src/tdm_server.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm.h"
  41 #include "tdm_private.h"
  42 #include "tdm_list.h"
  43 #include "tdm-server-protocol.h"
  44
  45 /* CAUTION:
  46  * - tdm server doesn't care about thread things.
  47  * - DO NOT use the TDM internal functions here.
  48  *     However, the internal function which does lock/unlock the mutex of
  49  *     private_display in itself can be called.
  50  * - DO NOT use the tdm_private_display structure here.
  51  * - The callback function things can be called in main thread.
  52  */
  53
  54 struct _tdm_private_server {
  55         tdm_private_loop *private_loop;
  56         struct list_head output_list;
  57         struct list_head wait_list;
  58 };
  59
  60 typedef struct _tdm_server_output_info {
  61         struct list_head link;
  62         tdm_private_server *private_server;
  63         struct wl_resource *resource;
  64         tdm_output *output;
  65         struct list_head vblank_list;
  66         unsigned int watch_output_changes;
  67 } tdm_server_output_info;
  68
  69 typedef struct _tdm_server_vblank_info {
  70         struct list_head link;
  71         tdm_server_output_info *output_info;
  72         struct wl_resource *resource;
  73
  74         tdm_vblank *vblank;
  75 } tdm_server_vblank_info;
  76
  77 typedef struct _tdm_server_wait_info {
  78         struct list_head link;
  79         tdm_server_vblank_info *vblank_info;
  80
  81         unsigned int req_id;
  82 } tdm_server_wait_info;
  83
  84 static tdm_private_server *keep_private_server;
  85
  86 static void destroy_wait(tdm_server_wait_info *wait_info);
  87
  88 static tdm_output*
  89 _tdm_server_find_output(tdm_private_server *private_server, const char *name)
  90 {
  91         tdm_private_loop *private_loop = private_server->private_loop;
  92         tdm_output *found = NULL;
  93
  94         if (!strncasecmp(name, "primary", 7) || !strncasecmp(name, "default", 7))
  95                 found = tdm_display_get_output(private_loop->dpy, 0, NULL);
  96
  97         if (!found) {
  98                 int count = 0, i;
  99
 100                 tdm_display_get_output_count(private_loop->dpy, &count);
 101
 102                 for (i = 0; i < count; i++) {
 103                         tdm_output *output = tdm_display_get_output(private_loop->dpy, i, NULL);
 104                         tdm_output_conn_status status;
 105                         const char *model = NULL;
 106                         tdm_error ret;
 107
 108                         ret = tdm_output_get_conn_status(output, &status);
 109                         if (ret || status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 110                                 continue;
 111
 112                         ret = tdm_output_get_model_info(output, NULL, &model, NULL);
 113                         if (ret || !model)
 114                                 continue;
 115
 116                         if (strncmp(model, name, TDM_NAME_LEN))
 117                                 continue;
 118
 119                         found = output;
 120                         break;
 121                 }
 122         }
 123
 124         return found;
 125 }
 126
 127 static void
 128 _tdm_server_send_done(tdm_server_wait_info *wait_info, tdm_error error,
 129                                           unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec)
 130 {
 131         tdm_server_wait_info *found;
 132         tdm_server_vblank_info *vblank_info;
 133
 134         if (!keep_private_server)
 135                 return;
 136
 137         LIST_FIND_ITEM(wait_info, &keep_private_server->wait_list,
 138                                    tdm_server_wait_info, link, found);
 139         if (!found) {
 140                 TDM_DBG("wait_info(%p) is destroyed", wait_info);
 141                 return;
 142         }
 143
 144         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 145                 TDM_INFO("req_id(%d) done", wait_info->req_id);
 146
 147         TDM_TRACE_COUNT(ServerDoneVBlank, wait_info->req_id);
 148
 149         vblank_info = wait_info->vblank_info;
 150         wl_tdm_vblank_send_done(vblank_info->resource, wait_info->req_id,
 151                                                         sequence, tv_sec, tv_usec, error);
 152         destroy_wait(wait_info);
 153 }
 154
 155 static void
 156 _tdm_server_cb_vblank(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
 157                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 158 {
 159         _tdm_server_send_done((tdm_server_wait_info*)user_data, error, sequence, tv_sec, tv_usec);
 160 }
 161
 162 static void
 163 _tdm_server_cb_output_change(tdm_output *output, tdm_output_change_type type,
 164                                                          tdm_value value, void *user_data)
 165 {
 166         tdm_server_output_info *output_info = user_data;
 167         struct wl_client *client;
 168         pid_t pid = 0;
 169
 170         TDM_RETURN_IF_FAIL(output_info != NULL);
 171
 172         client = wl_resource_get_client(output_info->resource);
 173         TDM_RETURN_IF_FAIL(client != NULL);
 174
 175         wl_client_get_credentials(client, &pid, NULL, NULL);
 176
 177         if (!output_info->watch_output_changes) {
 178                 TDM_DBG("skip sending the output changes: pid(%d)", (unsigned int)pid);
 179                 return;
 180         }
 181
 182         TDM_DBG("send the output changes: %d", (unsigned int)pid);
 183
 184         switch (type) {
 185         case TDM_OUTPUT_CHANGE_DPMS:
 186                 wl_tdm_output_send_dpms(output_info->resource, value.u32);
 187                 break;
 188         case TDM_OUTPUT_CHANGE_CONNECTION:
 189                 wl_tdm_output_send_connection(output_info->resource, value.u32);
 190                 break;
 191         default:
 192                 break;
 193         }
 194 }
 195
 196 static void
 197 destroy_wait(tdm_server_wait_info *wait_info)
 198 {
 199         LIST_DEL(&wait_info->link);
 200         free(wait_info);
 201 }
 202
 203 static void
 204 destroy_vblank_callback(struct wl_resource *resource)
 205 {
 206         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 207         tdm_server_wait_info *w = NULL, *ww = NULL;
 208
 209         TDM_RETURN_IF_FAIL(vblank_info != NULL);
 210
 211         if (vblank_info->vblank)
 212                 tdm_vblank_destroy(vblank_info->vblank);
 213
 214         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &keep_private_server->wait_list, link) {
 215                 if (w->vblank_info == vblank_info)
 216                         destroy_wait(w);
 217         }
 218
 219         LIST_DEL(&vblank_info->link);
 220         free(vblank_info);
 221 }
 222
 223 static void
 224 _tdm_server_vblank_cb_destroy(struct wl_client *client, struct wl_resource *resource)
 225 {
 226         wl_resource_destroy(resource);
 227 }
 228
 229 static void
 230 _tdm_server_vblank_cb_set_name(struct wl_client *client, struct wl_resource *resource, const char *name)
 231 {
 232         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 233
 234         tdm_vblank_set_name(vblank_info->vblank, name);
 235 }
 236
 237 static void
 238 _tdm_server_vblank_cb_set_fps(struct wl_client *client, struct wl_resource *resource, uint32_t fps)
 239 {
 240         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 241
 242         tdm_vblank_set_fps(vblank_info->vblank, fps);
 243 }
 244
 245 static void
 246 _tdm_server_vblank_cb_set_offset(struct wl_client *client, struct wl_resource *resource, int32_t offset)
 247 {
 248         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 249
 250         tdm_vblank_set_offset(vblank_info->vblank, offset);
 251 }
 252
 253 static void
 254 _tdm_server_vblank_cb_set_enable_fake(struct wl_client *client, struct wl_resource *resource, uint32_t enable_fake)
 255 {
 256         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 257
 258         tdm_vblank_set_enable_fake(vblank_info->vblank, enable_fake);
 259 }
 260
 261 static void
 262 _tdm_server_vblank_cb_wait_vblank(struct wl_client *client, struct wl_resource *resource,
 263                                                                   uint32_t interval, uint32_t req_id, uint32_t req_sec, uint32_t req_usec)
 264 {
 265         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 266         tdm_server_output_info *output_info = vblank_info->output_info;
 267         tdm_private_server *private_server = output_info->private_server;
 268         tdm_server_wait_info *wait_info;
 269         unsigned int enable_fake = 0;
 270         tdm_error ret;
 271
 272         TDM_TRACE_COUNT(ServerWaitVBlank, req_id);
 273
 274         wait_info = calloc(1, sizeof * wait_info);
 275         if (!wait_info) {
 276                 TDM_ERR("alloc failed");
 277                 ret = TDM_ERROR_OUT_OF_MEMORY;
 278                 goto wait_failed;
 279         }
 280
 281         LIST_ADDTAIL(&wait_info->link, &private_server->wait_list);
 282         wait_info->vblank_info = vblank_info;
 283         wait_info->req_id = req_id;
 284
 285         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 286                 TDM_INFO("req_id(%d) wait", req_id);
 287
 288         ret = tdm_vblank_wait(vblank_info->vblank, req_sec, req_usec, interval, _tdm_server_cb_vblank, wait_info);
 289
 290         tdm_vblank_get_enable_fake(vblank_info->vblank, &enable_fake);
 291         if (!enable_fake && ret == TDM_ERROR_DPMS_OFF)
 292                 goto wait_failed;
 293
 294         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, wait_failed);
 295
 296         return;
 297 wait_failed:
 298         wl_tdm_vblank_send_done(vblank_info->resource, req_id, 0, 0, 0, ret);
 299         if (wait_info)
 300                 destroy_wait(wait_info);
 301 }
 302
 303 static void
 304 _tdm_server_vblank_cb_wait_vblank_seq(struct wl_client *client, struct wl_resource *resource,
 305                                                                           uint32_t sequence, uint32_t req_id, uint32_t req_sec, uint32_t req_usec)
 306 {
 307         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 308         tdm_server_output_info *output_info = vblank_info->output_info;
 309         tdm_private_server *private_server = output_info->private_server;
 310         tdm_server_wait_info *wait_info;
 311         unsigned int enable_fake = 0;
 312         tdm_error ret;
 313
 314         TDM_TRACE_COUNT(ServerWaitVBlank, req_id);
 315
 316         wait_info = calloc(1, sizeof * wait_info);
 317         if (!wait_info) {
 318                 TDM_ERR("alloc failed");
 319                 ret = TDM_ERROR_OUT_OF_MEMORY;
 320                 goto wait_failed;
 321         }
 322
 323         LIST_ADDTAIL(&wait_info->link, &private_server->wait_list);
 324         wait_info->vblank_info = vblank_info;
 325         wait_info->req_id = req_id;
 326
 327         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 328                 TDM_INFO("req_id(%d) wait", req_id);
 329
 330         ret = tdm_vblank_wait_seq(vblank_info->vblank, req_sec, req_usec, sequence, _tdm_server_cb_vblank, wait_info);
 331
 332         tdm_vblank_get_enable_fake(vblank_info->vblank, &enable_fake);
 333         if (!enable_fake && ret == TDM_ERROR_DPMS_OFF)
 334                 goto wait_failed;
 335
 336         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, wait_failed);
 337
 338         return;
 339 wait_failed:
 340         wl_tdm_vblank_send_done(vblank_info->resource, req_id, 0, 0, 0, ret);
 341         if (wait_info)
 342                 destroy_wait(wait_info);
 343 }
 344
 345 static const struct wl_tdm_vblank_interface tdm_vblank_implementation = {
 346         _tdm_server_vblank_cb_destroy,
 347         _tdm_server_vblank_cb_set_name,
 348         _tdm_server_vblank_cb_set_fps,
 349         _tdm_server_vblank_cb_set_offset,
 350         _tdm_server_vblank_cb_set_enable_fake,
 351         _tdm_server_vblank_cb_wait_vblank,
 352         _tdm_server_vblank_cb_wait_vblank_seq,
 353 };
 354
 355 static void
 356 _tdm_server_output_cb_destroy(struct wl_client *client, struct wl_resource *resource)
 357 {
 358         wl_resource_destroy(resource);
 359 }
 360
 361 static void
 362 _tdm_server_output_cb_create_vblank(struct wl_client *client, struct wl_resource *resource, uint32_t id)
 363 {
 364         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 365         tdm_private_server *private_server = output_info->private_server;
 366         tdm_private_loop *private_loop = private_server->private_loop;
 367         struct wl_resource *vblank_resource;
 368         tdm_vblank *vblank;
 369         tdm_server_vblank_info *vblank_info;
 370
 371         vblank_resource =
 372                 wl_resource_create(client, &wl_tdm_vblank_interface,
 373                                                    wl_resource_get_version(resource), id);
 374         if (!vblank_resource) {
 375                 wl_resource_post_no_memory(resource);
 376                 TDM_ERR("wl_resource_create failed");
 377                 return;
 378         }
 379
 380         vblank = tdm_vblank_create(private_loop->dpy, output_info->output, NULL);
 381         if (!vblank) {
 382                 wl_resource_post_no_memory(resource);
 383                 wl_resource_destroy(vblank_resource);
 384                 TDM_ERR("tdm_vblank_create failed");
 385                 return;
 386         }
 387
 388         vblank_info = calloc(1, sizeof * vblank_info);
 389         if (!vblank_info) {
 390                 wl_resource_post_no_memory(resource);
 391                 wl_resource_destroy(vblank_resource);
 392                 tdm_vblank_destroy(vblank);
 393                 TDM_ERR("alloc failed");
 394                 return;
 395         }
 396
 397         LIST_ADDTAIL(&vblank_info->link, &output_info->vblank_list);
 398         vblank_info->output_info = output_info;
 399         vblank_info->resource = vblank_resource;
 400         vblank_info->vblank = vblank;
 401
 402         tdm_vblank_set_resource(vblank, vblank_resource);
 403
 404         wl_resource_set_implementation(vblank_resource, &tdm_vblank_implementation,
 405                                                                    vblank_info, destroy_vblank_callback);
 406
 407         return;
 408 }
 409
 410 static void
 411 _tdm_server_output_cb_watch_output_changes(struct wl_client *client, struct wl_resource *resource, unsigned int enable)
 412 {
 413         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 414
 415         TDM_RETURN_IF_FAIL(output_info != NULL);
 416
 417         output_info->watch_output_changes = enable;
 418 }
 419
 420 static const struct wl_tdm_output_interface tdm_output_implementation = {
 421         _tdm_server_output_cb_destroy,
 422         _tdm_server_output_cb_create_vblank,
 423         _tdm_server_output_cb_watch_output_changes,
 424 };
 425
 426 static void
 427 destroy_output_callback(struct wl_resource *resource)
 428 {
 429         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 430         tdm_server_vblank_info *v = NULL, *vv = NULL;
 431
 432         TDM_RETURN_IF_FAIL(output_info != NULL);
 433
 434         tdm_output_remove_change_handler(output_info->output,
 435                                                                          _tdm_server_cb_output_change, output_info);
 436
 437         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &output_info->vblank_list, link) {
 438                 wl_resource_destroy(v->resource);
 439         }
 440
 441         LIST_DEL(&output_info->link);
 442         free(output_info);
 443 }
 444
 445 static void
 446 _tdm_server_cb_create_output(struct wl_client *client, struct wl_resource *resource,
 447                                                          const char *name, uint32_t id)
 448 {
 449         tdm_private_server *private_server = wl_resource_get_user_data(resource);
 450         tdm_server_output_info *output_info;
 451         struct wl_resource *output_resource = NULL;
 452         tdm_output *output;
 453         const tdm_output_mode *mode = NULL;
 454         tdm_output_dpms dpms_value;
 455         tdm_output_conn_status status;
 456
 457         output = _tdm_server_find_output(private_server, name);
 458         if (!output) {
 459                 TDM_ERR("There is no '%s' output", name);
 460                 wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
 461                                                            "There is no '%s' output", name);
 462                 return;
 463         }
 464
 465         tdm_output_get_mode(output, &mode);
 466         if (!mode) {
 467                 TDM_ERR("no mode for '%s' output", name);
 468                 wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
 469                                                            "no mode for '%s' output", name);
 470                 return;
 471         }
 472
 473         tdm_output_get_dpms(output, &dpms_value);
 474         tdm_output_get_conn_status(output, &status);
 475
 476         output_resource =
 477                 wl_resource_create(client, &wl_tdm_output_interface,
 478                                                    wl_resource_get_version(resource), id);
 479         if (!output_resource) {
 480                 wl_resource_post_no_memory(resource);
 481                 TDM_ERR("wl_resource_create failed");
 482                 return;
 483         }
 484
 485         output_info = calloc(1, sizeof * output_info);
 486         if (!output_info) {
 487                 wl_resource_post_no_memory(resource);
 488                 wl_resource_destroy(output_resource);
 489                 TDM_ERR("alloc failed");
 490                 return;
 491         }
 492
 493         LIST_ADDTAIL(&output_info->link, &private_server->output_list);
 494         output_info->private_server = private_server;
 495         output_info->resource = output_resource;
 496         output_info->output = output;
 497         LIST_INITHEAD(&output_info->vblank_list);
 498
 499         tdm_output_add_change_handler(output, _tdm_server_cb_output_change, output_info);
 500
 501         wl_resource_set_implementation(output_resource, &tdm_output_implementation,
 502                                                                    output_info, destroy_output_callback);
 503
 504         wl_tdm_output_send_mode(output_resource, mode->hdisplay, mode->vdisplay, mode->vrefresh);
 505         wl_tdm_output_send_dpms(output_resource, dpms_value);
 506         wl_tdm_output_send_connection(output_resource, status);
 507 }
 508
 509 static void
 510 _tdm_server_cb_debug(struct wl_client *client, struct wl_resource *resource, const char *options)
 511 {
 512         tdm_private_server *private_server = wl_resource_get_user_data(resource);
 513         tdm_private_loop *private_loop = private_server->private_loop;
 514         char message[TDM_SERVER_REPLY_MSG_LEN];
 515         int size = sizeof(message);
 516         uid_t uid;
 517
 518         wl_client_get_credentials(client, NULL, &uid, NULL);
 519
 520         if (uid != 0) {
 521                 snprintf(message, size, "tdm-monitor: SHOULD be a superuser.\n");
 522                 TDM_ERR("%s", message);
 523         } else {
 524                 tdm_monitor_server_command(private_loop->dpy, options, message, &size);
 525         }
 526
 527         wl_tdm_send_debug_done(resource, message);
 528 }
 529
 530 static void
 531 _tdm_server_cb_set_client_vblank_fps(struct wl_client *client, struct wl_resource *resource,
 532                                                                          unsigned int pid, const char *name, unsigned int fps)
 533 {
 534         tdm_error ret = tdm_vblank_set_client_vblank_fps(pid, name, fps);
 535         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
 536
 537         TDM_INFO("'%s' vblank fps(PID: '%u'): %u", name, pid, fps);
 538 }
 539
 540 static const struct wl_tdm_interface tdm_implementation = {
 541         _tdm_server_cb_debug,
 542         _tdm_server_cb_create_output,
 543         _tdm_server_cb_set_client_vblank_fps,
 544 };
 545
 546 static void
 547 _tdm_server_bind(struct wl_client *client, void *data,
 548                                  uint32_t version, uint32_t id)
 549 {
 550         struct wl_resource *resource;
 551
 552         resource = wl_resource_create(client, &wl_tdm_interface, version, id);
 553         if (!resource) {
 554                 wl_client_post_no_memory(client);
 555                 return;
 556         }
 557
 558         wl_resource_set_implementation(resource, &tdm_implementation, data, NULL);
 559 }
 560
 561 INTERN tdm_error
 562 tdm_server_init(tdm_private_loop *private_loop)
 563 {
 564         tdm_private_server *private_server;
 565
 566         TDM_RETURN_VAL_IF_FAIL(private_loop, TDM_ERROR_OPERATION_FAILED);
 567         TDM_RETURN_VAL_IF_FAIL(private_loop->wl_display, TDM_ERROR_OPERATION_FAILED);
 568
 569         if (private_loop->private_server)
 570                 return TDM_ERROR_NONE;
 571
 572         if (wl_display_add_socket(private_loop->wl_display, "tdm-socket")) {
 573                 TDM_ERR("createing a tdm-socket failed");
 574                 return TDM_ERROR_OPERATION_FAILED;
 575         }
 576
 577         private_server = calloc(1, sizeof * private_server);
 578         if (!private_server) {
 579                 TDM_ERR("alloc failed");
 580                 return TDM_ERROR_OUT_OF_MEMORY;
 581         }
 582
 583         LIST_INITHEAD(&private_server->output_list);
 584         LIST_INITHEAD(&private_server->wait_list);
 585
 586         if (!wl_global_create(private_loop->wl_display, &wl_tdm_interface, 1,
 587                                                   private_server, _tdm_server_bind)) {
 588                 TDM_ERR("creating a global resource failed");
 589                 free(private_server);
 590                 return TDM_ERROR_OUT_OF_MEMORY;
 591         }
 592
 593         private_server->private_loop = private_loop;
 594         private_loop->private_server = private_server;
 595         keep_private_server = private_server;
 596
 597         return TDM_ERROR_NONE;
 598 }
 599
 600 INTERN void
 601 tdm_server_deinit(tdm_private_loop *private_loop)
 602 {
 603         tdm_server_output_info *o = NULL, *oo = NULL;
 604         tdm_server_wait_info *w = NULL, *ww = NULL;
 605         tdm_private_server *private_server;
 606
 607         if (!private_loop->private_server)
 608                 return;
 609
 610         private_server = private_loop->private_server;
 611
 612         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_server->wait_list, link) {
 613                 destroy_wait(w);
 614         }
 615
 616         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_server->output_list, link) {
 617                 wl_resource_destroy(o->resource);
 618         }
 619
 620         free(private_server);
 621         private_loop->private_server = NULL;
 622         keep_private_server = NULL;
 623 }
 624