systemctl: rename a few status lines

[elogind.git] / src / swap.c

diff --git a/src/swap.c b/src/swap.c
index 2e3e995c3e6c6386185fedbea564b47dabf671ec..4a672fbdffe047560ab2430bfc620ce973c28f4e 100644 (file)
--- a/src/swap.c
+++ b/src/swap.c
@@ -1,4 +1,4 @@
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
 /***
   This file is part of systemd.
@@ -77,10 +77,7 @@ int swap_add_one_mount_link(Swap *s, Mount *m) {
         if (!path_startswith(s->what, m->where))
                 return 0;
 
-        if ((r = unit_add_dependency(UNIT(m), UNIT_BEFORE, UNIT(s), true)) < 0)
-                return r;
-
-        if ((r = unit_add_dependency(UNIT(s), UNIT_REQUIRES, UNIT(m), true)) < 0)
+        if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0)
                 return r;
 
         return 0;
@@ -113,7 +110,7 @@ static int swap_add_target_links(Swap *s) {
         else
                 return 0;
 
-        if ((r = manager_load_unit(s->meta.manager, SPECIAL_SWAP_TARGET, NULL, &tu)) < 0)
+        if ((r = manager_load_unit(s->meta.manager, SPECIAL_SWAP_TARGET, NULL, NULL, &tu)) < 0)
                 return r;
 
         if (!p->noauto && p->handle && s->meta.manager->running_as == MANAGER_SYSTEM)
@@ -123,6 +120,24 @@ static int swap_add_target_links(Swap *s) {
         return unit_add_dependency(UNIT(s), UNIT_BEFORE, tu, true);
 }
 
+static int swap_add_default_dependencies(Swap *s) {
+        int r;
+
+        assert(s);
+
+        if (s->meta.manager->running_as == MANAGER_SYSTEM) {
+
+                if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
+                        return r;
+
+                /* Note that by default we don't disable swap devices
+                 * on shutdown. i.e. there is no umount.target
+                 * conflicts here. */
+        }
+
+        return 0;
+}
+
 static int swap_verify(Swap *s) {
         bool b;
         char *e;
@@ -180,7 +195,9 @@ static int swap_load(Unit *u) {
                         if ((r = unit_set_description(u, s->what)) < 0)
                                 return r;
 
-                if ((r = unit_add_node_link(u, s->what, u->meta.manager->running_as == MANAGER_SYSTEM)) < 0)
+                if ((r = unit_add_node_link(u, s->what,
+                                            u->meta.manager->running_as == MANAGER_SYSTEM &&
+                                            u->meta.manager->swap_on_plug)) < 0)
                         return r;
 
                 if ((r = swap_add_mount_links(s)) < 0)
@@ -188,6 +205,10 @@ static int swap_load(Unit *u) {
 
                 if ((r = swap_add_target_links(s)) < 0)
                         return r;
+
+                if (s->meta.default_dependencies)
+                        if ((r = swap_add_default_dependencies(s)) < 0)
+                                return r;
         }
 
         return swap_verify(s);
@@ -381,7 +402,7 @@ static void swap_dump(Unit *u, FILE *f, const char *prefix) {
 static void swap_enter_dead(Swap *s, bool success) {
         assert(s);
 
-        swap_set_state(s, success ? SWAP_MAINTENANCE : SWAP_DEAD);
+        swap_set_state(s, success ? SWAP_DEAD : SWAP_MAINTENANCE);
 }
 
 static int swap_start(Unit *u) {
@@ -523,14 +544,6 @@ static void swap_shutdown(Manager *m) {
         }
 }
 
-static const char* const swap_state_table[_SWAP_STATE_MAX] = {
-        [SWAP_DEAD] = "dead",
-        [SWAP_ACTIVE] = "active",
-        [SWAP_MAINTENANCE] = "maintenance"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState);
-
 static int swap_enumerate(Manager *m) {
         int r;
         assert(m);
@@ -545,11 +558,29 @@ static int swap_enumerate(Manager *m) {
         return r;
 }
 
+static void swap_reset_maintenance(Unit *u) {
+        Swap *s = SWAP(u);
+
+        assert(s);
+
+        if (s->state == SWAP_MAINTENANCE)
+                swap_set_state(s, SWAP_DEAD);
+}
+
+static const char* const swap_state_table[_SWAP_STATE_MAX] = {
+        [SWAP_DEAD] = "dead",
+        [SWAP_ACTIVE] = "active",
+        [SWAP_MAINTENANCE] = "maintenance"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState);
+
 const UnitVTable swap_vtable = {
         .suffix = ".swap",
 
         .no_instances = true,
         .no_isolate = true,
+        .show_status = true,
 
         .init = swap_init,
         .load = swap_load,
@@ -570,7 +601,11 @@ const UnitVTable swap_vtable = {
 
         .check_gc = swap_check_gc,
 
+        .bus_interface = "org.freedesktop.systemd1.Swap",
         .bus_message_handler = bus_swap_message_handler,
+        .bus_invalidating_properties =  bus_swap_invalidating_properties,
+
+        .reset_maintenance = swap_reset_maintenance,
 
         .enumerate = swap_enumerate,
         .shutdown = swap_shutdown