src/mm_camcorder_resource.c

   1 /*
   2  * libmm-camcorder
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include "mm_camcorder_internal.h"
  21 #include "mm_camcorder_resource.h"
  22 #include <murphy/common/glib-glue.h>
  23
  24 #define MRP_APP_CLASS_FOR_CAMCORDER   "media"
  25 #define MRP_RESOURCE_TYPE_MANDATORY TRUE
  26 #define MRP_RESOURCE_TYPE_EXCLUSIVE FALSE
  27
  28 const char* mm_camcorder_resource_str[MM_CAMCORDER_RESOURCE_MAX] = {
  29         "camera",
  30         "video_overlay"
  31 };
  32
  33 #define MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(x_camcorder_resource_manager) \
  34 do { \
  35         if (!x_camcorder_resource_manager) { \
  36                 _mmcam_dbg_err("no resource manager instance"); \
  37                 return MM_ERROR_INVALID_ARGUMENT; \
  38         } \
  39 } while (0);
  40
  41 #define MMCAMCORDER_CHECK_CONNECTION_RESOURCE_MANAGER(x_camcorder_resource_manager) \
  42 do { \
  43         if (!x_camcorder_resource_manager) { \
  44                 _mmcam_dbg_err("no resource manager instance"); \
  45                 return MM_ERROR_INVALID_ARGUMENT; \
  46         } else { \
  47                 if (!x_camcorder_resource_manager->is_connected) { \
  48                         _mmcam_dbg_err("not connected to resource server yet"); \
  49                         return MM_ERROR_RESOURCE_NOT_INITIALIZED; \
  50                 } \
  51         } \
  52 } while (0);
  53
  54 static char *__mmcamcorder_resource_state_to_str(mrp_res_resource_state_t st)
  55 {
  56         char *state = "unknown";
  57         switch (st) {
  58         case MRP_RES_RESOURCE_ACQUIRED:
  59                 state = "acquired";
  60                 break;
  61         case MRP_RES_RESOURCE_LOST:
  62                 state = "lost";
  63                 break;
  64         case MRP_RES_RESOURCE_AVAILABLE:
  65                 state = "available";
  66                 break;
  67         case MRP_RES_RESOURCE_PENDING:
  68                 state = "pending";
  69                 break;
  70         case MRP_RES_RESOURCE_ABOUT_TO_LOOSE:
  71                 state = "about to loose";
  72                 break;
  73         }
  74         return state;
  75 }
  76
  77 static void __mmcamcorder_resource_state_callback(mrp_res_context_t *context, mrp_res_error_t err, void *user_data)
  78 {
  79         int i = 0;
  80         const mrp_res_resource_set_t *rset;
  81         mrp_res_resource_t *resource;
  82         mmf_camcorder_t* camcorder = NULL;
  83
  84         camcorder = (mmf_camcorder_t*)user_data;
  85
  86         mmf_return_if_fail((MMHandleType)camcorder);
  87         mmf_return_if_fail(context);
  88
  89         _mmcam_dbg_warn("enter - state %d", context->state);
  90
  91         _MMCAMCORDER_LOCK_RESOURCE(camcorder);
  92
  93         switch (context->state) {
  94         case MRP_RES_CONNECTED:
  95                 _mmcam_dbg_warn(" - connected to Murphy");
  96                 if ((rset = mrp_res_list_resources(context)) != NULL) {
  97                         mrp_res_string_array_t *resource_names;
  98                         resource_names = mrp_res_list_resource_names(rset);
  99                         if (!resource_names) {
 100                                 _mmcam_dbg_err(" - no resources available");
 101                                 _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 102                                 return;
 103                         }
 104                         for (i = 0; i < resource_names->num_strings; i++) {
 105                                 resource = mrp_res_get_resource_by_name(rset, resource_names->strings[i]);
 106                                 if (resource)
 107                                         _mmcam_dbg_warn(" - available resource: %s", resource->name);
 108                         }
 109                         mrp_res_free_string_array(resource_names);
 110                 }
 111                 camcorder->resource_manager.is_connected = TRUE;
 112                 _MMCAMCORDER_RESOURCE_SIGNAL(camcorder);
 113                 break;
 114         case MRP_RES_DISCONNECTED:
 115                 _mmcam_dbg_err(" - disconnected from Murphy : stop camera");
 116
 117                 if (camcorder->resource_manager.rset) {
 118                         mrp_res_delete_resource_set(camcorder->resource_manager.rset);
 119                         camcorder->resource_manager.rset = NULL;
 120                 }
 121
 122                 if (camcorder->resource_manager.context) {
 123                         mrp_res_destroy(camcorder->resource_manager.context);
 124                         camcorder->resource_manager.context = NULL;
 125                         camcorder->resource_manager.is_connected = FALSE;
 126                 }
 127
 128                 _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 129
 130                 _MMCAMCORDER_LOCK_ASM(camcorder);
 131
 132                 /* Stop the camera */
 133                 __mmcamcorder_force_stop(camcorder, _MMCAMCORDER_STATE_CHANGE_BY_RM);
 134
 135                 _MMCAMCORDER_UNLOCK_ASM(camcorder);
 136
 137                 _MMCAMCORDER_LOCK_RESOURCE(camcorder);
 138                 break;
 139         }
 140
 141         _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 142
 143         _mmcam_dbg_warn("leave");
 144
 145         return;
 146 }
 147
 148
 149 static void __mmcamcorder_resource_set_state_callback(mrp_res_context_t *cx, const mrp_res_resource_set_t *rs, void *user_data)
 150 {
 151         int i = 0;
 152         mmf_camcorder_t *camcorder = (mmf_camcorder_t *)user_data;
 153         mrp_res_resource_t *res;
 154
 155         mmf_return_if_fail((MMHandleType)camcorder);
 156
 157         _MMCAMCORDER_LOCK_RESOURCE(camcorder);
 158
 159         if (!mrp_res_equal_resource_set(rs, camcorder->resource_manager.rset)) {
 160                 _mmcam_dbg_warn("- resource set(%p) is not same as this camcorder handle's(%p)", rs, camcorder->resource_manager.rset);
 161                 _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 162                 return;
 163         }
 164
 165         _mmcam_dbg_log(" - resource set state of camcorder(%p) is changed to [%s]",
 166                 camcorder, __mmcamcorder_resource_state_to_str(rs->state));
 167
 168         for (i = 0; i < MM_CAMCORDER_RESOURCE_MAX; i++) {
 169                 res = mrp_res_get_resource_by_name(rs, mm_camcorder_resource_str[i]);
 170                 if (res == NULL) {
 171                         _mmcam_dbg_warn(" -- %s not present in resource set", mm_camcorder_resource_str[i]);
 172                 } else {
 173                         _mmcam_dbg_warn(" -- resource name [%s] -> [%s]",
 174                                 res->name, __mmcamcorder_resource_state_to_str(res->state));
 175
 176                         if (res->state == MRP_RES_RESOURCE_ACQUIRED) {
 177                                 camcorder->resource_manager.acquire_remain--;
 178
 179                                 if (camcorder->resource_manager.acquire_remain <= 0) {
 180                                         _mmcam_dbg_warn("send signal - resource acquire done");
 181                                         _MMCAMCORDER_RESOURCE_SIGNAL(camcorder);
 182                                 } else {
 183                                         _mmcam_dbg_warn("remained acquire count %d",
 184                                                 camcorder->resource_manager.acquire_remain);
 185                                 }
 186                         } else if (res->state == MRP_RES_RESOURCE_LOST) {
 187                                 camcorder->resource_manager.acquire_remain++;
 188
 189                                 if (camcorder->resource_manager.acquire_remain >= camcorder->resource_manager.acquire_count) {
 190                                         _mmcam_dbg_warn("resource release done");
 191
 192                                         if (camcorder->state > MM_CAMCORDER_STATE_NULL) {
 193                                                 _mmcam_dbg_warn("send resource signal");
 194                                                 _MMCAMCORDER_RESOURCE_SIGNAL(camcorder);
 195                                         } else {
 196                                                 _mmcam_dbg_warn("skip resource signal - state %d", camcorder->state);
 197                                         }
 198                                 } else {
 199                                         _mmcam_dbg_warn("acquired %d, lost %d",
 200                                                 camcorder->resource_manager.acquire_count,
 201                                                 camcorder->resource_manager.acquire_remain);
 202                                 }
 203                         }
 204                 }
 205         }
 206
 207         mrp_res_delete_resource_set(camcorder->resource_manager.rset);
 208         camcorder->resource_manager.rset = mrp_res_copy_resource_set(rs);
 209
 210         _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 211
 212         return;
 213 }
 214
 215
 216 static void __mmcamcorder_resource_release_cb(mrp_res_context_t *cx, const mrp_res_resource_set_t *rs, void *user_data)
 217 {
 218         int i = 0;
 219         int current_state = MM_CAMCORDER_STATE_NONE;
 220         mmf_camcorder_t* camcorder = (mmf_camcorder_t*)user_data;
 221         mrp_res_resource_t *res;
 222
 223         mmf_return_if_fail((MMHandleType)camcorder);
 224
 225         current_state = _mmcamcorder_get_state((MMHandleType)camcorder);
 226         if (current_state <= MM_CAMCORDER_STATE_NONE ||
 227             current_state >= MM_CAMCORDER_STATE_NUM) {
 228                 _mmcam_dbg_err("Abnormal state. Or null handle. (%p, %d)", camcorder, current_state);
 229                 return;
 230         }
 231
 232         _mmcam_dbg_warn("enter");
 233
 234         _MMCAMCORDER_LOCK_RESOURCE(camcorder);
 235
 236         if (!mrp_res_equal_resource_set(rs, camcorder->resource_manager.rset)) {
 237                 _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 238                 _mmcam_dbg_warn("- resource set(%p) is not same as this camcorder handle's(%p)", rs, camcorder->resource_manager.rset);
 239                 return;
 240         }
 241
 242         /* set flag for resource release callback */
 243         camcorder->resource_release_cb_calling = TRUE;
 244
 245         _mmcam_dbg_log(" - resource set state of camcorder(%p) is changed to [%s]",
 246                 camcorder, __mmcamcorder_resource_state_to_str(rs->state));
 247
 248         for (i = 0; i < MM_CAMCORDER_RESOURCE_MAX; i++) {
 249                 res = mrp_res_get_resource_by_name(rs, mm_camcorder_resource_str[i]);
 250                 if (res == NULL) {
 251                         _mmcam_dbg_warn(" -- %s not present in resource set", mm_camcorder_resource_str[i]);
 252                 } else {
 253                         _mmcam_dbg_warn(" -- resource name [%s] -> [%s]", res->name, __mmcamcorder_resource_state_to_str(res->state));
 254                 }
 255         }
 256
 257         _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 258
 259         _MMCAMCORDER_LOCK_ASM(camcorder);
 260
 261         /* Stop the camera */
 262         __mmcamcorder_force_stop(camcorder, _MMCAMCORDER_STATE_CHANGE_BY_RM);
 263
 264         _MMCAMCORDER_UNLOCK_ASM(camcorder);
 265
 266         _MMCAMCORDER_LOCK_RESOURCE(camcorder);
 267
 268         /* restore flag for resource release callback */
 269         camcorder->resource_release_cb_calling = FALSE;
 270
 271         _MMCAMCORDER_UNLOCK_RESOURCE(camcorder);
 272
 273         _mmcam_dbg_warn("leave");
 274
 275         return;
 276 }
 277
 278 int _mmcamcorder_resource_create_resource_set(MMCamcorderResourceManager *resource_manager)
 279 {
 280         if (resource_manager->rset) {
 281                 _mmcam_dbg_warn(" - resource set was already created, delete it");
 282                 mrp_res_delete_resource_set(resource_manager->rset);
 283                 resource_manager->rset = NULL;
 284         }
 285
 286         resource_manager->rset = mrp_res_create_resource_set(resource_manager->context,
 287                 MRP_APP_CLASS_FOR_CAMCORDER, __mmcamcorder_resource_set_state_callback, (void*)resource_manager->user_data);
 288
 289         if (resource_manager->rset == NULL) {
 290                 _mmcam_dbg_err(" - could not create resource set");
 291                 return MM_ERROR_RESOURCE_INTERNAL;
 292         }
 293
 294         if (!mrp_res_set_autorelease(TRUE, resource_manager->rset))
 295                 _mmcam_dbg_warn(" - could not set autorelease flag!");
 296
 297         _mmcam_dbg_log("done");
 298
 299         return MM_ERROR_NONE;
 300 }
 301
 302 static int __mmcamcorder_resource_include_resource(MMCamcorderResourceManager *resource_manager, const char *resource_name)
 303 {
 304         mrp_res_resource_t *resource = NULL;
 305         resource = mrp_res_create_resource(resource_manager->rset,
 306                 resource_name,
 307                 MRP_RESOURCE_TYPE_MANDATORY,
 308                 MRP_RESOURCE_TYPE_EXCLUSIVE);
 309         if (resource == NULL) {
 310                 _mmcam_dbg_err(" - could not include resource[%s]", resource_name);
 311                 return MM_ERROR_RESOURCE_INTERNAL;
 312         }
 313
 314         resource_manager->acquire_count++;
 315         resource_manager->acquire_remain = resource_manager->acquire_count;
 316
 317         _mmcam_dbg_log(" - count[%d] include resource[%s]",
 318                 resource_manager->acquire_count, resource_name);
 319
 320         return MM_ERROR_NONE;
 321 }
 322
 323 static int __mmcamcorder_resource_set_release_cb(MMCamcorderResourceManager *resource_manager)
 324 {
 325         int ret = MM_ERROR_NONE;
 326         bool mrp_ret = FALSE;
 327
 328         if (resource_manager->rset) {
 329                 mrp_ret = mrp_res_set_release_callback(resource_manager->rset, __mmcamcorder_resource_release_cb, resource_manager->user_data);
 330                 if (!mrp_ret) {
 331                         _mmcam_dbg_err(" - could not set release callback");
 332                         ret = MM_ERROR_RESOURCE_INTERNAL;
 333                 }
 334         } else {
 335                 _mmcam_dbg_err(" - resource set is null");
 336                 ret = MM_ERROR_RESOURCE_INVALID_STATE;
 337         }
 338
 339         return ret;
 340 }
 341
 342 int _mmcamcorder_resource_manager_init(MMCamcorderResourceManager *resource_manager, void *user_data)
 343 {
 344         GMainContext *mrp_ctx = NULL;
 345         GMainLoop *mrp_loop = NULL;
 346
 347         MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(resource_manager);
 348
 349         _mmcam_dbg_warn("start");
 350
 351         mrp_ctx = g_main_context_new();
 352         if (!mrp_ctx) {
 353                 _mmcam_dbg_err("failed to get create glib context for mrp");
 354                 return MM_ERROR_RESOURCE_INTERNAL;
 355         }
 356
 357         mrp_loop = g_main_loop_new(mrp_ctx, TRUE);
 358
 359         g_main_context_unref(mrp_ctx);
 360         mrp_ctx = NULL;
 361
 362         if (!mrp_loop) {
 363                 _mmcam_dbg_err("failed to get create glib loop for mrp");
 364                 return MM_ERROR_RESOURCE_INTERNAL;
 365         }
 366
 367         resource_manager->mloop = mrp_mainloop_glib_get(mrp_loop);
 368
 369         g_main_loop_unref(mrp_loop);
 370         mrp_loop = NULL;
 371
 372         if (!resource_manager->mloop) {
 373                 _mmcam_dbg_err("failed to get mainloop for mrp");
 374                 return MM_ERROR_RESOURCE_INTERNAL;
 375         }
 376
 377         _mmcam_dbg_warn("mloop %p", resource_manager->mloop);
 378
 379         resource_manager->context = mrp_res_create(resource_manager->mloop, __mmcamcorder_resource_state_callback, user_data);
 380         if (!resource_manager->context) {
 381                 _mmcam_dbg_err("could not get context for mrp");
 382
 383                 mrp_mainloop_destroy(resource_manager->mloop);
 384                 resource_manager->mloop = NULL;
 385
 386                 return MM_ERROR_RESOURCE_INTERNAL;
 387         }
 388
 389         resource_manager->user_data = user_data;
 390
 391         _mmcam_dbg_log("done");
 392
 393         return MM_ERROR_NONE;
 394 }
 395
 396
 397 int _mmcamcorder_resource_wait_for_connection(MMCamcorderResourceManager *resource_manager, void *hcamcorder)
 398 {
 399         int ret = MM_ERROR_NONE;
 400
 401         mmf_return_val_if_fail(resource_manager && hcamcorder, MM_ERROR_CAMCORDER_NOT_INITIALIZED);
 402
 403         _MMCAMCORDER_LOCK_RESOURCE(hcamcorder);
 404
 405         if (resource_manager->is_connected == FALSE) {
 406                 gint64 end_time = 0;
 407
 408                 /* wait for resource manager connected */
 409                 _mmcam_dbg_warn("not connected. wait for signal...");
 410
 411                 end_time = g_get_monotonic_time() + (__MMCAMCORDER_RESOURCE_WAIT_TIME * G_TIME_SPAN_SECOND);
 412
 413                 if (_MMCAMCORDER_RESOURCE_WAIT_UNTIL(hcamcorder, end_time)) {
 414                         _mmcam_dbg_warn("signal received");
 415                         ret = MM_ERROR_NONE;
 416                 } else {
 417                         _mmcam_dbg_err("connection timeout");
 418                         ret = MM_ERROR_RESOURCE_INTERNAL;
 419                 }
 420         } else {
 421                 _mmcam_dbg_warn("already connected");
 422         }
 423
 424         _MMCAMCORDER_UNLOCK_RESOURCE(hcamcorder);
 425
 426         return ret;
 427 }
 428
 429
 430 int _mmcamcorder_resource_manager_prepare(MMCamcorderResourceManager *resource_manager, MMCamcorderResourceType resource_type)
 431 {
 432         MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(resource_manager);
 433         MMCAMCORDER_CHECK_CONNECTION_RESOURCE_MANAGER(resource_manager);
 434
 435         return __mmcamcorder_resource_include_resource(resource_manager, mm_camcorder_resource_str[resource_type]);
 436 }
 437
 438 int _mmcamcorder_resource_manager_acquire(MMCamcorderResourceManager *resource_manager)
 439 {
 440         int ret = MM_ERROR_NONE;
 441         MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(resource_manager);
 442         MMCAMCORDER_CHECK_CONNECTION_RESOURCE_MANAGER(resource_manager);
 443
 444         if (resource_manager->rset == NULL) {
 445                 _mmcam_dbg_err("- could not acquire resource, resource set is null");
 446                 ret = MM_ERROR_RESOURCE_INVALID_STATE;
 447         } else {
 448                 ret = __mmcamcorder_resource_set_release_cb(resource_manager);
 449                 if (ret) {
 450                         _mmcam_dbg_err("- could not set resource release cb, ret(%d)", ret);
 451                         ret = MM_ERROR_RESOURCE_INTERNAL;
 452                 } else {
 453                         ret = mrp_res_acquire_resource_set(resource_manager->rset);
 454                         if (ret) {
 455                                 _mmcam_dbg_err("- could not acquire resource, ret(%d)", ret);
 456                                 ret = MM_ERROR_RESOURCE_INTERNAL;
 457                         }
 458                 }
 459         }
 460
 461         return ret;
 462 }
 463
 464 int _mmcamcorder_resource_manager_release(MMCamcorderResourceManager *resource_manager)
 465 {
 466         int ret = MM_ERROR_NONE;
 467         MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(resource_manager);
 468         MMCAMCORDER_CHECK_CONNECTION_RESOURCE_MANAGER(resource_manager);
 469
 470         if (resource_manager->rset == NULL) {
 471                 _mmcam_dbg_err("- could not release resource, resource set is null");
 472                 ret = MM_ERROR_RESOURCE_INVALID_STATE;
 473         } else {
 474                 if (resource_manager->rset->state != MRP_RES_RESOURCE_ACQUIRED) {
 475                         _mmcam_dbg_err("- could not release resource, resource set state is [%s]",
 476                                 __mmcamcorder_resource_state_to_str(resource_manager->rset->state));
 477                         ret = MM_ERROR_RESOURCE_INVALID_STATE;
 478                 } else {
 479                         ret = mrp_res_release_resource_set(resource_manager->rset);
 480                         if (ret) {
 481                                 _mmcam_dbg_err("- could not release resource, ret(%d)", ret);
 482                                 ret = MM_ERROR_RESOURCE_INTERNAL;
 483                         } else {
 484                                 _mmcam_dbg_log("resource release done");
 485                         }
 486                 }
 487         }
 488
 489         return ret;
 490 }
 491
 492
 493 int _mmcamcorder_resource_manager_deinit(MMCamcorderResourceManager *resource_manager)
 494 {
 495         MMCAMCORDER_CHECK_RESOURCE_MANAGER_INSTANCE(resource_manager);
 496
 497         _mmcam_dbg_warn("rset %p, context %p, mloop %p",
 498                 resource_manager->rset, resource_manager->context, resource_manager->mloop);
 499
 500         if (resource_manager->rset) {
 501                 if (resource_manager->rset->state == MRP_RES_RESOURCE_ACQUIRED) {
 502                         _mmcam_dbg_warn("resource is still acquired. release...");
 503                         if (mrp_res_release_resource_set(resource_manager->rset))
 504                                 _mmcam_dbg_err("- could not release resource");
 505                 }
 506
 507                 _mmcam_dbg_warn("delete resource set");
 508
 509                 mrp_res_delete_resource_set(resource_manager->rset);
 510                 resource_manager->rset = NULL;
 511         }
 512
 513         if (resource_manager->context) {
 514                 _mmcam_dbg_warn("destroy resource context");
 515
 516                 mrp_res_destroy(resource_manager->context);
 517                 resource_manager->context = NULL;
 518         }
 519
 520         if (resource_manager->mloop) {
 521                 _mmcam_dbg_warn("destroy resource mainloop");
 522
 523                 mrp_mainloop_quit(resource_manager->mloop, 0);
 524                 mrp_mainloop_destroy(resource_manager->mloop);
 525                 resource_manager->mloop = NULL;
 526         }
 527
 528         _mmcam_dbg_warn("done");
 529
 530         return MM_ERROR_NONE;
 531 }