build-sys: move source files to subdirectory

1 files changed, 956 insertions, 0 deletions

diff --git a/src/systemadm.vala b/src/systemadm.vala
new file mode 100644
index 0000000000..bd0062a069
--- /dev/null
+++ b/src/systemadm.vala
@@ -0,0 +1,956 @@
+/***
+  This file is part of systemd.
+
+  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
+  (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.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+using Gtk;
+using GLib;
+using DBus;
+using Pango;
+
+static bool session = false;
+
+public class LeftLabel : Label {
+        public LeftLabel(string? text = null) {
+                if (text != null)
+                        set_markup("<b>%s</b>".printf(text));
+                set_alignment(0, 0);
+                set_padding(6, 0);
+        }
+}
+
+public class RightLabel : Label {
+        public RightLabel(string? text = null) {
+                set_text_or_na(text);
+                set_alignment(0, 0);
+                set_ellipsize(EllipsizeMode.START);
+                set_selectable(true);
+        }
+
+        public void set_text_or_na(string? text = null) {
+                if (text == null || text == "")
+                        set_markup("<i>n/a</i>");
+                else
+                        set_text(text);
+        }
+
+        public void set_markup_or_na(string? text = null) {
+                if (text == null || text == "")
+                        set_markup("<i>n/a</i>");
+                else
+                        set_markup(text);
+        }
+}
+
+public class MainWindow : Window {
+
+        private string? current_unit_id;
+        private uint32 current_job_id;
+
+        private TreeView unit_view;
+        private TreeView job_view;
+
+        private ListStore unit_model;
+        private ListStore job_model;
+
+        private Button start_button;
+        private Button stop_button;
+        private Button restart_button;
+        private Button reload_button;
+        private Button cancel_button;
+
+        private Entry unit_load_entry;
+        private Button unit_load_button;
+
+        private Button server_snapshot_button;
+        private Button server_reload_button;
+
+        private Connection bus;
+        private Manager manager;
+
+        private RightLabel unit_id_label;
+        private RightLabel unit_aliases_label;
+        private RightLabel unit_dependency_label;
+        private RightLabel unit_description_label;
+        private RightLabel unit_load_state_label;
+        private RightLabel unit_active_state_label;
+        private RightLabel unit_sub_state_label;
+        private RightLabel unit_fragment_path_label;
+        private RightLabel unit_active_enter_timestamp_label;
+        private RightLabel unit_active_exit_timestamp_label;
+        private RightLabel unit_can_start_label;
+        private RightLabel unit_can_reload_label;
+        private RightLabel unit_cgroup_label;
+
+        private RightLabel job_id_label;
+        private RightLabel job_state_label;
+        private RightLabel job_type_label;
+
+        private ComboBox unit_type_combo_box;
+
+        public MainWindow() throws DBus.Error {
+                title = session ? "systemd Session Manager" : "systemd System Manager";
+                position = WindowPosition.CENTER;
+                set_default_size(1000, 700);
+                set_border_width(12);
+                destroy += Gtk.main_quit;
+
+                Notebook notebook = new Notebook();
+                add(notebook);
+
+                Box unit_vbox = new VBox(false, 12);
+                notebook.append_page(unit_vbox, new Label("Units"));
+                unit_vbox.set_border_width(12);
+
+                Box job_vbox = new VBox(false, 12);
+                notebook.append_page(job_vbox, new Label("Jobs"));
+                job_vbox.set_border_width(12);
+
+                unit_type_combo_box = new ComboBox.text();
+                Box type_hbox = new HBox(false, 6);
+                type_hbox.pack_start(unit_type_combo_box, false, false, 0);
+                unit_vbox.pack_start(type_hbox, false, false, 0);
+
+                unit_type_combo_box.append_text("Show All Units");
+                unit_type_combo_box.append_text("Show Only Live Units");
+                unit_type_combo_box.append_text("Services");
+                unit_type_combo_box.append_text("Sockets");
+                unit_type_combo_box.append_text("Devices");
+                unit_type_combo_box.append_text("Mounts");
+                unit_type_combo_box.append_text("Automounts");
+                unit_type_combo_box.append_text("Targets");
+                unit_type_combo_box.append_text("Snapshots");
+                unit_type_combo_box.set_active(1);
+                unit_type_combo_box.changed += unit_type_changed;
+
+                unit_load_entry = new Entry();
+                unit_load_button = new Button.with_mnemonic("_Load");
+                unit_load_button.set_sensitive(false);
+
+                unit_load_entry.changed += on_unit_load_entry_changed;
+                unit_load_entry.activate += on_unit_load;
+                unit_load_button.clicked += on_unit_load;
+
+                Box unit_load_hbox = new HBox(false, 6);
+                unit_load_hbox.pack_start(unit_load_entry, false, true, 0);
+                unit_load_hbox.pack_start(unit_load_button, false, true, 0);
+
+                server_snapshot_button = new Button.with_mnemonic("Take S_napshot");
+                server_reload_button = new Button.with_mnemonic("Reload _Configuration");
+
+                server_snapshot_button.clicked += on_server_snapshot;
+                server_reload_button.clicked += on_server_reload;
+
+                type_hbox.pack_end(server_snapshot_button, false, true, 0);
+                type_hbox.pack_end(server_reload_button, false, true, 0);
+                type_hbox.pack_end(unit_load_hbox, false, true, 24);
+
+                unit_model = new ListStore(7, typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(Unit));
+                job_model = new ListStore(6, typeof(string), typeof(string), typeof(string), typeof(string), typeof(Job), typeof(uint32));
+
+                TreeModelFilter unit_model_filter;
+                unit_model_filter = new TreeModelFilter(unit_model, null);
+                unit_model_filter.set_visible_func(unit_filter);
+
+                unit_view = new TreeView.with_model(unit_model_filter);
+                job_view = new TreeView.with_model(job_model);
+
+                unit_view.cursor_changed += unit_changed;
+                job_view.cursor_changed += job_changed;
+
+                unit_view.insert_column_with_attributes(-1, "Load State", new CellRendererText(), "text", 2);
+                unit_view.insert_column_with_attributes(-1, "Active State", new CellRendererText(), "text", 3);
+                unit_view.insert_column_with_attributes(-1, "Unit State", new CellRendererText(), "text", 4);
+                unit_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 0);
+                unit_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 5);
+
+                job_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 0);
+                job_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 1);
+                job_view.insert_column_with_attributes(-1, "Type", new CellRendererText(), "text", 2);
+                job_view.insert_column_with_attributes(-1, "State", new CellRendererText(), "text", 3);
+
+                ScrolledWindow scroll = new ScrolledWindow(null, null);
+                scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
+                scroll.set_shadow_type(ShadowType.IN);
+                scroll.add(unit_view);
+                unit_vbox.pack_start(scroll, true, true, 0);
+
+                scroll = new ScrolledWindow(null, null);
+                scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
+                scroll.set_shadow_type(ShadowType.IN);
+                scroll.add(job_view);
+                job_vbox.pack_start(scroll, true, true, 0);
+
+                unit_id_label = new RightLabel();
+                unit_aliases_label = new RightLabel();
+                unit_dependency_label = new RightLabel();
+                unit_description_label = new RightLabel();
+                unit_load_state_label = new RightLabel();
+                unit_active_state_label = new RightLabel();
+                unit_sub_state_label = new RightLabel();
+                unit_fragment_path_label = new RightLabel();
+                unit_active_enter_timestamp_label = new RightLabel();
+                unit_active_exit_timestamp_label = new RightLabel();
+                unit_can_start_label = new RightLabel();
+                unit_can_reload_label = new RightLabel();
+                unit_cgroup_label = new RightLabel();
+
+                job_id_label = new RightLabel();
+                job_state_label = new RightLabel();
+                job_type_label = new RightLabel();
+
+                unit_dependency_label.set_track_visited_links(false);
+                unit_dependency_label.set_selectable(false);
+                unit_dependency_label.activate_link += on_activate_link;
+
+                Table unit_table = new Table(8, 6, false);
+                unit_table.set_row_spacings(6);
+                unit_table.set_border_width(0);
+                unit_vbox.pack_start(unit_table, false, true, 0);
+
+                Table job_table = new Table(2, 2, false);
+                job_table.set_row_spacings(6);
+                job_table.set_border_width(0);
+                job_vbox.pack_start(job_table, false, true, 0);
+
+                unit_table.attach(new LeftLabel("Id:"),                     0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_id_label,                            1, 6, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Aliases:"),                0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_aliases_label,                       1, 6, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Description:"),            0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_description_label,                   1, 6, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Dependencies:"),           0, 1, 3, 4, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_dependency_label,                    1, 6, 3, 4, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Fragment Path:"),          0, 1, 4, 5, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_fragment_path_label,                 1, 6, 4, 5, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Control Group:"),          0, 1, 5, 6, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_cgroup_label,                        1, 6, 5, 6, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+
+                unit_table.attach(new LeftLabel("Load State:"),             0, 1, 6, 7, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_load_state_label,                    1, 2, 6, 7, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Active State:"),           0, 1, 7, 8, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_active_state_label,                  1, 2, 7, 8, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Unit State:"),             0, 1, 8, 9, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_sub_state_label,                     1, 2, 8, 9, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+
+                unit_table.attach(new LeftLabel("Active Enter Timestamp:"), 2, 3, 7, 8, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_active_enter_timestamp_label,        3, 4, 7, 8, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Active Exit Timestamp:"),  2, 3, 8, 9, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_active_exit_timestamp_label,         3, 4, 8, 9, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+
+                unit_table.attach(new LeftLabel("Can Start/Stop:"),         4, 5, 7, 8, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_can_start_label,                     5, 6, 7, 8, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(new LeftLabel("Can Reload:"),             4, 5, 8, 9, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                unit_table.attach(unit_can_reload_label,                    5, 6, 8, 9, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+
+                job_table.attach(new LeftLabel("Id:"),                      0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                job_table.attach(job_id_label,                              1, 2, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                job_table.attach(new LeftLabel("State:"),                   0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                job_table.attach(job_state_label,                           1, 2, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                job_table.attach(new LeftLabel("Type:"),                    0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+                job_table.attach(job_type_label,                            1, 2, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
+
+                ButtonBox bbox = new HButtonBox();
+                bbox.set_layout(ButtonBoxStyle.START);
+                bbox.set_spacing(6);
+                unit_vbox.pack_start(bbox, false, true, 0);
+
+                start_button = new Button.with_mnemonic("_Start");
+                stop_button = new Button.with_mnemonic("Sto_p");
+                reload_button = new Button.with_mnemonic("_Reload");
+                restart_button = new Button.with_mnemonic("Res_tart");
+
+                start_button.clicked += on_start;
+                stop_button.clicked += on_stop;
+                reload_button.clicked += on_reload;
+                restart_button.clicked += on_restart;
+
+                bbox.pack_start(start_button, false, true, 0);
+                bbox.pack_start(stop_button, false, true, 0);
+                bbox.pack_start(restart_button, false, true, 0);
+                bbox.pack_start(reload_button, false, true, 0);
+
+                bbox = new HButtonBox();
+                bbox.set_layout(ButtonBoxStyle.START);
+                bbox.set_spacing(6);
+                job_vbox.pack_start(bbox, false, true, 0);
+
+                cancel_button = new Button.with_mnemonic("_Cancel");
+
+                cancel_button.clicked += on_cancel;
+
+                bbox.pack_start(cancel_button, false, true, 0);
+
+                bus = Bus.get(session ? BusType.SESSION : BusType.SYSTEM);
+
+                manager = bus.get_object(
+                                "org.freedesktop.systemd1",
+                                "/org/freedesktop/systemd1",
+                                "org.freedesktop.systemd1.Manager") as Manager;
+
+                manager.unit_new += on_unit_new;
+                manager.job_new += on_job_new;
+                manager.unit_removed += on_unit_removed;
+                manager.job_removed += on_job_removed;
+
+                manager.subscribe();
+
+                clear_unit();
+                clear_job();
+                populate_unit_model();
+                populate_job_model();
+        }
+
+        public void populate_unit_model() throws DBus.Error {
+                unit_model.clear();
+
+                var list = manager.list_units();
+
+                foreach (var i in list) {
+                        TreeIter iter;
+
+                        Unit u = bus.get_object(
+                                        "org.freedesktop.systemd1",
+                                        i.unit_path,
+                                        "org.freedesktop.systemd1.Unit") as Unit;
+
+                        u.changed += on_unit_changed;
+
+                        unit_model.append(out iter);
+                        unit_model.set(iter,
+                                       0, i.id,
+                                       1, i.description,
+                                       2, i.load_state,
+                                       3, i.active_state,
+                                       4, i.sub_state,
+                                       5, i.job_type != "" ? "→ %s".printf(i.job_type) : "",
+                                       6, u);
+                }
+        }
+
+        public void populate_job_model() throws DBus.Error {
+                job_model.clear();
+
+                var list = manager.list_jobs();
+
+                foreach (var i in list) {
+                        TreeIter iter;
+
+                        Job j = bus.get_object(
+                                        "org.freedesktop.systemd1",
+                                        i.job_path,
+                                        "org.freedesktop.systemd1.Job") as Job;
+
+                        j.changed += on_job_changed;
+
+                        job_model.append(out iter);
+                        job_model.set(iter,
+                                      0, "%u".printf(i.id),
+                                      1, i.name,
+                                      2, "→ %s".printf(i.type),
+                                      3, i.state,
+                                      4, j,
+                                      5, i.id);
+                }
+        }
+
+        public Unit? get_current_unit() {
+                TreePath p;
+                unit_view.get_cursor(out p, null);
+
+                if (p == null)
+                        return null;
+
+                TreeModel model = unit_view.get_model();
+                TreeIter iter;
+                Unit u;
+
+                model.get_iter(out iter, p);
+                model.get(iter, 6, out u);
+
+                return u;
+        }
+
+        public void unit_changed() {
+                Unit u = get_current_unit();
+
+                if (u == null)
+                        clear_unit();
+                else
+                        show_unit(u);
+        }
+
+        public void clear_unit() {
+                current_unit_id = null;
+
+                start_button.set_sensitive(false);
+                stop_button.set_sensitive(false);
+                reload_button.set_sensitive(false);
+                restart_button.set_sensitive(false);
+
+                unit_id_label.set_text_or_na();
+                unit_aliases_label.set_text_or_na();
+                unit_description_label.set_text_or_na();
+                unit_description_label.set_text_or_na();
+                unit_load_state_label.set_text_or_na();
+                unit_active_state_label.set_text_or_na();
+                unit_sub_state_label.set_text_or_na();
+                unit_fragment_path_label.set_text_or_na();
+                unit_active_enter_timestamp_label.set_text_or_na();
+                unit_active_exit_timestamp_label.set_text_or_na();
+                unit_can_reload_label.set_text_or_na();
+                unit_can_start_label.set_text_or_na();
+                unit_cgroup_label.set_text_or_na();
+        }
+
+        public string make_dependency_string(string? prefix, string word, string[] dependencies) {
+                bool first = true;
+                string r;
+
+                if (prefix == null)
+                        r = "";
+                else
+                        r = prefix;
+
+                foreach (string i in dependencies) {
+                        if (r != "")
+                                r += first ? "\n" : ",";
+
+                        if (first) {
+                                r += word;
+                                first = false;
+                        }
+
+                        r += " <a href=\"" + i + "\">" + i + "</a>";
+                }
+
+                return r;
+        }
+
+        public void show_unit(Unit unit) {
+                current_unit_id = unit.id;
+
+                unit_id_label.set_text_or_na(current_unit_id);
+
+                string a = "";
+                foreach (string i in unit.names) {
+                        if (i == current_unit_id)
+                                continue;
+
+                        if (a == "")
+                                a = i;
+                        else
+                                a += "\n" + i;
+                }
+
+                unit_aliases_label.set_text_or_na(a);
+
+                string[]
+                        requires = unit.requires,
+                        requires_overridable = unit.requires_overridable,
+                        requisite = unit.requisite,
+                        requisite_overridable = unit.requisite_overridable,
+                        wants = unit.wants,
+                        required_by = unit.required_by,
+                        required_by_overridable = unit.required_by_overridable,
+                        wanted_by = unit.wanted_by,
+                        conflicts = unit.conflicts,
+                        before = unit.before,
+                        after = unit.after;
+
+                unit_dependency_label.set_markup_or_na(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(
+                                make_dependency_string(null,
+                                "requires", requires),
+                                "overridable requires", requires_overridable),
+                                "requisite", requisite),
+                                "overridable requisite", requisite_overridable),
+                                "wants", wants),
+                                "conflicts", conflicts),
+                                "required by", required_by),
+                                "overridable required by", required_by_overridable),
+                                "wanted by", wanted_by),
+                                "after", after),
+                                "before", before));
+
+                unit_description_label.set_text_or_na(unit.description);
+                unit_load_state_label.set_text_or_na(unit.load_state);
+                unit_active_state_label.set_text_or_na(unit.active_state);
+                unit_sub_state_label.set_text_or_na(unit.sub_state);
+                unit_fragment_path_label.set_text_or_na(unit.fragment_path);
+
+                uint64 t = unit.active_enter_timestamp;
+                if (t > 0) {
+                        Time timestamp = Time.local((time_t) (t / 1000000));
+                        unit_active_enter_timestamp_label.set_text_or_na(timestamp.format("%a, %d %b %Y %H:%M:%S %z"));
+                } else
+                        unit_active_enter_timestamp_label.set_text_or_na();
+
+                t = unit.active_exit_timestamp;
+                if (t > 0) {
+                        Time timestamp = Time.local((time_t) (t / 1000000));
+                        unit_active_exit_timestamp_label.set_text_or_na(timestamp.format("%a, %d %b %Y %H:%M:%S %z"));
+                } else
+                        unit_active_exit_timestamp_label.set_text_or_na();
+
+                bool b = unit.can_start;
+                start_button.set_sensitive(b);
+                stop_button.set_sensitive(b);
+                restart_button.set_sensitive(b);
+                unit_can_start_label.set_text_or_na(b ? "Yes" : "No");
+
+                b = unit.can_reload;
+                reload_button.set_sensitive(b);
+                unit_can_reload_label.set_text_or_na(b ? "Yes" : "No");
+
+                unit_cgroup_label.set_text_or_na(unit.default_control_group);
+        }
+
+        public Job? get_current_job() {
+                TreePath p;
+                job_view.get_cursor(out p, null);
+
+                if (p == null)
+                        return null;
+
+                TreeIter iter;
+                TreeModel model = job_view.get_model();
+                Job *j;
+
+                model.get_iter(out iter, p);
+                model.get(iter, 4, out j);
+
+                return j;
+        }
+
+        public void job_changed() {
+                Job j = get_current_job();
+
+                if (j == null)
+                        clear_job();
+                else
+                        show_job(j);
+        }
+
+        public void clear_job() {
+                current_job_id = 0;
+
+                job_id_label.set_text_or_na();
+                job_state_label.set_text_or_na();
+                job_type_label.set_text_or_na();
+
+                cancel_button.set_sensitive(false);
+        }
+
+        public void show_job(Job job) {
+                current_job_id = job.id;
+
+                job_id_label.set_text_or_na("%u".printf(current_job_id));
+                job_state_label.set_text_or_na(job.state);
+                job_type_label.set_text_or_na(job.job_type);
+
+                cancel_button.set_sensitive(true);
+        }
+
+        public void on_start() {
+                Unit u = get_current_unit();
+
+                if (u == null)
+                        return;
+
+                try {
+                        u.start("replace");
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_stop() {
+                Unit u = get_current_unit();
+
+                if (u == null)
+                        return;
+
+                try {
+                        u.stop("replace");
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_reload() {
+                Unit u = get_current_unit();
+
+                if (u == null)
+                        return;
+
+                try {
+                        u.reload("replace");
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_restart() {
+                Unit u = get_current_unit();
+
+                if (u == null)
+                        return;
+
+                try {
+                        u.restart("replace");
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_cancel() {
+                Job j = get_current_job();
+
+                if (j == null)
+                        return;
+
+                try {
+                        j.cancel();
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void update_unit_iter(TreeIter iter, string id, Unit u) {
+
+                string t = "";
+                Unit.JobLink jl = u.job;
+
+                if (jl.id != 0) {
+                        Job j = bus.get_object(
+                                        "org.freedesktop.systemd1",
+                                        jl.path,
+                                        "org.freedesktop.systemd1.Job") as Job;
+
+                        t = j.job_type;
+                }
+
+                unit_model.set(iter,
+                               0, id,
+                               1, u.description,
+                               2, u.load_state,
+                               3, u.active_state,
+                               4, u.sub_state,
+                               5, t != "" ? "→ %s".printf(t) : "",
+                               6, u);
+        }
+
+        public void on_unit_new(string id, ObjectPath path) {
+                Unit u = bus.get_object(
+                                "org.freedesktop.systemd1",
+                                path,
+                                "org.freedesktop.systemd1.Unit") as Unit;
+
+                u.changed += on_unit_changed;
+
+                TreeIter iter;
+                unit_model.append(out iter);
+                update_unit_iter(iter, id, u);
+        }
+
+        public void update_job_iter(TreeIter iter, uint32 id, Job j) {
+                job_model.set(iter,
+                              0, "%u".printf(id),
+                              1, j.unit.id,
+                              2, "→ %s".printf(j.job_type),
+                              3, j.state,
+                              4, j,
+                              5, id);
+        }
+
+        public void on_job_new(uint32 id, ObjectPath path) {
+                Job j = bus.get_object(
+                                "org.freedesktop.systemd1",
+                                path,
+                                "org.freedesktop.systemd1.Job") as Job;
+
+                j.changed += on_job_changed;
+
+                TreeIter iter;
+                job_model.append(out iter);
+                update_job_iter(iter, id, j);
+        }
+
+        public void on_unit_removed(string id, ObjectPath path) {
+                TreeIter iter;
+                if (!(unit_model.get_iter_first(out iter)))
+                        return;
+
+                do {
+                        string name;
+
+                        unit_model.get(iter, 0, out name);
+
+                        if (id == name) {
+                                if (current_unit_id == name)
+                                        clear_unit();
+
+                                unit_model.remove(iter);
+                                break;
+                        }
+
+                } while (unit_model.iter_next(ref iter));
+        }
+
+        public void on_job_removed(uint32 id, ObjectPath path) {
+                TreeIter iter;
+                if (!(job_model.get_iter_first(out iter)))
+                        return;
+
+                do {
+                        uint32 j;
+
+                        job_model.get(iter, 5, out j);
+
+                        if (id == j) {
+                                if (current_job_id == j)
+                                        clear_job();
+
+                                job_model.remove(iter);
+
+                                break;
+                        }
+
+                } while (job_model.iter_next(ref iter));
+        }
+
+        public void on_unit_changed(Unit u) {
+                TreeIter iter;
+                string id;
+
+                if (!(unit_model.get_iter_first(out iter)))
+                        return;
+
+                id = u.id;
+
+                do {
+                        string name;
+
+                        unit_model.get(iter, 0, out name);
+
+                        if (id == name) {
+                                update_unit_iter(iter, id, u);
+
+                                if (current_unit_id == id)
+                                        show_unit(u);
+
+                                break;
+                        }
+
+                } while (unit_model.iter_next(ref iter));
+        }
+
+        public void on_job_changed(Job j) {
+                TreeIter iter;
+                uint32 id;
+
+                if (!(job_model.get_iter_first(out iter)))
+                        return;
+
+                id = j.id;
+
+                do {
+                        uint32 k;
+
+                        job_model.get(iter, 5, out k);
+
+                        if (id == k) {
+                                update_job_iter(iter, id, j);
+
+                                if (current_job_id == id)
+                                        show_job(j);
+
+                                break;
+                        }
+
+                } while (job_model.iter_next(ref iter));
+        }
+
+        public bool unit_filter(TreeModel model, TreeIter iter) {
+                string id, active_state, job;
+
+                model.get(iter, 0, out id, 3, out active_state, 5, out job);
+
+                if (id == null)
+                        return false;
+
+                switch (unit_type_combo_box.get_active()) {
+
+                        case 0:
+                                return true;
+
+                        case 1:
+                                return active_state != "inactive" || job != "";
+
+                        case 2:
+                                return id.has_suffix(".service");
+
+                        case 3:
+                                return id.has_suffix(".socket");
+
+                        case 4:
+                                return id.has_suffix(".device");
+
+                        case 5:
+                                return id.has_suffix(".mount");
+
+                        case 6:
+                                return id.has_suffix(".automount");
+
+                        case 7:
+                                return id.has_suffix(".target");
+
+                        case 8:
+                                return id.has_suffix(".snapshot");
+                }
+
+                return false;
+        }
+
+        public void unit_type_changed() {
+                TreeModelFilter model = (TreeModelFilter) unit_view.get_model();
+
+                model.refilter();
+        }
+
+        public void on_server_reload() {
+                try {
+                        manager.reload();
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_server_snapshot() {
+                try {
+                        manager.create_snapshot();
+
+                        if (unit_type_combo_box.get_active() != 0)
+                                unit_type_combo_box.set_active(8);
+
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_unit_load() {
+                string t = unit_load_entry.get_text();
+
+                if (t == "")
+                        return;
+
+                try {
+                        var path = manager.load_unit(t);
+
+                        Unit u = bus.get_object(
+                                        "org.freedesktop.systemd1",
+                                        path,
+                                        "org.freedesktop.systemd1.Unit") as Unit;
+
+                        var m = new MessageDialog(this,
+                                                  DialogFlags.DESTROY_WITH_PARENT,
+                                                  MessageType.INFO,
+                                                  ButtonsType.CLOSE,
+                                                  "Unit available as id %s", u.id);
+                        m.title = "Unit";
+                        m.run();
+                        m.destroy();
+
+                        show_unit(u);
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+        }
+
+        public void on_unit_load_entry_changed() {
+                unit_load_button.set_sensitive(unit_load_entry.get_text() != "");
+        }
+
+        public bool on_activate_link(string uri) {
+
+                try {
+                        string path = manager.get_unit(uri);
+
+                        Unit u = bus.get_object(
+                                        "org.freedesktop.systemd1",
+                                        path,
+                                        "org.freedesktop.systemd1.Unit") as Unit;
+
+                        show_unit(u);
+                } catch (DBus.Error e) {
+                        show_error(e.message);
+                }
+
+                return true;
+        }
+
+        public void show_error(string e) {
+                var m = new MessageDialog(this,
+                                          DialogFlags.DESTROY_WITH_PARENT,
+                                          MessageType.ERROR,
+                                          ButtonsType.CLOSE, "%s", e);
+                m.title = "Error";
+                m.run();
+                m.destroy();
+        }
+
+}
+
+static const OptionEntry entries[] = {
+        { "session", 0,   0,                   OptionArg.NONE,   out session, "Connect to session bus", null },
+        { "system",  0,   OptionFlags.REVERSE, OptionArg.NONE,   out session, "Connect to system bus", null },
+        { null }
+};
+
+void show_error(string e) {
+        var m = new MessageDialog(null, 0, MessageType.ERROR, ButtonsType.CLOSE, "%s", e);
+        m.run();
+        m.destroy();
+}
+
+int main (string[] args) {
+
+        try {
+                Gtk.init_with_args(ref args, "[OPTION...]", entries, "systemadm");
+
+                MainWindow window = new MainWindow();
+                window.show_all();
+
+                Gtk.main();
+        } catch (DBus.Error e) {
+                show_error(e.message);
+        } catch (GLib.Error e) {
+                show_error(e.message);
+        }
+
+        return 0;
+}