-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include <sys/poll.h>
#include <stdlib.h>
#include <unistd.h>
+#include <sys/stat.h>
#include "set.h"
#include "unit.h"
#include "unit-name.h"
#include "specifier.h"
#include "dbus-unit.h"
+#include "special.h"
+#include "cgroup-util.h"
+#include "missing.h"
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
[UNIT_MOUNT] = &mount_vtable,
[UNIT_AUTOMOUNT] = &automount_vtable,
[UNIT_SNAPSHOT] = &snapshot_vtable,
- [UNIT_SWAP] = &swap_vtable
+ [UNIT_SWAP] = &swap_vtable,
+ [UNIT_PATH] = &path_vtable
};
Unit *unit_new(Manager *m) {
u->meta.manager = m;
u->meta.type = _UNIT_TYPE_INVALID;
+ u->meta.deserialized_job = _JOB_TYPE_INVALID;
+ u->meta.default_dependencies = true;
return u;
}
int unit_add_name(Unit *u, const char *text) {
UnitType t;
- char *s = NULL, *i = NULL;
+ char *s, *i = NULL;
int r;
assert(u);
if (!s)
return -ENOMEM;
- if (!unit_name_is_valid(s)) {
+ if (!unit_name_is_valid(s, false)) {
r = -EINVAL;
goto fail;
}
if (i && unit_vtable[t]->no_instances)
goto fail;
- if (u->meta.type != _UNIT_TYPE_INVALID && !streq_ptr(u->meta.instance, i)) {
+ /* Ensure that this unit is either instanced or not instanced,
+ * but not both. */
+ if (u->meta.type != _UNIT_TYPE_INVALID && !u->meta.instance != !i) {
r = -EINVAL;
goto fail;
}
}
int unit_choose_id(Unit *u, const char *name) {
- char *s, *t = NULL;
+ char *s, *t = NULL, *i;
+ int r;
assert(u);
assert(name);
if (!s)
return -ENOENT;
+ if ((r = unit_name_to_instance(s, &i)) < 0)
+ return r;
+
u->meta.id = s;
+
+ free(u->meta.instance);
+ u->meta.instance = i;
+
unit_add_to_dbus_queue(u);
return 0;
if (UNIT_VTABLE(u)->no_gc)
return true;
+ if (u->meta.no_gc)
+ return true;
+
if (u->meta.job)
return true;
if (u->meta.load_state == UNIT_STUB || u->meta.in_dbus_queue)
return;
- if (set_isempty(u->meta.manager->subscribed)) {
+ /* Shortcut things if nobody cares */
+ if (!bus_has_subscriber(u->meta.manager)) {
u->meta.sent_dbus_new_signal = true;
return;
}
bus_unit_send_removed_signal(u);
- /* Detach from next 'bigger' objects */
+ if (u->meta.load_state != UNIT_STUB)
+ if (UNIT_VTABLE(u)->done)
+ UNIT_VTABLE(u)->done(u);
+
SET_FOREACH(t, u->meta.names, i)
hashmap_remove_value(u->meta.manager->units, t, u);
+ if (u->meta.job)
+ job_free(u->meta.job);
+
+ for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++)
+ bidi_set_free(u, u->meta.dependencies[d]);
+
if (u->meta.type != _UNIT_TYPE_INVALID)
LIST_REMOVE(Meta, units_per_type, u->meta.manager->units_per_type[u->meta.type], &u->meta);
u->meta.manager->n_in_gc_queue--;
}
- /* Free data and next 'smaller' objects */
- if (u->meta.job)
- job_free(u->meta.job);
-
- if (u->meta.load_state != UNIT_STUB)
- if (UNIT_VTABLE(u)->done)
- UNIT_VTABLE(u)->done(u);
-
cgroup_bonding_free_list(u->meta.cgroup_bondings);
- for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++)
- bidi_set_free(u, u->meta.dependencies[d]);
-
free(u->meta.description);
free(u->meta.fragment_path);
- while ((t = set_steal_first(u->meta.names)))
- free(t);
- set_free(u->meta.names);
+ set_free_free(u->meta.names);
free(u->meta.instance);
-
free(u);
}
UnitActiveState unit_active_state(Unit *u) {
assert(u);
- if (u->meta.load_state != UNIT_LOADED)
- return UNIT_INACTIVE;
+ if (u->meta.load_state == UNIT_MERGED)
+ return unit_active_state(unit_follow_merge(u));
+
+ /* After a reload it might happen that a unit is not correctly
+ * loaded but still has a process around. That's why we won't
+ * shortcut failed loading to UNIT_INACTIVE_FAILED. */
return UNIT_VTABLE(u)->active_state(u);
}
complete_move(&u->meta.names, &other->meta.names);
- while ((t = set_steal_first(other->meta.names)))
- free(t);
-
- set_free(other->meta.names);
+ set_free_free(other->meta.names);
other->meta.names = NULL;
other->meta.id = NULL;
assert(other);
assert(d < _UNIT_DEPENDENCY_MAX);
+ /* Fix backwards pointers */
SET_FOREACH(back, other->meta.dependencies[d], i) {
UnitDependency k;
if (u->meta.type != other->meta.type)
return -EINVAL;
- if (!streq_ptr(u->meta.instance, other->meta.instance))
+ if (!u->meta.instance != !other->meta.instance)
return -EINVAL;
if (other->meta.load_state != UNIT_STUB &&
- other->meta.load_state != UNIT_FAILED)
+ other->meta.load_state != UNIT_ERROR)
return -EEXIST;
if (other->meta.job)
return -EEXIST;
- if (unit_active_state(other) != UNIT_INACTIVE)
+ if (!UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(other)))
return -EEXIST;
/* Merge names */
assert(u);
assert(c);
- if (c->std_output != EXEC_OUTPUT_KMSG && c->std_output != EXEC_OUTPUT_SYSLOG)
+ if (c->std_output != EXEC_OUTPUT_KMSG &&
+ c->std_output != EXEC_OUTPUT_SYSLOG &&
+ c->std_error != EXEC_OUTPUT_KMSG &&
+ c->std_error != EXEC_OUTPUT_SYSLOG)
return 0;
/* If syslog or kernel logging is requested, make sure our own
if ((r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET, NULL, true)) < 0)
return r;
- if (u->meta.manager->running_as != MANAGER_SESSION)
+ if (u->meta.manager->running_as == MANAGER_SYSTEM)
if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET, NULL, true)) < 0)
return r;
if (u->meta.description)
return u->meta.description;
- return u->meta.id;
+ return strna(u->meta.id);
}
void unit_dump(Unit *u, FILE *f, const char *prefix) {
timestamp1[FORMAT_TIMESTAMP_MAX],
timestamp2[FORMAT_TIMESTAMP_MAX],
timestamp3[FORMAT_TIMESTAMP_MAX],
- timestamp4[FORMAT_TIMESTAMP_MAX];
+ timestamp4[FORMAT_TIMESTAMP_MAX],
+ timespan[FORMAT_TIMESPAN_MAX];
+ Unit *following;
assert(u);
assert(u->meta.type >= 0);
"%s\tActive Enter Timestamp: %s\n"
"%s\tActive Exit Timestamp: %s\n"
"%s\tInactive Enter Timestamp: %s\n"
- "%s\tGC Check Good: %s\n",
+ "%s\tGC Check Good: %s\n"
+ "%s\tNeed Daemon Reload: %s\n",
prefix, u->meta.id,
prefix, unit_description(u),
prefix, strna(u->meta.instance),
prefix, unit_load_state_to_string(u->meta.load_state),
prefix, unit_active_state_to_string(unit_active_state(u)),
- prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->meta.inactive_exit_timestamp)),
- prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->meta.active_enter_timestamp)),
- prefix, strna(format_timestamp(timestamp3, sizeof(timestamp3), u->meta.active_exit_timestamp)),
- prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->meta.inactive_enter_timestamp)),
- prefix, yes_no(unit_check_gc(u)));
+ prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->meta.inactive_exit_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->meta.active_enter_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp3, sizeof(timestamp3), u->meta.active_exit_timestamp.realtime)),
+ prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->meta.inactive_enter_timestamp.realtime)),
+ prefix, yes_no(unit_check_gc(u)),
+ prefix, yes_no(unit_need_daemon_reload(u)));
SET_FOREACH(t, u->meta.names, i)
fprintf(f, "%s\tName: %s\n", prefix, t);
+ if ((following = unit_following(u)))
+ fprintf(f, "%s\tFollowing: %s\n", prefix, following->meta.id);
+
if (u->meta.fragment_path)
fprintf(f, "%s\tFragment Path: %s\n", prefix, u->meta.fragment_path);
+ if (u->meta.job_timeout > 0)
+ fprintf(f, "%s\tJob Timeout: %s\n", prefix, format_timespan(timespan, sizeof(timespan), u->meta.job_timeout));
+
for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) {
Unit *other;
if (u->meta.load_state == UNIT_LOADED) {
fprintf(f,
"%s\tRecursive Stop: %s\n"
- "%s\tStop When Unneeded: %s\n",
+ "%s\tStopWhenUnneeded: %s\n"
+ "%s\tRefuseManualStart: %s\n"
+ "%s\tRefuseManualStop: %s\n"
+ "%s\tDefaultDependencies: %s\n"
+ "%s\tIgnoreDependencyFailure: %s\n",
prefix, yes_no(u->meta.recursive_stop),
- prefix, yes_no(u->meta.stop_when_unneeded));
+ prefix, yes_no(u->meta.stop_when_unneeded),
+ prefix, yes_no(u->meta.refuse_manual_start),
+ prefix, yes_no(u->meta.refuse_manual_stop),
+ prefix, yes_no(u->meta.default_dependencies),
+ prefix, yes_no(u->meta.ignore_dependency_failure));
LIST_FOREACH(by_unit, b, u->meta.cgroup_bondings)
fprintf(f, "%s\tControlGroup: %s:%s\n",
fprintf(f,
"%s\tMerged into: %s\n",
prefix, u->meta.merged_into->meta.id);
+ else if (u->meta.load_state == UNIT_ERROR)
+ fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror(-u->meta.load_error));
+
if (u->meta.job)
job_dump(u->meta.job, f, prefix2);
return 0;
}
-/* Common implementation for multiple backends */
-int unit_load_nop(Unit *u) {
+int unit_add_default_target_dependency(Unit *u, Unit *target) {
assert(u);
+ assert(target);
- if (u->meta.load_state == UNIT_STUB)
- u->meta.load_state = UNIT_LOADED;
+ if (target->meta.type != UNIT_TARGET)
+ return 0;
+
+ /* Only add the dependency if boths units are loaded, so that
+ * that loop check below is reliable */
+ if (u->meta.load_state != UNIT_LOADED ||
+ target->meta.load_state != UNIT_LOADED)
+ return 0;
+
+ /* Don't create loops */
+ if (set_get(target->meta.dependencies[UNIT_BEFORE], u))
+ return 0;
+
+ return unit_add_dependency(target, UNIT_AFTER, u, true);
+}
+
+static int unit_add_default_dependencies(Unit *u) {
+ Unit *target;
+ Iterator i;
+ int r;
+
+ assert(u);
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_WANTED_BY], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
return 0;
}
goto fail;
}
+ if (u->meta.load_state == UNIT_LOADED &&
+ u->meta.default_dependencies)
+ if ((r = unit_add_default_dependencies(u)) < 0)
+ goto fail;
+
assert((u->meta.load_state != UNIT_MERGED) == !u->meta.merged_into);
unit_add_to_dbus_queue(unit_follow_merge(u));
return 0;
fail:
- u->meta.load_state = UNIT_FAILED;
+ u->meta.load_state = UNIT_ERROR;
+ u->meta.load_error = r;
unit_add_to_dbus_queue(u);
log_debug("Failed to load configuration for %s: %s", u->meta.id, strerror(-r));
}
/* Errors:
- * -EBADR: This unit type does not support starting.
- * -EALREADY: Unit is already started.
- * -EAGAIN: An operation is already in progress. Retry later.
+ * -EBADR: This unit type does not support starting.
+ * -EALREADY: Unit is already started.
+ * -EAGAIN: An operation is already in progress. Retry later.
+ * -ECANCELED: Too many requests for now.
*/
int unit_start(Unit *u) {
UnitActiveState state;
assert(u);
+ if (u->meta.load_state != UNIT_LOADED)
+ return -EINVAL;
+
/* If this is already (being) started, then this will
* succeed. Note that this will even succeed if this unit is
* not startable by the user. This is relied on to detect when
* before it will start again. */
unit_add_to_dbus_queue(u);
+
+ unit_status_printf(u, "Starting %s...\n", unit_description(u));
+
return UNIT_VTABLE(u)->start(u);
}
return !!UNIT_VTABLE(u)->start;
}
+bool unit_can_isolate(Unit *u) {
+ assert(u);
+
+ return unit_can_start(u) &&
+ u->meta.allow_isolate;
+}
+
/* Errors:
* -EBADR: This unit type does not support stopping.
* -EALREADY: Unit is already stopped.
assert(u);
state = unit_active_state(u);
- if (state == UNIT_INACTIVE)
+ if (UNIT_IS_INACTIVE_OR_FAILED(state))
return -EALREADY;
if (!UNIT_VTABLE(u)->stop)
return -EBADR;
unit_add_to_dbus_queue(u);
+
+ unit_status_printf(u, "Stopping %s...\n", unit_description(u));
+
return UNIT_VTABLE(u)->stop(u);
}
assert(u);
+ if (u->meta.load_state != UNIT_LOADED)
+ return -EINVAL;
+
if (!unit_can_reload(u))
return -EBADR;
state = unit_active_state(u);
- if (unit_active_state(u) == UNIT_ACTIVE_RELOADING)
+ if (state == UNIT_RELOADING)
return -EALREADY;
- if (unit_active_state(u) != UNIT_ACTIVE)
+ if (state != UNIT_ACTIVE)
return -ENOEXEC;
unit_add_to_dbus_queue(u);
return UNIT_VTABLE(u)->can_reload(u);
}
-static void unit_check_uneeded(Unit *u) {
+static void unit_check_unneeded(Unit *u) {
Iterator i;
Unit *other;
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
return;
- log_debug("Service %s is not needed anymore. Stopping.", u->meta.id);
+ log_info("Service %s is not needed anymore. Stopping.", u->meta.id);
/* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */
- manager_add_job(u->meta.manager, JOB_STOP, u, JOB_FAIL, true, NULL);
+ manager_add_job(u->meta.manager, JOB_STOP, u, JOB_FAIL, true, NULL, NULL);
}
static void retroactively_start_dependencies(Unit *u) {
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL);
+ manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL);
+ manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL, NULL);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE], i)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL);
+ manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL);
+ manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL, NULL);
SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL);
+ manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL);
+
+ SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTED_BY], i)
+ if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
+ manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL);
}
static void retroactively_stop_dependencies(Unit *u) {
/* Pull down units need us recursively if enabled */
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL);
+ manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL);
}
/* Garbage collect services that might not be needed anymore, if enabled */
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
}
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) {
- bool unexpected = false;
- usec_t ts;
+ dual_timestamp ts;
+ bool unexpected;
assert(u);
assert(os < _UNIT_ACTIVE_STATE_MAX);
* even if they might map to the same high-level
* UnitActiveState! That means that ns == os is OK an expected
* behaviour here. For example: if a mount point is remounted
- * this function will be called too and the utmp code below
- * relies on that! */
+ * this function will be called too! */
- ts = now(CLOCK_REALTIME);
+ dual_timestamp_get(&ts);
- if (os == UNIT_INACTIVE && ns != UNIT_INACTIVE)
+ if (UNIT_IS_INACTIVE_OR_FAILED(os) && !UNIT_IS_INACTIVE_OR_FAILED(ns))
u->meta.inactive_exit_timestamp = ts;
- else if (os != UNIT_INACTIVE && ns == UNIT_INACTIVE)
+ else if (!UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_INACTIVE_OR_FAILED(ns))
u->meta.inactive_enter_timestamp = ts;
if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns))
else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns))
u->meta.active_exit_timestamp = ts;
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ cgroup_bonding_trim_list(u->meta.cgroup_bondings, true);
+
+ timer_unit_notify(u, ns);
+ path_unit_notify(u, ns);
+
if (u->meta.job) {
+ unexpected = false;
if (u->meta.job->state == JOB_WAITING)
* failed previously due to EAGAIN. */
job_add_to_run_queue(u->meta.job);
- else {
- assert(u->meta.job->state == JOB_RUNNING);
+ /* Let's check whether this state change constitutes a
+ * finished job, or maybe cotradicts a running job and
+ * hence needs to invalidate jobs. */
- /* Let's check whether this state change
- * constitutes a finished job, or maybe
- * cotradicts a running job and hence needs to
- * invalidate jobs. */
+ switch (u->meta.job->type) {
- switch (u->meta.job->type) {
+ case JOB_START:
+ case JOB_VERIFY_ACTIVE:
- case JOB_START:
- case JOB_VERIFY_ACTIVE:
+ if (UNIT_IS_ACTIVE_OR_RELOADING(ns))
+ job_finish_and_invalidate(u->meta.job, true);
+ else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_ACTIVATING) {
+ unexpected = true;
- if (UNIT_IS_ACTIVE_OR_RELOADING(ns))
- job_finish_and_invalidate(u->meta.job, true);
- else if (ns != UNIT_ACTIVATING) {
- unexpected = true;
- job_finish_and_invalidate(u->meta.job, false);
- }
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
+ }
- break;
+ break;
- case JOB_RELOAD:
- case JOB_RELOAD_OR_START:
+ case JOB_RELOAD:
+ case JOB_RELOAD_OR_START:
+ if (u->meta.job->state == JOB_RUNNING) {
if (ns == UNIT_ACTIVE)
job_finish_and_invalidate(u->meta.job, true);
- else if (ns != UNIT_ACTIVATING && ns != UNIT_ACTIVE_RELOADING) {
+ else if (ns != UNIT_ACTIVATING && ns != UNIT_RELOADING) {
unexpected = true;
- job_finish_and_invalidate(u->meta.job, false);
+
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
}
+ }
- break;
+ break;
- case JOB_STOP:
- case JOB_RESTART:
- case JOB_TRY_RESTART:
+ case JOB_STOP:
+ case JOB_RESTART:
+ case JOB_TRY_RESTART:
- if (ns == UNIT_INACTIVE)
- job_finish_and_invalidate(u->meta.job, true);
- else if (ns != UNIT_DEACTIVATING) {
- unexpected = true;
- job_finish_and_invalidate(u->meta.job, false);
- }
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ job_finish_and_invalidate(u->meta.job, true);
+ else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_DEACTIVATING) {
+ unexpected = true;
+ job_finish_and_invalidate(u->meta.job, false);
+ }
- break;
+ break;
- default:
- assert_not_reached("Job type unknown");
- }
+ default:
+ assert_not_reached("Job type unknown");
}
- }
+
+ } else
+ unexpected = true;
/* If this state change happened without being requested by a
- * job, then let's retroactively start or stop dependencies */
+ * job, then let's retroactively start or stop
+ * dependencies. We skip that step when deserializing, since
+ * we don't want to create any additional jobs just because
+ * something is already activated. */
- if (unexpected) {
- if (UNIT_IS_INACTIVE_OR_DEACTIVATING(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns))
+ if (unexpected && u->meta.manager->n_deserializing <= 0) {
+ if (UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns))
retroactively_start_dependencies(u);
else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns))
retroactively_stop_dependencies(u);
}
+ if (ns != os && ns == UNIT_FAILED) {
+ Iterator i;
+ Unit *other;
+
+ SET_FOREACH(other, u->meta.dependencies[UNIT_ON_FAILURE], i)
+ manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
+
+ log_notice("Unit %s entered failed state.", u->meta.id);
+ }
+
/* Some names are special */
if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
- if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) {
+ if (unit_has_name(u, SPECIAL_DBUS_SERVICE))
/* The bus just might have become available,
* hence try to connect to it, if we aren't
* yet connected. */
- bus_init_system(u->meta.manager);
- bus_init_api(u->meta.manager);
- }
+ bus_init(u->meta.manager);
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon just might have become
* we aren't yet connected. */
log_open();
- if (u->meta.type == UNIT_MOUNT)
- /* Another directory became available, let's
- * check if that is enough to write our utmp
- * entry. */
- manager_write_utmp_reboot(u->meta.manager);
+ if (u->meta.type == UNIT_SERVICE &&
+ !UNIT_IS_ACTIVE_OR_RELOADING(os)) {
+ /* Write audit record if we have just finished starting up */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, true);
+ u->meta.in_audit = true;
+ }
- if (u->meta.type == UNIT_TARGET)
- /* A target got activated, maybe this is a runlevel? */
- manager_write_utmp_runlevel(u->meta.manager, u);
+ if (!UNIT_IS_ACTIVE_OR_RELOADING(os))
+ manager_send_unit_plymouth(u->meta.manager, u);
- } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
+ } else {
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon might just have
/* We don't care about D-Bus here, since we'll get an
* asynchronous notification for it anyway. */
+
+ if (u->meta.type == UNIT_SERVICE &&
+ UNIT_IS_INACTIVE_OR_FAILED(ns) &&
+ !UNIT_IS_INACTIVE_OR_FAILED(os)) {
+
+ /* Hmm, if there was no start record written
+ * write it now, so that we always have a nice
+ * pair */
+ if (!u->meta.in_audit) {
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
+
+ if (ns == UNIT_INACTIVE)
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, true);
+ } else
+ /* Write audit record if we have just finished shutting down */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
+
+ u->meta.in_audit = false;
+ }
}
/* Maybe we finished startup and are now ready for being
* stopped because unneeded? */
- unit_check_uneeded(u);
+ unit_check_unneeded(u);
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
/* Watch a specific PID. We only support one unit watching
* each PID for now. */
- return hashmap_put(u->meta.manager->watch_pids, UINT32_TO_PTR(pid), u);
+ return hashmap_put(u->meta.manager->watch_pids, LONG_TO_PTR(pid), u);
}
void unit_unwatch_pid(Unit *u, pid_t pid) {
assert(u);
assert(pid >= 1);
- hashmap_remove_value(u->meta.manager->watch_pids, UINT32_TO_PTR(pid), u);
+ hashmap_remove_value(u->meta.manager->watch_pids, LONG_TO_PTR(pid), u);
}
int unit_watch_timer(Unit *u, usec_t delay, Watch *w) {
assert(u);
assert(w);
- assert(w->type == WATCH_INVALID || (w->type == WATCH_TIMER && w->data.unit == u));
+ assert(w->type == WATCH_INVALID || (w->type == WATCH_UNIT_TIMER && w->data.unit == u));
/* This will try to reuse the old timer if there is one */
- if (w->type == WATCH_TIMER) {
+ if (w->type == WATCH_UNIT_TIMER) {
+ assert(w->data.unit == u);
+ assert(w->fd >= 0);
+
ours = false;
fd = w->fd;
- } else {
+ } else if (w->type == WATCH_INVALID) {
+
ours = true;
if ((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC)) < 0)
return -errno;
- }
+ } else
+ assert_not_reached("Invalid watch type");
zero(its);
goto fail;
}
+ w->type = WATCH_UNIT_TIMER;
w->fd = fd;
- w->type = WATCH_TIMER;
w->data.unit = u;
return 0;
if (w->type == WATCH_INVALID)
return;
- assert(w->type == WATCH_TIMER && w->data.unit == u);
+ assert(w->type == WATCH_UNIT_TIMER);
+ assert(w->data.unit == u);
+ assert(w->fd >= 0);
assert_se(epoll_ctl(u->meta.manager->epoll_fd, EPOLL_CTL_DEL, w->fd, NULL) >= 0);
close_nointr_nofail(w->fd);
[UNIT_REQUIRED_BY] = _UNIT_DEPENDENCY_INVALID,
[UNIT_REQUIRED_BY_OVERRIDABLE] = _UNIT_DEPENDENCY_INVALID,
[UNIT_WANTED_BY] = _UNIT_DEPENDENCY_INVALID,
- [UNIT_CONFLICTS] = UNIT_CONFLICTS,
+ [UNIT_CONFLICTS] = UNIT_CONFLICTED_BY,
+ [UNIT_CONFLICTED_BY] = UNIT_CONFLICTS,
[UNIT_BEFORE] = UNIT_AFTER,
[UNIT_AFTER] = UNIT_BEFORE,
+ [UNIT_ON_FAILURE] = _UNIT_DEPENDENCY_INVALID,
[UNIT_REFERENCES] = UNIT_REFERENCED_BY,
[UNIT_REFERENCED_BY] = UNIT_REFERENCES
};
assert(u);
assert(d >= 0 && d < _UNIT_DEPENDENCY_MAX);
- assert(inverse_table[d] != _UNIT_DEPENDENCY_INVALID);
assert(other);
+ u = unit_follow_merge(u);
+ other = unit_follow_merge(other);
+
/* We won't allow dependencies on ourselves. We will not
* consider them an error however. */
if (u == other)
return -EINVAL;
}
- if ((r = set_ensure_allocated(&u->meta.dependencies[d], trivial_hash_func, trivial_compare_func)) < 0 ||
- (r = set_ensure_allocated(&other->meta.dependencies[inverse_table[d]], trivial_hash_func, trivial_compare_func)) < 0)
+ if ((r = set_ensure_allocated(&u->meta.dependencies[d], trivial_hash_func, trivial_compare_func)) < 0)
return r;
+ if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID)
+ if ((r = set_ensure_allocated(&other->meta.dependencies[inverse_table[d]], trivial_hash_func, trivial_compare_func)) < 0)
+ return r;
+
if (add_reference)
if ((r = set_ensure_allocated(&u->meta.dependencies[UNIT_REFERENCES], trivial_hash_func, trivial_compare_func)) < 0 ||
(r = set_ensure_allocated(&other->meta.dependencies[UNIT_REFERENCED_BY], trivial_hash_func, trivial_compare_func)) < 0)
if ((q = set_put(u->meta.dependencies[d], other)) < 0)
return q;
- if ((v = set_put(other->meta.dependencies[inverse_table[d]], u)) < 0) {
- r = v;
- goto fail;
- }
+ if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID)
+ if ((v = set_put(other->meta.dependencies[inverse_table[d]], u)) < 0) {
+ r = v;
+ goto fail;
+ }
if (add_reference) {
if ((w = set_put(u->meta.dependencies[UNIT_REFERENCES], other)) < 0) {
return r;
}
+int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference) {
+ int r;
+
+ assert(u);
+
+ if ((r = unit_add_dependency(u, d, other, add_reference)) < 0)
+ return r;
+
+ if ((r = unit_add_dependency(u, e, other, add_reference)) < 0)
+ return r;
+
+ return 0;
+}
+
static const char *resolve_template(Unit *u, const char *name, const char*path, char **p) {
char *s;
if (!(name = resolve_template(u, name, path, &s)))
return -ENOMEM;
- if ((r = manager_load_unit(u->meta.manager, name, path, &other)) < 0)
+ if ((r = manager_load_unit(u->meta.manager, name, path, NULL, &other)) < 0)
goto finish;
r = unit_add_dependency(u, d, other, add_reference);
return r;
}
+int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) {
+ Unit *other;
+ int r;
+ char *s;
+
+ assert(u);
+ assert(name || path);
+
+ if (!(name = resolve_template(u, name, path, &s)))
+ return -ENOMEM;
+
+ if ((r = manager_load_unit(u->meta.manager, name, path, NULL, &other)) < 0)
+ goto finish;
+
+ r = unit_add_two_dependencies(u, d, e, other, add_reference);
+
+finish:
+ free(s);
+ return r;
+}
+
int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) {
Unit *other;
int r;
if (!(name = resolve_template(u, name, path, &s)))
return -ENOMEM;
- if ((r = manager_load_unit(u->meta.manager, name, path, &other)) < 0)
+ if ((r = manager_load_unit(u->meta.manager, name, path, NULL, &other)) < 0)
goto finish;
r = unit_add_dependency(other, d, u, add_reference);
return r;
}
+int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) {
+ Unit *other;
+ int r;
+ char *s;
+
+ assert(u);
+ assert(name || path);
+
+ if (!(name = resolve_template(u, name, path, &s)))
+ return -ENOMEM;
+
+ if ((r = manager_load_unit(u->meta.manager, name, path, NULL, &other)) < 0)
+ goto finish;
+
+ if ((r = unit_add_two_dependencies(other, d, e, u, add_reference)) < 0)
+ goto finish;
+
+finish:
+ free(s);
+ return r;
+}
+
int set_unit_path(const char *p) {
char *cwd, *c;
int r;
assert(u);
- if (!(e = bus_path_escape(u->meta.id)))
+ if (!u->meta.id)
return NULL;
- if (asprintf(&p, "/org/freedesktop/systemd1/unit/%s", e) < 0) {
- free(e);
+ if (!(e = bus_path_escape(u->meta.id)))
return NULL;
- }
+ p = strappend("/org/freedesktop/systemd1/unit/", e);
free(e);
+
return p;
}
assert(u);
assert(b);
+
assert(b->path);
+ if (!b->controller)
+ if (!(b->controller = strdup(SYSTEMD_CGROUP_CONTROLLER)))
+ return -ENOMEM;
+
/* Ensure this hasn't been added yet */
assert(!b->unit);
}
int unit_add_cgroup_from_text(Unit *u, const char *name) {
- size_t n;
char *controller = NULL, *path = NULL;
CGroupBonding *b = NULL;
int r;
assert(u);
assert(name);
- /* Detect controller name */
- n = strcspn(name, ":");
-
- if (name[n] == 0 ||
- (name[n] == ':' && name[n+1] == 0)) {
-
- /* Only controller name, no path? */
-
- if (!(path = default_cgroup_path(u)))
- return -ENOMEM;
-
- } else {
- const char *p;
-
- /* Controller name, and path. */
- p = name+n+1;
+ if ((r = cg_split_spec(name, &controller, &path)) < 0)
+ return r;
- if (!path_is_absolute(p))
- return -EINVAL;
+ if (!path)
+ path = default_cgroup_path(u);
- if (!(path = strdup(p)))
- return -ENOMEM;
- }
+ if (!controller)
+ controller = strdup(SYSTEMD_CGROUP_CONTROLLER);
- if (n > 0)
- controller = strndup(name, n);
- else
- controller = strdup(u->meta.manager->cgroup_controller);
+ if (!path || !controller) {
+ free(path);
+ free(controller);
- if (!controller) {
- r = -ENOMEM;
- goto fail;
+ return -ENOMEM;
}
if (cgroup_bonding_find_list(u->meta.cgroup_bondings, controller)) {
if (!(b = new0(CGroupBonding, 1)))
return -ENOMEM;
- if (!(b->controller = strdup(u->meta.manager->cgroup_controller)))
- goto fail;
-
if (!(b->path = default_cgroup_path(u)))
goto fail;
CGroupBonding* unit_get_default_cgroup(Unit *u) {
assert(u);
- return cgroup_bonding_find_list(u->meta.cgroup_bondings, u->meta.manager->cgroup_controller);
+ return cgroup_bonding_find_list(u->meta.cgroup_bondings, SYSTEMD_CGROUP_CONTROLLER);
}
int unit_load_related_unit(Unit *u, const char *type, Unit **_found) {
assert(!unit_has_name(u, t));
- r = manager_load_unit(u->meta.manager, t, NULL, _found);
+ r = manager_load_unit(u->meta.manager, t, NULL, NULL, _found);
free(t);
assert(r < 0 || *_found != u);
if ((r = UNIT_VTABLE(u)->serialize(u, f, fds)) < 0)
return r;
+ if (u->meta.job)
+ unit_serialize_item(u, f, "job", job_type_to_string(u->meta.job->type));
+
/* End marker */
fputc('\n', f);
return 0;
return -errno;
}
+ char_array_0(line);
l = strstrip(line);
/* End marker */
} else
v = l+k;
+ if (streq(l, "job")) {
+ JobType type;
+
+ if ((type = job_type_from_string(v)) < 0)
+ log_debug("Failed to parse job type value %s", v);
+ else
+ u->meta.deserialized_job = type;
+
+ continue;
+ }
+
if ((r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds)) < 0)
return r;
}
if (!(e = unit_name_build_escape(what+1, NULL, ".device")))
return -ENOMEM;
- r = manager_load_unit(u->meta.manager, e, NULL, &device);
+ r = manager_load_unit(u->meta.manager, e, NULL, NULL, &device);
free(e);
if (r < 0)
return r;
- if ((r = unit_add_dependency(u, UNIT_AFTER, device, true)) < 0)
- return r;
-
- if ((r = unit_add_dependency(u, UNIT_REQUIRES, device, true)) < 0)
+ if ((r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_REQUIRES, device, true)) < 0)
return r;
if (wants)
return 0;
}
-static const char* const unit_type_table[_UNIT_TYPE_MAX] = {
- [UNIT_SERVICE] = "service",
- [UNIT_TIMER] = "timer",
- [UNIT_SOCKET] = "socket",
- [UNIT_TARGET] = "target",
- [UNIT_DEVICE] = "device",
- [UNIT_MOUNT] = "mount",
- [UNIT_AUTOMOUNT] = "automount",
- [UNIT_SNAPSHOT] = "snapshot",
- [UNIT_SWAP] = "swap"
-};
+int unit_coldplug(Unit *u) {
+ int r;
-DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType);
+ assert(u);
+
+ if (UNIT_VTABLE(u)->coldplug)
+ if ((r = UNIT_VTABLE(u)->coldplug(u)) < 0)
+ return r;
+
+ if (u->meta.deserialized_job >= 0) {
+ if ((r = manager_add_job(u->meta.manager, u->meta.deserialized_job, u, JOB_FAIL, false, NULL, NULL)) < 0)
+ return r;
+
+ u->meta.deserialized_job = _JOB_TYPE_INVALID;
+ }
+
+ return 0;
+}
+
+void unit_status_printf(Unit *u, const char *format, ...) {
+ va_list ap;
+
+ assert(u);
+ assert(format);
+
+ if (!UNIT_VTABLE(u)->show_status)
+ return;
+
+ if (u->meta.manager->running_as != MANAGER_SYSTEM)
+ return;
+
+ if (!u->meta.manager->show_status)
+ return;
+
+ if (!manager_is_booting_or_shutting_down(u->meta.manager))
+ return;
+
+ va_start(ap, format);
+ status_vprintf(format, ap);
+ va_end(ap);
+}
+
+bool unit_need_daemon_reload(Unit *u) {
+ struct stat st;
+
+ assert(u);
+
+ if (!u->meta.fragment_path)
+ return false;
+
+ zero(st);
+ if (stat(u->meta.fragment_path, &st) < 0)
+ /* What, cannot access this anymore? */
+ return true;
+
+ return
+ u->meta.fragment_mtime &&
+ timespec_load(&st.st_mtim) != u->meta.fragment_mtime;
+}
+
+void unit_reset_failed(Unit *u) {
+ assert(u);
+
+ if (UNIT_VTABLE(u)->reset_failed)
+ UNIT_VTABLE(u)->reset_failed(u);
+}
+
+Unit *unit_following(Unit *u) {
+ assert(u);
+
+ if (UNIT_VTABLE(u)->following)
+ return UNIT_VTABLE(u)->following(u);
+
+ return NULL;
+}
+
+bool unit_pending_inactive(Unit *u) {
+ assert(u);
+
+ /* Returns true if the unit is inactive or going down */
+
+ if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u)))
+ return true;
+
+ if (u->meta.job && u->meta.job->type == JOB_STOP)
+ return true;
+
+ return false;
+}
+
+bool unit_pending_active(Unit *u) {
+ assert(u);
+
+ /* Returns true if the unit is inactive or going down */
+
+ if (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)))
+ return true;
+
+ if (u->meta.job &&
+ (u->meta.job->type == JOB_START ||
+ u->meta.job->type == JOB_RELOAD_OR_START ||
+ u->meta.job->type == JOB_RESTART))
+ return true;
+
+ return false;
+}
+
+UnitType unit_name_to_type(const char *n) {
+ UnitType t;
+
+ assert(n);
+
+ for (t = 0; t < _UNIT_TYPE_MAX; t++)
+ if (endswith(n, unit_vtable[t]->suffix))
+ return t;
+
+ return _UNIT_TYPE_INVALID;
+}
+
+bool unit_name_is_valid(const char *n, bool template_ok) {
+ UnitType t;
+
+ t = unit_name_to_type(n);
+ if (t < 0 || t >= _UNIT_TYPE_MAX)
+ return false;
+
+ return unit_name_is_valid_no_type(n, template_ok);
+}
static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = {
[UNIT_STUB] = "stub",
[UNIT_LOADED] = "loaded",
- [UNIT_FAILED] = "failed",
- [UNIT_MERGED] = "merged"
+ [UNIT_ERROR] = "error",
+ [UNIT_MERGED] = "merged",
+ [UNIT_MASKED] = "masked"
};
DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState);
static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = {
[UNIT_ACTIVE] = "active",
+ [UNIT_RELOADING] = "reloading",
[UNIT_INACTIVE] = "inactive",
+ [UNIT_FAILED] = "failed",
[UNIT_ACTIVATING] = "activating",
[UNIT_DEACTIVATING] = "deactivating"
};
[UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable",
[UNIT_WANTED_BY] = "WantedBy",
[UNIT_CONFLICTS] = "Conflicts",
+ [UNIT_CONFLICTED_BY] = "ConflictedBy",
[UNIT_BEFORE] = "Before",
[UNIT_AFTER] = "After",
[UNIT_REFERENCES] = "References",
- [UNIT_REFERENCED_BY] = "ReferencedBy"
+ [UNIT_REFERENCED_BY] = "ReferencedBy",
+ [UNIT_ON_FAILURE] = "OnFailure"
};
DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency);
~ianmdlvl / elogind.git / blobdiff