systemadm.vala

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU General Public License as published by
   8   the Free Software Foundation; either version 2 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 using Gtk;
  21 using GLib;
  22 using DBus;
  23 using Pango;
  24
  25 public class LeftLabel : Label {
  26         public LeftLabel(string? text = null) {
  27                 if (text != null)
  28                         set_markup("<b>%s</b>".printf(text));
  29                 set_alignment(1, 0);
  30                 set_padding(6, 0);
  31         }
  32 }
  33
  34 public class RightLabel : Label {
  35         public RightLabel(string? text = null) {
  36                 set_text_or_na(text);
  37                 set_alignment(0, 1);
  38                 set_ellipsize(EllipsizeMode.START);
  39                 set_selectable(true);
  40         }
  41
  42         public void set_text_or_na(string? text = null) {
  43                 if (text == null || text == "")
  44                         set_markup("<i>n/a</i>");
  45                 else
  46                         set_text(text);
  47         }
  48 }
  49
  50 public class MainWindow : Window {
  51
  52         private TreeView unit_view;
  53         private TreeView job_view;
  54
  55         private ListStore unit_model;
  56         private ListStore job_model;
  57
  58         private Button start_button;
  59         private Button stop_button;
  60         private Button restart_button;
  61         private Button reload_button;
  62         private Button cancel_button;
  63
  64         private Connection bus;
  65         private Manager manager;
  66
  67         private RightLabel unit_id_label;
  68         private RightLabel unit_description_label;
  69         private RightLabel unit_load_state_label;
  70         private RightLabel unit_active_state_label;
  71         private RightLabel unit_load_path_label;
  72         private RightLabel unit_active_enter_timestamp_label;
  73         private RightLabel unit_active_exit_timestamp_label;
  74         private RightLabel unit_can_start_label;
  75         private RightLabel unit_can_reload_label;
  76
  77         private RightLabel job_id_label;
  78         private RightLabel job_state_label;
  79         private RightLabel job_type_label;
  80
  81         public MainWindow() throws DBus.Error {
  82                 title = "systemdadm";
  83                 position = WindowPosition.CENTER;
  84                 set_default_size(1000, 700);
  85                 set_border_width(12);
  86                 destroy += Gtk.main_quit;
  87
  88                 Notebook notebook = new Notebook();
  89                 add(notebook);
  90
  91                 Box unit_vbox = new VBox(false, 6);
  92                 notebook.append_page(unit_vbox, new Label("Units"));
  93                 unit_vbox.set_border_width(12);
  94
  95                 Box job_vbox = new VBox(false, 6);
  96                 notebook.append_page(job_vbox, new Label("Jobs"));
  97                 job_vbox.set_border_width(12);
  98
  99
 100                 unit_model = new ListStore(6, typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(Unit));
 101                 job_model = new ListStore(5, typeof(string), typeof(string), typeof(string), typeof(string), typeof(Job));
 102
 103                 unit_view = new TreeView.with_model(unit_model);
 104                 job_view = new TreeView.with_model(job_model);
 105
 106                 unit_view.cursor_changed += unit_changed;
 107                 job_view.cursor_changed += job_changed;
 108
 109                 unit_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 0);
 110                 unit_view.insert_column_with_attributes(-1, "Description", new CellRendererText(), "text", 1);
 111                 unit_view.insert_column_with_attributes(-1, "Load State", new CellRendererText(), "text", 2);
 112                 unit_view.insert_column_with_attributes(-1, "Active State", new CellRendererText(), "text", 3);
 113                 unit_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 4);
 114
 115                 job_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 0);
 116                 job_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 1);
 117                 job_view.insert_column_with_attributes(-1, "Type", new CellRendererText(), "text", 2);
 118                 job_view.insert_column_with_attributes(-1, "State", new CellRendererText(), "text", 3);
 119
 120                 ScrolledWindow scroll = new ScrolledWindow(null, null);
 121                 scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
 122                 scroll.set_shadow_type(ShadowType.IN);
 123                 scroll.add(unit_view);
 124                 unit_vbox.pack_start(scroll, true, true, 0);
 125
 126                 scroll = new ScrolledWindow(null, null);
 127                 scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
 128                 scroll.set_shadow_type(ShadowType.IN);
 129                 scroll.add(job_view);
 130                 job_vbox.pack_start(scroll, true, true, 0);
 131
 132                 unit_id_label = new RightLabel();
 133                 unit_description_label = new RightLabel();
 134                 unit_load_state_label = new RightLabel();
 135                 unit_active_state_label = new RightLabel();
 136                 unit_load_path_label = new RightLabel();
 137                 unit_active_enter_timestamp_label = new RightLabel();
 138                 unit_active_exit_timestamp_label = new RightLabel();
 139                 unit_can_start_label = new RightLabel();
 140                 unit_can_reload_label = new RightLabel();
 141
 142                 job_id_label = new RightLabel();
 143                 job_state_label = new RightLabel();
 144                 job_type_label = new RightLabel();
 145
 146                 Table unit_table = new Table(9, 2, false);
 147                 unit_table.set_row_spacings(6);
 148                 unit_table.set_border_width(12);
 149                 unit_vbox.pack_start(unit_table, false, true, 0);
 150
 151                 Table job_table = new Table(2, 2, false);
 152                 job_table.set_row_spacings(6);
 153                 job_table.set_border_width(12);
 154                 job_vbox.pack_start(job_table, false, true, 0);
 155
 156                 unit_table.attach(new LeftLabel("Id:"), 0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 157                 unit_table.attach(unit_id_label, 1, 2, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 158                 unit_table.attach(new LeftLabel("Description:"), 0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 159                 unit_table.attach(unit_description_label, 1, 2, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 160                 unit_table.attach(new LeftLabel("Load State:"), 0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 161                 unit_table.attach(unit_load_state_label, 1, 2, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 162                 unit_table.attach(new LeftLabel("Active State:"), 0, 1, 3, 4, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 163                 unit_table.attach(unit_active_state_label, 1, 2, 3, 4, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 164                 unit_table.attach(new LeftLabel("Load Path:"), 0, 1, 4, 5, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 165                 unit_table.attach(unit_load_path_label, 1, 2, 4, 5, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 166                 unit_table.attach(new LeftLabel("Active Enter Timestamp:"), 0, 1, 5, 6, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 167                 unit_table.attach(unit_active_enter_timestamp_label, 1, 2, 5, 6, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 168                 unit_table.attach(new LeftLabel("Active Exit Timestamp:"), 0, 1, 6, 7, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 169                 unit_table.attach(unit_active_exit_timestamp_label, 1, 2, 6, 7, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 170                 unit_table.attach(new LeftLabel("Can Start/Stop:"), 0, 1, 7, 8, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 171                 unit_table.attach(unit_can_start_label, 1, 2, 7, 8, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 172                 unit_table.attach(new LeftLabel("Can Reload:"), 0, 1, 8, 9, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 173                 unit_table.attach(unit_can_reload_label, 1, 2, 8, 9, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 174
 175                 job_table.attach(new LeftLabel("Id:"), 0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 176                 job_table.attach(job_id_label, 1, 2, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 177                 job_table.attach(new LeftLabel("State:"), 0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 178                 job_table.attach(job_state_label, 1, 2, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 179                 job_table.attach(new LeftLabel("Type:"), 0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 180                 job_table.attach(job_type_label, 1, 2, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 181
 182                 ButtonBox bbox = new HButtonBox();
 183                 bbox.set_layout(ButtonBoxStyle.START);
 184                 bbox.set_spacing(6);
 185                 unit_vbox.pack_start(bbox, false, true, 0);
 186
 187                 start_button = new Button.with_mnemonic("_Start");
 188                 stop_button = new Button.with_mnemonic("Sto_p");
 189                 reload_button = new Button.with_mnemonic("_Reload");
 190                 restart_button = new Button.with_mnemonic("Res_tart");
 191
 192                 start_button.clicked += on_start;
 193                 stop_button.clicked += on_stop;
 194                 reload_button.clicked += on_reload;
 195                 restart_button.clicked += on_restart;
 196
 197                 bbox.pack_start(start_button, false, true, 0);
 198                 bbox.pack_start(stop_button, false, true, 0);
 199                 bbox.pack_start(restart_button, false, true, 0);
 200                 bbox.pack_start(reload_button, false, true, 0);
 201
 202                 bbox = new HButtonBox();
 203                 bbox.set_layout(ButtonBoxStyle.START);
 204                 bbox.set_spacing(6);
 205                 job_vbox.pack_start(bbox, false, true, 0);
 206
 207                 cancel_button = new Button.with_mnemonic("_Cancel");
 208
 209                 cancel_button.clicked += on_cancel;
 210
 211                 bbox.pack_start(cancel_button, false, true, 0);
 212
 213                 bus = Bus.get(BusType.SESSION);
 214
 215                 manager = bus.get_object(
 216                                 "org.freedesktop.systemd1",
 217                                 "/org/freedesktop/systemd1",
 218                                 "org.freedesktop.systemd1") as Manager;
 219
 220                 manager.unit_new += on_unit_new;
 221                 manager.job_new += on_job_new;
 222                 manager.unit_removed += on_unit_removed;
 223                 manager.job_removed += on_job_removed;
 224
 225                 manager.subscribe();
 226
 227                 clear_unit();
 228                 populate_unit_model();
 229                 populate_job_model();
 230         }
 231
 232         public void populate_unit_model() throws DBus.Error {
 233                 unit_model.clear();
 234
 235                 var list = manager.list_units();
 236
 237                 foreach (var i in list) {
 238                         TreeIter iter;
 239
 240                         Unit u = bus.get_object(
 241                                         "org.freedesktop.systemd1",
 242                                         i.unit_path,
 243                                         "org.freedesktop.systemd1.Unit") as Unit;
 244
 245                         unit_model.append(out iter);
 246                         unit_model.set(iter,
 247                                        0, i.id,
 248                                        1, i.description,
 249                                        2, i.load_state,
 250                                        3, i.active_state,
 251                                        4, i.job_type != "" ? "→ %s".printf(i.job_type) : "",
 252                                        5, u);
 253                 }
 254         }
 255
 256         public void populate_job_model() throws DBus.Error {
 257                 job_model.clear();
 258
 259                 var list = manager.list_jobs();
 260
 261                 foreach (var i in list) {
 262                         TreeIter iter;
 263
 264                         Job j = bus.get_object(
 265                                         "org.freedesktop.systemd1",
 266                                         i.job_path,
 267                                         "org.freedesktop.systemd1.Job") as Job;
 268
 269                         job_model.append(out iter);
 270                         job_model.set(iter,
 271                                       0, "%u".printf(i.id),
 272                                       1, i.name,
 273                                       2, "→ %s".printf(i.type),
 274                                       3, i.state,
 275                                       4, j);
 276                 }
 277         }
 278
 279         public Unit? get_current_unit() {
 280                 TreePath p;
 281                 unit_view.get_cursor(out p, null);
 282
 283                 if (p == null)
 284                         return null;
 285
 286                 TreeIter iter;
 287                 Unit u;
 288
 289                 unit_model.get_iter(out iter, p);
 290                 unit_model.get(iter, 5, out u);
 291
 292                 return u;
 293         }
 294
 295         public void unit_changed() {
 296                 Unit u = get_current_unit();
 297
 298                 if (u == null)
 299                         clear_unit();
 300                 else
 301                         show_unit(u);
 302         }
 303
 304         public void clear_unit() {
 305                 start_button.set_sensitive(false);
 306                 stop_button.set_sensitive(false);
 307                 reload_button.set_sensitive(false);
 308                 restart_button.set_sensitive(false);
 309
 310                 unit_id_label.set_text_or_na();
 311                 unit_description_label.set_text_or_na();
 312                 unit_load_state_label.set_text_or_na();
 313                 unit_active_state_label.set_text_or_na();
 314                 unit_load_path_label.set_text_or_na();
 315                 unit_active_enter_timestamp_label.set_text_or_na();
 316                 unit_active_exit_timestamp_label.set_text_or_na();
 317                 unit_can_reload_label.set_text_or_na();
 318                 unit_can_start_label.set_text_or_na();
 319         }
 320
 321         public void show_unit(Unit unit) {
 322                 unit_id_label.set_text_or_na(unit.id);
 323                 unit_description_label.set_text_or_na(unit.description);
 324                 unit_load_state_label.set_text_or_na(unit.load_state);
 325                 unit_active_state_label.set_text_or_na(unit.active_state);
 326                 unit_load_path_label.set_text_or_na(unit.load_path);
 327
 328                 uint64 t = unit.active_enter_timestamp;
 329                 if (t > 0) {
 330                         TimeVal tv = { (long) (t / 1000000), (long) (t % 1000000) };
 331                         unit_active_enter_timestamp_label.set_text_or_na(tv.to_iso8601());
 332                 } else
 333                         unit_active_enter_timestamp_label.set_text_or_na();
 334
 335                 t = unit.active_exit_timestamp;
 336                 if (t > 0) {
 337                         TimeVal tv = { (long) (t / 1000000), (long) (t % 1000000) };
 338                         unit_active_exit_timestamp_label.set_text_or_na(tv.to_iso8601());
 339                 } else
 340                         unit_active_exit_timestamp_label.set_text_or_na();
 341
 342                 bool b = unit.can_start;
 343                 start_button.set_sensitive(b);
 344                 stop_button.set_sensitive(b);
 345                 restart_button.set_sensitive(b);
 346                 unit_can_start_label.set_text_or_na(b ? "Yes" : "No");
 347
 348                 b = unit.can_reload;
 349                 reload_button.set_sensitive(b);
 350                 unit_can_reload_label.set_text_or_na(b ? "Yes" : "No");
 351         }
 352
 353         public Job? get_current_job() {
 354                 TreePath p;
 355                 job_view.get_cursor(out p, null);
 356
 357                 if (p == null)
 358                         return null;
 359
 360                 TreeIter iter;
 361                 Job *j;
 362
 363                 job_model.get_iter(out iter, p);
 364                 job_model.get(iter, 4, out j);
 365
 366                 return j;
 367         }
 368
 369         public void job_changed() {
 370                 Job j = get_current_job();
 371
 372                 if (j == null)
 373                         clear_job();
 374                 else
 375                         show_job(j);
 376         }
 377
 378         public void clear_job() {
 379                 job_id_label.set_text_or_na();
 380                 job_state_label.set_text_or_na();
 381                 job_type_label.set_text_or_na();
 382         }
 383
 384         public void show_job(Job job) {
 385                 job_id_label.set_text_or_na("%u".printf(job.id));
 386                 job_state_label.set_text_or_na(job.state);
 387                 job_type_label.set_text_or_na(job.job_type);
 388         }
 389
 390         public void on_start() {
 391                 Unit u = get_current_unit();
 392
 393                 if (u == null)
 394                         return;
 395
 396                 try {
 397                         u.start("replace");
 398                 } catch (DBus.Error e) {
 399                         message("%s", e.message);
 400                 }
 401         }
 402
 403         public void on_stop() {
 404                 Unit u = get_current_unit();
 405
 406                 if (u == null)
 407                         return;
 408
 409                 try {
 410                         u.stop("replace");
 411                 } catch (DBus.Error e) {
 412                         message("%s", e.message);
 413                 }
 414         }
 415
 416         public void on_reload() {
 417                 Unit u = get_current_unit();
 418
 419                 if (u == null)
 420                         return;
 421
 422                 try {
 423                         u.reload("replace");
 424                 } catch (DBus.Error e) {
 425                         message("%s", e.message);
 426                 }
 427         }
 428
 429         public void on_restart() {
 430                 Unit u = get_current_unit();
 431
 432                 if (u == null)
 433                         return;
 434
 435                 try {
 436                         u.restart("replace");
 437                 } catch (DBus.Error e) {
 438                         message("%s", e.message);
 439                 }
 440         }
 441
 442         public void on_cancel() {
 443                 Job j = get_current_job();
 444
 445                 if (j == null)
 446                         return;
 447
 448                 try {
 449                         j.cancel();
 450                 } catch (DBus.Error e) {
 451                         message("%s", e.message);
 452                 }
 453         }
 454
 455         public void on_unit_new(string id, ObjectPath path) {
 456                 stderr.printf("new path %s", path);
 457
 458                 Unit u = bus.get_object(
 459                                 "org.freedesktop.systemd1",
 460                                 path,
 461                                 "org.freedesktop.systemd1.Unit") as Unit;
 462
 463                 string t = "";
 464                 Unit.JobLink jl = u.job;
 465
 466                 if (jl.id != 0) {
 467                         Job j = bus.get_object(
 468                                         "org.freedesktop.systemd1",
 469                                         jl.path,
 470                                         "org.freedesktop.systemd1.Job") as Job;
 471
 472                         t = j.job_type;
 473                 }
 474
 475                 TreeIter iter;
 476                 unit_model.append(out iter);
 477                 unit_model.set(iter,
 478                                0, u.id,
 479                                1, u.description,
 480                                2, u.load_state,
 481                                3, u.active_state,
 482                                4, t != "" ? "→ %s".printf(t) : "",
 483                                5, u);
 484         }
 485
 486         public void on_job_new(uint32 id, ObjectPath path) {
 487                 stderr.printf("new path %s", path);
 488
 489                 Job j = bus.get_object(
 490                                 "org.freedesktop.systemd1",
 491                                 path,
 492                                 "org.freedesktop.systemd1.Job") as Job;
 493
 494                 TreeIter iter;
 495                 job_model.append(out iter);
 496                 job_model.set(iter,
 497                               0, "%u".printf(j.id),
 498                               1, j.unit.id,
 499                               2, "→ %s".printf(j.job_type),
 500                               3, j.state,
 501                               4, j);
 502         }
 503
 504         public void on_unit_removed(string id, ObjectPath path) {
 505                 stdout.printf("Unit %s removed.\n", id);
 506
 507                 /* FIXME */
 508         }
 509
 510         public void on_job_removed(uint32 id, ObjectPath path) {
 511                 stdout.printf("Job %u removed.\n", id);
 512
 513                 /* FIXME */
 514         }
 515 }
 516
 517 int main (string[] args) {
 518         Gtk.init(ref args);
 519
 520         try {
 521                 MainWindow window = new MainWindow();
 522                 window.show_all();
 523         } catch (DBus.Error e) {
 524                 message("%s", e.message);
 525         }
 526
 527         Gtk.main();
 528         return 0;
 529 }