src/appcore.c

   1 /*
   2  * Copyright (c) 2000 - 2016 Samsung Electronics Co., Ltd. All rights reserved.
   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
  18 #define _GNU_SOURCE
  19
  20 #include <errno.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <sys/types.h>
  24 #include <unistd.h>
  25 #include <malloc.h>
  26 #include <locale.h>
  27 #include <linux/limits.h>
  28 #include <glib.h>
  29 #include <sys/time.h>
  30 #include <dlfcn.h>
  31 #include <vconf.h>
  32 #include <aul.h>
  33 #include <tzplatform_config.h>
  34 #include <bundle_internal.h>
  35 #include "appcore-internal.h"
  36
  37 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
  38 #include <gio/gio.h>
  39
  40 #define RESOURCED_FREEZER_PATH "/Org/Tizen/Resourced/Freezer"
  41 #define RESOURCED_FREEZER_INTERFACE "org.tizen.resourced.freezer"
  42 #define RESOURCED_FREEZER_SIGNAL "FreezerState"
  43 #endif
  44
  45 #define SQLITE_FLUSH_MAX                (1024*1024)
  46
  47 #define PKGNAME_MAX 256
  48 #define PATH_APP_ROOT tzplatform_getenv(TZ_USER_APP)
  49 #define PATH_SYS_RO_APP_ROOT tzplatform_getenv(TZ_SYS_RO_APP)
  50 #define PATH_SYS_RW_APP_ROOT tzplatform_getenv(TZ_SYS_RW_APP)
  51 #define PATH_RES "/res"
  52 #define PATH_LOCALE "/locale"
  53
  54 static struct appcore core;
  55 static pid_t _pid;
  56
  57 static enum appcore_event to_ae[SE_MAX] = {
  58         APPCORE_EVENT_UNKNOWN,  /* SE_UNKNOWN */
  59         APPCORE_EVENT_LOW_MEMORY,       /* SE_LOWMEM */
  60         APPCORE_EVENT_LOW_BATTERY,      /* SE_LOWBAT */
  61         APPCORE_EVENT_LANG_CHANGE,      /* SE_LANGCGH */
  62         APPCORE_EVENT_REGION_CHANGE,
  63         APPCORE_EVENT_SUSPENDED_STATE_CHANGE,
  64 };
  65
  66 static int appcore_event_initialized[SE_MAX] = {0,};
  67
  68 enum cb_type {                  /* callback */
  69         _CB_NONE,
  70         _CB_SYSNOTI,
  71         _CB_APPNOTI,
  72         _CB_VCONF,
  73 };
  74
  75 struct evt_ops {
  76         enum cb_type type;
  77         union {
  78                 enum appcore_event sys;
  79                 enum app_event app;
  80                 const char *vkey;
  81         } key;
  82
  83         int (*cb_pre) (void *);
  84         int (*cb) (void *);
  85         int (*cb_post) (void *);
  86
  87         int (*vcb_pre) (void *, void *);
  88         int (*vcb) (void *, void *);
  89         int (*vcb_post) (void *, void *);
  90 };
  91
  92 struct open_s {
  93         int (*callback) (void *);
  94         void *cbdata;
  95 };
  96
  97 static struct open_s open;
  98
  99 static int __app_terminate(void *data);
 100 static int __app_resume(void *data);
 101 static int __app_reset(void *data, bundle *k);
 102
 103 static int __sys_lowmem_post(void *data, void *evt);
 104 static int __sys_lowmem(void *data, void *evt);
 105 static int __sys_lowbatt(void *data, void *evt);
 106 static int __sys_langchg_pre(void *data, void *evt);
 107 static int __sys_langchg(void *data, void *evt);
 108 static int __sys_regionchg_pre(void *data, void *evt);
 109 static int __sys_regionchg(void *data, void *evt);
 110 extern void aul_finalize();
 111
 112
 113 static struct evt_ops evtops[] = {
 114         {
 115          .type = _CB_VCONF,
 116          .key.vkey = VCONFKEY_SYSMAN_LOW_MEMORY,
 117          .vcb_post = __sys_lowmem_post,
 118          .vcb = __sys_lowmem,
 119          },
 120         {
 121          .type = _CB_VCONF,
 122          .key.vkey = VCONFKEY_SYSMAN_BATTERY_STATUS_LOW,
 123          .vcb = __sys_lowbatt,
 124          },
 125         {
 126          .type = _CB_VCONF,
 127          .key.vkey = VCONFKEY_LANGSET,
 128          .vcb_pre = __sys_langchg_pre,
 129          .vcb = __sys_langchg,
 130          },
 131         {
 132          .type = _CB_VCONF,
 133          .key.vkey = VCONFKEY_REGIONFORMAT,
 134          .vcb_pre = __sys_regionchg_pre,
 135          .vcb = __sys_regionchg,
 136          },
 137         {
 138          .type = _CB_VCONF,
 139          .key.vkey = VCONFKEY_REGIONFORMAT_TIME1224,
 140          .vcb = __sys_regionchg,
 141          },
 142 };
 143
 144 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 145 static GDBusConnection *bus = NULL;
 146 static guint __suspend_dbus_handler_initialized = 0;
 147 #endif
 148
 149 static int __get_dir_name(char *dirname)
 150 {
 151         char pkg_name[PKGNAME_MAX];
 152         int r;
 153         int pid;
 154
 155         pid = getpid();
 156         if (pid < 0)
 157                 return -1;
 158
 159         if (aul_app_get_pkgname_bypid(pid, pkg_name, PKGNAME_MAX) != AUL_R_OK)
 160                 return -1;
 161
 162         r = snprintf(dirname, PATH_MAX, "%s/%s" PATH_RES PATH_LOCALE,
 163                         PATH_APP_ROOT, pkg_name);
 164         if (r < 0)
 165                 return -1;
 166         if (access(dirname, R_OK) == 0)
 167                 return 0;
 168         r = snprintf(dirname, PATH_MAX, "%s/%s" PATH_RES PATH_LOCALE,
 169                         PATH_SYS_RO_APP_ROOT, pkg_name);
 170         if (r < 0)
 171                 return -1;
 172         if (access(dirname, R_OK) == 0)
 173                 return 0;
 174         r = snprintf(dirname, PATH_MAX, "%s/%s" PATH_RES PATH_LOCALE,
 175                         PATH_SYS_RW_APP_ROOT, pkg_name);
 176         if (r < 0)
 177                 return -1;
 178
 179         return 0;
 180 }
 181
 182 static int __app_terminate(void *data)
 183 {
 184         struct appcore *ac = data;
 185
 186         _retv_if(ac == NULL || ac->ops == NULL, -1);
 187         _retv_if(ac->ops->cb_app == NULL, 0);
 188
 189         ac->ops->cb_app(AE_TERMINATE, ac->ops->data, NULL);
 190
 191         return 0;
 192 }
 193
 194 static int __bgapp_terminate(void *data)
 195 {
 196         struct appcore *ac = data;
 197
 198         _retv_if(ac == NULL || ac->ops == NULL, -1);
 199         _retv_if(ac->ops->cb_app == NULL, 0);
 200
 201         ac->ops->cb_app(AE_TERMINATE_BGAPP, ac->ops->data, NULL);
 202
 203         return 0;
 204 }
 205
 206 static gboolean __prt_ltime(gpointer data)
 207 {
 208         int msec;
 209
 210         msec = appcore_measure_time_from(NULL);
 211         if (msec)
 212                 _DBG("[APP %d] first idle after reset: %d msec", _pid, msec);
 213
 214         return FALSE;
 215 }
 216
 217 static int __app_reset(void *data, bundle * k)
 218 {
 219         struct appcore *ac = data;
 220         _retv_if(ac == NULL || ac->ops == NULL, -1);
 221         _retv_if(ac->ops->cb_app == NULL, 0);
 222
 223         g_idle_add(__prt_ltime, ac);
 224
 225         ac->ops->cb_app(AE_RESET, ac->ops->data, k);
 226
 227         return 0;
 228 }
 229
 230 static int __app_resume(void *data)
 231 {
 232         struct appcore *ac = data;
 233         _retv_if(ac == NULL || ac->ops == NULL, -1);
 234         _retv_if(ac->ops->cb_app == NULL, 0);
 235
 236         ac->ops->cb_app(AE_RAISE, ac->ops->data, NULL);
 237         return 0;
 238 }
 239
 240 static int __app_pause(void *data)
 241 {
 242         struct appcore *ac = data;
 243         _retv_if(ac == NULL || ac->ops == NULL, -1);
 244         _retv_if(ac->ops->cb_app == NULL, 0);
 245
 246         ac->ops->cb_app(AE_LOWER, ac->ops->data, NULL);
 247         return 0;
 248 }
 249
 250 static int __sys_do_default(struct appcore *ac, enum sys_event event)
 251 {
 252         int r;
 253
 254         switch (event) {
 255         case SE_LOWBAT:
 256                 /*r = __def_lowbatt(ac);*/
 257                 r = 0;
 258                 break;
 259         default:
 260                 r = 0;
 261                 break;
 262         };
 263
 264         return r;
 265 }
 266
 267 static int __sys_do(struct appcore *ac, void *event_info, enum sys_event event)
 268 {
 269         struct sys_op *op;
 270
 271         _retv_if(ac == NULL || event >= SE_MAX, -1);
 272
 273         op = &ac->sops[event];
 274
 275         if (op->func == NULL)
 276                 return __sys_do_default(ac, event);
 277
 278         return op->func(event_info, op->data);
 279 }
 280
 281 static int __sys_lowmem_post(void *data, void *evt)
 282 {
 283         keynode_t *key = evt;
 284         int val;
 285
 286         val = vconf_keynode_get_int(key);
 287
 288         if (val >= VCONFKEY_SYSMAN_LOW_MEMORY_SOFT_WARNING)     {
 289 #if defined(MEMORY_FLUSH_ACTIVATE)
 290                 struct appcore *ac = data;
 291                 ac->ops->cb_app(AE_LOWMEM_POST, ac->ops->data, NULL);
 292 #else
 293                 malloc_trim(0);
 294 #endif
 295         }
 296         return 0;
 297 }
 298
 299 static int __sys_lowmem(void *data, void *evt)
 300 {
 301         keynode_t *key = evt;
 302         int val;
 303
 304         val = vconf_keynode_get_int(key);
 305
 306         if (val >= VCONFKEY_SYSMAN_LOW_MEMORY_SOFT_WARNING)
 307                 return __sys_do(data, (void *)&val, SE_LOWMEM);
 308
 309         return 0;
 310 }
 311
 312 static int __sys_lowbatt(void *data, void *evt)
 313 {
 314         keynode_t *key = evt;
 315         int val;
 316
 317         val = vconf_keynode_get_int(key);
 318
 319         /* VCONFKEY_SYSMAN_BAT_CRITICAL_LOW or VCONFKEY_SYSMAN_POWER_OFF */
 320         if (val <= VCONFKEY_SYSMAN_BAT_CRITICAL_LOW)
 321                 return __sys_do(data, (void *)&val, SE_LOWBAT);
 322
 323         return 0;
 324 }
 325
 326 static int __sys_langchg_pre(void *data, void *evt)
 327 {
 328         update_lang();
 329         return 0;
 330 }
 331
 332 static int __sys_langchg(void *data, void *evt)
 333 {
 334         keynode_t *key = evt;
 335         char *val;
 336
 337         val = vconf_keynode_get_str(key);
 338
 339         return __sys_do(data, (void *)val, SE_LANGCHG);
 340 }
 341
 342 static int __sys_regionchg_pre(void *data, void *evt)
 343 {
 344         update_region();
 345         return 0;
 346 }
 347
 348 static int __sys_regionchg(void *data, void *evt)
 349 {
 350         keynode_t *key = evt;
 351         char *val = NULL;
 352         const char *name;
 353
 354         name = vconf_keynode_get_name(key);
 355         if (!strcmp(name, VCONFKEY_REGIONFORMAT))
 356                 val = vconf_keynode_get_str(key);
 357
 358         return __sys_do(data, (void *)val, SE_REGIONCHG);
 359 }
 360
 361 static void __vconf_do(struct evt_ops *eo, keynode_t * key, void *data)
 362 {
 363         _ret_if(eo == NULL);
 364
 365         if (eo->vcb_pre)
 366                 eo->vcb_pre(data, key);
 367
 368         if (eo->vcb)
 369                 eo->vcb(data, key);
 370
 371         if (eo->vcb_post)
 372                 eo->vcb_post(data, key);
 373 }
 374
 375 static void __vconf_cb(keynode_t *key, void *data)
 376 {
 377         int i;
 378         const char *name;
 379
 380         name = vconf_keynode_get_name(key);
 381         _ret_if(name == NULL);
 382
 383         _DBG("[APP %d] vconf changed: %s", _pid, name);
 384
 385         for (i = 0; i < sizeof(evtops) / sizeof(evtops[0]); i++) {
 386                 struct evt_ops *eo = &evtops[i];
 387
 388                 switch (eo->type) {
 389                 case _CB_VCONF:
 390                         if (!strcmp(name, eo->key.vkey))
 391                                 __vconf_do(eo, key, data);
 392                         break;
 393                 default:
 394                         /* do nothing */
 395                         break;
 396                 }
 397         }
 398 }
 399
 400 static int __add_vconf(struct appcore *ac, enum sys_event se)
 401 {
 402         int r;
 403
 404         switch (se) {
 405         case SE_LOWMEM:
 406                 r = vconf_notify_key_changed(VCONFKEY_SYSMAN_LOW_MEMORY, __vconf_cb, ac);
 407                 break;
 408         case SE_LOWBAT:
 409                 r = vconf_notify_key_changed(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, __vconf_cb, ac);
 410                 break;
 411         case SE_LANGCHG:
 412                 r = vconf_notify_key_changed(VCONFKEY_LANGSET, __vconf_cb, ac);
 413                 break;
 414         case SE_REGIONCHG:
 415                 r = vconf_notify_key_changed(VCONFKEY_REGIONFORMAT, __vconf_cb, ac);
 416                 if (r < 0)
 417                         break;
 418
 419                 r = vconf_notify_key_changed(VCONFKEY_REGIONFORMAT_TIME1224, __vconf_cb, ac);
 420                 break;
 421         default:
 422                 r = -1;
 423                 break;
 424         }
 425
 426         return r;
 427 }
 428
 429 static int __del_vconf(enum sys_event se)
 430 {
 431         int r;
 432
 433         switch (se) {
 434         case SE_LOWMEM:
 435                 r = vconf_ignore_key_changed(VCONFKEY_SYSMAN_LOW_MEMORY, __vconf_cb);
 436                 break;
 437         case SE_LOWBAT:
 438                 r = vconf_ignore_key_changed(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, __vconf_cb);
 439                 break;
 440         case SE_LANGCHG:
 441                 r = vconf_ignore_key_changed(VCONFKEY_LANGSET, __vconf_cb);
 442                 break;
 443         case SE_REGIONCHG:
 444                 r = vconf_ignore_key_changed(VCONFKEY_REGIONFORMAT, __vconf_cb);
 445                 if (r < 0)
 446                         break;
 447
 448                 r = vconf_ignore_key_changed(VCONFKEY_REGIONFORMAT_TIME1224, __vconf_cb);
 449                 break;
 450         default:
 451                 r = -1;
 452                 break;
 453         }
 454
 455         return r;
 456 }
 457
 458 static int __del_vconf_list(void)
 459 {
 460         int r;
 461         enum sys_event se;
 462
 463         for (se = SE_LOWMEM; se < SE_MAX; se++) {
 464                 if (appcore_event_initialized[se]) {
 465                         r = __del_vconf(se);
 466                         if (r < 0)
 467                                 _ERR("Delete vconf callback failed");
 468                         else
 469                                 appcore_event_initialized[se] = 0;
 470                 }
 471         }
 472
 473         return 0;
 474 }
 475
 476 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 477 static gboolean __flush_memory(gpointer data)
 478 {
 479         int suspend = APPCORE_SUSPENDED_STATE_WILL_ENTER_SUSPEND;
 480         struct appcore *ac = (struct appcore *)data;
 481
 482         appcore_flush_memory();
 483
 484         if (!ac)
 485                 return FALSE;
 486
 487         ac->tid = 0;
 488
 489         if (!ac->allowed_bg && !ac->suspended_state) {
 490                 _DBG("[__SUSPEND__] flush case");
 491                 __sys_do(ac, &suspend, SE_SUSPENDED_STATE);
 492                 ac->suspended_state = true;
 493         }
 494
 495         return FALSE;
 496 }
 497
 498 static void __add_suspend_timer(struct appcore *ac)
 499 {
 500         ac->tid = g_timeout_add_seconds(5, __flush_memory, ac);
 501 }
 502
 503 static void __remove_suspend_timer(struct appcore *ac)
 504 {
 505         if (ac->tid > 0) {
 506                 g_source_remove(ac->tid);
 507                 ac->tid = 0;
 508         }
 509 }
 510 #endif
 511
 512 static int __aul_handler(aul_type type, bundle *b, void *data)
 513 {
 514         int ret;
 515         const char *tep_path = NULL;
 516 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 517         const char *bg = NULL;
 518         struct appcore *ac = data;
 519 #endif
 520
 521         switch (type) {
 522         case AUL_START:
 523                 _DBG("[APP %d]     AUL event: AUL_START", _pid);
 524                 tep_path = bundle_get_val(b, AUL_TEP_PATH);
 525                 if (tep_path) {
 526                         ret = aul_check_tep_mount(tep_path);
 527                         if (ret == -1) {
 528                                 _ERR("mount request not completed within 1 sec");
 529                                 exit(-1);
 530                         }
 531                 }
 532
 533 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 534                 bg = bundle_get_val(b, AUL_K_ALLOWED_BG);
 535                 if (bg && strncmp(bg, "ALLOWED_BG", strlen("ALLOWED_BG")) == 0) {
 536                         _DBG("[__SUSPEND__] allowed background");
 537                         ac->allowed_bg = true;
 538                         __remove_suspend_timer(data);
 539                 }
 540 #endif
 541
 542                 __app_reset(data, b);
 543                 break;
 544         case AUL_RESUME:
 545                 _DBG("[APP %d]     AUL event: AUL_RESUME", _pid);
 546 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 547                 bg = bundle_get_val(b, AUL_K_ALLOWED_BG);
 548                 if (bg && strncmp(bg, "ALLOWED_BG", strlen("ALLOWED_BG")) == 0) {
 549                         _DBG("[__SUSPEND__] allowed background");
 550                         ac->allowed_bg = true;
 551                         __remove_suspend_timer(data);
 552                 }
 553 #endif
 554
 555                 if (open.callback) {
 556                         ret = open.callback(open.cbdata);
 557                         if (ret == 0)
 558                                 __app_resume(data);
 559                 } else {
 560                         __app_resume(data);
 561                 }
 562                 break;
 563         case AUL_TERMINATE:
 564                 _DBG("[APP %d]     AUL event: AUL_TERMINATE", _pid);
 565 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 566                 if (!ac->allowed_bg)
 567                         __remove_suspend_timer(data);
 568 #endif
 569
 570                 __app_terminate(data);
 571                 break;
 572         case AUL_TERMINATE_BGAPP:
 573                 _DBG("[APP %d]     AUL event: AUL_TERMINATE_BGAPP", _pid);
 574 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 575                 if (!ac->allowed_bg)
 576                         __remove_suspend_timer(data);
 577 #endif
 578
 579                 __bgapp_terminate(data);
 580                 break;
 581         case AUL_PAUSE:
 582                 _DBG("[APP %d]     AUL event: AUL_PAUSE", _pid);
 583                 __app_pause(data);
 584                 break;
 585 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 586         case AUL_WAKE:
 587                 _DBG("[APP %d]     AUL event: AUL_WAKE", _pid);
 588                 if (!ac->allowed_bg && ac->suspended_state) {
 589                         int suspend = APPCORE_SUSPENDED_STATE_DID_EXIT_FROM_SUSPEND;
 590                         __remove_suspend_timer(data);
 591                         __sys_do(ac, &suspend, SE_SUSPENDED_STATE);
 592                         ac->suspended_state = false;
 593                 }
 594                 break;
 595         case AUL_SUSPEND:
 596                 _DBG("[APP %d]     AUL event: AUL_SUSPEND", _pid);
 597                 if (!ac->allowed_bg && !ac->suspended_state) {
 598                         __remove_suspend_timer(data);
 599                         __flush_memory((gpointer)ac);
 600                 }
 601                 break;
 602 #endif
 603         default:
 604                 _DBG("[APP %d]     AUL event: %d", _pid, type);
 605                 /* do nothing */
 606                 break;
 607         }
 608
 609         return 0;
 610 }
 611
 612
 613 static void __clear(struct appcore *ac)
 614 {
 615         memset(ac, 0, sizeof(struct appcore));
 616 }
 617
 618 EXPORT_API void appcore_get_app_core(struct appcore **ac)
 619 {
 620         *ac = &core;
 621 }
 622
 623 EXPORT_API int appcore_set_open_cb(int (*cb) (void *),
 624                                        void *data)
 625 {
 626         open.callback = cb;
 627         open.cbdata = data;
 628
 629         return 0;
 630 }
 631
 632 EXPORT_API int appcore_set_event_callback(enum appcore_event event,
 633                                           int (*cb) (void *, void *), void *data)
 634 {
 635         struct appcore *ac = &core;
 636         struct sys_op *op;
 637         enum sys_event se;
 638         int r = 0;
 639
 640         for (se = SE_UNKNOWN; se < SE_MAX; se++) {
 641                 if (event == to_ae[se])
 642                         break;
 643         }
 644
 645         if (se == SE_UNKNOWN || se >= SE_MAX) {
 646                 _ERR("Unregistered event");
 647                 errno = EINVAL;
 648                 return -1;
 649         }
 650
 651         op = &ac->sops[se];
 652
 653         op->func = cb;
 654         op->data = data;
 655
 656         if (op->func && !appcore_event_initialized[se]) {
 657                 r = __add_vconf(ac, se);
 658                 if (r < 0)
 659                         _ERR("Add vconf callback failed");
 660                 else
 661                         appcore_event_initialized[se] = 1;
 662         } else if (!op->func && appcore_event_initialized[se]) {
 663                 r = __del_vconf(se);
 664                 if (r < 0)
 665                         _ERR("Delete vconf callback failed");
 666                 else
 667                         appcore_event_initialized[se] = 0;
 668         }
 669
 670         return 0;
 671 }
 672
 673 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 674 static gboolean __init_suspend(gpointer data)
 675 {
 676         int r;
 677
 678         r = _appcore_init_suspend_dbus_handler(&core);
 679         if (r == -1) {
 680                 _ERR("Initailzing suspended state handler failed");
 681         }
 682
 683         return FALSE;
 684 }
 685 #endif
 686
 687 EXPORT_API int appcore_init(const char *name, const struct ui_ops *ops,
 688                             int argc, char **argv)
 689 {
 690         int r;
 691         char dirname[PATH_MAX];
 692
 693         if (core.state != 0) {
 694                 _ERR("Already in use");
 695                 errno = EALREADY;
 696                 return -1;
 697         }
 698
 699         if (ops == NULL || ops->cb_app == NULL) {
 700                 _ERR("ops or callback function is null");
 701                 errno = EINVAL;
 702                 return -1;
 703         }
 704
 705         r = __get_dir_name(dirname);
 706         r = set_i18n(name, dirname);
 707         _retv_if(r == -1, -1);
 708
 709         r = aul_launch_init(__aul_handler, &core);
 710         if (r < 0) {
 711                 _ERR("Aul init failed: %d", r);
 712                 goto err;
 713         }
 714
 715         r = aul_launch_argv_handler(argc, argv);
 716         if (r < 0) {
 717                 _ERR("Aul argv handler failed: %d", r);
 718                 goto err;
 719         }
 720
 721         core.ops = ops;
 722         core.state = 1;         /* TODO: use enum value */
 723         core.tid = 0;
 724         core.suspended_state = false;
 725         core.allowed_bg = false;
 726
 727         _pid = getpid();
 728
 729 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 730         g_idle_add(__init_suspend, NULL);
 731 #endif
 732
 733         return 0;
 734  err:
 735         __del_vconf_list();
 736         __clear(&core);
 737         return -1;
 738 }
 739
 740 EXPORT_API void appcore_exit(void)
 741 {
 742         if (core.state) {
 743                 __del_vconf_list();
 744                 __clear(&core);
 745 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 746                 __remove_suspend_timer(&core);
 747 #endif
 748         }
 749         aul_finalize();
 750 }
 751
 752 EXPORT_API int appcore_flush_memory(void)
 753 {
 754         int (*flush_fn) (int);
 755
 756         struct appcore *ac = &core;
 757
 758         if (!core.state) {
 759                 _ERR("Appcore not initialized");
 760                 return -1;
 761         }
 762
 763         _DBG("[APP %d] Flushing memory ...", _pid);
 764
 765         if (ac->ops->cb_app)
 766                 ac->ops->cb_app(AE_MEM_FLUSH, ac->ops->data, NULL);
 767
 768         flush_fn = dlsym(RTLD_DEFAULT, "sqlite3_release_memory");
 769         if (flush_fn)
 770                 flush_fn(SQLITE_FLUSH_MAX);
 771
 772         malloc_trim(0);
 773         /*
 774         *Disabled - the impact of stack_trim() is unclear
 775         *stack_trim();
 776         */
 777
 778         _DBG("[APP %d] Flushing memory DONE", _pid);
 779
 780         return 0;
 781 }
 782
 783 #ifdef _APPFW_FEATURE_BACKGROUND_MANAGEMENT
 784 static void __suspend_dbus_signal_handler(GDBusConnection *connection,
 785                                         const gchar *sender_name,
 786                                         const gchar *object_path,
 787                                         const gchar *interface_name,
 788                                         const gchar *signal_name,
 789                                         GVariant *parameters,
 790                                         gpointer user_data)
 791 {
 792         struct appcore *ac = (struct appcore *)user_data;
 793         gint suspend = APPCORE_SUSPENDED_STATE_DID_EXIT_FROM_SUSPEND;
 794         gint pid;
 795         gint status;
 796
 797         if (g_strcmp0(signal_name, RESOURCED_FREEZER_SIGNAL) == 0) {
 798                 g_variant_get(parameters, "(ii)", &status, &pid);
 799                 if (pid == getpid() && status == 0) { /* thawed */
 800                         if (ac && !ac->allowed_bg && ac->suspended_state) {
 801                                 __remove_suspend_timer(ac);
 802                                 __sys_do(ac, &suspend, SE_SUSPENDED_STATE);
 803                                 ac->suspended_state = false;
 804                                 __add_suspend_timer(ac);
 805                         }
 806                 }
 807         }
 808 }
 809
 810 int _appcore_init_suspend_dbus_handler(void *data)
 811 {
 812         GError *err = NULL;
 813
 814         if (__suspend_dbus_handler_initialized)
 815                 return 0;
 816
 817         if (!bus) {
 818                 bus = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &err);
 819                 if (!bus) {
 820                         _ERR("Failed to connect to the D-BUS daemon: %s",
 821                                                 err->message);
 822                         g_error_free(err);
 823                         return -1;
 824                 }
 825         }
 826
 827         __suspend_dbus_handler_initialized = g_dbus_connection_signal_subscribe(
 828                                                 bus,
 829                                                 NULL,
 830                                                 RESOURCED_FREEZER_INTERFACE,
 831                                                 RESOURCED_FREEZER_SIGNAL,
 832                                                 RESOURCED_FREEZER_PATH,
 833                                                 NULL,
 834                                                 G_DBUS_SIGNAL_FLAGS_NONE,
 835                                                 __suspend_dbus_signal_handler,
 836                                                 data,
 837                                                 NULL);
 838         if (__suspend_dbus_handler_initialized == 0) {
 839                 _ERR("g_dbus_connection_signal_subscribe() is failed.");
 840                 return -1;
 841         }
 842
 843         _DBG("[__SUSPEND__] suspend signal initialized");
 844
 845         return 0;
 846 }
 847 #endif