Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
-#include "unit.h"
+#include "bus-common-errors.h"
+#include "dbus-snapshot.h"
+#include "parse-util.h"
+#include "parse-util.h"
#include "snapshot.h"
+#include "string-util.h"
#include "unit-name.h"
-#include "dbus-snapshot.h"
-#include "bus-errors.h"
+#include "unit.h"
static const UnitActiveState state_translation_table[_SNAPSHOT_STATE_MAX] = {
[SNAPSHOT_DEAD] = UNIT_INACTIVE,
UNIT(s)->ignore_on_isolate = true;
UNIT(s)->ignore_on_snapshot = true;
+ UNIT(s)->allow_isolate = true;
}
static void snapshot_set_state(Snapshot *s, SnapshotState state) {
s->state = state;
if (state != old_state)
- log_debug("%s changed %s -> %s",
- UNIT(s)->id,
- snapshot_state_to_string(old_state),
- snapshot_state_to_string(state));
+ log_unit_debug(UNIT(s), "Changed %s -> %s", snapshot_state_to_string(old_state), snapshot_state_to_string(state));
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
}
/* Make sure that only snapshots created via snapshot_create()
* can be loaded */
- if (!s->by_snapshot_create && UNIT(s)->manager->n_reloading <= 0)
+ if (!u->transient && UNIT(s)->manager->n_reloading <= 0)
return -ENOENT;
u->load_state = UNIT_LOADED;
if (s->cleanup)
unit_add_to_cleanup_queue(u);
- return 0;
+ return 1;
}
static int snapshot_stop(Unit *u) {
assert(s->state == SNAPSHOT_ACTIVE);
snapshot_set_state(s, SNAPSHOT_DEAD);
- return 0;
+ return 1;
}
static int snapshot_serialize(Unit *u, FILE *f, FDSet *fds) {
if (streq(key, "state")) {
SnapshotState state;
- if ((state = snapshot_state_from_string(value)) < 0)
- log_debug("Failed to parse state value %s", value);
+ state = snapshot_state_from_string(value);
+ if (state < 0)
+ log_unit_debug(u, "Failed to parse state value: %s", value);
else
s->deserialized_state = state;
} else if (streq(key, "cleanup")) {
- if ((r = parse_boolean(value)) < 0)
- log_debug("Failed to parse cleanup value %s", value);
+ r = parse_boolean(value);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse cleanup value: %s", value);
else
s->cleanup = r;
} else if (streq(key, "wants")) {
- if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, value, NULL, true)) < 0)
+ r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, value, NULL, true);
+ if (r < 0)
return r;
} else
- log_debug("Unknown serialization key '%s'", key);
+ log_unit_debug(u, "Unknown serialization key: %s", key);
return 0;
}
-static UnitActiveState snapshot_active_state(Unit *u) {
+_pure_ static UnitActiveState snapshot_active_state(Unit *u) {
assert(u);
return state_translation_table[SNAPSHOT(u)->state];
}
-static const char *snapshot_sub_state_to_string(Unit *u) {
+_pure_ static const char *snapshot_sub_state_to_string(Unit *u) {
assert(u);
return snapshot_state_to_string(SNAPSHOT(u)->state);
}
-int snapshot_create(Manager *m, const char *name, bool cleanup, DBusError *e, Snapshot **_s) {
- Iterator i;
+int snapshot_create(Manager *m, const char *name, bool cleanup, sd_bus_error *e, Snapshot **_s) {
+ _cleanup_free_ char *n = NULL;
Unit *other, *u = NULL;
- char *n = NULL;
+ Iterator i;
int r;
const char *k;
assert(_s);
if (name) {
- if (!unit_name_is_valid(name, false)) {
- dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name);
- return -EINVAL;
- }
+ if (!unit_name_is_valid(name, UNIT_NAME_PLAIN))
+ return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
- if (unit_name_to_type(name) != UNIT_SNAPSHOT) {
- dbus_set_error(e, BUS_ERROR_UNIT_TYPE_MISMATCH, "Unit name %s lacks snapshot suffix.", name);
- return -EINVAL;
- }
+ if (!endswith(name, ".snapshot"))
+ return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s lacks snapshot suffix.", name);
- if (manager_get_unit(m, name)) {
- dbus_set_error(e, BUS_ERROR_UNIT_EXISTS, "Snapshot %s exists already.", name);
- return -EEXIST;
- }
+ if (manager_get_unit(m, name))
+ return sd_bus_error_setf(e, BUS_ERROR_UNIT_EXISTS, "Snapshot %s exists already.", name);
} else {
if (asprintf(&n, "snapshot-%u.snapshot", ++ m->n_snapshots) < 0)
return -ENOMEM;
- if (!manager_get_unit(m, n))
+ if (!manager_get_unit(m, n)) {
+ name = n;
break;
+ }
- free(n);
+ n = mfree(n);
}
-
- name = n;
}
r = manager_load_unit_prepare(m, name, NULL, e, &u);
- free(n);
-
if (r < 0)
goto fail;
- SNAPSHOT(u)->by_snapshot_create = true;
+ u->transient = true;
manager_dispatch_load_queue(m);
assert(u->load_state == UNIT_LOADED);
HASHMAP_FOREACH_KEY(other, k, m->units, i) {
- if (other->ignore_on_snapshot)
+ if (other->ignore_on_snapshot ||
+ other->transient)
continue;
if (k != other->id)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
continue;
- if ((r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, other, true)) < 0)
+ r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, other, true);
+ if (r < 0)
goto fail;
}
SNAPSHOT(u)->cleanup = cleanup;
*_s = SNAPSHOT(u);
+ log_unit_info(u, "Created snapshot.");
+
return 0;
fail:
void snapshot_remove(Snapshot *s) {
assert(s);
+ log_unit_info(UNIT(s), "Removing snapshot.");
+
unit_add_to_cleanup_queue(UNIT(s));
}
-static const char* const snapshot_state_table[_SNAPSHOT_STATE_MAX] = {
- [SNAPSHOT_DEAD] = "dead",
- [SNAPSHOT_ACTIVE] = "active"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(snapshot_state, SnapshotState);
-
const UnitVTable snapshot_vtable = {
- .suffix = ".snapshot",
.object_size = sizeof(Snapshot),
.no_alias = true,
.no_gc = true,
.init = snapshot_init,
-
.load = snapshot_load,
+
.coldplug = snapshot_coldplug,
.dump = snapshot_dump,
.active_state = snapshot_active_state,
.sub_state_to_string = snapshot_sub_state_to_string,
- .bus_interface = "org.freedesktop.systemd1.Snapshot",
- .bus_message_handler = bus_snapshot_message_handler
+ .bus_vtable = bus_snapshot_vtable
};
projects / thirdparty / systemd.git / blobdiff