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-server-protocol.h>
  41
  42 #include "tdm_private.h"
  43
  44 /* CAUTION:
  45  * - tdm server doesn't care about thread things.
  46  * - DO NOT use the TDM internal functions here.
  47  *     However, the internal function which does lock/unlock the mutex of
  48  *     private_display in itself can be called.
  49  * - DO NOT use the tdm_private_display structure here.
  50  * - The callback function things can be called in main thread.
  51  */
  52
  53 struct _tdm_private_server {
  54         tdm_private_loop *private_loop;
  55         struct list_head output_list;
  56         struct list_head wait_list;
  57 };
  58
  59 typedef struct _tdm_server_output_info {
  60         struct list_head link;
  61         tdm_private_server *private_server;
  62         struct wl_resource *resource;
  63         tdm_output *output;
  64         struct list_head vblank_list;
  65         unsigned int watch_output_changes;
  66 } tdm_server_output_info;
  67
  68 typedef struct _tdm_server_vblank_info {
  69         struct list_head link;
  70         tdm_server_output_info *output_info;
  71         struct wl_resource *resource;
  72
  73         tdm_vblank *vblank;
  74         unsigned int stamp;
  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         double req_time;
  83 } tdm_server_wait_info;
  84
  85 typedef struct _tdm_server_client_info {
  86         struct list_head link;
  87         pid_t pid;
  88         char name[TDM_NAME_LEN];
  89         struct wl_resource *resource;
  90 } tdm_server_client_info;
  91
  92 static tdm_private_server *keep_private_server;
  93 static struct list_head client_list;
  94
  95 static void destroy_wait(tdm_server_wait_info *wait_info);
  96
  97 static void
  98 _tdm_server_get_process_name(pid_t pid, char *name, unsigned int size)
  99 {
 100         char proc[TDM_NAME_LEN], pname[TDM_NAME_LEN];
 101         FILE *h;
 102         size_t len;
 103
 104         snprintf(name, size, "Unknown");
 105
 106         snprintf(proc, TDM_NAME_LEN, "/proc/%d/cmdline", pid);
 107         h = fopen(proc, "r");
 108         if (!h)
 109                 return;
 110
 111         len = fread(pname, sizeof(char), TDM_NAME_LEN, h);
 112         if (len == 0) {
 113                 char *p = strncpy(pname, "NO NAME", sizeof(pname) - 1);
 114                 len = p - pname;
 115         }
 116         pname[len - 1] = '\0';
 117
 118         strncpy(name, pname, size - 1);
 119         name[size - 1] = '\0';
 120
 121         fclose(h);
 122 }
 123
 124 /* LCOV_EXCL_START */
 125 static void
 126 _tdm_server_send_done(tdm_server_wait_info *wait_info, tdm_error error,
 127                                           unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec)
 128 {
 129         tdm_server_wait_info *found;
 130         tdm_server_vblank_info *vblank_info;
 131
 132         TDM_RETURN_IF_FAIL(keep_private_server != NULL);
 133
 134         LIST_FIND_ITEM(wait_info, &keep_private_server->wait_list,
 135                                    tdm_server_wait_info, link, found);
 136         if (!found) {
 137                 TDM_ERR("wait_info(%p) is destroyed", wait_info);
 138                 return;
 139         }
 140
 141         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 142                 TDM_DBG("req_id(%d) done", wait_info->req_id);
 143
 144         vblank_info = wait_info->vblank_info;
 145
 146         if (tdm_ttrace_module & TDM_TTRACE_SERVER_VBLANK)
 147                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Server_Vblank:%u", vblank_info->stamp);
 148
 149         wl_tdm_vblank_send_done(vblank_info->resource, wait_info->req_id,
 150                                                         sequence, tv_sec, tv_usec, error);
 151
 152         destroy_wait(wait_info);
 153 }
 154 /* LCOV_EXCL_STOP */
 155
 156 /* LCOV_EXCL_START */
 157 static void
 158 _tdm_server_cb_vblank(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
 159                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 160 {
 161         _tdm_server_send_done((tdm_server_wait_info*)user_data, error, sequence, tv_sec, tv_usec);
 162 }
 163 /* LCOV_EXCL_STOP */
 164
 165 /* LCOV_EXCL_START */
 166 static void
 167 _tdm_server_cb_output_change(tdm_output *output, tdm_output_change_type type,
 168                                                          tdm_value value, void *user_data)
 169 {
 170         tdm_server_output_info *output_info = user_data;
 171         struct wl_client *client;
 172         pid_t pid = 0;
 173
 174         TDM_RETURN_IF_FAIL(output_info != NULL);
 175
 176         client = wl_resource_get_client(output_info->resource);
 177         TDM_RETURN_IF_FAIL(client != NULL);
 178
 179         wl_client_get_credentials(client, &pid, NULL, NULL);
 180
 181         if (!output_info->watch_output_changes) {
 182                 TDM_DBG("skip sending the output changes: pid(%d)", (unsigned int)pid);
 183                 return;
 184         }
 185
 186         TDM_DBG("send the output changes: %d", (unsigned int)pid);
 187
 188         switch (type) {
 189         case TDM_OUTPUT_CHANGE_DPMS:
 190                 wl_tdm_output_send_dpms(output_info->resource, value.u32, TDM_ERROR_NONE);
 191                 break;
 192         case TDM_OUTPUT_CHANGE_CONNECTION:
 193                 wl_tdm_output_send_connection(output_info->resource, value.u32, TDM_ERROR_NONE);
 194                 break;
 195         default:
 196                 break;
 197         }
 198 }
 199 /* LCOV_EXCL_STOP */
 200
 201 static void
 202 destroy_wait(tdm_server_wait_info *wait_info)
 203 {
 204         LIST_DEL(&wait_info->link);
 205         free(wait_info);
 206 }
 207
 208 static void
 209 destroy_vblank_callback(struct wl_resource *resource)
 210 {
 211         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 212         tdm_server_wait_info *w = NULL, *ww = NULL;
 213
 214         TDM_RETURN_IF_FAIL(vblank_info != NULL);
 215
 216         LIST_DEL(&vblank_info->link);
 217
 218         if (vblank_info->vblank)
 219                 tdm_vblank_destroy(vblank_info->vblank);
 220
 221         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &keep_private_server->wait_list, link) {
 222                 if (w->vblank_info == vblank_info)
 223                         destroy_wait(w);
 224         }
 225
 226         free(vblank_info);
 227 }
 228
 229 /* LCOV_EXCL_START */
 230 static void
 231 _tdm_server_vblank_cb_destroy(struct wl_client *client, struct wl_resource *resource)
 232 {
 233         wl_resource_destroy(resource);
 234 }
 235 /* LCOV_EXCL_STOP */
 236
 237 /* LCOV_EXCL_START */
 238 static void
 239 _tdm_server_vblank_cb_set_name(struct wl_client *client, struct wl_resource *resource, const char *name)
 240 {
 241         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 242
 243         tdm_vblank_set_name(vblank_info->vblank, name);
 244 }
 245 /* LCOV_EXCL_STOP */
 246
 247 /* LCOV_EXCL_START */
 248 static void
 249 _tdm_server_vblank_cb_set_fps(struct wl_client *client, struct wl_resource *resource, uint32_t fps)
 250 {
 251         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 252
 253         tdm_vblank_set_fps(vblank_info->vblank, fps);
 254 }
 255 /* LCOV_EXCL_STOP */
 256
 257 /* LCOV_EXCL_START */
 258 static void
 259 _tdm_server_vblank_cb_set_offset(struct wl_client *client, struct wl_resource *resource, int32_t offset)
 260 {
 261         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 262
 263         tdm_vblank_set_offset(vblank_info->vblank, offset);
 264 }
 265 /* LCOV_EXCL_STOP */
 266
 267 static void
 268 _tdm_server_vblank_cb_set_enable_fake(struct wl_client *client, struct wl_resource *resource, uint32_t enable_fake)
 269 {
 270         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 271
 272         tdm_vblank_set_enable_fake(vblank_info->vblank, enable_fake);
 273 }
 274
 275 static void
 276 _tdm_server_vblank_cb_wait_vblank(struct wl_client *client, struct wl_resource *resource,
 277                                                                   uint32_t interval, uint32_t req_id, uint32_t req_sec, uint32_t req_usec)
 278 {
 279         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 280         tdm_server_output_info *output_info = vblank_info->output_info;
 281         tdm_private_server *private_server = output_info->private_server;
 282         tdm_server_wait_info *wait_info;
 283         unsigned int enable_fake = 0;
 284         tdm_error ret;
 285
 286         wait_info = calloc(1, sizeof * wait_info);
 287         if (!wait_info) {
 288                 /* LCOV_EXCL_START */
 289
 290                 TDM_ERR("alloc failed");
 291                 ret = TDM_ERROR_OUT_OF_MEMORY;
 292                 goto wait_failed;
 293
 294                 /* LCOV_EXCL_STOP */
 295         }
 296
 297         LIST_ADDTAIL(&wait_info->link, &private_server->wait_list);
 298         wait_info->vblank_info = vblank_info;
 299         wait_info->req_id = req_id;
 300         wait_info->req_time = TDM_TIME(req_sec, req_usec);
 301
 302         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 303                 TDM_DBG("req_id(%d) wait", req_id);
 304
 305         if (tdm_ttrace_module & TDM_TTRACE_SERVER_VBLANK)
 306                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Server_Vblank:%u", vblank_info->stamp);
 307
 308         ret = tdm_vblank_wait(vblank_info->vblank, req_sec, req_usec, interval, _tdm_server_cb_vblank, wait_info);
 309
 310         tdm_vblank_get_enable_fake(vblank_info->vblank, &enable_fake);
 311         if (!enable_fake && ret == TDM_ERROR_DPMS_OFF)
 312                 goto wait_failed;
 313
 314         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, wait_failed);
 315
 316         return;
 317 wait_failed:
 318         /* LCOV_EXCL_START */
 319
 320         wl_tdm_vblank_send_done(vblank_info->resource, req_id, 0, 0, 0, ret);
 321         if (wait_info)
 322                 destroy_wait(wait_info);
 323
 324         /* LCOV_EXCL_STOP */
 325 }
 326
 327 static void
 328 _tdm_server_vblank_cb_wait_vblank_seq(struct wl_client *client, struct wl_resource *resource,
 329                                                                           uint32_t sequence, uint32_t req_id, uint32_t req_sec, uint32_t req_usec)
 330 {
 331         tdm_server_vblank_info *vblank_info = wl_resource_get_user_data(resource);
 332         tdm_server_output_info *output_info = vblank_info->output_info;
 333         tdm_private_server *private_server = output_info->private_server;
 334         tdm_server_wait_info *wait_info;
 335         unsigned int enable_fake = 0;
 336         tdm_error ret;
 337
 338         wait_info = calloc(1, sizeof * wait_info);
 339         if (!wait_info) {
 340                 /* LCOV_EXCL_START */
 341
 342                 TDM_ERR("alloc failed");
 343                 ret = TDM_ERROR_OUT_OF_MEMORY;
 344                 goto wait_failed;
 345
 346                 /* LCOV_EXCL_STOP */
 347         }
 348
 349         LIST_ADDTAIL(&wait_info->link, &private_server->wait_list);
 350         wait_info->vblank_info = vblank_info;
 351         wait_info->req_id = req_id;
 352         wait_info->req_time = TDM_TIME(req_sec, req_usec);
 353
 354         if (tdm_debug_module & TDM_DEBUG_VBLANK)
 355                 TDM_DBG("req_id(%d) wait", req_id);
 356
 357         if (tdm_ttrace_module & TDM_TTRACE_SERVER_VBLANK)
 358                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Server_Vblank:%u", vblank_info->stamp);
 359
 360         ret = tdm_vblank_wait_seq(vblank_info->vblank, req_sec, req_usec, sequence, _tdm_server_cb_vblank, wait_info);
 361
 362         tdm_vblank_get_enable_fake(vblank_info->vblank, &enable_fake);
 363         if (!enable_fake && ret == TDM_ERROR_DPMS_OFF)
 364                 goto wait_failed;
 365
 366         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, wait_failed);
 367
 368         return;
 369 wait_failed:
 370         /* LCOV_EXCL_START */
 371
 372         wl_tdm_vblank_send_done(vblank_info->resource, req_id, 0, 0, 0, ret);
 373         if (wait_info)
 374                 destroy_wait(wait_info);
 375
 376         /* LCOV_EXCL_STOP */
 377 }
 378
 379 static const struct wl_tdm_vblank_interface tdm_vblank_implementation = {
 380         _tdm_server_vblank_cb_destroy,
 381         _tdm_server_vblank_cb_set_name,
 382         _tdm_server_vblank_cb_set_fps,
 383         _tdm_server_vblank_cb_set_offset,
 384         _tdm_server_vblank_cb_set_enable_fake,
 385         _tdm_server_vblank_cb_wait_vblank,
 386         _tdm_server_vblank_cb_wait_vblank_seq,
 387 };
 388
 389 /* LCOV_EXCL_START */
 390 static void
 391 _tdm_server_output_cb_destroy(struct wl_client *client, struct wl_resource *resource)
 392 {
 393         wl_resource_destroy(resource);
 394 }
 395 /* LCOV_EXCL_STOP */
 396
 397 static void
 398 _tdm_server_output_cb_create_vblank(struct wl_client *client, struct wl_resource *resource, uint32_t id)
 399 {
 400         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 401         tdm_private_server *private_server = output_info->private_server;
 402         tdm_private_loop *private_loop = private_server->private_loop;
 403         struct wl_resource *vblank_resource;
 404         tdm_vblank *vblank;
 405         tdm_server_vblank_info *vblank_info;
 406
 407         vblank_resource =
 408                 wl_resource_create(client, &wl_tdm_vblank_interface,
 409                                                    wl_resource_get_version(resource), id);
 410         if (!vblank_resource) {
 411                 /* LCOV_EXCL_START */
 412
 413                 wl_resource_post_no_memory(resource);
 414                 TDM_ERR("wl_resource_create failed");
 415                 return;
 416
 417                 /* LCOV_EXCL_STOP */
 418         }
 419
 420         vblank = tdm_vblank_create(private_loop->dpy, output_info->output, NULL);
 421         if (!vblank) {
 422                 /* LCOV_EXCL_START */
 423
 424                 wl_resource_post_no_memory(resource);
 425                 wl_resource_destroy(vblank_resource);
 426                 TDM_ERR("tdm_vblank_create failed");
 427                 return;
 428
 429                 /* LCOV_EXCL_STOP */
 430         }
 431
 432         vblank_info = calloc(1, sizeof * vblank_info);
 433         if (!vblank_info) {
 434                 /* LCOV_EXCL_START */
 435
 436                 wl_resource_post_no_memory(resource);
 437                 wl_resource_destroy(vblank_resource);
 438                 tdm_vblank_destroy(vblank);
 439                 TDM_ERR("alloc failed");
 440                 return;
 441
 442                 /* LCOV_EXCL_STOP */
 443         }
 444
 445         LIST_ADDTAIL(&vblank_info->link, &output_info->vblank_list);
 446         vblank_info->output_info = output_info;
 447         vblank_info->resource = vblank_resource;
 448         vblank_info->vblank = vblank;
 449         vblank_info->stamp = (unsigned int)tdm_vblank_get_stamp(vblank);
 450
 451         tdm_vblank_set_resource(vblank, vblank_resource);
 452
 453         wl_resource_set_implementation(vblank_resource, &tdm_vblank_implementation,
 454                                                                    vblank_info, destroy_vblank_callback);
 455
 456         wl_tdm_vblank_send_stamp(vblank_info->resource, vblank_info->stamp);
 457
 458         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK) {
 459                 tdm_output *output = tdm_display_get_output(private_loop->dpy, tdm_ttrace_output, NULL);
 460                 if (output == output_info->output)
 461                         wl_tdm_vblank_send_ttrace(vblank_info->resource, 1);
 462         }
 463
 464         return;
 465 }
 466
 467 /* LCOV_EXCL_START */
 468 static void
 469 _tdm_server_output_cb_watch_output_changes(struct wl_client *client, struct wl_resource *resource, unsigned int enable)
 470 {
 471         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 472
 473         TDM_RETURN_IF_FAIL(output_info != NULL);
 474
 475         output_info->watch_output_changes = enable;
 476 }
 477 /* LCOV_EXCL_STOP */
 478
 479 static void
 480 _tdm_server_output_cb_get_connection(struct wl_client *client, struct wl_resource *resource)
 481 {
 482         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 483         tdm_output_conn_status status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 484         tdm_error ret;
 485
 486         TDM_RETURN_IF_FAIL(output_info != NULL);
 487
 488         ret = tdm_output_get_conn_status(output_info->output, &status);
 489         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed);
 490
 491         wl_tdm_output_send_connection(output_info->resource, status, ret);
 492
 493         return;
 494
 495 failed:
 496         wl_tdm_output_send_connection(output_info->resource, TDM_OUTPUT_CONN_STATUS_DISCONNECTED, ret);
 497 }
 498
 499 static void
 500 _tdm_server_output_cb_get_mode(struct wl_client *client, struct wl_resource *resource)
 501 {
 502         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 503         tdm_output_conn_status status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 504         tdm_error ret;
 505
 506         TDM_RETURN_IF_FAIL(output_info != NULL);
 507
 508         ret = tdm_output_get_conn_status(output_info->output, &status);
 509         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed);
 510
 511         if (status != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 512                 const tdm_output_mode *mode = NULL;
 513                 unsigned int hdisplay, vdisplay, vrefresh;
 514
 515                 ret = tdm_output_get_mode(output_info->output, &mode);
 516                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed);
 517
 518                 hdisplay = (mode) ? mode->hdisplay : 0;
 519                 vdisplay = (mode) ? mode->vdisplay : 0;
 520                 vrefresh = (mode) ? mode->vrefresh : 0;
 521
 522                 wl_tdm_output_send_mode(output_info->resource, hdisplay, vdisplay, vrefresh, ret);
 523         } else {
 524                 wl_tdm_output_send_mode(output_info->resource, 0, 0, 0, TDM_ERROR_OUTPUT_DISCONNECTED);
 525         }
 526
 527         return;
 528 failed:
 529         wl_tdm_output_send_mode(output_info->resource, 0, 0, 0, ret);
 530 }
 531
 532 static void
 533 _tdm_server_output_cb_get_dpms(struct wl_client *client, struct wl_resource *resource)
 534 {
 535         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 536         tdm_output_conn_status status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 537         tdm_error ret;
 538
 539         TDM_RETURN_IF_FAIL(output_info != NULL);
 540
 541         ret = tdm_output_get_conn_status(output_info->output, &status);
 542         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed);
 543
 544         if (status != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 545                 tdm_output_dpms dpms_value = TDM_OUTPUT_DPMS_OFF;
 546
 547                 ret = tdm_output_get_dpms(output_info->output, &dpms_value);
 548                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed);
 549
 550                 wl_tdm_output_send_dpms(output_info->resource, dpms_value, ret);
 551         } else {
 552                 wl_tdm_output_send_dpms(output_info->resource, TDM_OUTPUT_DPMS_OFF, TDM_ERROR_OUTPUT_DISCONNECTED);
 553         }
 554
 555         return;
 556 failed:
 557         wl_tdm_output_send_dpms(output_info->resource, TDM_OUTPUT_DPMS_OFF, ret);
 558 }
 559
 560 static const struct wl_tdm_output_interface tdm_output_implementation = {
 561         _tdm_server_output_cb_destroy,
 562         _tdm_server_output_cb_create_vblank,
 563         _tdm_server_output_cb_watch_output_changes,
 564         _tdm_server_output_cb_get_connection,
 565         _tdm_server_output_cb_get_mode,
 566         _tdm_server_output_cb_get_dpms,
 567 };
 568
 569 static void
 570 destroy_output_callback(struct wl_resource *resource)
 571 {
 572         tdm_server_output_info *output_info = wl_resource_get_user_data(resource);
 573         tdm_server_vblank_info *v = NULL, *vv = NULL;
 574
 575         TDM_RETURN_IF_FAIL(output_info != NULL);
 576
 577         LIST_DEL(&output_info->link);
 578
 579         tdm_output_remove_change_handler(output_info->output,
 580                                                                          _tdm_server_cb_output_change, output_info);
 581
 582         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &output_info->vblank_list, link) {
 583                 wl_resource_destroy(v->resource);
 584         }
 585
 586         free(output_info);
 587 }
 588
 589 static void
 590 _tdm_server_cb_create_output(struct wl_client *client, struct wl_resource *resource,
 591                                                          const char *name, uint32_t id)
 592 {
 593         tdm_private_server *private_server = wl_resource_get_user_data(resource);
 594         tdm_server_output_info *output_info;
 595         struct wl_resource *output_resource = NULL;
 596         tdm_output *output;
 597         tdm_output_conn_status status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 598         tdm_error ret;
 599
 600         output = tdm_display_find_output(private_server->private_loop->dpy, name, NULL);
 601         if (!output) {
 602                 /* LCOV_EXCL_START */
 603
 604                 TDM_ERR("There is no '%s' output", name);
 605                 wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
 606                                                            "There is no '%s' output", name);
 607                 return;
 608
 609                 /* LCOV_EXCL_STOP */
 610         }
 611
 612         output_resource =
 613                 wl_resource_create(client, &wl_tdm_output_interface,
 614                                                    wl_resource_get_version(resource), id);
 615         if (!output_resource) {
 616                 /* LCOV_EXCL_START */
 617
 618                 wl_resource_post_no_memory(resource);
 619                 TDM_ERR("wl_resource_create failed");
 620                 return;
 621
 622                 /* LCOV_EXCL_STOP */
 623         }
 624
 625         output_info = calloc(1, sizeof * output_info);
 626         if (!output_info) {
 627                 /* LCOV_EXCL_START */
 628
 629                 wl_resource_post_no_memory(resource);
 630                 wl_resource_destroy(output_resource);
 631                 TDM_ERR("alloc failed");
 632                 return;
 633
 634                 /* LCOV_EXCL_STOP */
 635         }
 636
 637         LIST_ADDTAIL(&output_info->link, &private_server->output_list);
 638         output_info->private_server = private_server;
 639         output_info->resource = output_resource;
 640         output_info->output = output;
 641         LIST_INITHEAD(&output_info->vblank_list);
 642
 643         tdm_output_add_change_handler(output, _tdm_server_cb_output_change, output_info);
 644
 645         wl_resource_set_implementation(output_resource, &tdm_output_implementation,
 646                                                                    output_info, destroy_output_callback);
 647
 648         ret = tdm_output_get_conn_status(output, &status);
 649         wl_tdm_output_send_connection(output_resource, status, ret);
 650
 651         if (status != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 652                 tdm_output_dpms dpms_value = TDM_OUTPUT_DPMS_OFF;
 653                 const tdm_output_mode *mode = NULL;
 654                 unsigned int hdisplay, vdisplay, vrefresh;
 655
 656                 ret = tdm_output_get_mode(output, &mode);
 657                 hdisplay = (mode) ? mode->hdisplay : 0;
 658                 vdisplay = (mode) ? mode->vdisplay : 0;
 659                 vrefresh = (mode) ? mode->vrefresh : 0;
 660                 wl_tdm_output_send_mode(output_resource, hdisplay, vdisplay, vrefresh, ret);
 661
 662                 ret = tdm_output_get_dpms(output, &dpms_value);
 663                 wl_tdm_output_send_dpms(output_resource, dpms_value, ret);
 664         } else {
 665                 wl_tdm_output_send_mode(output_resource, 0, 0, 0, TDM_ERROR_OUTPUT_DISCONNECTED);
 666                 wl_tdm_output_send_dpms(output_resource, TDM_OUTPUT_DPMS_OFF, TDM_ERROR_OUTPUT_DISCONNECTED);
 667         }
 668 }
 669
 670 /* LCOV_EXCL_START */
 671 static void
 672 _tdm_server_cb_debug(struct wl_client *client, struct wl_resource *resource, const char *options)
 673 {
 674         tdm_private_server *private_server = wl_resource_get_user_data(resource);
 675         tdm_private_loop *private_loop = private_server->private_loop;
 676         char message[TDM_SERVER_REPLY_MSG_LEN];
 677         char *m;
 678         int len = sizeof(message), size;
 679         uid_t uid;
 680
 681         wl_client_get_credentials(client, NULL, &uid, NULL);
 682
 683         if (uid != 0) {
 684                 snprintf(message, len, "tdm-monitor: SHOULD be a superuser.\n");
 685                 TDM_ERR("%s", message);
 686         } else {
 687                 tdm_monitor_server_command(private_loop->dpy, options, message, &len);
 688         }
 689
 690         size = sizeof(message) - len;
 691         m = message;
 692
 693         wl_client_flush(client);
 694
 695         while (size > 0) {
 696                 char buffer[TDM_DEBUG_REPLY_MSG_LEN];
 697                 int copylen = TDM_MIN(size, sizeof(buffer) - 1);
 698
 699                 strncpy(buffer, m, copylen);
 700                 m += copylen;
 701                 size -= copylen;
 702
 703                 buffer[copylen] = '\0';
 704
 705                 wl_tdm_send_debug_message(resource, buffer);
 706         }
 707
 708         wl_tdm_send_debug_done(resource);
 709 }
 710 /* LCOV_EXCL_STOP */
 711
 712 static const struct wl_tdm_interface tdm_implementation = {
 713         _tdm_server_cb_debug,
 714         _tdm_server_cb_create_output,
 715 };
 716
 717 static void
 718 destroy_client(struct wl_resource *resource)
 719 {
 720         tdm_server_client_info *c = NULL, *cc = NULL;
 721         struct wl_client *client;
 722
 723         client = wl_resource_get_client(resource);
 724         TDM_RETURN_IF_FAIL(client != NULL);
 725
 726         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &client_list, link) {
 727                 if (c->resource == resource) {
 728                         LIST_DEL(&c->link);
 729                         free(c);
 730                         return;
 731                 }
 732         }
 733 }
 734
 735 static void
 736 _tdm_server_bind(struct wl_client *client, void *data,
 737                                  uint32_t version, uint32_t id)
 738 {
 739         struct wl_resource *resource;
 740         tdm_server_client_info *cinfo;
 741
 742         resource = wl_resource_create(client, &wl_tdm_interface, version, id);
 743         if (!resource) {
 744                 /* LCOV_EXCL_START */
 745
 746                 wl_client_post_no_memory(client);
 747                 return;
 748
 749                 /* LCOV_EXCL_STOP */
 750         }
 751
 752         cinfo = calloc(1, sizeof(tdm_server_client_info));
 753         if (!cinfo) {
 754                 /* LCOV_EXCL_START */
 755
 756                 wl_client_post_no_memory(client);
 757                 wl_resource_destroy(resource);
 758                 return;
 759
 760                 /* LCOV_EXCL_STOP */
 761         }
 762
 763         cinfo->resource = resource;
 764
 765         LIST_ADDTAIL(&cinfo->link, &client_list);
 766         wl_client_get_credentials(client, &cinfo->pid, NULL, NULL);
 767         _tdm_server_get_process_name(cinfo->pid, cinfo->name, TDM_NAME_LEN);
 768
 769         wl_resource_set_implementation(resource, &tdm_implementation, data, destroy_client);
 770 }
 771
 772 INTERN tdm_error
 773 tdm_server_init(tdm_private_loop *private_loop)
 774 {
 775         tdm_private_server *private_server;
 776
 777         TDM_RETURN_VAL_IF_FAIL(private_loop, TDM_ERROR_OPERATION_FAILED);
 778         TDM_RETURN_VAL_IF_FAIL(private_loop->wl_display, TDM_ERROR_OPERATION_FAILED);
 779
 780         if (private_loop->private_server)
 781                 return TDM_ERROR_NONE;
 782
 783         if (wl_display_add_socket(private_loop->wl_display, "tdm-socket")) {
 784                 /* LCOV_EXCL_START */
 785
 786                 TDM_ERR("createing a tdm-socket failed");
 787                 return TDM_ERROR_OPERATION_FAILED;
 788
 789                 /* LCOV_EXCL_STOP */
 790         }
 791
 792         private_server = calloc(1, sizeof * private_server);
 793         if (!private_server) {
 794                 TDM_ERR("alloc failed");
 795                 return TDM_ERROR_OUT_OF_MEMORY;
 796         }
 797
 798         LIST_INITHEAD(&private_server->output_list);
 799         LIST_INITHEAD(&private_server->wait_list);
 800
 801         if (!wl_global_create(private_loop->wl_display, &wl_tdm_interface, 1,
 802                                                   private_server, _tdm_server_bind)) {
 803                 /* LCOV_EXCL_START */
 804
 805                 TDM_ERR("creating a global resource failed");
 806                 free(private_server);
 807                 return TDM_ERROR_OUT_OF_MEMORY;
 808
 809                 /* LCOV_EXCL_STOP */
 810         }
 811
 812         private_server->private_loop = private_loop;
 813         private_loop->private_server = private_server;
 814         keep_private_server = private_server;
 815
 816         LIST_INITHEAD(&client_list);
 817
 818         return TDM_ERROR_NONE;
 819 }
 820
 821 INTERN void
 822 tdm_server_deinit(tdm_private_loop *private_loop)
 823 {
 824         tdm_server_output_info *o = NULL, *oo = NULL;
 825         tdm_server_wait_info *w = NULL, *ww = NULL;
 826         tdm_server_client_info *c = NULL, *cc = NULL;
 827         tdm_private_server *private_server;
 828
 829         if (!private_loop->private_server)
 830                 return;
 831
 832         private_server = private_loop->private_server;
 833
 834         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_server->wait_list, link) {
 835                 destroy_wait(w);
 836         }
 837
 838         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_server->output_list, link) {
 839                 wl_resource_destroy(o->resource);
 840         }
 841
 842         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &client_list, link) {
 843                 wl_resource_destroy(c->resource);
 844         }
 845
 846         free(private_server);
 847         private_loop->private_server = NULL;
 848         keep_private_server = NULL;
 849 }
 850
 851 /* LCOV_EXCL_START */
 852 INTERN const char*
 853 tdm_server_get_client_name(pid_t pid)
 854 {
 855         tdm_server_client_info *c = NULL;
 856
 857         LIST_FOR_EACH_ENTRY(c, &client_list, link) {
 858                 if (c->pid == pid)
 859                         return (const char*)c->name;
 860         }
 861
 862         return NULL;
 863 }
 864 /* LCOV_EXCL_STOP */
 865
 866 /* LCOV_EXCL_START */
 867 INTERN tdm_error
 868 tdm_server_enable_ttrace_client_vblank(tdm_display *dpy, tdm_output *output, int enable)
 869 {
 870         tdm_private_server *private_server = keep_private_server;
 871         tdm_server_output_info *output_info = NULL;
 872
 873         if (!keep_private_server)
 874                 return TDM_ERROR_NONE;
 875
 876         LIST_FOR_EACH_ENTRY(output_info, &private_server->output_list, link) {
 877                 tdm_server_vblank_info *vblank_info = NULL;
 878
 879                 if (output && output_info->output != output)
 880                         continue;
 881
 882                 LIST_FOR_EACH_ENTRY(vblank_info, &output_info->vblank_list, link) {
 883                         wl_tdm_vblank_send_ttrace(vblank_info->resource, enable);
 884                 }
 885         }
 886
 887         return TDM_ERROR_NONE;
 888 }
 889 /* LCOV_EXCL_STOP */