src/tdm_private.h

   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 #ifndef _TDM_PRIVATE_H_
  37 #define _TDM_PRIVATE_H_
  38
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <strings.h>
  42 #include <stdlib.h>
  43 #include <pthread.h>
  44 #include <errno.h>
  45 #include <unistd.h>
  46 #include <limits.h>
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49 #include <fcntl.h>
  50 #include <dlfcn.h>
  51 #include <dirent.h>
  52 #include <poll.h>
  53 #include <sys/syscall.h>
  54 #include <sys/types.h>
  55 #include <math.h>
  56
  57 #include <tbm_bufmgr.h>
  58 #include <tbm_surface_queue.h>
  59
  60 #include "tdm_backend.h"
  61 #include "tdm_log.h"
  62 #include "tdm_list.h"
  63 #include "tdm_macro.h"
  64
  65 #ifdef __cplusplus
  66 extern "C" {
  67 #endif
  68
  69 //#define INIT_BUFMGR
  70
  71 /**
  72  * @file tdm_private.h
  73  * @brief The private header file for a frontend library
  74  */
  75
  76 enum {
  77         TDM_DEBUG_NONE,
  78         TDM_DEBUG_BUFFER    = (1 << 0),
  79         TDM_DEBUG_MUTEX     = (1 << 1),
  80         TDM_DEBUG_THREAD    = (1 << 2),
  81         TDM_DEBUG_SERVER    = (1 << 3),
  82         TDM_DEBUG_VBLANK    = (1 << 4),
  83         TDM_DEBUG_COMMIT    = (1 << 5),
  84 };
  85
  86 extern int tdm_debug_module;
  87 extern int tdm_debug_dump;
  88
  89 #ifdef HAVE_TTRACE
  90 #include <ttrace.h>
  91 #define TDM_TRACE_BEGIN(NAME) traceBegin(TTRACE_TAG_GRAPHICS, "TDM:"#NAME)
  92 #define TDM_TRACE_END() traceEnd(TTRACE_TAG_GRAPHICS)
  93 #define TDM_TRACE_COUNT(NAME, COUNT) traceCounter(TTRACE_TAG_GRAPHICS, COUNT, "TDM:"#NAME)
  94 #define TDM_TRACE_MARK(NAME) traceMark(TTRACE_TAG_GRAPHICS, "TDM:"#NAME)
  95 #else
  96 #define TDM_TRACE_BEGIN(NAME)
  97 #define TDM_TRACE_END()
  98 #define TDM_TRACE_COUNT(NAME, COUNT)
  99 #define TDM_TRACE_MARK(NAME)
 100 #endif
 101
 102 typedef enum {
 103         TDM_CAPTURE_TARGET_OUTPUT,
 104         TDM_CAPTURE_TARGET_LAYER,
 105 } tdm_capture_target;
 106
 107 enum {
 108         TDM_DUMP_FLAG_LAYER   = (1 << 0),
 109         TDM_DUMP_FLAG_PP      = (1 << 1),
 110         TDM_DUMP_FLAG_CAPTURE = (1 << 2),
 111 };
 112
 113 #define TDM_DUMP_DIR    "/tmp"
 114
 115 typedef enum {
 116         TDM_COMMIT_TYPE_NONE,
 117         TDM_COMMIT_TYPE_OUTPUT,
 118         TDM_COMMIT_TYPE_LAYER,
 119 } tdm_commit_type;
 120
 121 typedef struct _tdm_private_display tdm_private_display;
 122 typedef struct _tdm_private_output tdm_private_output;
 123 typedef struct _tdm_private_layer tdm_private_layer;
 124 typedef struct _tdm_private_pp tdm_private_pp;
 125 typedef struct _tdm_private_capture tdm_private_capture;
 126 typedef struct _tdm_private_loop tdm_private_loop;
 127 typedef struct _tdm_private_server tdm_private_server;
 128 typedef struct _tdm_private_thread tdm_private_thread;
 129 typedef struct _tdm_private_vblank_handler tdm_private_vblank_handler;
 130 typedef struct _tdm_private_output_commit_handler tdm_private_output_commit_handler;
 131 typedef struct _tdm_private_layer_commit_handler tdm_private_layer_commit_handler;
 132 typedef struct _tdm_private_change_handler tdm_private_change_handler;
 133
 134 struct _tdm_private_display {
 135         pthread_mutex_t lock;
 136         unsigned int init_count;
 137
 138         /* backend module info */
 139         void *module;
 140         tdm_backend_module *module_data;
 141         tdm_backend_data *bdata;
 142
 143 #ifdef INIT_BUFMGR
 144         tbm_bufmgr bufmgr;
 145 #endif
 146
 147         /* backend function */
 148         tdm_display_capability capabilities;
 149         tdm_func_display func_display;
 150         tdm_func_output func_output;
 151         tdm_func_layer func_layer;
 152         tdm_func_pp func_pp;
 153         tdm_func_capture func_capture;
 154
 155         /* backend capability */
 156         tdm_caps_display caps_display;
 157         tdm_caps_pp caps_pp;
 158         tdm_caps_capture caps_capture;
 159
 160         /* output, pp list */
 161         struct list_head output_list;
 162         struct list_head pp_list;
 163         struct list_head capture_list;
 164
 165         void **outputs_ptr;
 166
 167         /* for event handling */
 168         tdm_private_loop *private_loop;
 169
 170         /* output order */
 171         tdm_output **outputs;
 172
 173         /* calling a output commit per a vblank */
 174         int commit_per_vblank;
 175         tdm_commit_type commit_type;
 176
 177         int print_fps;
 178 };
 179
 180 struct _tdm_private_output {
 181         struct list_head link;
 182
 183         int index;
 184         double stamp;
 185
 186         tdm_private_display *private_display;
 187
 188         tdm_caps_output caps;
 189         tdm_output *output_backend;
 190
 191         unsigned int pipe;
 192         tdm_output_dpms current_dpms_value;
 193         const tdm_output_mode *current_mode;
 194
 195         int regist_vblank_cb;
 196         int regist_commit_cb;
 197         int regist_change_cb;
 198         int regist_dpms_cb;
 199
 200         struct list_head layer_list;
 201         struct list_head capture_list;
 202         struct list_head vblank_handler_list;
 203         struct list_head output_commit_handler_list;
 204
 205         /* for layer commit */
 206         struct list_head layer_commit_handler_list;
 207         struct list_head pending_commit_handler_list;
 208         tdm_vblank *vblank;
 209         int waiting_vblank;
 210
 211         /* seperate list for multi-thread*/
 212         struct list_head change_handler_list_main;
 213         struct list_head change_handler_list_sub;
 214
 215         void **layers_ptr;
 216
 217         /* TODO: temp solution for handling DPMS things in sub-htread */
 218         tdm_event_loop_source *dpms_changed_timer;
 219 };
 220
 221 struct _tdm_private_layer {
 222         struct list_head link;
 223
 224         int index;
 225
 226         tdm_private_display *private_display;
 227         tdm_private_output *private_output;
 228
 229         tdm_caps_layer caps;
 230         tdm_layer *layer_backend;
 231
 232         tbm_surface_h pending_buffer;
 233         tbm_surface_h waiting_buffer;
 234         tbm_surface_h showing_buffer;
 235         tbm_surface_queue_h buffer_queue;
 236
 237         struct list_head capture_list;
 238
 239         unsigned int usable;
 240         unsigned int committing;
 241
 242         double fps_stamp;
 243         unsigned int fps_count;
 244 };
 245
 246 struct _tdm_private_pp {
 247         struct list_head link;
 248
 249         double stamp;
 250
 251         tdm_private_display *private_display;
 252
 253         tdm_pp *pp_backend;
 254
 255         struct list_head pending_buffer_list;
 256         struct list_head buffer_list;
 257
 258         tdm_info_pp info;
 259         pid_t owner_tid;
 260
 261         tdm_pp_done_handler done_func;
 262         void *done_user_data;
 263 };
 264
 265 struct _tdm_private_capture {
 266         struct list_head link;
 267         struct list_head display_link;
 268
 269         double stamp;
 270
 271         tdm_capture_target target;
 272
 273         tdm_private_display *private_display;
 274         tdm_private_output *private_output;
 275         tdm_private_layer *private_layer;
 276
 277         tdm_capture *capture_backend;
 278
 279         struct list_head pending_buffer_list;
 280         struct list_head buffer_list;
 281
 282         tdm_info_capture info;
 283         pid_t owner_tid;
 284
 285         tdm_capture_done_handler done_func;
 286         void *done_user_data;
 287 };
 288
 289 /* CAUTION:
 290  * Note that we don't need to (un)lock mutex to use this structure. If there is
 291  * no TDM thread, all TDM resources are protected by private_display's mutex.
 292  * If there is a TDM thread, this struct will be used only in a TDM thread.
 293  * So, we don't need to protect this structure by mutex. Not thread-safe.
 294  */
 295 struct _tdm_private_loop {
 296         /* TDM uses wl_event_loop to handle various event sources including the TDM
 297          * backend's fd.
 298          */
 299         struct wl_display *wl_display;
 300         struct wl_event_loop *wl_loop;
 301
 302         int backend_fd;
 303         tdm_event_loop_source *backend_source;
 304
 305         /* In event loop, all resources are accessed by this dpy.
 306          * CAUTION:
 307          * - DO NOT include other private structure in this structure because this
 308          *   struct is not protected by mutex.
 309          */
 310         tdm_display *dpy;
 311
 312         /* for handling TDM client requests */
 313         tdm_private_server *private_server;
 314
 315         /* To have a TDM event thread. If TDM_THREAD enviroment variable is not set
 316          * private_thread is NULL.
 317          */
 318         tdm_private_thread *private_thread;
 319 };
 320
 321 struct _tdm_private_vblank_handler {
 322         struct list_head link;
 323
 324         tdm_private_output *private_output;
 325         int interval;
 326         int sync;
 327         tdm_output_vblank_handler func;
 328         void *user_data;
 329
 330         pid_t owner_tid;
 331 };
 332
 333 struct _tdm_private_output_commit_handler {
 334         struct list_head link;
 335
 336         tdm_private_output *private_output;
 337         tdm_output_commit_handler func;
 338         void *user_data;
 339
 340         pid_t owner_tid;
 341 };
 342
 343 struct _tdm_private_layer_commit_handler {
 344         struct list_head link;
 345
 346         tdm_private_layer *private_layer;
 347         tdm_layer_commit_handler func;
 348         void *user_data;
 349 };
 350
 351 struct _tdm_private_change_handler {
 352         struct list_head link;
 353
 354         tdm_private_output *private_output;
 355         tdm_output_change_handler func;
 356         void *user_data;
 357
 358         pid_t owner_tid;
 359 };
 360
 361 typedef struct _tdm_buffer_info {
 362         tbm_surface_h buffer;
 363
 364         /* ref_count for backend */
 365         int backend_ref_count;
 366
 367         struct list_head release_funcs;
 368         struct list_head destroy_funcs;
 369
 370         struct list_head *list;
 371         struct list_head link;
 372 } tdm_buffer_info;
 373
 374 typedef struct _tdm_pp_private_buffer {
 375         tbm_surface_h src;
 376         tbm_surface_h dst;
 377         struct list_head link;
 378         struct list_head commit_link;
 379 } tdm_pp_private_buffer;
 380
 381 typedef struct _tdm_capture_private_buffer {
 382         tbm_surface_h buffer;
 383         struct list_head link;
 384         struct list_head commit_link;
 385 } tdm_capture_private_buffer;
 386
 387 int
 388 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin);
 389
 390 tdm_private_output *
 391 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp);
 392 tdm_private_pp *
 393 tdm_pp_find_stamp(tdm_private_display *private_display, double stamp);
 394 tdm_private_capture *
 395 tdm_capture_find_stamp(tdm_private_display *private_display, double stamp);
 396
 397 void
 398 tdm_output_cb_vblank(tdm_output *output_backend, unsigned int sequence,
 399                                          unsigned int tv_sec, unsigned int tv_usec, void *user_data);
 400 void
 401 tdm_output_cb_commit(tdm_output *output_backend, unsigned int sequence,
 402                                          unsigned int tv_sec, unsigned int tv_usec, void *user_data);
 403 void
 404 tdm_output_cb_status(tdm_output *output_backend, tdm_output_conn_status status,
 405                                          void *user_data);
 406 void
 407 tdm_output_cb_dpms(tdm_output *output_backend, tdm_output_dpms dpms,
 408                                    void *user_data);
 409 void
 410 tdm_pp_cb_done(tdm_pp *pp_backend, tbm_surface_h src, tbm_surface_h dst,
 411                            void *user_data);
 412 void
 413 tdm_capture_cb_done(tdm_capture *capture_backend, tbm_surface_h buffer,
 414                                         void *user_data);
 415 tdm_error
 416 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp);
 417
 418 void
 419 tdm_output_call_change_handler_internal(tdm_private_output *private_output,
 420                                                                                 struct list_head *change_handler_list,
 421                                                                                 tdm_output_change_type type,
 422                                                                                 tdm_value value,
 423                                                                                 int no_check_thread_id);
 424
 425 tdm_private_pp *
 426 tdm_pp_create_internal(tdm_private_display *private_display, tdm_error *error);
 427 void
 428 tdm_pp_destroy_internal(tdm_private_pp *private_pp);
 429
 430 tdm_private_capture *
 431 tdm_capture_create_output_internal(tdm_private_output *private_output,
 432                                                                    tdm_error *error);
 433 tdm_private_capture *
 434 tdm_capture_create_layer_internal(tdm_private_layer *private_layer,
 435                                                                   tdm_error *error);
 436 void
 437 tdm_capture_destroy_internal(tdm_private_capture *private_capture);
 438
 439 /* utility buffer functions for private */
 440 tdm_buffer_info*
 441 tdm_buffer_get_info(tbm_surface_h buffer);
 442 tbm_surface_h
 443 tdm_buffer_list_get_first_entry(struct list_head *list);
 444 void
 445 tdm_buffer_list_dump(struct list_head *list);
 446
 447 void
 448 tdm_buffer_remove_release_handler_internal(tbm_surface_h buffer);
 449
 450 /* event functions for private */
 451 tdm_error
 452 tdm_event_loop_init(tdm_private_display *private_display);
 453 void
 454 tdm_event_loop_deinit(tdm_private_display *private_display);
 455 void
 456 tdm_event_loop_create_backend_source(tdm_private_display *private_display);
 457 int
 458 tdm_event_loop_get_fd(tdm_private_display *private_display);
 459 tdm_error
 460 tdm_event_loop_dispatch(tdm_private_display *private_display);
 461 void
 462 tdm_event_loop_flush(tdm_private_display *private_display);
 463
 464 typedef enum {
 465         TDM_THREAD_CB_NONE,
 466         TDM_THREAD_CB_OUTPUT_COMMIT,
 467         TDM_THREAD_CB_OUTPUT_VBLANK,
 468         TDM_THREAD_CB_OUTPUT_STATUS,
 469         TDM_THREAD_CB_OUTPUT_DPMS,
 470         TDM_THREAD_CB_PP_DONE,
 471         TDM_THREAD_CB_CAPTURE_DONE,
 472         TDM_THREAD_CB_VBLANK_SW,
 473 } tdm_thread_cb_type;
 474
 475 typedef struct _tdm_thread_cb_base tdm_thread_cb_base;
 476 typedef struct _tdm_thread_cb_output_vblank tdm_thread_cb_output_commit;
 477 typedef struct _tdm_thread_cb_output_vblank tdm_thread_cb_output_vblank;
 478 typedef struct _tdm_thread_cb_output_status tdm_thread_cb_output_status;
 479 typedef struct _tdm_thread_cb_output_dpms tdm_thread_cb_output_dpms;
 480 typedef struct _tdm_thread_cb_pp_done tdm_thread_cb_pp_done;
 481 typedef struct _tdm_thread_cb_capture_done tdm_thread_cb_capture_done;
 482 typedef struct _tdm_thread_cb_vblank_sw tdm_thread_cb_vblank_sw;
 483
 484 struct _tdm_thread_cb_base {
 485         tdm_thread_cb_type type;
 486         unsigned int length;
 487 };
 488
 489 struct _tdm_thread_cb_output_vblank {
 490         tdm_thread_cb_base base;
 491         double output_stamp;
 492         unsigned int sequence;
 493         unsigned int tv_sec;
 494         unsigned int tv_usec;
 495         void *user_data;
 496 };
 497
 498 struct _tdm_thread_cb_output_status {
 499         tdm_thread_cb_base base;
 500         double output_stamp;
 501         tdm_output_conn_status status;
 502         void *user_data;
 503 };
 504
 505 struct _tdm_thread_cb_output_dpms {
 506         tdm_thread_cb_base base;
 507         double output_stamp;
 508         tdm_output_dpms dpms;
 509         void *user_data;
 510 };
 511
 512 struct _tdm_thread_cb_pp_done {
 513         tdm_thread_cb_base base;
 514         double pp_stamp;
 515         tbm_surface_h src;
 516         tbm_surface_h dst;
 517         void *user_data;
 518 };
 519
 520 struct _tdm_thread_cb_capture_done {
 521         tdm_thread_cb_base base;
 522         double capture_stamp;
 523         tbm_surface_h buffer;
 524         void *user_data;
 525 };
 526
 527 struct _tdm_thread_cb_vblank_sw {
 528         tdm_thread_cb_base base;
 529         double vblank_stamp;
 530 };
 531
 532 tdm_error
 533 tdm_thread_init(tdm_private_loop *private_loop);
 534 void
 535 tdm_thread_deinit(tdm_private_loop *private_loop);
 536 int
 537 tdm_thread_get_fd(tdm_private_loop *private_loop);
 538 tdm_error
 539 tdm_thread_send_cb(tdm_private_loop *private_loop, tdm_thread_cb_base *base);
 540 tdm_error
 541 tdm_thread_handle_cb(tdm_private_loop *private_loop);
 542 int
 543 tdm_thread_in_display_thread(pid_t tid);
 544 int
 545 tdm_thread_is_running(void);
 546
 547 tdm_error
 548 tdm_server_init(tdm_private_loop *private_loop);
 549 void
 550 tdm_server_deinit(tdm_private_loop *private_loop);
 551
 552 char *
 553 tdm_helper_dump_make_directory(const char *path, char *reply, int *len);
 554 void
 555 tdm_helper_dump_buffer_str(tbm_surface_h buffer, char *dir, char *str);
 556 double
 557 tdm_helper_get_time(void);
 558
 559 extern pthread_mutex_t tdm_mutex_check_lock;
 560 extern int tdm_mutex_locked;
 561 extern int tdm_dump_enable;
 562 extern char *tdm_debug_dump_dir;
 563
 564 #define _pthread_mutex_unlock(l) \
 565         do { \
 566                 if (tdm_debug_module & TDM_DEBUG_MUTEX) \
 567                         TDM_INFO("mutex unlock"); \
 568                 pthread_mutex_lock(&tdm_mutex_check_lock); \
 569                 tdm_mutex_locked = 0; \
 570                 pthread_mutex_unlock(&tdm_mutex_check_lock); \
 571                 pthread_mutex_unlock(l); \
 572         } while (0)
 573 #ifdef TDM_CONFIG_MUTEX_TIMEOUT
 574 #define MUTEX_TIMEOUT_SEC 5
 575 #define _pthread_mutex_lock(l) \
 576         do { \
 577                 if (tdm_debug_module & TDM_DEBUG_MUTEX) \
 578                         TDM_INFO("mutex lock"); \
 579                 struct timespec rtime; \
 580                 clock_gettime(CLOCK_REALTIME, &rtime); \
 581                 rtime.tv_sec += MUTEX_TIMEOUT_SEC; \
 582                 if (pthread_mutex_timedlock(l, &rtime)) { \
 583                         TDM_ERR("Mutex lock failed PID %d", getpid()); \
 584                         _pthread_mutex_unlock(l); \
 585                 } \
 586                 else { \
 587                         pthread_mutex_lock(&tdm_mutex_check_lock); \
 588                         tdm_mutex_locked = 1; \
 589                         pthread_mutex_unlock(&tdm_mutex_check_lock); \
 590                 } \
 591         } while (0)
 592 #else //TDM_CONFIG_MUTEX_TIMEOUT
 593 #define _pthread_mutex_lock(l) \
 594         do { \
 595                 if (tdm_debug_module & TDM_DEBUG_MUTEX) \
 596                         TDM_INFO("mutex lock"); \
 597                 pthread_mutex_lock(l); \
 598                 pthread_mutex_lock(&tdm_mutex_check_lock); \
 599                 tdm_mutex_locked = 1; \
 600                 pthread_mutex_unlock(&tdm_mutex_check_lock); \
 601         } while (0)
 602 #endif //TDM_CONFIG_MUTEX_TIMEOUT
 603 //#define TDM_MUTEX_IS_LOCKED() (tdm_mutex_locked == 1)
 604 static inline int TDM_MUTEX_IS_LOCKED(void)
 605 {
 606         int ret;
 607         /* if thread is not running, we don't need to consider mutex things. */
 608         if (!tdm_thread_is_running())
 609                 return 1;
 610         pthread_mutex_lock(&tdm_mutex_check_lock);
 611         ret = (tdm_mutex_locked == 1);
 612         pthread_mutex_unlock(&tdm_mutex_check_lock);
 613         return ret;
 614 }
 615
 616 #define tdm_display_lock(dpy)   _pthread_mutex_lock(&((tdm_private_display *)dpy)->lock)
 617 #define tdm_display_unlock(dpy)   _pthread_mutex_unlock(&((tdm_private_display *)dpy)->lock)
 618
 619 tdm_error
 620 tdm_display_update_output(tdm_private_display *private_display,
 621                                                   tdm_output *output_backend, int pipe);
 622 tdm_error
 623 tdm_display_enable_debug_module(const char*modules);
 624 tdm_error
 625 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len);
 626 tdm_error
 627 tdm_display_enable_path(const char *path);
 628 tdm_error
 629 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable);
 630 tdm_error
 631 tdm_display_enable_commit_per_vblank(tdm_private_display *private_display, int enable);
 632 tdm_error
 633 tdm_display_enable_fps(tdm_private_display *private_display, int enable);
 634
 635 void
 636 tdm_monitor_server_command(tdm_display *dpy, const char *options, char *reply, int *len);
 637
 638 #ifdef __cplusplus
 639 }
 640 #endif
 641
 642 #endif /* _TDM_PRIVATE_H_ */