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
 188     // Policy Manager does not know this app was killed,
 189     // so notify it by deactivate request.
 190     g_afb_instance->wmgr.api_deactivate_surface(
 191         ctxt->name.c_str(), ctxt->role.c_str(),
 192         [](const char *errmsg) {
 193             if (errmsg != nullptr)
 194             {
 195                 HMI_ERROR("wm", errmsg);
 196                 return;
 197             }
 198         });
 199
 200     g_afb_instance->wmgr.removeClient(ctxt->name);
 201     delete ctxt;
 202 }
 203
 204 static void createSecurityContext(afb_req req, const char* appid, const char* role)
 205 {
 206     WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 207     if (!ctxt)
 208     {
 209         // Create Security Context at first time
 210         const char *new_role = g_afb_instance->wmgr.convertRoleOldToNew(role);
 211         WMClientCtxt *ctxt = new WMClientCtxt(appid, new_role);
 212         HMI_DEBUG("wm", "create session for %s", ctxt->name.c_str());
 213         afb_req_session_set_LOA(req, 1);
 214         afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 215     }
 216 }
 217
 218 void windowmanager_requestsurface(afb_req req) noexcept
 219 {
 220     std::lock_guard<std::mutex> guard(binding_m);
 221 #ifdef ST
 222     ST();
 223 #endif
 224     if (g_afb_instance == nullptr)
 225     {
 226         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 227         return;
 228     }
 229
 230     try
 231     {
 232         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 233         if (!a_drawing_name)
 234         {
 235             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 236             return;
 237         }
 238
 239         char *appid = afb_req_get_application_id(req);
 240         if(appid)
 241         {
 242             auto ret = g_afb_instance->wmgr.api_request_surface(
 243                 appid, a_drawing_name);
 244             if (ret.is_err())
 245             {
 246                 afb_req_fail(req, "failed", ret.unwrap_err());
 247             }
 248             else
 249             {
 250                 createSecurityContext(req, appid, a_drawing_name);
 251                 afb_req_success(req, json_object_new_int(ret.unwrap()), "success");
 252             }
 253             free(appid);
 254         }
 255         else
 256         {
 257             afb_req_fail(req, "failed", nullptr);
 258         }
 259     }
 260     catch (std::exception &e)
 261     {
 262         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurface: %s", e.what());
 263         return;
 264     }
 265 }
 266
 267 void windowmanager_requestsurfacexdg(afb_req req) noexcept
 268 {
 269     std::lock_guard<std::mutex> guard(binding_m);
 270 #ifdef ST
 271     ST();
 272 #endif
 273     if (g_afb_instance == nullptr)
 274     {
 275         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 276         return;
 277     }
 278
 279     try
 280     {
 281         json_object *jreq = afb_req_json(req);
 282
 283         json_object *j_drawing_name = nullptr;
 284         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 285         {
 286             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 287             return;
 288         }
 289         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 290
 291         json_object *j_ivi_id = nullptr;
 292         if (!json_object_object_get_ex(jreq, "ivi_id", &j_ivi_id))
 293         {
 294             afb_req_fail(req, "failed", "Need char const* argument ivi_id");
 295             return;
 296         }
 297         char const *a_ivi_id = json_object_get_string(j_ivi_id);
 298         char *appid = afb_req_get_application_id(req);
 299         if(appid)
 300         {
 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             }
 308             else
 309             {
 310                 createSecurityContext(req, appid, a_drawing_name);
 311                 afb_req_success(req, NULL, "success");
 312             }
 313             free(appid);
 314         }
 315     }
 316     catch (std::exception &e)
 317     {
 318         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 319         return;
 320     }
 321 }
 322
 323 void windowmanager_activatewindow(afb_req req) noexcept
 324 {
 325     std::lock_guard<std::mutex> guard(binding_m);
 326 #ifdef ST
 327     ST();
 328 #endif
 329     if (g_afb_instance == nullptr)
 330     {
 331         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 332         return;
 333     }
 334
 335     try
 336     {
 337         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 338         if (!a_drawing_name)
 339         {
 340             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 341             return;
 342         }
 343
 344         const char *a_drawing_area = afb_req_value(req, "drawing_area");
 345         if (!a_drawing_area)
 346         {
 347             afb_req_fail(req, "failed", "Need char const* argument drawing_area");
 348             return;
 349         }
 350
 351         char* appid = afb_req_get_application_id(req);
 352         if(appid)
 353         {
 354             g_afb_instance->wmgr.api_activate_surface(
 355                 appid, a_drawing_name, a_drawing_area,
 356                 [&req](const char *errmsg) {
 357                     if (errmsg != nullptr)
 358                     {
 359                         HMI_ERROR("wm", errmsg);
 360                         afb_req_fail(req, "failed", errmsg);
 361                         return;
 362                     }
 363                     afb_req_success(req, NULL, "success");
 364                 });
 365             free(appid);
 366         }
 367     }
 368     catch (std::exception &e)
 369     {
 370         HMI_WARNING("wm", "failed: Uncaught exception while calling activatesurface: %s", e.what());
 371         g_afb_instance->wmgr.exceptionProcessForTransition();
 372         return;
 373     }
 374 }
 375
 376 void windowmanager_deactivatewindow(afb_req req) noexcept
 377 {
 378     std::lock_guard<std::mutex> guard(binding_m);
 379 #ifdef ST
 380     ST();
 381 #endif
 382     if (g_afb_instance == nullptr)
 383     {
 384         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 385         return;
 386     }
 387
 388     try
 389     {
 390         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 391         if (!a_drawing_name)
 392         {
 393             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 394             return;
 395         }
 396
 397         char* appid = afb_req_get_application_id(req);
 398         if(appid)
 399         {
 400             g_afb_instance->wmgr.api_deactivate_surface(
 401                 appid, a_drawing_name,
 402                 [&req](const char *errmsg) {
 403                     if (errmsg != nullptr)
 404                     {
 405                         HMI_ERROR("wm", errmsg);
 406                         afb_req_fail(req, "failed", errmsg);
 407                         return;
 408                     }
 409                     afb_req_success(req, NULL, "success");
 410                 });
 411             free(appid);
 412         }
 413     }
 414     catch (std::exception &e)
 415     {
 416         HMI_WARNING("wm", "failed: Uncaught exception while calling deactivatesurface: %s", e.what());
 417         g_afb_instance->wmgr.exceptionProcessForTransition();
 418         return;
 419     }
 420 }
 421
 422 void windowmanager_enddraw(afb_req req) noexcept
 423 {
 424     std::lock_guard<std::mutex> guard(binding_m);
 425 #ifdef ST
 426     ST();
 427 #endif
 428     if (g_afb_instance == nullptr)
 429     {
 430         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 431         return;
 432     }
 433
 434     try
 435     {
 436         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 437         if (!a_drawing_name)
 438         {
 439             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 440             return;
 441         }
 442         afb_req_success(req, NULL, "success");
 443
 444         char* appid = afb_req_get_application_id(req);
 445         if(appid)
 446         {
 447             g_afb_instance->wmgr.api_enddraw(appid, a_drawing_name);
 448             free(appid);
 449         }
 450     }
 451     catch (std::exception &e)
 452     {
 453         HMI_WARNING("wm", "failed: Uncaught exception while calling enddraw: %s", e.what());
 454         g_afb_instance->wmgr.exceptionProcessForTransition();
 455         return;
 456     }
 457 }
 458
 459 void windowmanager_getdisplayinfo_thunk(afb_req req) noexcept
 460 {
 461     std::lock_guard<std::mutex> guard(binding_m);
 462 #ifdef ST
 463     ST();
 464 #endif
 465     if (g_afb_instance == nullptr)
 466     {
 467         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 468         return;
 469     }
 470
 471     try
 472     {
 473         auto ret = g_afb_instance->wmgr.api_get_display_info();
 474         if (ret.is_err())
 475         {
 476             afb_req_fail(req, "failed", ret.unwrap_err());
 477             return;
 478         }
 479
 480         afb_req_success(req, ret.unwrap(), "success");
 481     }
 482     catch (std::exception &e)
 483     {
 484         afb_req_fail_f(req, "failed", "Uncaught exception while calling getdisplayinfo: %s", e.what());
 485         return;
 486     }
 487 }
 488
 489 void windowmanager_getareainfo_thunk(afb_req req) noexcept
 490 {
 491     std::lock_guard<std::mutex> guard(binding_m);
 492 #ifdef ST
 493     ST();
 494 #endif
 495     if (g_afb_instance == nullptr)
 496     {
 497         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 498         return;
 499     }
 500
 501     try
 502     {
 503         json_object *jreq = afb_req_json(req);
 504
 505         json_object *j_drawing_name = nullptr;
 506         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 507         {
 508             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 509             return;
 510         }
 511         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 512
 513         auto ret = g_afb_instance->wmgr.api_get_area_info(a_drawing_name);
 514         if (ret.is_err())
 515         {
 516             afb_req_fail(req, "failed", ret.unwrap_err());
 517             return;
 518         }
 519
 520         afb_req_success(req, ret.unwrap(), "success");
 521     }
 522     catch (std::exception &e)
 523     {
 524         afb_req_fail_f(req, "failed", "Uncaught exception while calling getareainfo: %s", e.what());
 525         return;
 526     }
 527 }
 528
 529 void windowmanager_wm_subscribe(afb_req req) noexcept
 530 {
 531     std::lock_guard<std::mutex> guard(binding_m);
 532 #ifdef ST
 533     ST();
 534 #endif
 535     if (g_afb_instance == nullptr)
 536     {
 537         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 538         return;
 539     }
 540
 541     try
 542     {
 543         json_object *jreq = afb_req_json(req);
 544         json_object *j = nullptr;
 545         if (!json_object_object_get_ex(jreq, "event", &j))
 546         {
 547             afb_req_fail(req, "failed", "Need char const* argument event");
 548             return;
 549         }
 550         int event_type = json_object_get_int(j);
 551         const char *event_name = g_afb_instance->wmgr.kListEventName[event_type];
 552         struct afb_event event = g_afb_instance->wmgr.map_afb_event[event_name];
 553         int ret = afb_req_subscribe(req, event);
 554         if (ret)
 555         {
 556             afb_req_fail(req, "failed", "Error: afb_req_subscribe()");
 557             return;
 558         }
 559         afb_req_success(req, NULL, "success");
 560     }
 561     catch (std::exception &e)
 562     {
 563         afb_req_fail_f(req, "failed", "Uncaught exception while calling wm_subscribe: %s", e.what());
 564         return;
 565     }
 566 }
 567
 568 void windowmanager_list_drawing_names(afb_req req) noexcept
 569 {
 570     std::lock_guard<std::mutex> guard(binding_m);
 571 #ifdef ST
 572     ST();
 573 #endif
 574     if (g_afb_instance == nullptr)
 575     {
 576         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 577         return;
 578     }
 579
 580     try
 581     {
 582
 583         nlohmann::json j = g_afb_instance->wmgr.id_alloc.name2id;
 584         auto ret = wm::Ok(json_tokener_parse(j.dump().c_str()));
 585         if (ret.is_err())
 586         {
 587             afb_req_fail(req, "failed", ret.unwrap_err());
 588             return;
 589         }
 590
 591         afb_req_success(req, ret.unwrap(), "success");
 592     }
 593     catch (std::exception &e)
 594     {
 595         afb_req_fail_f(req, "failed", "Uncaught exception while calling list_drawing_names: %s", e.what());
 596         return;
 597     }
 598 }
 599
 600 void windowmanager_ping(afb_req req) noexcept
 601 {
 602     std::lock_guard<std::mutex> guard(binding_m);
 603 #ifdef ST
 604     ST();
 605 #endif
 606     if (g_afb_instance == nullptr)
 607     {
 608         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 609         return;
 610     }
 611
 612     try
 613     {
 614
 615         g_afb_instance->wmgr.api_ping();
 616
 617         afb_req_success(req, NULL, "success");
 618     }
 619     catch (std::exception &e)
 620     {
 621         afb_req_fail_f(req, "failed", "Uncaught exception while calling ping: %s", e.what());
 622         return;
 623     }
 624 }
 625
 626 void windowmanager_debug_status(afb_req req) noexcept
 627 {
 628     std::lock_guard<std::mutex> guard(binding_m);
 629 #ifdef ST
 630     ST();
 631 #endif
 632     if (g_afb_instance == nullptr)
 633     {
 634         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 635         return;
 636     }
 637
 638     try
 639     {
 640
 641         json_object *jr = json_object_new_object();
 642         json_object_object_add(jr, "surfaces",
 643                                to_json(g_afb_instance->wmgr.controller->sprops));
 644         json_object_object_add(jr, "layers", to_json(g_afb_instance->wmgr.controller->lprops));
 645
 646         afb_req_success(req, jr, "success");
 647     }
 648     catch (std::exception &e)
 649     {
 650         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_status: %s", e.what());
 651         return;
 652     }
 653 }
 654
 655 void windowmanager_debug_layers(afb_req req) noexcept
 656 {
 657     std::lock_guard<std::mutex> guard(binding_m);
 658 #ifdef ST
 659     ST();
 660 #endif
 661     if (g_afb_instance == nullptr)
 662     {
 663         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 664         return;
 665     }
 666
 667     try
 668     {
 669         auto ret = wm::Ok(json_tokener_parse(g_afb_instance->wmgr.layers.to_json().dump().c_str()));
 670
 671         afb_req_success(req, ret, "success");
 672     }
 673     catch (std::exception &e)
 674     {
 675         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_layers: %s", e.what());
 676         return;
 677     }
 678 }
 679
 680 void windowmanager_debug_surfaces(afb_req req) noexcept
 681 {
 682     std::lock_guard<std::mutex> guard(binding_m);
 683 #ifdef ST
 684     ST();
 685 #endif
 686     if (g_afb_instance == nullptr)
 687     {
 688         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 689         return;
 690     }
 691
 692     try
 693     {
 694
 695         auto ret = wm::Ok(to_json(g_afb_instance->wmgr.controller->sprops));
 696         if (ret.is_err())
 697         {
 698             afb_req_fail(req, "failed", ret.unwrap_err());
 699             return;
 700         }
 701
 702         afb_req_success(req, ret.unwrap(), "success");
 703     }
 704     catch (std::exception &e)
 705     {
 706         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_surfaces: %s", e.what());
 707         return;
 708     }
 709 }
 710
 711 void windowmanager_debug_terminate(afb_req req) noexcept
 712 {
 713     std::lock_guard<std::mutex> guard(binding_m);
 714 #ifdef ST
 715     ST();
 716 #endif
 717     if (g_afb_instance == nullptr)
 718     {
 719         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 720         return;
 721     }
 722
 723     try
 724     {
 725
 726         if (getenv("WINMAN_DEBUG_TERMINATE") != nullptr)
 727         {
 728             raise(SIGKILL); // afb-daemon kills it's pgroup using TERM, which
 729                             // doesn't play well with perf
 730         }
 731
 732         afb_req_success(req, NULL, "success");
 733     }
 734     catch (std::exception &e)
 735     {
 736         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_terminate: %s", e.what());
 737         return;
 738     }
 739 }
 740
 741 const struct afb_verb_v2 windowmanager_verbs[] = {
 742     {"requestsurface", windowmanager_requestsurface, nullptr, nullptr, AFB_SESSION_NONE},
 743     {"requestsurfacexdg", windowmanager_requestsurfacexdg, nullptr, nullptr, AFB_SESSION_NONE},
 744     {"activatewindow", windowmanager_activatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 745     {"deactivatewindow", windowmanager_deactivatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 746     {"enddraw", windowmanager_enddraw, nullptr, nullptr, AFB_SESSION_NONE},
 747     {"getdisplayinfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 748     {"getareainfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 749     {"wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE},
 750     {"list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE},
 751     {"ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE},
 752     {"debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE},
 753     {"debug_layers", windowmanager_debug_layers, nullptr, nullptr, AFB_SESSION_NONE},
 754     {"debug_surfaces", windowmanager_debug_surfaces, nullptr, nullptr, AFB_SESSION_NONE},
 755     {"debug_terminate", windowmanager_debug_terminate, nullptr, nullptr, AFB_SESSION_NONE},
 756     {}};
 757
 758 extern "C" const struct afb_binding_v2 afbBindingV2 = {
 759     "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};