logind: support for hybrid sleep (i.e. suspend+hibernate at the same time)

[elogind.git] / src / login / logind-dbus.c

diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index b95cc9bfbba8f45055d722252346e5d119ddd5f5..3bcb91bf13fea32c47f8bf98a65999812074fe81 100644 (file)
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -83,6 +83,7 @@
         "   <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n"          \
         "   <arg name=\"seat\" type=\"s\" direction=\"out\"/>\n"        \
         "   <arg name=\"vtnr\" type=\"u\" direction=\"out\"/>\n"        \
+        "   <arg name=\"existing\" type=\"b\" direction=\"out\"/>\n"    \
         "  </method>\n"                                                 \
         "  <method name=\"ReleaseSession\">\n"                          \
         "   <arg name=\"id\" type=\"s\" direction=\"in\"/>\n"           \
@@ -144,6 +145,9 @@
         "  <method name=\"Hibernate\">\n"                               \
         "   <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n"  \
         "  </method>\n"                                                 \
+        "  <method name=\"HybridSleep\">\n"                             \
+        "   <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n"  \
+        "  </method>\n"                                                 \
         "  <method name=\"CanPowerOff\">\n"                             \
         "   <arg name=\"result\" type=\"s\" direction=\"out\"/>\n"      \
         "  </method>\n"                                                 \
@@ -156,6 +160,9 @@
         "  <method name=\"CanHibernate\">\n"                            \
         "   <arg name=\"result\" type=\"s\" direction=\"out\"/>\n"      \
         "  </method>\n"                                                 \
+        "  <method name=\"CanHybridSleep\">\n"                          \
+        "   <arg name=\"result\" type=\"s\" direction=\"out\"/>\n"      \
+        "  </method>\n"                                                 \
         "  <method name=\"Inhibit\">\n"                                 \
         "   <arg name=\"what\" type=\"s\" direction=\"in\"/>\n"         \
         "   <arg name=\"who\" type=\"s\" direction=\"in\"/>\n"          \
@@ -300,7 +307,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
         User *user = NULL;
         const char *type, *class, *seat, *tty, *display, *remote_user, *remote_host, *service;
         uint32_t uid, leader, audit_id = 0;
-        dbus_bool_t remote, kill_processes;
+        dbus_bool_t remote, kill_processes, exists;
         char **controllers = NULL, **reset_controllers = NULL;
         SessionType t;
         SessionClass c;
@@ -518,6 +525,8 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
 
                         seat = session->seat ? session->seat->id : "";
                         vtnr = session->vtnr;
+                        exists = true;
+
                         b = dbus_message_append_args(
                                         reply,
                                         DBUS_TYPE_STRING, &session->id,
@@ -526,6 +535,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
                                         DBUS_TYPE_UNIX_FD, &fifo_fd,
                                         DBUS_TYPE_STRING, &seat,
                                         DBUS_TYPE_UINT32, &vtnr,
+                                        DBUS_TYPE_BOOLEAN, &exists,
                                         DBUS_TYPE_INVALID);
                         free(p);
 
@@ -642,6 +652,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
         }
 
         seat = s ? s->id : "";
+        exists = false;
         b = dbus_message_append_args(
                         reply,
                         DBUS_TYPE_STRING, &session->id,
@@ -650,6 +661,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
                         DBUS_TYPE_UNIX_FD, &fifo_fd,
                         DBUS_TYPE_STRING, &seat,
                         DBUS_TYPE_UINT32, &vtnr,
+                        DBUS_TYPE_BOOLEAN, &exists,
                         DBUS_TYPE_INVALID);
         free(p);
 
@@ -1048,6 +1060,7 @@ static int bus_manager_can_shutdown_or_sleep(
                 const char *action_multiple_sessions,
                 const char *action_ignore_inhibit,
                 const char *sleep_type,
+                const char *sleep_disk_type,
                 DBusError *error,
                 DBusMessage **_reply) {
 
@@ -1079,6 +1092,17 @@ static int bus_manager_can_shutdown_or_sleep(
                 }
         }
 
+        if (sleep_disk_type) {
+                r = can_sleep_disk(sleep_disk_type);
+                if (r < 0)
+                        return r;
+
+                if (r == 0) {
+                        result = "na";
+                        goto finish;
+                }
+        }
+
         ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), error);
         if (ul == (unsigned long) -1)
                 return -EIO;
@@ -1228,6 +1252,7 @@ static int bus_manager_do_shutdown_or_sleep(
                 const char *action_multiple_sessions,
                 const char *action_ignore_inhibit,
                 const char *sleep_type,
+                const char *sleep_disk_type,
                 DBusError *error,
                 DBusMessage **_reply) {
 
@@ -1265,6 +1290,15 @@ static int bus_manager_do_shutdown_or_sleep(
                         return -ENOTSUP;
         }
 
+        if (sleep_disk_type) {
+                r = can_sleep_disk(sleep_disk_type);
+                if (r < 0)
+                        return r;
+
+                if (r == 0)
+                        return -ENOTSUP;
+        }
+
         ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), error);
         if (ul == (unsigned long) -1)
                 return -EIO;
@@ -2059,7 +2093,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.power-off",
                                 "org.freedesktop.login1.power-off-multiple-sessions",
                                 "org.freedesktop.login1.power-off-ignore-inhibit",
-                                NULL,
+                                NULL, NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2071,7 +2105,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.reboot",
                                 "org.freedesktop.login1.reboot-multiple-sessions",
                                 "org.freedesktop.login1.reboot-ignore-inhibit",
-                                NULL,
+                                NULL, NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2084,7 +2118,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.suspend",
                                 "org.freedesktop.login1.suspend-multiple-sessions",
                                 "org.freedesktop.login1.suspend-ignore-inhibit",
-                                "mem",
+                                "mem", NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2096,7 +2130,20 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.hibernate",
                                 "org.freedesktop.login1.hibernate-multiple-sessions",
                                 "org.freedesktop.login1.hibernate-ignore-inhibit",
-                                "disk",
+                                "disk", NULL,
+                                &error, &reply);
+                if (r < 0)
+                        return bus_send_error_reply(connection, message, &error, r);
+
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "HybridSleep")) {
+                r = bus_manager_do_shutdown_or_sleep(
+                                m, connection, message,
+                                SPECIAL_HYBRID_SLEEP_TARGET,
+                                INHIBIT_SLEEP,
+                                "org.freedesktop.login1.hibernate",
+                                "org.freedesktop.login1.hibernate-multiple-sessions",
+                                "org.freedesktop.login1.hibernate-ignore-inhibit",
+                                "disk", "suspend",
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2109,7 +2156,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.power-off",
                                 "org.freedesktop.login1.power-off-multiple-sessions",
                                 "org.freedesktop.login1.power-off-ignore-inhibit",
-                                NULL,
+                                NULL, NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2120,7 +2167,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.reboot",
                                 "org.freedesktop.login1.reboot-multiple-sessions",
                                 "org.freedesktop.login1.reboot-ignore-inhibit",
-                                NULL,
+                                NULL, NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2132,7 +2179,7 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.suspend",
                                 "org.freedesktop.login1.suspend-multiple-sessions",
                                 "org.freedesktop.login1.suspend-ignore-inhibit",
-                                "mem",
+                                "mem", NULL,
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);
@@ -2144,7 +2191,19 @@ static DBusHandlerResult manager_message_handler(
                                 "org.freedesktop.login1.hibernate",
                                 "org.freedesktop.login1.hibernate-multiple-sessions",
                                 "org.freedesktop.login1.hibernate-ignore-inhibit",
-                                "disk",
+                                "disk", NULL,
+                                &error, &reply);
+                if (r < 0)
+                        return bus_send_error_reply(connection, message, &error, r);
+
+        } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CanHybridSleep")) {
+                r = bus_manager_can_shutdown_or_sleep(
+                                m, connection, message,
+                                INHIBIT_SLEEP,
+                                "org.freedesktop.login1.hibernate",
+                                "org.freedesktop.login1.hibernate-multiple-sessions",
+                                "org.freedesktop.login1.hibernate-ignore-inhibit",
+                                "disk", "suspend",
                                 &error, &reply);
                 if (r < 0)
                         return bus_send_error_reply(connection, message, &error, r);