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 <stdlib.h>
  22 #include "window_manager.hpp"
  23 #include "json_helper.hpp"
  24
  25 extern "C"
  26 {
  27 #include <afb/afb-binding.h>
  28 #include <systemd/sd-event.h>
  29 }
  30
  31 typedef struct WMClientCtxt
  32 {
  33     std::string name;
  34     std::string role;
  35     WMClientCtxt(const char *appName, const char* appRole)
  36     {
  37         name = appName;
  38         role = appRole;
  39     }
  40 } WMClientCtxt;
  41
  42 struct afb_instance
  43 {
  44     wm::WindowManager wmgr;
  45
  46     afb_instance() : wmgr() {}
  47     ~afb_instance() = default;
  48
  49     int init();
  50 };
  51
  52 struct afb_instance *g_afb_instance;
  53 std::mutex binding_m;
  54
  55 int afb_instance::init()
  56 {
  57     return this->wmgr.init();
  58 }
  59
  60 int _binding_init()
  61 {
  62     HMI_NOTICE("WinMan ver. %s", WINMAN_VERSION_STRING);
  63
  64     g_afb_instance = new afb_instance;
  65
  66     if (g_afb_instance->init() == -1)
  67     {
  68         HMI_ERROR("Could not connect to compositor");
  69         goto error;
  70     }
  71
  72     atexit([] { delete g_afb_instance; });
  73
  74     return 0;
  75
  76 error:
  77     delete g_afb_instance;
  78     g_afb_instance = nullptr;
  79     return -1;
  80 }
  81
  82 int binding_init() noexcept
  83 {
  84     try
  85     {
  86         return _binding_init();
  87     }
  88     catch (std::exception &e)
  89     {
  90         HMI_ERROR("Uncaught exception in binding_init(): %s", e.what());
  91     }
  92     return -1;
  93 }
  94
  95 static void cbRemoveClientCtxt(void *data)
  96 {
  97     WMClientCtxt *ctxt = (WMClientCtxt *)data;
  98     if (ctxt == nullptr)
  99     {
 100         return;
 101     }
 102     HMI_DEBUG("remove app %s", ctxt->name.c_str());
 103
 104     // Policy Manager does not know this app was killed,
 105     // so notify it by deactivate request.
 106     g_afb_instance->wmgr.api_deactivate_surface(
 107         ctxt->name.c_str(), ctxt->role.c_str(),
 108         [](const char *) {});
 109
 110     g_afb_instance->wmgr.removeClient(ctxt->name);
 111     delete ctxt;
 112 }
 113
 114 static void createSecurityContext(afb_req req, const char* appid, const char* role)
 115 {
 116     WMClientCtxt *ctxt = (WMClientCtxt *)afb_req_context_get(req);
 117     if (!ctxt)
 118     {
 119         // Create Security Context at first time
 120         const char *new_role = g_afb_instance->wmgr.convertRoleOldToNew(role);
 121         WMClientCtxt *ctxt = new WMClientCtxt(appid, new_role);
 122         HMI_DEBUG("create session for %s", ctxt->name.c_str());
 123         afb_req_session_set_LOA(req, 1);
 124         afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
 125     }
 126 }
 127
 128 void windowmanager_requestsurface(afb_req req) noexcept
 129 {
 130     std::lock_guard<std::mutex> guard(binding_m);
 131
 132     if (g_afb_instance == nullptr)
 133     {
 134         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 135         return;
 136     }
 137
 138     try
 139     {
 140         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 141         if (!a_drawing_name)
 142         {
 143             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 144             return;
 145         }
 146
 147         char *appid = afb_req_get_application_id(req);
 148         if(appid)
 149         {
 150             auto ret = g_afb_instance->wmgr.api_request_surface(
 151                 appid, a_drawing_name);
 152             if (ret.is_err())
 153             {
 154                 afb_req_fail(req, "failed", ret.unwrap_err());
 155             }
 156             else
 157             {
 158                 createSecurityContext(req, appid, a_drawing_name);
 159                 afb_req_success(req, json_object_new_int(ret.unwrap()), "success");
 160             }
 161             free(appid);
 162         }
 163         else
 164         {
 165             afb_req_fail(req, "failed", nullptr);
 166         }
 167     }
 168     catch (std::exception &e)
 169     {
 170         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurface: %s", e.what());
 171         return;
 172     }
 173 }
 174
 175 void windowmanager_requestsurfacexdg(afb_req req) noexcept
 176 {
 177     std::lock_guard<std::mutex> guard(binding_m);
 178
 179     if (g_afb_instance == nullptr)
 180     {
 181         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 182         return;
 183     }
 184
 185     try
 186     {
 187         json_object *jreq = afb_req_json(req);
 188
 189         json_object *j_drawing_name = nullptr;
 190         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 191         {
 192             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 193             return;
 194         }
 195         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 196
 197         json_object *j_ivi_id = nullptr;
 198         if (!json_object_object_get_ex(jreq, "ivi_id", &j_ivi_id))
 199         {
 200             afb_req_fail(req, "failed", "Need char const* argument ivi_id");
 201             return;
 202         }
 203         char const *a_ivi_id = json_object_get_string(j_ivi_id);
 204         char *appid = afb_req_get_application_id(req);
 205         if(appid)
 206         {
 207             auto ret = g_afb_instance->wmgr.api_request_surface(
 208                 appid, a_drawing_name, a_ivi_id);
 209
 210             if (ret != nullptr)
 211             {
 212                 afb_req_fail(req, "failed", ret);
 213             }
 214             else
 215             {
 216                 createSecurityContext(req, appid, a_drawing_name);
 217                 afb_req_success(req, NULL, "success");
 218             }
 219             free(appid);
 220         }
 221     }
 222     catch (std::exception &e)
 223     {
 224         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 225         return;
 226     }
 227 }
 228
 229 void windowmanager_setrole(afb_req req) noexcept
 230 {
 231     std::lock_guard<std::mutex> guard(binding_m);
 232     if (g_afb_instance == nullptr)
 233     {
 234         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 235         return;
 236     }
 237     try
 238     {
 239         json_object *jreq = afb_req_json(req);
 240
 241         json_object *j_role = nullptr;
 242         if (!json_object_object_get_ex(jreq, "role", &j_role))
 243         {
 244             afb_req_fail(req, "failed", "Need char const* argument role");
 245             return;
 246         }
 247         char const *a_role = json_object_get_string(j_role);
 248         char *appid = afb_req_get_application_id(req);
 249
 250         if(appid)
 251         {
 252             auto ret = g_afb_instance->wmgr.api_set_role(appid, a_role);
 253             if (!ret)
 254             {
 255                 afb_req_fail(req, "failed", "Couldn't register");
 256             }
 257             else
 258             {
 259                 createSecurityContext(req, appid, a_role);
 260                 afb_req_success(req, NULL, "success");
 261             }
 262             free(appid);
 263         }
 264     }
 265     catch (std::exception &e)
 266     {
 267         afb_req_fail_f(req, "failed", "Uncaught exception while calling requestsurfacexdg: %s", e.what());
 268         return;
 269     }
 270 }
 271
 272 void windowmanager_activatewindow(afb_req req) noexcept
 273 {
 274     std::lock_guard<std::mutex> guard(binding_m);
 275
 276     if (g_afb_instance == nullptr)
 277     {
 278         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 279         return;
 280     }
 281
 282     try
 283     {
 284         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 285         if (!a_drawing_name)
 286         {
 287             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 288             return;
 289         }
 290
 291         const char *a_drawing_area = afb_req_value(req, "drawing_area");
 292         if (!a_drawing_area)
 293         {
 294             afb_req_fail(req, "failed", "Need char const* argument drawing_area");
 295             return;
 296         }
 297
 298         char* appid = afb_req_get_application_id(req);
 299         if(appid)
 300         {
 301             g_afb_instance->wmgr.api_activate_surface(
 302                 appid, a_drawing_name, a_drawing_area,
 303                 [&req](const char *errmsg) {
 304                     if (errmsg != nullptr)
 305                     {
 306                         HMI_ERROR(errmsg);
 307                         afb_req_fail(req, "failed", errmsg);
 308                         return;
 309                     }
 310                     afb_req_success(req, NULL, "success");
 311                 });
 312             free(appid);
 313         }
 314     }
 315     catch (std::exception &e)
 316     {
 317         HMI_WARNING("failed: Uncaught exception while calling activatesurface: %s", e.what());
 318         g_afb_instance->wmgr.exceptionProcessForTransition();
 319         return;
 320     }
 321 }
 322
 323 void windowmanager_deactivatewindow(afb_req req) noexcept
 324 {
 325     std::lock_guard<std::mutex> guard(binding_m);
 326
 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         char* appid = afb_req_get_application_id(req);
 343         if(appid)
 344         {
 345             g_afb_instance->wmgr.api_deactivate_surface(
 346                 appid, a_drawing_name,
 347                 [&req](const char *errmsg) {
 348                     if (errmsg != nullptr)
 349                     {
 350                         HMI_ERROR(errmsg);
 351                         afb_req_fail(req, "failed", errmsg);
 352                         return;
 353                     }
 354                     afb_req_success(req, NULL, "success");
 355                 });
 356             free(appid);
 357         }
 358     }
 359     catch (std::exception &e)
 360     {
 361         HMI_WARNING("failed: Uncaught exception while calling deactivatesurface: %s", e.what());
 362         g_afb_instance->wmgr.exceptionProcessForTransition();
 363         return;
 364     }
 365 }
 366
 367 void windowmanager_enddraw(afb_req req) noexcept
 368 {
 369     std::lock_guard<std::mutex> guard(binding_m);
 370
 371     if (g_afb_instance == nullptr)
 372     {
 373         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 374         return;
 375     }
 376
 377     try
 378     {
 379         const char *a_drawing_name = afb_req_value(req, "drawing_name");
 380         if (!a_drawing_name)
 381         {
 382             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 383             return;
 384         }
 385         afb_req_success(req, NULL, "success");
 386
 387         char* appid = afb_req_get_application_id(req);
 388         if(appid)
 389         {
 390             g_afb_instance->wmgr.api_enddraw(appid, a_drawing_name);
 391             free(appid);
 392         }
 393     }
 394     catch (std::exception &e)
 395     {
 396         HMI_WARNING("failed: Uncaught exception while calling enddraw: %s", e.what());
 397         g_afb_instance->wmgr.exceptionProcessForTransition();
 398         return;
 399     }
 400 }
 401
 402 void windowmanager_getdisplayinfo_thunk(afb_req req) noexcept
 403 {
 404     std::lock_guard<std::mutex> guard(binding_m);
 405
 406     if (g_afb_instance == nullptr)
 407     {
 408         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 409         return;
 410     }
 411
 412     try
 413     {
 414         auto ret = g_afb_instance->wmgr.api_get_display_info();
 415         if (ret.is_err())
 416         {
 417             afb_req_fail(req, "failed", ret.unwrap_err());
 418             return;
 419         }
 420
 421         afb_req_success(req, ret.unwrap(), "success");
 422     }
 423     catch (std::exception &e)
 424     {
 425         afb_req_fail_f(req, "failed", "Uncaught exception while calling getdisplayinfo: %s", e.what());
 426         return;
 427     }
 428 }
 429
 430 void windowmanager_getareainfo_thunk(afb_req req) noexcept
 431 {
 432     std::lock_guard<std::mutex> guard(binding_m);
 433
 434     if (g_afb_instance == nullptr)
 435     {
 436         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 437         return;
 438     }
 439
 440     try
 441     {
 442         json_object *jreq = afb_req_json(req);
 443
 444         json_object *j_drawing_name = nullptr;
 445         if (!json_object_object_get_ex(jreq, "drawing_name", &j_drawing_name))
 446         {
 447             afb_req_fail(req, "failed", "Need char const* argument drawing_name");
 448             return;
 449         }
 450         char const *a_drawing_name = json_object_get_string(j_drawing_name);
 451
 452         auto ret = g_afb_instance->wmgr.api_get_area_info(a_drawing_name);
 453         if (ret.is_err())
 454         {
 455             afb_req_fail(req, "failed", ret.unwrap_err());
 456             return;
 457         }
 458
 459         afb_req_success(req, ret.unwrap(), "success");
 460     }
 461     catch (std::exception &e)
 462     {
 463         afb_req_fail_f(req, "failed", "Uncaught exception while calling getareainfo: %s", e.what());
 464         return;
 465     }
 466 }
 467
 468 void windowmanager_wm_subscribe(afb_req req) noexcept
 469 {
 470     std::lock_guard<std::mutex> guard(binding_m);
 471
 472     if (g_afb_instance == nullptr)
 473     {
 474         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 475         return;
 476     }
 477
 478     try
 479     {
 480         json_object *jreq = afb_req_json(req);
 481         json_object *j = nullptr;
 482         if (!json_object_object_get_ex(jreq, "event", &j))
 483         {
 484             afb_req_fail(req, "failed", "Need char const* argument event");
 485             return;
 486         }
 487         int event_type = json_object_get_int(j);
 488         const char *event_name = g_afb_instance->wmgr.kListEventName[event_type];
 489         struct afb_event event = g_afb_instance->wmgr.map_afb_event[event_name];
 490         int ret = afb_req_subscribe(req, event);
 491         if (ret)
 492         {
 493             afb_req_fail(req, "failed", "Error: afb_req_subscribe()");
 494             return;
 495         }
 496         afb_req_success(req, NULL, "success");
 497     }
 498     catch (std::exception &e)
 499     {
 500         afb_req_fail_f(req, "failed", "Uncaught exception while calling wm_subscribe: %s", e.what());
 501         return;
 502     }
 503 }
 504
 505 void windowmanager_list_drawing_names(afb_req req) noexcept
 506 {
 507     std::lock_guard<std::mutex> guard(binding_m);
 508
 509     /* if (g_afb_instance == nullptr)
 510     {
 511         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 512         return;
 513     }
 514
 515     try
 516     {
 517
 518         nlohmann::json j = g_afb_instance->wmgr.id_alloc.name2id;
 519         auto ret = wm::Ok(json_tokener_parse(j.dump().c_str()));
 520         if (ret.is_err())
 521         {
 522             afb_req_fail(req, "failed", ret.unwrap_err());
 523             return;
 524         }
 525
 526         afb_req_success(req, ret.unwrap(), "success");
 527     }
 528     catch (std::exception &e)
 529     {
 530         afb_req_fail_f(req, "failed", "Uncaught exception while calling list_drawing_names: %s", e.what());
 531         return;
 532     } */
 533 }
 534
 535 void windowmanager_ping(afb_req req) noexcept
 536 {
 537     std::lock_guard<std::mutex> guard(binding_m);
 538
 539     if (g_afb_instance == nullptr)
 540     {
 541         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 542         return;
 543     }
 544     else
 545     {
 546         afb_req_success(req, NULL, "success");
 547     }
 548 }
 549
 550 void windowmanager_debug_status(afb_req req) noexcept
 551 {
 552     std::lock_guard<std::mutex> guard(binding_m);
 553
 554     /* if (g_afb_instance == nullptr)
 555     {
 556         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 557         return;
 558     }
 559
 560     try
 561     {
 562
 563         json_object *jr = json_object_new_object();
 564         json_object_object_add(jr, "surfaces",
 565                                to_json(g_afb_instance->wmgr.controller->sprops));
 566         json_object_object_add(jr, "layers", to_json(g_afb_instance->wmgr.controller->lprops));
 567
 568         afb_req_success(req, jr, "success");
 569     }
 570     catch (std::exception &e)
 571     {
 572         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_status: %s", e.what());
 573         return;
 574     } */
 575 }
 576
 577 void windowmanager_debug_layers(afb_req req) noexcept
 578 {
 579     std::lock_guard<std::mutex> guard(binding_m);
 580
 581     /* if (g_afb_instance == nullptr)
 582     {
 583         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 584         return;
 585     }
 586
 587     try
 588     {
 589         auto ret = wm::Ok(json_tokener_parse(g_afb_instance->wmgr.layers.to_json().dump().c_str()));
 590
 591         afb_req_success(req, ret, "success");
 592     }
 593     catch (std::exception &e)
 594     {
 595         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_layers: %s", e.what());
 596         return;
 597     } */
 598 }
 599
 600 void windowmanager_debug_surfaces(afb_req req) noexcept
 601 {
 602     std::lock_guard<std::mutex> guard(binding_m);
 603
 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         auto ret = wm::Ok(to_json(g_afb_instance->wmgr.controller->sprops));
 614         if (ret.is_err())
 615         {
 616             afb_req_fail(req, "failed", ret.unwrap_err());
 617             return;
 618         }
 619
 620         afb_req_success(req, ret.unwrap(), "success");
 621     }
 622     catch (std::exception &e)
 623     {
 624         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_surfaces: %s", e.what());
 625         return;
 626     } */
 627 }
 628
 629 void windowmanager_debug_terminate(afb_req req) noexcept
 630 {
 631     std::lock_guard<std::mutex> guard(binding_m);
 632
 633     if (g_afb_instance == nullptr)
 634     {
 635         afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
 636         return;
 637     }
 638
 639     try
 640     {
 641
 642         if (getenv("WINMAN_DEBUG_TERMINATE") != nullptr)
 643         {
 644             raise(SIGKILL); // afb-daemon kills it's pgroup using TERM, which
 645                             // doesn't play well with perf
 646         }
 647
 648         afb_req_success(req, NULL, "success");
 649     }
 650     catch (std::exception &e)
 651     {
 652         afb_req_fail_f(req, "failed", "Uncaught exception while calling debug_terminate: %s", e.what());
 653         return;
 654     }
 655 }
 656
 657 const struct afb_verb_v2 windowmanager_verbs[] = {
 658     {"requestSurface", windowmanager_requestsurface, nullptr, nullptr, AFB_SESSION_NONE},
 659     {"requestSurfaceXdg", windowmanager_requestsurfacexdg, nullptr, nullptr, AFB_SESSION_NONE},
 660     {"setRole", windowmanager_setrole, nullptr, nullptr, AFB_SESSION_NONE},
 661     {"activateWindow", windowmanager_activatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 662     {"deactivateWindow", windowmanager_deactivatewindow, nullptr, nullptr, AFB_SESSION_NONE},
 663     {"endDraw", windowmanager_enddraw, nullptr, nullptr, AFB_SESSION_NONE},
 664     {"getDisplayInfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 665     {"getAreaInfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_NONE},
 666     {"wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE},
 667     {"list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE},
 668     {"ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE},
 669     {"debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE},
 670     {"debug_layers", windowmanager_debug_layers, nullptr, nullptr, AFB_SESSION_NONE},
 671     {"debug_surfaces", windowmanager_debug_surfaces, nullptr, nullptr, AFB_SESSION_NONE},
 672     {"debug_terminate", windowmanager_debug_terminate, nullptr, nullptr, AFB_SESSION_NONE},
 673     {}};
 674
 675 extern "C" const struct afb_binding_v2 afbBindingV2 = {
 676     "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};