src/main.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <unistd.h>
  18 #include <algorithm>
  19 #include <mutex>
  20 #include <json.h>
  21 #include "../include/json.hpp"
  22 #include "window_manager.hpp"
  23 #include "json_helper.hpp"
  24 #include "wayland_ivi_wm.hpp"
  25
  26 extern "C"
  27 {
  28 #include <afb/afb-binding.h>
  29 #include <systemd/sd-event.h>
  30 }
  31
  32 typedef struct WMClientCtxt
  33 {
  34     std::string name;
  35     std::string role;
  36     WMClientCtxt(const char *appName, const char* appRole)
  37     {
  38         name = appName;
  39         role = appRole;
  40     }
  41 } WMClientCtxt;
  42
  43 struct afb_instance
  44 {
  45     std::unique_ptr<wl::display> display;
  46     wm::WindowManager wmgr;
  47
  48     afb_instance() : display{new wl::display}, wmgr{this->display.get()} {}
  49
  50     int init();
  51 };
  52
  53 struct afb_instance *g_afb_instance;
  54 std::mutex binding_m;
  55
  56 int afb_instance::init()
  57 {
  58     return this->wmgr.init();
  59 }
  60
  61 int display_event_callback(sd_event_source *evs, int /*fd*/, uint32_t events,
  62                            void * /*data*/)
  63 {
  64     ST();
  65
  66     if ((events & EPOLLHUP) != 0)
  67     {
  68         HMI_ERROR("wm", "The compositor hung up, dying now.");
  69         delete g_afb_instance;
  70         g_afb_instance = nullptr;
  71         goto error;
  72     }
  73
  74     if ((events & EPOLLIN) != 0u)
  75     {
  76         {
  77             STN(display_read_events);
  78             g_afb_instance->wmgr.display->read_events();
  79             g_afb_instance->wmgr.set_pending_events();
  80         }
  81         {
  82             // We want do dispatch pending wayland events from within
  83             // the API context
  84             STN(winman_ping_api_call);
  85             afb_service_call("windowmanager", "ping", json_object_new_object(),
  86                             [](void *c, int st, json_object *j) {
  87                                 STN(winman_ping_api_call_return);
  88                             },
  89                             nullptr);
  90         }
  91     }
  92
  93     return 0;
  94
  95 error:
  96     sd_event_source_unref(evs);
  97     if (getenv("WINMAN_EXIT_ON_HANGUP") != nullptr)
  98     {
  99         exit(1);
 100     }
 101     return -1;
 102 }
 103
 104 int _binding_init()
 105 {
 106     HMI_NOTICE("wm", "WinMan ver. %s", WINMAN_VERSION_STRING);
 107
 108     if (g_afb_instance != nullptr)
 109     {
 110         HMI_ERROR("wm", "Wayland context already initialized?");
 111         return 0;
 112     }
 113
 114     if (getenv("XDG_RUNTIME_DIR") == nullptr)
 115     {
 116         HMI_ERROR("wm", "Environment variable XDG_RUNTIME_DIR not set");
 117         goto error;
 118     }
 119
 120     {
 121         // wait until wayland compositor starts up.
 122         int cnt = 0;
 123         g_afb_instance = new afb_instance;
 124         while (!g_afb_instance->display->ok())
 125         {
 126             cnt++;
 127             if (20 <= cnt)
 128             {
 129                 HMI_ERROR("wm", "Could not connect to compositor");
 130                 goto error;
 131             }
 132             HMI_ERROR("wm", "Wait to start weston ...");
 133             sleep(1);
 134             delete g_afb_instance;
 135             g_afb_instance = new afb_instance;
 136         }
 137     }
 138
 139     if (g_afb_instance->init() == -1)
 140     {
 141         HMI_ERROR("wm", "Could not connect to compositor");
 142         goto error;
 143     }
 144
 145     {
 146         int ret = sd_event_add_io(afb_daemon_get_event_loop(), nullptr,
 147                                   g_afb_instance->display->get_fd(), EPOLLIN,
 148                                   display_event_callback, g_afb_instance);
 149         if (ret < 0)
 150         {
 151             HMI_ERROR("wm", "Could not initialize afb_instance event handler: %d", -ret);
 152             goto error;
 153         }
 154     }
 155
 156     atexit([] { delete g_afb_instance; });
 157
 158     return 0;
 159
 160 error:
 161     delete g_afb_instance;
 162     g_afb_instance = nullptr;
 163     return -1;
 164 }
 165
 166 int binding_init() noexcept
 167 {
 168     try
 169     {
 170         return _binding_init();
 171     }
 172     catch (std::exception &e)
 173     {
 174         HMI_ERROR("wm", "Uncaught exception in binding_init(): %s", e.what());
 175     }
 176     return -1;
 177 }
 178
 179 static void cbRemoveClientCtxt(void *data)
 180 {
 181     WMClientCtxt *ctxt = (WMClientCtxt *)data;
 182     if (ctxt == nullptr)
 183     {
 184         return;
 185     }
 186     HMI_DEBUG("wm", "remove app %s", ctxt->name.c_str());
 187     // Lookup surfaceID and remove it because App is dead.
 188     auto pSid = g_afb_instance->wmgr.id_alloc.lookup(ctxt->role.c_str());
 189     if (pSid)
 190     {
 191         auto sid = *pSid;
 192         auto o_state = *g_afb_instance->wmgr.layers.get_layout_state(sid);
 193         if (o_state != nullptr)
 194         {
 195             if (o_state->main == sid)
 196             {
 197                 o_state->main = -1;
 198             }
 199             else if (o_state->sub == sid)
 200             {
 201                 o_state->sub = -1;
 202             }
 203         }
 204         g_afb_instance->wmgr.id_alloc.remove_id(sid);
 205         g_afb_instance->wmgr.layers.remove_surface(sid);
 206         g_afb_instance->wmgr.controller->sprops.erase(sid);
 207         g_afb_instance->wmgr.controller->surfaces.erase(sid);
 208         HMI_DEBUG("wm", "delete surfaceID %d", sid);
 209     }
 210     g_afb_instance->wmgr.removeClient(ctxt->name);
 211     delete ctxt;
 212 }
 213
 214 static void createSecurityContext(afb_req req, const char* appid, const char* role)
 215 {
 216     WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 217     if (!ctxt)
 218     {
 219         // Create Security Context at first time
 220         const char *new_role = g_afb_instance->wmgr.convertRoleOldToNew(role);
 221         WMClientCtxt *ctxt = new WMClientCtxt(appid, new_role);
 222         HMI_DEBUG("wm", "create session for %s", ctxt->name.c_str());
 223         afb_req_session_set_LOA(req, 1);
 224         afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 225     }
 226 }
 227
 228 void windowmanager_requestsurface(afb_req req) noexcept
 229 {
 230     std::lock_guard<std::mutex> guard(binding_m);
 231 #ifdef ST
 232     ST();
 233 #endif
 234     if (g_afb_instance == nullptr)
 235     {
 236         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 237         return;
 238     }
 239
 240     try
 241     {
 242         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 243         if (!a_drawing_name)
 244         {
 245             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 246             return;
 247         }
 248
 249         const char *appid = afb_req_get_application_id(req);
 250         auto ret = g_afb_instance->wmgr.api_request_surface(
 251             appid, a_drawing_name);
 252         if (ret.is_err())
 253         {
 254             afb_req_fail(req, "failed", ret.unwrap_err());
 255             return;
 256         }
 257
 258         createSecurityContext(req, appid, a_drawing_name);
 259
 260         afb_req_success(req, json_object_new_int(ret.unwrap()), "success");
 261     }
 262     catch (std::exception &e)
 263     {
 264         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurface: %s", e.what());
 265         return;
 266     }
 267 }
 268
 269 void windowmanager_requestsurfacexdg(afb_req req) noexcept
 270 {
 271     std::lock_guard<std::mutex> guard(binding_m);
 272 #ifdef ST
 273     ST();
 274 #endif
 275     if (g_afb_instance == nullptr)
 276     {
 277         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 278         return;
 279     }
 280
 281     try
 282     {
 283         json_object *jreq = afb_req_json(req);
 284
 285         json_object *j_drawing_name = nullptr;
 286         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 287         {
 288             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 289             return;
 290         }
 291         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 292
 293         json_object *j_ivi_id = nullptr;
 294         if (!json_object_object_get_ex(jreq, "ivi_id", &j_ivi_id))
 295         {
 296             afb_req_fail(req, "failed", "Need char const* argument ivi_id");
 297             return;
 298         }
 299         char const *a_ivi_id = json_object_get_string(j_ivi_id);
 300         char const *appid = afb_req_get_application_id(req);
 301         auto ret = g_afb_instance->wmgr.api_request_surface(
 302             appid, a_drawing_name, a_ivi_id);
 303
 304         if (ret != nullptr)
 305         {
 306             afb_req_fail(req, "failed", ret);
 307             return;
 308         }
 309
 310         createSecurityContext(req, appid, a_drawing_name);
 311
 312         afb_req_success(req, NULL, "success");
 313     }
 314     catch (std::exception &e)
 315     {
 316         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 317         return;
 318     }
 319 }
 320
 321 void windowmanager_activatewindow(afb_req req) noexcept
 322 {
 323     std::lock_guard<std::mutex> guard(binding_m);
 324 #ifdef ST
 325     ST();
 326 #endif
 327     if (g_afb_instance == nullptr)
 328     {
 329         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 330         return;
 331     }
 332
 333     try
 334     {
 335         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 336         if (!a_drawing_name)
 337         {
 338             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 339             return;
 340         }
 341
 342         const char *a_drawing_area = afb_req_value(req, "drawing_area");
 343         if (!a_drawing_area)
 344         {
 345             afb_req_fail(req, "failed", "Need char const* argument drawing_area");
 346             return;
 347         }
 348
 349         g_afb_instance->wmgr.api_activate_surface(
 350             afb_req_get_application_id(req),
 351             a_drawing_name, a_drawing_area,
 352             [&req](const char *errmsg) {
 353                 if (errmsg != nullptr)
 354                 {
 355                     HMI_ERROR("wm", errmsg);
 356                     afb_req_fail(req, "failed", errmsg);
 357                     return;
 358                 }
 359                 afb_req_success(req, NULL, "success");
 360             });
 361     }
 362     catch (std::exception &e)
 363     {
 364         HMI_WARNING("wm", "failed: Uncaught exception while calling activatesurface: %s", e.what());
 365         g_afb_instance->wmgr.exceptionProcessForTransition();
 366         return;
 367     }
 368 }
 369
 370 void windowmanager_deactivatewindow(afb_req req) noexcept
 371 {
 372     std::lock_guard<std::mutex> guard(binding_m);
 373 #ifdef ST
 374     ST();
 375 #endif
 376     if (g_afb_instance == nullptr)
 377     {
 378         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 379         return;
 380     }
 381
 382     try
 383     {
 384         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 385         if (!a_drawing_name)
 386         {
 387             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 388             return;
 389         }
 390
 391         g_afb_instance->wmgr.api_deactivate_surface(
 392             afb_req_get_application_id(req), a_drawing_name,
 393             [&req](const char *errmsg) {
 394                 if (errmsg != nullptr)
 395                 {
 396                     HMI_ERROR("wm", errmsg);
 397                     afb_req_fail(req, "failed", errmsg);
 398                     return;
 399                 }
 400                 afb_req_success(req, NULL, "success");
 401             });
 402     }
 403     catch (std::exception &e)
 404     {
 405         HMI_WARNING("wm", "failed: Uncaught exception while calling deactivatesurface: %s", e.what());
 406         g_afb_instance->wmgr.exceptionProcessForTransition();
 407         return;
 408     }
 409 }
 410
 411 void windowmanager_enddraw(afb_req req) noexcept
 412 {
 413     std::lock_guard<std::mutex> guard(binding_m);
 414 #ifdef ST
 415     ST();
 416 #endif
 417     if (g_afb_instance == nullptr)
 418     {
 419         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 420         return;
 421     }
 422
 423     try
 424     {
 425         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 426         if (!a_drawing_name)
 427         {
 428             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 429             return;
 430         }
 431         afb_req_success(req, NULL, "success");
 432
 433         g_afb_instance->wmgr.api_enddraw(
 434             afb_req_get_application_id(req), a_drawing_name);
 435     }
 436     catch (std::exception &e)
 437     {
 438         HMI_WARNING("wm", "failed: Uncaught exception while calling enddraw: %s", e.what());
 439         g_afb_instance->wmgr.exceptionProcessForTransition();
 440         return;
 441     }
 442 }
 443
 444 void windowmanager_getdisplayinfo_thunk(afb_req req) noexcept
 445 {
 446     std::lock_guard<std::mutex> guard(binding_m);
 447 #ifdef ST
 448     ST();
 449 #endif
 450     if (g_afb_instance == nullptr)
 451     {
 452         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 453         return;
 454     }
 455
 456     try
 457     {
 458         auto ret = g_afb_instance->wmgr.api_get_display_info();
 459         if (ret.is_err())
 460         {
 461             afb_req_fail(req, "failed", ret.unwrap_err());
 462             return;
 463         }
 464
 465         afb_req_success(req, ret.unwrap(), "success");
 466     }
 467     catch (std::exception &e)
 468     {
 469         afb_req_fail_f(req, "failed", "Uncaught exception while calling getdisplayinfo: %s", e.what());
 470         return;
 471     }
 472 }
 473
 474 void windowmanager_getareainfo_thunk(afb_req req) noexcept
 475 {
 476     std::lock_guard<std::mutex> guard(binding_m);
 477 #ifdef ST
 478     ST();
 479 #endif
 480     if (g_afb_instance == nullptr)
 481     {
 482         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 483         return;
 484     }
 485
 486     try
 487     {
 488         json_object *jreq = afb_req_json(req);
 489
 490         json_object *j_drawing_name = nullptr;
 491         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 492         {
 493             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 494             return;
 495         }
 496         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 497
 498         auto ret = g_afb_instance->wmgr.api_get_area_info(a_drawing_name);
 499         if (ret.is_err())
 500         {
 501             afb_req_fail(req, "failed", ret.unwrap_err());
 502             return;
 503         }
 504
 505         afb_req_success(req, ret.unwrap(), "success");
 506     }
 507     catch (std::exception &e)
 508     {
 509         afb_req_fail_f(req, "failed", "Uncaught exception while calling getareainfo: %s", e.what());
 510         return;
 511     }
 512 }
 513
 514 void windowmanager_wm_subscribe(afb_req req) noexcept
 515 {
 516     std::lock_guard<std::mutex> guard(binding_m);
 517 #ifdef ST
 518     ST();
 519 #endif
 520     if (g_afb_instance == nullptr)
 521     {
 522         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 523         return;
 524     }
 525
 526     try
 527     {
 528         json_object *jreq = afb_req_json(req);
 529         json_object *j = nullptr;
 530         if (!json_object_object_get_ex(jreq, "event", &j))
 531         {
 532             afb_req_fail(req, "failed", "Need char const* argument event");
 533             return;
 534         }
 535         int event_type = json_object_get_int(j);
 536         const char *event_name = g_afb_instance->wmgr.kListEventName[event_type];
 537         struct afb_event event = g_afb_instance->wmgr.map_afb_event[event_name];
 538         int ret = afb_req_subscribe(req, event);
 539         if (ret)
 540         {
 541             afb_req_fail(req, "failed", "Error: afb_req_subscribe()");
 542             return;
 543         }
 544         afb_req_success(req, NULL, "success");
 545     }
 546     catch (std::exception &e)
 547     {
 548         afb_req_fail_f(req, "failed", "Uncaught exception while calling wm_subscribe: %s", e.what());
 549         return;
 550     }
 551 }
 552
 553 void windowmanager_list_drawing_names(afb_req req) noexcept
 554 {
 555     std::lock_guard<std::mutex> guard(binding_m);
 556 #ifdef ST
 557     ST();
 558 #endif
 559     if (g_afb_instance == nullptr)
 560     {
 561         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 562         return;
 563     }
 564
 565     try
 566     {
 567
 568         nlohmann::json j = g_afb_instance->wmgr.id_alloc.name2id;
 569         auto ret = wm::Ok(json_tokener_parse(j.dump().c_str()));
 570         if (ret.is_err())
 571         {
 572             afb_req_fail(req, "failed", ret.unwrap_err());
 573             return;
 574         }
 575
 576         afb_req_success(req, ret.unwrap(), "success");
 577     }
 578     catch (std::exception &e)
 579     {
 580         afb_req_fail_f(req, "failed", "Uncaught exception while calling list_drawing_names: %s", e.what());
 581         return;
 582     }
 583 }
 584
 585 void windowmanager_ping(afb_req req) noexcept
 586 {
 587     std::lock_guard<std::mutex> guard(binding_m);
 588 #ifdef ST
 589     ST();
 590 #endif
 591     if (g_afb_instance == nullptr)
 592     {
 593         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 594         return;
 595     }
 596
 597     try
 598     {
 599
 600         g_afb_instance->wmgr.api_ping();
 601
 602         afb_req_success(req, NULL, "success");
 603     }
 604     catch (std::exception &e)
 605     {
 606         afb_req_fail_f(req, "failed", "Uncaught exception while calling ping: %s", e.what());
 607         return;
 608     }
 609 }
 610
 611 void windowmanager_debug_status(afb_req req) noexcept
 612 {
 613     std::lock_guard<std::mutex> guard(binding_m);
 614 #ifdef ST
 615     ST();
 616 #endif
 617     if (g_afb_instance == nullptr)
 618     {
 619         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 620         return;
 621     }
 622
 623     try
 624     {
 625
 626         json_object *jr = json_object_new_object();
 627         json_object_object_add(jr, "surfaces",
 628                                to_json(g_afb_instance->wmgr.controller->sprops));
 629         json_object_object_add(jr, "layers", to_json(g_afb_instance->wmgr.controller->lprops));
 630
 631         afb_req_success(req, jr, "success");
 632     }
 633     catch (std::exception &e)
 634     {
 635         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_status: %s", e.what());
 636         return;
 637     }
 638 }
 639
 640 void windowmanager_debug_layers(afb_req req) noexcept
 641 {
 642     std::lock_guard<std::mutex> guard(binding_m);
 643 #ifdef ST
 644     ST();
 645 #endif
 646     if (g_afb_instance == nullptr)
 647     {
 648         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 649         return;
 650     }
 651
 652     try
 653     {
 654         auto ret = wm::Ok(json_tokener_parse(g_afb_instance->wmgr.layers.to_json().dump().c_str()));
 655
 656         afb_req_success(req, ret, "success");
 657     }
 658     catch (std::exception &e)
 659     {
 660         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_layers: %s", e.what());
 661         return;
 662     }
 663 }
 664
 665 void windowmanager_debug_surfaces(afb_req req) noexcept
 666 {
 667     std::lock_guard<std::mutex> guard(binding_m);
 668 #ifdef ST
 669     ST();
 670 #endif
 671     if (g_afb_instance == nullptr)
 672     {
 673         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 674         return;
 675     }
 676
 677     try
 678     {
 679
 680         auto ret = wm::Ok(to_json(g_afb_instance->wmgr.controller->sprops));
 681         if (ret.is_err())
 682         {
 683             afb_req_fail(req, "failed", ret.unwrap_err());
 684             return;
 685         }
 686
 687         afb_req_success(req, ret.unwrap(), "success");
 688     }
 689     catch (std::exception &e)
 690     {
 691         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_surfaces: %s", e.what());
 692         return;
 693     }
 694 }
 695
 696 void windowmanager_debug_terminate(afb_req req) noexcept
 697 {
 698     std::lock_guard<std::mutex> guard(binding_m);
 699 #ifdef ST
 700     ST();
 701 #endif
 702     if (g_afb_instance == nullptr)
 703     {
 704         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 705         return;
 706     }
 707
 708     try
 709     {
 710
 711         if (getenv("WINMAN_DEBUG_TERMINATE") != nullptr)
 712         {
 713             raise(SIGKILL); // afb-daemon kills it's pgroup using TERM, which
 714                             // doesn't play well with perf
 715         }
 716
 717         afb_req_success(req, NULL, "success");
 718     }
 719     catch (std::exception &e)
 720     {
 721         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_terminate: %s", e.what());
 722         return;
 723     }
 724 }
 725
 726 const struct afb_verb_v2 windowmanager_verbs[] = {
 727     {"requestsurface", windowmanager_requestsurface, nullptr, nullptr, AFB_SESSION_NONE},
 728     {"requestsurfacexdg", windowmanager_requestsurfacexdg, nullptr, nullptr, AFB_SESSION_NONE},
 729     {"activatewindow", windowmanager_activatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 730     {"deactivatewindow", windowmanager_deactivatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 731     {"enddraw", windowmanager_enddraw, nullptr, nullptr, AFB_SESSION_NONE},
 732     {"getdisplayinfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 733     {"getareainfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 734     {"wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE},
 735     {"list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE},
 736     {"ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE},
 737     {"debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE},
 738     {"debug_layers", windowmanager_debug_layers, nullptr, nullptr, AFB_SESSION_NONE},
 739     {"debug_surfaces", windowmanager_debug_surfaces, nullptr, nullptr, AFB_SESSION_NONE},
 740     {"debug_terminate", windowmanager_debug_terminate, nullptr, nullptr, AFB_SESSION_NONE},
 741     {}};
 742
 743 extern "C" const struct afb_binding_v2 afbBindingV2 = {
 744     "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};