefix, n);
void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) {
const char *d;
- d = unit_description(u);
+ d = unit_status_string(u);
if (log_get_show_color())
d = strjoina(ANSI_HIGHLIGHT, d, ANSI_NORMAL);
assert(u);
- if (ratelimit_below(&u->start_limit)) {
+ if (ratelimit_below(&u->start_ratelimit)) {
u->start_limit_hit = false;
return 0;
}
int unit_start(Unit *u) {
UnitActiveState state;
Unit *following;
- int r;
assert(u);
state = unit_active_state(u);
if (UNIT_IS_ACTIVE_OR_RELOADING(state))
return -EALREADY;
+ if (state == UNIT_MAINTENANCE)
+ return -EAGAIN;
/* Units that aren't loaded cannot be started */
if (u->load_state != UNIT_LOADED)
* still be useful to speed up activation in case there is some hold-off time, but we don't want to
* recheck the condition in that case. */
if (state != UNIT_ACTIVATING &&
- !unit_test_condition(u)) {
-
- /* Let's also check the start limit here. Normally, the start limit is only checked by the
- * .start() method of the unit type after it did some additional checks verifying everything
- * is in order (so that those other checks can propagate errors properly). However, if a
- * condition check doesn't hold we don't get that far but we should still ensure we are not
- * called in a tight loop without a rate limit check enforced, hence do the check here. Note
- * that ECOMM is generally not a reason for a job to fail, unlike most other errors here,
- * hence the chance is big that any triggering unit for us will trigger us again. Note this
- * condition check is a bit different from the condition check inside the per-unit .start()
- * function, as this one will not change the unit's state in any way (and we shouldn't here,
- * after all the condition failed). */
-
- r = unit_test_start_limit(u);
- if (r < 0)
- return r;
-
+ !unit_test_condition(u))
return log_unit_debug_errno(u, SYNTHETIC_ERRNO(ECOMM), "Starting requested but condition failed. Not starting unit.");
- }
/* If the asserts failed, fail the entire job */
if (state != UNIT_ACTIVATING &&
* condition checks, so that we rather return condition check errors (which are usually not
* considered a true failure) than "not supported" errors (which are considered a failure).
*/
- if (!unit_supported(u))
+ if (!unit_type_supported(u->type))
return -EOPNOTSUPP;
/* Let's make sure that the deps really are in order before we start this. Normally the job engine
if (u->load_state != UNIT_LOADED)
return false;
- if (!unit_supported(u))
+ if (!unit_type_supported(u->type))
return false;
/* Scope units may be started only once */
bool unit_can_stop(Unit *u) {
assert(u);
- if (!unit_supported(u))
+ if (!unit_type_supported(u->type))
return false;
if (u->perpetual)
UNIT_VTABLE(other)->trigger_notify(other, u);
}
+static int raise_level(int log_level, bool condition_info, bool condition_notice) {
+ if (condition_notice && log_level > LOG_NOTICE)
+ return LOG_NOTICE;
+ if (condition_info && log_level > LOG_INFO)
+ return LOG_INFO;
+ return log_level;
+}
+
static int unit_log_resources(Unit *u) {
struct iovec iovec[1 + _CGROUP_IP_ACCOUNTING_METRIC_MAX + _CGROUP_IO_ACCOUNTING_METRIC_MAX + 4];
bool any_traffic = false, have_ip_accounting = false, any_io = false, have_io_accounting = false;
_cleanup_free_ char *igress = NULL, *egress = NULL, *rr = NULL, *wr = NULL;
+ int log_level = LOG_DEBUG; /* May be raised if resources consumed over a treshold */
size_t n_message_parts = 0, n_iovec = 0;
char* message_parts[1 + 2 + 2 + 1], *t;
nsec_t nsec = NSEC_INFINITY;
}
message_parts[n_message_parts++] = t;
+
+ log_level = raise_level(log_level,
+ nsec > NOTICEWORTHY_CPU_NSEC,
+ nsec > MENTIONWORTHY_CPU_NSEC);
}
for (CGroupIOAccountingMetric k = 0; k < _CGROUP_IO_ACCOUNTING_METRIC_MAX; k++) {
goto finish;
}
}
+
+ if (IN_SET(k, CGROUP_IO_READ_BYTES, CGROUP_IO_WRITE_BYTES))
+ log_level = raise_level(log_level,
+ value > MENTIONWORTHY_IO_BYTES,
+ value > NOTICEWORTHY_IO_BYTES);
}
if (have_io_accounting) {
goto finish;
}
}
+
+ if (IN_SET(m, CGROUP_IP_INGRESS_BYTES, CGROUP_IP_EGRESS_BYTES))
+ log_level = raise_level(log_level,
+ value > MENTIONWORTHY_IP_BYTES,
+ value > NOTICEWORTHY_IP_BYTES);
}
if (have_ip_accounting) {
t = strjoina(u->manager->invocation_log_field, u->invocation_id_string);
iovec[n_iovec + 3] = IOVEC_MAKE_STRING(t);
- log_struct_iovec(LOG_INFO, iovec, n_iovec + 4);
+ log_struct_iovec(log_level, iovec, n_iovec + 4);
r = 0;
finish:
static bool unit_process_job(Job *j, UnitActiveState ns, UnitNotifyFlags flags) {
bool unexpected = false;
+ JobResult result;
assert(j);
else if (j->state == JOB_RUNNING && ns != UNIT_ACTIVATING) {
unexpected = true;
- if (UNIT_IS_INACTIVE_OR_FAILED(ns))
- job_finish_and_invalidate(j, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE, true, false);
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns)) {
+ if (ns == UNIT_FAILED)
+ result = JOB_FAILED;
+ else if (FLAGS_SET(flags, UNIT_NOTIFY_SKIP_CONDITION))
+ result = JOB_SKIPPED;
+ else
+ result = JOB_DONE;
+
+ job_finish_and_invalidate(j, result, true, false);
+ }
}
break;
r = sd_event_source_set_priority(s, SD_EVENT_PRIORITY_IDLE);
if (r < 0)
- return log_error_errno(r, "Failed to adjust priority of event source for tidying watched PIDs: m");
+ return log_error_errno(r, "Failed to adjust priority of event source for tidying watched PIDs: %m");
(void) sd_event_source_set_description(s, "tidy-watch-pids");
new_owner = empty_to_null(new_owner);
if (UNIT_VTABLE(u)->bus_name_owner_change)
- UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
+ UNIT_VTABLE(u)->bus_name_owner_change(u, old_owner, new_owner);
+
+ return 0;
+}
+
+static int get_name_owner_handler(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const sd_bus_error *e;
+ const char *new_owner;
+ Unit *u = userdata;
+ int r;
+
+ assert(message);
+ assert(u);
+
+ u->get_name_owner_slot = sd_bus_slot_unref(u->get_name_owner_slot);
+
+ if (sd_bus_error_is_set(error)) {
+ log_error("Failed to get name owner from bus: %s", error->message);
+ return 0;
+ }
+
+ e = sd_bus_message_get_error(message);
+ if (sd_bus_error_has_name(e, "org.freedesktop.DBus.Error.NameHasNoOwner"))
+ return 0;
+
+ if (e) {
+ log_error("Unexpected error response from GetNameOwner: %s", e->message);
+ return 0;
+ }
+
+ r = sd_bus_message_read(message, "s", &new_owner);
+ if (r < 0) {
+ bus_log_parse_error(r);
+ return 0;
+ }
+
+ new_owner = empty_to_null(new_owner);
+
+ if (UNIT_VTABLE(u)->bus_name_owner_change)
+ UNIT_VTABLE(u)->bus_name_owner_change(u, NULL, new_owner);
return 0;
}
"member='NameOwnerChanged',"
"arg0='", name, "'");
- return sd_bus_add_match_async(bus, &u->match_bus_slot, match, signal_name_owner_changed, NULL, u);
+ int r = sd_bus_add_match_async(bus, &u->match_bus_slot, match, signal_name_owner_changed, NULL, u);
+ if (r < 0)
+ return r;
+
+ return sd_bus_call_method_async(bus,
+ &u->get_name_owner_slot,
+ "org.freedesktop.DBus",
+ "/org/freedesktop/DBus",
+ "org.freedesktop.DBus",
+ "GetNameOwner",
+ get_name_owner_handler,
+ u,
+ "s", name);
}
int unit_watch_bus_name(Unit *u, const char *name) {
(void) hashmap_remove_value(u->manager->watch_bus, name, u);
u->match_bus_slot = sd_bus_slot_unref(u->match_bus_slot);
+ u->get_name_owner_slot = sd_bus_slot_unref(u->get_name_owner_slot);
}
bool unit_can_serialize(Unit *u) {
(void) serialize_bool(f, "exported-invocation-id", u->exported_invocation_id);
(void) serialize_bool(f, "exported-log-level-max", u->exported_log_level_max);
(void) serialize_bool(f, "exported-log-extra-fields", u->exported_log_extra_fields);
- (void) serialize_bool(f, "exported-log-rate-limit-interval", u->exported_log_rate_limit_interval);
- (void) serialize_bool(f, "exported-log-rate-limit-burst", u->exported_log_rate_limit_burst);
+ (void) serialize_bool(f, "exported-log-rate-limit-interval", u->exported_log_ratelimit_interval);
+ (void) serialize_bool(f, "exported-log-rate-limit-burst", u->exported_log_ratelimit_burst);
(void) serialize_item_format(f, "cpu-usage-base", "%" PRIu64, u->cpu_usage_base);
if (u->cpu_usage_last != NSEC_INFINITY)
if (r < 0)
log_unit_debug(u, "Failed to parse exported log rate limit interval %s, ignoring.", v);
else
- u->exported_log_rate_limit_interval = r;
+ u->exported_log_ratelimit_interval = r;
continue;
if (r < 0)
log_unit_debug(u, "Failed to parse exported log rate limit burst %s, ignoring.", v);
else
- u->exported_log_rate_limit_burst = r;
+ u->exported_log_ratelimit_burst = r;
continue;
int unit_coldplug(Unit *u) {
int r = 0, q;
char **i;
+ Job *uj;
assert(u);
r = q;
}
- if (u->job) {
- q = job_coldplug(u->job);
+ uj = u->job ?: u->nop_job;
+ if (uj) {
+ q = job_coldplug(uj);
if (q < 0 && r >= 0)
r = q;
}
if (UNIT_VTABLE(u)->reset_failed)
UNIT_VTABLE(u)->reset_failed(u);
- RATELIMIT_RESET(u->start_limit);
+ ratelimit_reset(&u->start_ratelimit);
u->start_limit_hit = false;
}
return false;
}
+bool unit_will_restart_default(Unit *u) {
+ assert(u);
+
+ if (!u->job)
+ return false;
+ if (u->job->type == JOB_START)
+ return true;
+
+ return false;
+}
+
bool unit_will_restart(Unit *u) {
assert(u);
return r;
(void) mkdir_p_label(p, 0755);
+
+ /* Make sure the drop-in dir is registered in our path cache. This way we don't need to stupidly
+ * recreate the cache after every drop-in we write. */
+ if (u->manager->unit_path_cache) {
+ r = set_put_strdup(u->manager->unit_path_cache, p);
+ if (r < 0)
+ return r;
+ }
+
r = write_string_file_atomic_label(q, wrapped);
if (r < 0)
return r;
return 0;
}
+int unit_fork_and_watch_rm_rf(Unit *u, char **paths, pid_t *ret_pid) {
+ pid_t pid;
+ int r;
+
+ assert(u);
+ assert(ret_pid);
+
+ r = unit_fork_helper_process(u, "(sd-rmrf)", &pid);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ int ret = EXIT_SUCCESS;
+ char **i;
+
+ STRV_FOREACH(i, paths) {
+ r = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_MISSING_OK);
+ if (r < 0) {
+ log_error_errno(r, "Failed to remove '%s': %m", *i);
+ ret = EXIT_FAILURE;
+ }
+ }
+
+ _exit(ret);
+ }
+
+ r = unit_watch_pid(u, pid, true);
+ if (r < 0)
+ return r;
+
+ *ret_pid = pid;
+ return 0;
+}
+
static void unit_update_dependency_mask(Unit *u, UnitDependency d, Unit *other, UnitDependencyInfo di) {
assert(u);
assert(d >= 0);
return r;
}
-static int unit_export_log_rate_limit_interval(Unit *u, const ExecContext *c) {
+static int unit_export_log_ratelimit_interval(Unit *u, const ExecContext *c) {
_cleanup_free_ char *buf = NULL;
const char *p;
int r;
assert(u);
assert(c);
- if (u->exported_log_rate_limit_interval)
+ if (u->exported_log_ratelimit_interval)
return 0;
- if (c->log_rate_limit_interval_usec == 0)
+ if (c->log_ratelimit_interval_usec == 0)
return 0;
p = strjoina("/run/systemd/units/log-rate-limit-interval:", u->id);
- if (asprintf(&buf, "%" PRIu64, c->log_rate_limit_interval_usec) < 0)
+ if (asprintf(&buf, "%" PRIu64, c->log_ratelimit_interval_usec) < 0)
return log_oom();
r = symlink_atomic(buf, p);
if (r < 0)
return log_unit_debug_errno(u, r, "Failed to create log rate limit interval symlink %s: %m", p);
- u->exported_log_rate_limit_interval = true;
+ u->exported_log_ratelimit_interval = true;
return 0;
}
-static int unit_export_log_rate_limit_burst(Unit *u, const ExecContext *c) {
+static int unit_export_log_ratelimit_burst(Unit *u, const ExecContext *c) {
_cleanup_free_ char *buf = NULL;
const char *p;
int r;
assert(u);
assert(c);
- if (u->exported_log_rate_limit_burst)
+ if (u->exported_log_ratelimit_burst)
return 0;
- if (c->log_rate_limit_burst == 0)
+ if (c->log_ratelimit_burst == 0)
return 0;
p = strjoina("/run/systemd/units/log-rate-limit-burst:", u->id);
- if (asprintf(&buf, "%u", c->log_rate_limit_burst) < 0)
+ if (asprintf(&buf, "%u", c->log_ratelimit_burst) < 0)
return log_oom();
r = symlink_atomic(buf, p);
if (r < 0)
return log_unit_debug_errno(u, r, "Failed to create log rate limit burst symlink %s: %m", p);
- u->exported_log_rate_limit_burst = true;
+ u->exported_log_ratelimit_burst = true;
return 0;
}
if (c) {
(void) unit_export_log_level_max(u, c);
(void) unit_export_log_extra_fields(u, c);
- (void) unit_export_log_rate_limit_interval(u, c);
- (void) unit_export_log_rate_limit_burst(u, c);
+ (void) unit_export_log_ratelimit_interval(u, c);
+ (void) unit_export_log_ratelimit_burst(u, c);
}
}
u->exported_log_extra_fields = false;
}
- if (u->exported_log_rate_limit_interval) {
+ if (u->exported_log_ratelimit_interval) {
p = strjoina("/run/systemd/units/log-rate-limit-interval:", u->id);
(void) unlink(p);
- u->exported_log_rate_limit_interval = false;
+ u->exported_log_ratelimit_interval = false;
}
- if (u->exported_log_rate_limit_burst) {
+ if (u->exported_log_ratelimit_burst) {
p = strjoina("/run/systemd/units/log-rate-limit-burst:", u->id);
(void) unlink(p);
- u->exported_log_rate_limit_burst = false;
+ u->exported_log_ratelimit_burst = false;
}
}
"UNIT_RESULT=%s", result);
}
+void unit_log_skip(Unit *u, const char *result) {
+ assert(u);
+ assert(result);
+
+ log_struct(LOG_INFO,
+ "MESSAGE_ID=" SD_MESSAGE_UNIT_SKIPPED_STR,
+ LOG_UNIT_ID(u),
+ LOG_UNIT_INVOCATION_ID(u),
+ LOG_UNIT_MESSAGE(u, "Skipped due to '%s'.", result),
+ "UNIT_RESULT=%s", result);
+}
+
void unit_log_process_exit(
Unit *u,
- int level,
const char *kind,
const char *command,
+ bool success,
int code,
int status) {
+ int level;
+
assert(u);
assert(kind);
- if (code != CLD_EXITED)
+ /* If this is a successful exit, let's log about the exit code on DEBUG level. If this is a failure
+ * and the process exited on its own via exit(), then let's make this a NOTICE, under the assumption
+ * that the service already logged the reason at a higher log level on its own. Otherwise, make it a
+ * WARNING. */
+ if (success)
+ level = LOG_DEBUG;
+ else if (code == CLD_EXITED)
+ level = LOG_NOTICE;
+ else
level = LOG_WARNING;
log_struct(level,
trigger = UNIT_TRIGGER(u);
if (!trigger)
- return log_unit_error_errno(u, SYNTHETIC_ERRNO(ENOENT), "Refusing to start, unit to trigger not loaded.");
+ return log_unit_error_errno(u, SYNTHETIC_ERRNO(ENOENT),
+ "Refusing to start, no unit to trigger.");
if (trigger->load_state != UNIT_LOADED)
- return log_unit_error_errno(u, SYNTHETIC_ERRNO(ENOENT), "Refusing to start, unit %s to trigger not loaded.", u->id);
+ return log_unit_error_errno(u, SYNTHETIC_ERRNO(ENOENT),
+ "Refusing to start, unit %s to trigger not loaded.", trigger->id);
return 0;
}
+void unit_destroy_runtime_directory(Unit *u, const ExecContext *context) {
+ if (context->runtime_directory_preserve_mode == EXEC_PRESERVE_NO ||
+ (context->runtime_directory_preserve_mode == EXEC_PRESERVE_RESTART && !unit_will_restart(u)))
+ exec_context_destroy_runtime_directory(context, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
+}
+
+int unit_clean(Unit *u, ExecCleanMask mask) {
+ UnitActiveState state;
+
+ assert(u);
+
+ /* Special return values:
+ *
+ * -EOPNOTSUPP → cleaning not supported for this unit type
+ * -EUNATCH → cleaning not defined for this resource type
+ * -EBUSY → unit currently can't be cleaned since it's running or not properly loaded, or has
+ * a job queued or similar
+ */
+
+ if (!UNIT_VTABLE(u)->clean)
+ return -EOPNOTSUPP;
+
+ if (mask == 0)
+ return -EUNATCH;
+
+ if (u->load_state != UNIT_LOADED)
+ return -EBUSY;
+
+ if (u->job)
+ return -EBUSY;
+
+ state = unit_active_state(u);
+ if (!IN_SET(state, UNIT_INACTIVE))
+ return -EBUSY;
+
+ return UNIT_VTABLE(u)->clean(u, mask);
+}
+
+int unit_can_clean(Unit *u, ExecCleanMask *ret) {
+ assert(u);
+
+ if (!UNIT_VTABLE(u)->clean ||
+ u->load_state != UNIT_LOADED) {
+ *ret = 0;
+ return 0;
+ }
+
+ /* When the clean() method is set, can_clean() really should be set too */
+ assert(UNIT_VTABLE(u)->can_clean);
+
+ return UNIT_VTABLE(u)->can_clean(u, ret);
+}
+
static const char* const collect_mode_table[_COLLECT_MODE_MAX] = {
[COLLECT_INACTIVE] = "inactive",
[COLLECT_INACTIVE_OR_FAILED] = "inactive-or-failed",
projects / thirdparty / systemd.git / blobdiff