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 bool checkFirstReq(afb_req req)
 180 {
 181     WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 182     return (ctxt) ? false : true;
 183 }
 184
 185 static void cbRemoveClientCtxt(void *data)
 186 {
 187     WMClientCtxt *ctxt = (WMClientCtxt *)data;
 188     if (ctxt == nullptr)
 189     {
 190         return;
 191     }
 192     HMI_DEBUG("wm", "remove app %s", ctxt->name.c_str());
 193     // Lookup surfaceID and remove it because App is dead.
 194     auto pSid = g_afb_instance->wmgr.id_alloc.lookup(ctxt->role.c_str());
 195     if (pSid)
 196     {
 197         auto sid = *pSid;
 198         auto o_state = *g_afb_instance->wmgr.layers.get_layout_state(sid);
 199         if (o_state != nullptr)
 200         {
 201             if (o_state->main == sid)
 202             {
 203                 o_state->main = -1;
 204             }
 205             else if (o_state->sub == sid)
 206             {
 207                 o_state->sub = -1;
 208             }
 209         }
 210         g_afb_instance->wmgr.id_alloc.remove_id(sid);
 211         g_afb_instance->wmgr.layers.remove_surface(sid);
 212         g_afb_instance->wmgr.controller->sprops.erase(sid);
 213         g_afb_instance->wmgr.controller->surfaces.erase(sid);
 214         HMI_DEBUG("wm", "delete surfaceID %d", sid);
 215     }
 216     g_afb_instance->wmgr.removeClient(ctxt->name);
 217     delete ctxt;
 218 }
 219
 220 void windowmanager_requestsurface(afb_req req) noexcept
 221 {
 222     std::lock_guard<std::mutex> guard(binding_m);
 223 #ifdef ST
 224     ST();
 225 #endif
 226     if (g_afb_instance == nullptr)
 227     {
 228         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 229         return;
 230     }
 231
 232     try
 233     {
 234         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 235         if (!a_drawing_name)
 236         {
 237             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 238             return;
 239         }
 240
 241         /* Create Security Context */
 242         bool isFirstReq = checkFirstReq(req);
 243         if (!isFirstReq)
 244         {
 245             WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 246             HMI_DEBUG("wm", "You're %s.", ctxt->name.c_str());
 247             if (ctxt->name != std::string(a_drawing_name))
 248             {
 249                 afb_req_fail_f(req, "failed", "Dont request with other name: %s for now", a_drawing_name);
 250                 HMI_DEBUG("wm", "Don't request with other name: %s for now", a_drawing_name);
 251                 return;
 252             }
 253         }
 254
 255         auto ret = g_afb_instance->wmgr.api_request_surface(
 256             afb_req_get_application_id(req), a_drawing_name);
 257
 258         if (isFirstReq)
 259         {
 260             WMClientCtxt *ctxt = new WMClientCtxt(afb_req_get_application_id(req), a_drawing_name);
 261             HMI_DEBUG("wm", "create session for %s", ctxt->name.c_str());
 262             afb_req_session_set_LOA(req, 1);
 263             afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 264         }
 265         else
 266         {
 267             HMI_DEBUG("wm", "session already created for %s", a_drawing_name);
 268         }
 269
 270         if (ret.is_err())
 271         {
 272             afb_req_fail(req, "failed", ret.unwrap_err());
 273             return;
 274         }
 275
 276         afb_req_success(req, json_object_new_int(ret.unwrap()), "success");
 277     }
 278     catch (std::exception &e)
 279     {
 280         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurface: %s", e.what());
 281         return;
 282     }
 283 }
 284
 285 void windowmanager_requestsurfacexdg(afb_req req) noexcept
 286 {
 287     std::lock_guard<std::mutex> guard(binding_m);
 288 #ifdef ST
 289     ST();
 290 #endif
 291     if (g_afb_instance == nullptr)
 292     {
 293         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 294         return;
 295     }
 296
 297     try
 298     {
 299         json_object *jreq = afb_req_json(req);
 300
 301         json_object *j_drawing_name = nullptr;
 302         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 303         {
 304             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 305             return;
 306         }
 307         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 308
 309         json_object *j_ivi_id = nullptr;
 310         if (!json_object_object_get_ex(jreq, "ivi_id", &j_ivi_id))
 311         {
 312             afb_req_fail(req, "failed", "Need char const* argument ivi_id");
 313             return;
 314         }
 315         char const *a_ivi_id = json_object_get_string(j_ivi_id);
 316
 317         auto ret = g_afb_instance->wmgr.api_request_surface(
 318             afb_req_get_application_id(req), a_drawing_name, a_ivi_id);
 319         if (ret != nullptr)
 320         {
 321             afb_req_fail(req, "failed", ret);
 322             return;
 323         }
 324
 325         afb_req_success(req, NULL, "success");
 326     }
 327     catch (std::exception &e)
 328     {
 329         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 330         return;
 331     }
 332 }
 333
 334 void windowmanager_activatewindow(afb_req req) noexcept
 335 {
 336     std::lock_guard<std::mutex> guard(binding_m);
 337 #ifdef ST
 338     ST();
 339 #endif
 340     if (g_afb_instance == nullptr)
 341     {
 342         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 343         return;
 344     }
 345
 346     try
 347     {
 348         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 349         if (!a_drawing_name)
 350         {
 351             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 352             return;
 353         }
 354
 355         const char *a_drawing_area = afb_req_value(req, "drawing_area");
 356         if (!a_drawing_area)
 357         {
 358             afb_req_fail(req, "failed", "Need char const* argument drawing_area");
 359             return;
 360         }
 361
 362         g_afb_instance->wmgr.api_activate_surface(
 363             afb_req_get_application_id(req),
 364             a_drawing_name, a_drawing_area,
 365             [&req](const char *errmsg) {
 366                 if (errmsg != nullptr)
 367                 {
 368                     HMI_ERROR("wm", errmsg);
 369                     afb_req_fail(req, "failed", errmsg);
 370                     return;
 371                 }
 372                 afb_req_success(req, NULL, "success");
 373             });
 374     }
 375     catch (std::exception &e)
 376     {
 377         HMI_WARNING("wm", "failed: Uncaught exception while calling activatesurface: %s", e.what());
 378         g_afb_instance->wmgr.exceptionProcessForTransition();
 379         return;
 380     }
 381 }
 382
 383 void windowmanager_deactivatewindow(afb_req req) noexcept
 384 {
 385     std::lock_guard<std::mutex> guard(binding_m);
 386 #ifdef ST
 387     ST();
 388 #endif
 389     if (g_afb_instance == nullptr)
 390     {
 391         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 392         return;
 393     }
 394
 395     try
 396     {
 397         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 398         if (!a_drawing_name)
 399         {
 400             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 401             return;
 402         }
 403
 404         g_afb_instance->wmgr.api_deactivate_surface(
 405             afb_req_get_application_id(req), a_drawing_name,
 406             [&req](const char *errmsg) {
 407                 if (errmsg != nullptr)
 408                 {
 409                     HMI_ERROR("wm", errmsg);
 410                     afb_req_fail(req, "failed", errmsg);
 411                     return;
 412                 }
 413                 afb_req_success(req, NULL, "success");
 414             });
 415     }
 416     catch (std::exception &e)
 417     {
 418         HMI_WARNING("wm", "failed: Uncaught exception while calling deactivatesurface: %s", e.what());
 419         g_afb_instance->wmgr.exceptionProcessForTransition();
 420         return;
 421     }
 422 }
 423
 424 void windowmanager_enddraw(afb_req req) noexcept
 425 {
 426     std::lock_guard<std::mutex> guard(binding_m);
 427 #ifdef ST
 428     ST();
 429 #endif
 430     if (g_afb_instance == nullptr)
 431     {
 432         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 433         return;
 434     }
 435
 436     try
 437     {
 438         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 439         if (!a_drawing_name)
 440         {
 441             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 442             return;
 443         }
 444         afb_req_success(req, NULL, "success");
 445
 446         g_afb_instance->wmgr.api_enddraw(
 447             afb_req_get_application_id(req), a_drawing_name);
 448     }
 449     catch (std::exception &e)
 450     {
 451         HMI_WARNING("wm", "failed: Uncaught exception while calling enddraw: %s", e.what());
 452         g_afb_instance->wmgr.exceptionProcessForTransition();
 453         return;
 454     }
 455 }
 456
 457 void windowmanager_getdisplayinfo_thunk(afb_req req) noexcept
 458 {
 459     std::lock_guard<std::mutex> guard(binding_m);
 460 #ifdef ST
 461     ST();
 462 #endif
 463     if (g_afb_instance == nullptr)
 464     {
 465         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 466         return;
 467     }
 468
 469     try
 470     {
 471         auto ret = g_afb_instance->wmgr.api_get_display_info();
 472         if (ret.is_err())
 473         {
 474             afb_req_fail(req, "failed", ret.unwrap_err());
 475             return;
 476         }
 477
 478         afb_req_success(req, ret.unwrap(), "success");
 479     }
 480     catch (std::exception &e)
 481     {
 482         afb_req_fail_f(req, "failed", "Uncaught exception while calling getdisplayinfo: %s", e.what());
 483         return;
 484     }
 485 }
 486
 487 void windowmanager_getareainfo_thunk(afb_req req) noexcept
 488 {
 489     std::lock_guard<std::mutex> guard(binding_m);
 490 #ifdef ST
 491     ST();
 492 #endif
 493     if (g_afb_instance == nullptr)
 494     {
 495         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 496         return;
 497     }
 498
 499     try
 500     {
 501         json_object *jreq = afb_req_json(req);
 502
 503         json_object *j_drawing_name = nullptr;
 504         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 505         {
 506             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 507             return;
 508         }
 509         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 510
 511         auto ret = g_afb_instance->wmgr.api_get_area_info(a_drawing_name);
 512         if (ret.is_err())
 513         {
 514             afb_req_fail(req, "failed", ret.unwrap_err());
 515             return;
 516         }
 517
 518         afb_req_success(req, ret.unwrap(), "success");
 519     }
 520     catch (std::exception &e)
 521     {
 522         afb_req_fail_f(req, "failed", "Uncaught exception while calling getareainfo: %s", e.what());
 523         return;
 524     }
 525 }
 526
 527 void windowmanager_wm_subscribe(afb_req req) noexcept
 528 {
 529     std::lock_guard<std::mutex> guard(binding_m);
 530 #ifdef ST
 531     ST();
 532 #endif
 533     if (g_afb_instance == nullptr)
 534     {
 535         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 536         return;
 537     }
 538
 539     try
 540     {
 541         json_object *jreq = afb_req_json(req);
 542         json_object *j = nullptr;
 543         if (!json_object_object_get_ex(jreq, "event", &j))
 544         {
 545             afb_req_fail(req, "failed", "Need char const* argument event");
 546             return;
 547         }
 548         int event_type = json_object_get_int(j);
 549         const char *event_name = g_afb_instance->wmgr.kListEventName[event_type];
 550         struct afb_event event = g_afb_instance->wmgr.map_afb_event[event_name];
 551         int ret = afb_req_subscribe(req, event);
 552         if (ret)
 553         {
 554             afb_req_fail(req, "failed", "Error: afb_req_subscribe()");
 555             return;
 556         }
 557         afb_req_success(req, NULL, "success");
 558     }
 559     catch (std::exception &e)
 560     {
 561         afb_req_fail_f(req, "failed", "Uncaught exception while calling wm_subscribe: %s", e.what());
 562         return;
 563     }
 564 }
 565
 566 void windowmanager_list_drawing_names(afb_req req) noexcept
 567 {
 568     std::lock_guard<std::mutex> guard(binding_m);
 569 #ifdef ST
 570     ST();
 571 #endif
 572     if (g_afb_instance == nullptr)
 573     {
 574         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 575         return;
 576     }
 577
 578     try
 579     {
 580
 581         nlohmann::json j = g_afb_instance->wmgr.id_alloc.name2id;
 582         auto ret = wm::Ok(json_tokener_parse(j.dump().c_str()));
 583         if (ret.is_err())
 584         {
 585             afb_req_fail(req, "failed", ret.unwrap_err());
 586             return;
 587         }
 588
 589         afb_req_success(req, ret.unwrap(), "success");
 590     }
 591     catch (std::exception &e)
 592     {
 593         afb_req_fail_f(req, "failed", "Uncaught exception while calling list_drawing_names: %s", e.what());
 594         return;
 595     }
 596 }
 597
 598 void windowmanager_ping(afb_req req) noexcept
 599 {
 600     std::lock_guard<std::mutex> guard(binding_m);
 601 #ifdef ST
 602     ST();
 603 #endif
 604     if (g_afb_instance == nullptr)
 605     {
 606         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 607         return;
 608     }
 609
 610     try
 611     {
 612
 613         g_afb_instance->wmgr.api_ping();
 614
 615         afb_req_success(req, NULL, "success");
 616     }
 617     catch (std::exception &e)
 618     {
 619         afb_req_fail_f(req, "failed", "Uncaught exception while calling ping: %s", e.what());
 620         return;
 621     }
 622 }
 623
 624 void windowmanager_debug_status(afb_req req) noexcept
 625 {
 626     std::lock_guard<std::mutex> guard(binding_m);
 627 #ifdef ST
 628     ST();
 629 #endif
 630     if (g_afb_instance == nullptr)
 631     {
 632         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 633         return;
 634     }
 635
 636     try
 637     {
 638
 639         json_object *jr = json_object_new_object();
 640         json_object_object_add(jr, "surfaces",
 641                                to_json(g_afb_instance->wmgr.controller->sprops));
 642         json_object_object_add(jr, "layers", to_json(g_afb_instance->wmgr.controller->lprops));
 643
 644         afb_req_success(req, jr, "success");
 645     }
 646     catch (std::exception &e)
 647     {
 648         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_status: %s", e.what());
 649         return;
 650     }
 651 }
 652
 653 void windowmanager_debug_layers(afb_req req) noexcept
 654 {
 655     std::lock_guard<std::mutex> guard(binding_m);
 656 #ifdef ST
 657     ST();
 658 #endif
 659     if (g_afb_instance == nullptr)
 660     {
 661         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 662         return;
 663     }
 664
 665     try
 666     {
 667         auto ret = wm::Ok(json_tokener_parse(g_afb_instance->wmgr.layers.to_json().dump().c_str()));
 668
 669         afb_req_success(req, ret, "success");
 670     }
 671     catch (std::exception &e)
 672     {
 673         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_layers: %s", e.what());
 674         return;
 675     }
 676 }
 677
 678 void windowmanager_debug_surfaces(afb_req req) noexcept
 679 {
 680     std::lock_guard<std::mutex> guard(binding_m);
 681 #ifdef ST
 682     ST();
 683 #endif
 684     if (g_afb_instance == nullptr)
 685     {
 686         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 687         return;
 688     }
 689
 690     try
 691     {
 692
 693         auto ret = wm::Ok(to_json(g_afb_instance->wmgr.controller->sprops));
 694         if (ret.is_err())
 695         {
 696             afb_req_fail(req, "failed", ret.unwrap_err());
 697             return;
 698         }
 699
 700         afb_req_success(req, ret.unwrap(), "success");
 701     }
 702     catch (std::exception &e)
 703     {
 704         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_surfaces: %s", e.what());
 705         return;
 706     }
 707 }
 708
 709 void windowmanager_debug_terminate(afb_req req) noexcept
 710 {
 711     std::lock_guard<std::mutex> guard(binding_m);
 712 #ifdef ST
 713     ST();
 714 #endif
 715     if (g_afb_instance == nullptr)
 716     {
 717         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 718         return;
 719     }
 720
 721     try
 722     {
 723
 724         if (getenv("WINMAN_DEBUG_TERMINATE") != nullptr)
 725         {
 726             raise(SIGKILL); // afb-daemon kills it's pgroup using TERM, which
 727                             // doesn't play well with perf
 728         }
 729
 730         afb_req_success(req, NULL, "success");
 731     }
 732     catch (std::exception &e)
 733     {
 734         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_terminate: %s", e.what());
 735         return;
 736     }
 737 }
 738
 739 const struct afb_verb_v2 windowmanager_verbs[] = {
 740     {"requestsurface", windowmanager_requestsurface, nullptr, nullptr, AFB_SESSION_NONE},
 741     {"requestsurfacexdg", windowmanager_requestsurfacexdg, nullptr, nullptr, AFB_SESSION_NONE},
 742     {"activatewindow", windowmanager_activatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 743     {"deactivatewindow", windowmanager_deactivatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 744     {"enddraw", windowmanager_enddraw, nullptr, nullptr, AFB_SESSION_NONE},
 745     {"getdisplayinfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 746     {"getareainfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 747     {"wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE},
 748     {"list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE},
 749     {"ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE},
 750     {"debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE},
 751     {"debug_layers", windowmanager_debug_layers, nullptr, nullptr, AFB_SESSION_NONE},
 752     {"debug_surfaces", windowmanager_debug_surfaces, nullptr, nullptr, AFB_SESSION_NONE},
 753     {"debug_terminate", windowmanager_debug_terminate, nullptr, nullptr, AFB_SESSION_NONE},
 754     {}};
 755
 756 extern "C" const struct afb_binding_v2 afbBindingV2 = {
 757     "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};