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 <json.hpp>
  22 #include "app.hpp"
  23 #include "result.hpp"
  24 #include "json_helper.hpp"
  25 #include "util.hpp"
  26 #include "wayland_ivi_wm.hpp"
  27
  28 extern "C"
  29 {
  30 #include <afb/afb-binding.h>
  31 #include <systemd/sd-event.h>
  32 }
  33
  34 typedef struct WMClientCtxt
  35 {
  36     std::string name;
  37     std::string role;
  38     WMClientCtxt(const char *appName, const char* appRole)
  39     {
  40         name = appName;
  41         role = role;
  42     }
  43 } WMClientCtxt;
  44
  45 struct afb_instance
  46 {
  47     std::unique_ptr<wl::display> display;
  48     wm::App app;
  49
  50     afb_instance() : display{new wl::display}, app{this->display.get()} {}
  51
  52     int init();
  53 };
  54
  55 struct afb_instance *g_afb_instance;
  56 std::mutex binding_m;
  57
  58 int afb_instance::init()
  59 {
  60     return this->app.init();
  61 }
  62
  63 int display_event_callback(sd_event_source *evs, int /*fd*/, uint32_t events,
  64                            void * /*data*/)
  65 {
  66     ST();
  67
  68     if ((events & EPOLLHUP) != 0)
  69     {
  70         HMI_ERROR("wm", "The compositor hung up, dying now.");
  71         delete g_afb_instance;
  72         g_afb_instance = nullptr;
  73         goto error;
  74     }
  75
  76     if ((events & EPOLLIN) != 0u)
  77     {
  78         {
  79             STN(display_read_events);
  80             g_afb_instance->app.display->read_events();
  81             g_afb_instance->app.set_pending_events();
  82         }
  83         {
  84             // We want do dispatch pending wayland events from within
  85             // the API context
  86             STN(winman_ping_api_call);
  87             afb_service_call("windowmanager", "ping", json_object_new_object(),
  88                              [](void *c, int st, json_object *j) {
  89                                  STN(winman_ping_api_call_return);
  90                              },
  91                              nullptr);
  92         }
  93     }
  94
  95     return 0;
  96
  97 error:
  98     sd_event_source_unref(evs);
  99     if (getenv("WINMAN_EXIT_ON_HANGUP") != nullptr)
 100     {
 101         exit(1);
 102     }
 103     return -1;
 104 }
 105
 106 int _binding_init()
 107 {
 108     HMI_NOTICE("wm", "WinMan ver. %s", WINMAN_VERSION_STRING);
 109
 110     if (g_afb_instance != nullptr)
 111     {
 112         HMI_ERROR("wm", "Wayland context already initialized?");
 113         return 0;
 114     }
 115
 116     if (getenv("XDG_RUNTIME_DIR") == nullptr)
 117     {
 118         HMI_ERROR("wm", "Environment variable XDG_RUNTIME_DIR not set");
 119         goto error;
 120     }
 121
 122     {
 123         // wait until wayland compositor starts up.
 124         int cnt = 0;
 125         g_afb_instance = new afb_instance;
 126         while (!g_afb_instance->display->ok())
 127         {
 128             cnt++;
 129             if (20 <= cnt)
 130             {
 131                 HMI_ERROR("wm", "Could not connect to compositor");
 132                 goto error;
 133             }
 134             HMI_ERROR("wm", "Wait to start weston ...");
 135             sleep(1);
 136             delete g_afb_instance;
 137             g_afb_instance = new afb_instance;
 138         }
 139     }
 140
 141     if (g_afb_instance->init() == -1)
 142     {
 143         HMI_ERROR("wm", "Could not connect to compositor");
 144         goto error;
 145     }
 146
 147     {
 148         int ret = sd_event_add_io(afb_daemon_get_event_loop(), nullptr,
 149                                   g_afb_instance->display->get_fd(), EPOLLIN,
 150                                   display_event_callback, g_afb_instance);
 151         if (ret < 0)
 152         {
 153             HMI_ERROR("wm", "Could not initialize afb_instance event handler: %d", -ret);
 154             goto error;
 155         }
 156     }
 157
 158     atexit([] { delete g_afb_instance; });
 159
 160     return 0;
 161
 162 error:
 163     delete g_afb_instance;
 164     g_afb_instance = nullptr;
 165     return -1;
 166 }
 167
 168 int binding_init() noexcept
 169 {
 170     try
 171     {
 172         return _binding_init();
 173     }
 174     catch (std::exception &e)
 175     {
 176         HMI_ERROR("wm", "Uncaught exception in binding_init(): %s", e.what());
 177     }
 178     return -1;
 179 }
 180
 181 static bool checkFirstReq(afb_req req)
 182 {
 183     WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 184     return (ctxt) ? false : true;
 185 }
 186
 187 static void cbRemoveClientCtxt(void *data)
 188 {
 189     WMClientCtxt *ctxt = (WMClientCtxt *)data;
 190     if (ctxt == nullptr)
 191     {
 192         return;
 193     }
 194     HMI_DEBUG("wm", "remove app %s", ctxt->name.c_str());
 195     // Lookup surfaceID and remove it because App is dead.
 196     auto pSid = g_afb_instance->app.id_alloc.lookup(ctxt->role.c_str());
 197     if (pSid)
 198     {
 199         auto sid = *pSid;
 200         g_afb_instance->app.id_alloc.remove_id(sid);
 201         g_afb_instance->app.layers.remove_surface(sid);
 202         g_afb_instance->app.controller->sprops.erase(sid);
 203         g_afb_instance->app.controller->surfaces.erase(sid);
 204         HMI_DEBUG("wm", "delete surfaceID %d", sid);
 205     }
 206     g_afb_instance->app.removeClient(ctxt->name);
 207     delete ctxt;
 208 }
 209
 210 void windowmanager_requestsurface(afb_req req) noexcept
 211 {
 212     std::lock_guard<std::mutex> guard(binding_m);
 213 #ifdef ST
 214     ST();
 215 #endif
 216     if (g_afb_instance == nullptr)
 217     {
 218         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 219         return;
 220     }
 221
 222     try
 223     {
 224         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 225         if (!a_drawing_name)
 226         {
 227             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 228             return;
 229         }
 230
 231         /* Create Security Context */
 232         bool isFirstReq = checkFirstReq(req);
 233         if (!isFirstReq)
 234         {
 235             WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 236             HMI_DEBUG("wm", "You're %s.", ctxt->name.c_str());
 237             if (ctxt->name != std::string(a_drawing_name))
 238             {
 239                 afb_req_fail_f(req, "failed", "Dont request with other name: %s for now", a_drawing_name);
 240                 HMI_DEBUG("wm", "Don't request with other name: %s for now", a_drawing_name);
 241                 return;
 242             }
 243         }
 244
 245         auto ret = g_afb_instance->app.api_request_surface(
 246             afb_req_get_application_id(req), a_drawing_name);
 247
 248         if (isFirstReq)
 249         {
 250             WMClientCtxt *ctxt = new WMClientCtxt(afb_req_get_application_id(req), a_drawing_name);
 251             HMI_DEBUG("wm", "create session for %s", ctxt->name.c_str());
 252             afb_req_session_set_LOA(req, 1);
 253             afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 254         }
 255         else
 256         {
 257             HMI_DEBUG("wm", "session already created for %s", a_drawing_name);
 258         }
 259
 260         if (ret.is_err())
 261         {
 262             afb_req_fail(req, "failed", ret.unwrap_err());
 263             return;
 264         }
 265
 266         afb_req_success(req, json_object_new_int(ret.unwrap()), "success");
 267     }
 268     catch (std::exception &e)
 269     {
 270         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurface: %s", e.what());
 271         return;
 272     }
 273 }
 274
 275 void windowmanager_requestsurfacexdg(afb_req req) noexcept
 276 {
 277     std::lock_guard<std::mutex> guard(binding_m);
 278 #ifdef ST
 279     ST();
 280 #endif
 281     if (g_afb_instance == nullptr)
 282     {
 283         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 284         return;
 285     }
 286
 287     try
 288     {
 289         json_object *jreq = afb_req_json(req);
 290
 291         json_object *j_drawing_name = nullptr;
 292         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 293         {
 294             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 295             return;
 296         }
 297         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 298
 299         json_object *j_ivi_id = nullptr;
 300         if (!json_object_object_get_ex(jreq, "ivi_id", &j_ivi_id))
 301         {
 302             afb_req_fail(req, "failed", "Need char const* argument ivi_id");
 303             return;
 304         }
 305         char const *a_ivi_id = json_object_get_string(j_ivi_id);
 306
 307         auto ret = g_afb_instance->app.api_request_surface(
 308             afb_req_get_application_id(req), a_drawing_name, a_ivi_id);
 309         if (ret != nullptr)
 310         {
 311             afb_req_fail(req, "failed", ret);
 312             return;
 313         }
 314
 315         afb_req_success(req, NULL, "success");
 316     }
 317     catch (std::exception &e)
 318     {
 319         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 320         return;
 321     }
 322 }
 323
 324 void windowmanager_setrole(afb_req req) noexcept
 325 {
 326     std::lock_guard<std::mutex> guard(binding_m);
 327     if (g_afb_instance == nullptr)
 328     {
 329         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 330         return;
 331     }
 332     try
 333     {
 334         unsigned pid = 0;
 335         std::string appid = afb_req_get_application_id(req);
 336         json_object *jreq = afb_req_json(req);
 337
 338         json_object *j_role = nullptr;
 339         if (!json_object_object_get_ex(jreq, "role", &j_role))
 340         {
 341             afb_req_fail(req, "failed", "Need char const* argument role");
 342             return;
 343         }
 344         char const *a_role = json_object_get_string(j_role);
 345
 346         /* Create Security Context */
 347         bool isFirstReq = checkFirstReq(req);
 348         /* if (!isFirstReq)
 349         {
 350             WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 351             HMI_DEBUG("wm", "Set %s into %s.", a_role, appid.c_str());
 352         } */
 353
 354         json_object *j_pid = nullptr;
 355         if (json_object_object_get_ex(jreq, "pid", &j_pid))
 356         {
 357             HMI_DEBUG("wm", "PID is set");
 358             char const *a_pid = json_object_get_string(j_pid);
 359             pid = std::stol(a_pid);
 360         }
 361
 362         bool ret = g_afb_instance->app.api_set_role(appid.c_str(), a_role, pid);
 363         if (!ret)
 364         {
 365             afb_req_fail(req, "failed", "Couldn't register");
 366             return;
 367         }
 368
 369         if (isFirstReq)
 370         {
 371             WMClientCtxt *ctxt = new WMClientCtxt(appid.c_str(), a_role);
 372             HMI_DEBUG("wm", "create session for appid:%s, role: %s", ctxt->name.c_str(), ctxt->role.c_str());
 373             afb_req_session_set_LOA(req, 1);
 374             afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 375         }
 376         else
 377         {
 378             HMI_DEBUG("wm", "session already created for %s", appid.c_str());
 379         }
 380
 381         afb_req_success(req, NULL, "success");
 382     }
 383     catch (std::exception &e)
 384     {
 385         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 386         return;
 387     }
 388 }
 389
 390 void windowmanager_activatesurface(afb_req req) noexcept
 391 {
 392     std::lock_guard<std::mutex> guard(binding_m);
 393 #ifdef ST
 394     ST();
 395 #endif
 396     if (g_afb_instance == nullptr)
 397     {
 398         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 399         return;
 400     }
 401
 402     try
 403     {
 404         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 405         if (!a_drawing_name)
 406         {
 407             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 408             return;
 409         }
 410
 411         const char *a_drawing_area = afb_req_value(req, "drawing_area");
 412         if (!a_drawing_area)
 413         {
 414             afb_req_fail(req, "failed", "Need char const* argument drawing_area");
 415             return;
 416         }
 417
 418         g_afb_instance->app.api_activate_surface(
 419             afb_req_get_application_id(req),
 420             a_drawing_name, a_drawing_area,
 421             [&req](const char *errmsg) {
 422                 if (errmsg != nullptr)
 423                 {
 424                     HMI_ERROR("wm", errmsg);
 425                     afb_req_fail(req, "failed", errmsg);
 426                     return;
 427                 }
 428                 afb_req_success(req, NULL, "success");
 429             });
 430     }
 431     catch (std::exception &e)
 432     {
 433         HMI_WARNING("wm", "failed", "Uncaught exception while calling activatesurface: %s", e.what());
 434         return;
 435     }
 436 }
 437
 438 void windowmanager_deactivatesurface(afb_req req) noexcept
 439 {
 440     std::lock_guard<std::mutex> guard(binding_m);
 441 #ifdef ST
 442     ST();
 443 #endif
 444     if (g_afb_instance == nullptr)
 445     {
 446         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 447         return;
 448     }
 449
 450     try
 451     {
 452         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 453         if (!a_drawing_name)
 454         {
 455             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 456             return;
 457         }
 458
 459         g_afb_instance->app.api_deactivate_surface(
 460             afb_req_get_application_id(req), a_drawing_name,
 461             [&req](const char *errmsg) {
 462                 if (errmsg != nullptr)
 463                 {
 464                     HMI_ERROR("wm", errmsg);
 465                     afb_req_fail(req, "failed", errmsg);
 466                     return;
 467                 }
 468                 afb_req_success(req, NULL, "success");
 469             });
 470     }
 471     catch (std::exception &e)
 472     {
 473         HMI_WARNING("wm", "Uncaught exception while calling deactivatesurface: %s", e.what());
 474         return;
 475     }
 476 }
 477
 478 void windowmanager_enddraw(afb_req req) noexcept
 479 {
 480     std::lock_guard<std::mutex> guard(binding_m);
 481 #ifdef ST
 482     ST();
 483 #endif
 484     if (g_afb_instance == nullptr)
 485     {
 486         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 487         return;
 488     }
 489
 490     try
 491     {
 492         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 493         if (!a_drawing_name)
 494         {
 495             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 496             return;
 497         }
 498         afb_req_success(req, NULL, "success");
 499
 500         g_afb_instance->app.api_enddraw(
 501             afb_req_get_application_id(req), a_drawing_name);
 502     }
 503     catch (std::exception &e)
 504     {
 505         HMI_WARNING("wm", "failed", "Uncaught exception while calling enddraw: %s", e.what());
 506         return;
 507     }
 508 }
 509
 510 void windowmanager_getdisplayinfo_thunk(afb_req req) noexcept
 511 {
 512     std::lock_guard<std::mutex> guard(binding_m);
 513 #ifdef ST
 514     ST();
 515 #endif
 516     if (g_afb_instance == nullptr)
 517     {
 518         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 519         return;
 520     }
 521
 522     try
 523     {
 524         auto ret = g_afb_instance->app.api_get_display_info();
 525         if (ret.is_err())
 526         {
 527             afb_req_fail(req, "failed", ret.unwrap_err());
 528             return;
 529         }
 530
 531         afb_req_success(req, ret.unwrap(), "success");
 532     }
 533     catch (std::exception &e)
 534     {
 535         afb_req_fail_f(req, "failed", "Uncaught exception while calling getdisplayinfo: %s", e.what());
 536         return;
 537     }
 538 }
 539
 540 void windowmanager_getareainfo_thunk(afb_req req) noexcept
 541 {
 542     std::lock_guard<std::mutex> guard(binding_m);
 543 #ifdef ST
 544     ST();
 545 #endif
 546     if (g_afb_instance == nullptr)
 547     {
 548         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 549         return;
 550     }
 551
 552     try
 553     {
 554         json_object *jreq = afb_req_json(req);
 555
 556         json_object *j_drawing_name = nullptr;
 557         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 558         {
 559             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 560             return;
 561         }
 562         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 563
 564         auto ret = g_afb_instance->app.api_get_area_info(a_drawing_name);
 565         if (ret.is_err())
 566         {
 567             afb_req_fail(req, "failed", ret.unwrap_err());
 568             return;
 569         }
 570
 571         afb_req_success(req, ret.unwrap(), "success");
 572     }
 573     catch (std::exception &e)
 574     {
 575         afb_req_fail_f(req, "failed", "Uncaught exception while calling getareainfo: %s", e.what());
 576         return;
 577     }
 578 }
 579
 580 void windowmanager_wm_subscribe(afb_req req) noexcept
 581 {
 582     std::lock_guard<std::mutex> guard(binding_m);
 583 #ifdef ST
 584     ST();
 585 #endif
 586     if (g_afb_instance == nullptr)
 587     {
 588         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 589         return;
 590     }
 591
 592     try
 593     {
 594         json_object *jreq = afb_req_json(req);
 595         json_object *j = nullptr;
 596         if (!json_object_object_get_ex(jreq, "event", &j))
 597         {
 598             afb_req_fail(req, "failed", "Need char const* argument event");
 599             return;
 600         }
 601         int event_type = json_object_get_int(j);
 602         const char *event_name = g_afb_instance->app.kListEventName[event_type];
 603         struct afb_event event = g_afb_instance->app.map_afb_event[event_name];
 604         int ret = afb_req_subscribe(req, event);
 605         if (ret)
 606         {
 607             afb_req_fail(req, "failed", "Error: afb_req_subscribe()");
 608             return;
 609         }
 610         afb_req_success(req, NULL, "success");
 611     }
 612     catch (std::exception &e)
 613     {
 614         afb_req_fail_f(req, "failed", "Uncaught exception while calling wm_subscribe: %s", e.what());
 615         return;
 616     }
 617 }
 618
 619 void windowmanager_list_drawing_names(afb_req req) noexcept
 620 {
 621     std::lock_guard<std::mutex> guard(binding_m);
 622 #ifdef ST
 623     ST();
 624 #endif
 625     if (g_afb_instance == nullptr)
 626     {
 627         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 628         return;
 629     }
 630
 631     try
 632     {
 633
 634         nlohmann::json j = g_afb_instance->app.id_alloc.name2id;
 635         auto ret = wm::Ok(json_tokener_parse(j.dump().c_str()));
 636         if (ret.is_err())
 637         {
 638             afb_req_fail(req, "failed", ret.unwrap_err());
 639             return;
 640         }
 641
 642         afb_req_success(req, ret.unwrap(), "success");
 643     }
 644     catch (std::exception &e)
 645     {
 646         afb_req_fail_f(req, "failed", "Uncaught exception while calling list_drawing_names: %s", e.what());
 647         return;
 648     }
 649 }
 650
 651 void windowmanager_ping(afb_req req) noexcept
 652 {
 653     std::lock_guard<std::mutex> guard(binding_m);
 654 #ifdef ST
 655     ST();
 656 #endif
 657     if (g_afb_instance == nullptr)
 658     {
 659         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 660         return;
 661     }
 662
 663     try
 664     {
 665
 666         g_afb_instance->app.api_ping();
 667
 668         afb_req_success(req, NULL, "success");
 669     }
 670     catch (std::exception &e)
 671     {
 672         afb_req_fail_f(req, "failed", "Uncaught exception while calling ping: %s", e.what());
 673         return;
 674     }
 675 }
 676
 677 void windowmanager_debug_status(afb_req req) noexcept
 678 {
 679     std::lock_guard<std::mutex> guard(binding_m);
 680 #ifdef ST
 681     ST();
 682 #endif
 683     if (g_afb_instance == nullptr)
 684     {
 685         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 686         return;
 687     }
 688
 689     try
 690     {
 691
 692         json_object *jr = json_object_new_object();
 693         json_object_object_add(jr, "surfaces",
 694                                to_json(g_afb_instance->app.controller->sprops));
 695         json_object_object_add(jr, "layers", to_json(g_afb_instance->app.controller->lprops));
 696
 697         afb_req_success(req, jr, "success");
 698     }
 699     catch (std::exception &e)
 700     {
 701         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_status: %s", e.what());
 702         return;
 703     }
 704 }
 705
 706 void windowmanager_debug_layers(afb_req req) noexcept
 707 {
 708     std::lock_guard<std::mutex> guard(binding_m);
 709 #ifdef ST
 710     ST();
 711 #endif
 712     if (g_afb_instance == nullptr)
 713     {
 714         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 715         return;
 716     }
 717
 718     try
 719     {
 720         auto ret = wm::Ok(json_tokener_parse(g_afb_instance->app.layers.to_json().dump().c_str()));
 721
 722         afb_req_success(req, ret, "success");
 723     }
 724     catch (std::exception &e)
 725     {
 726         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_layers: %s", e.what());
 727         return;
 728     }
 729 }
 730
 731 void windowmanager_debug_surfaces(afb_req req) noexcept
 732 {
 733     std::lock_guard<std::mutex> guard(binding_m);
 734 #ifdef ST
 735     ST();
 736 #endif
 737     if (g_afb_instance == nullptr)
 738     {
 739         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 740         return;
 741     }
 742
 743     try
 744     {
 745
 746         auto ret = wm::Ok(to_json(g_afb_instance->app.controller->sprops));
 747         if (ret.is_err())
 748         {
 749             afb_req_fail(req, "failed", ret.unwrap_err());
 750             return;
 751         }
 752
 753         afb_req_success(req, ret.unwrap(), "success");
 754     }
 755     catch (std::exception &e)
 756     {
 757         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_surfaces: %s", e.what());
 758         return;
 759     }
 760 }
 761
 762 void windowmanager_debug_terminate(afb_req req) noexcept
 763 {
 764     std::lock_guard<std::mutex> guard(binding_m);
 765 #ifdef ST
 766     ST();
 767 #endif
 768     if (g_afb_instance == nullptr)
 769     {
 770         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 771         return;
 772     }
 773
 774     try
 775     {
 776
 777         if (getenv("WINMAN_DEBUG_TERMINATE") != nullptr)
 778         {
 779             raise(SIGKILL); // afb-daemon kills it's pgroup using TERM, which
 780                             // doesn't play well with perf
 781         }
 782
 783         afb_req_success(req, NULL, "success");
 784     }
 785     catch (std::exception &e)
 786     {
 787         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_terminate: %s", e.what());
 788         return;
 789     }
 790 }
 791
 792 const struct afb_verb_v2 windowmanager_verbs[] = {
 793     {"requestsurface", windowmanager_requestsurface, nullptr, nullptr, AFB_SESSION_NONE},
 794     {"requestsurfacexdg", windowmanager_requestsurfacexdg, nullptr, nullptr, AFB_SESSION_NONE},
 795     {"setrole", windowmanager_setrole, nullptr, nullptr, AFB_SESSION_NONE},
 796     {"activatesurface", windowmanager_activatesurface, nullptr, nullptr, AFB_SESSION_LOA_1},
 797     {"deactivatesurface", windowmanager_deactivatesurface, nullptr, nullptr, AFB_SESSION_LOA_1},
 798     {"enddraw", windowmanager_enddraw, nullptr, nullptr, AFB_SESSION_LOA_1},
 799     {"getdisplayinfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 800     {"getareainfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_LOA_1},
 801     {"wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE},
 802     {"list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE},
 803     {"ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE},
 804     {"debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE},
 805     {"debug_layers", windowmanager_debug_layers, nullptr, nullptr, AFB_SESSION_NONE},
 806     {"debug_surfaces", windowmanager_debug_surfaces, nullptr, nullptr, AFB_SESSION_NONE},
 807     {"debug_terminate", windowmanager_debug_terminate, nullptr, nullptr, AFB_SESSION_NONE},
 808     {}};
 809
 810 extern "C" const struct afb_binding_v2 afbBindingV2 = {
 811     "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};