custom_chart/da_chart.c

   1 /*
   2  *  DA probe
   3  *
   4  * Copyright (c) 2000 - 2013 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact:
   7  *
   8  * Jaewon Lim <jaewon81.lim@samsung.com>
   9  * Woojin Jung <woojin2.jung@samsung.com>
  10  * Juyoung Kim <j0.kim@samsung.com>
  11  * Anastasia Lyupa <a.lyupa@samsung.com>
  12  *
  13  * This library is free software; you can redistribute it and/or modify it under
  14  * the terms of the GNU Lesser General Public License as published by the
  15  * Free Software Foundation; either version 2.1 of the License, or (at your option)
  16  * any later version.
  17  *
  18  * This library is distributed in the hope that it will be useful, but WITHOUT ANY
  19  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  20  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
  21  * License for more details.
  22  *
  23  * You should have received a copy of the GNU Lesser General Public License
  24  * along with this library; if not, write to the Free Software Foundation, Inc., 51
  25  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  26  *
  27  * Contributors:
  28  * - S-Core Co., Ltd
  29  * - Samsung RnD Institute Russia
  30  *
  31  */
  32
  33 #include <pthread.h>
  34 #include <signal.h>                     // for signal
  35 #include <unistd.h>                     // for ualarm, sleep
  36 #include <sys/timerfd.h>        // for timerfd
  37 #include <stdio.h>
  38 #include <errno.h>                      // for errno
  39 #include <string.h>                     // for memset
  40 #include <stdint.h>                     // for uint64_t
  41
  42 #include "daprobe.h"
  43 #include "dahelper.h"
  44 #include "probeinfo.h"
  45 #define _USE_DA_
  46 #include "da_chart.h"
  47
  48 #include "binproto.h"
  49
  50 #define ERR_THREAD_CREATE_FAIL  -2001   // thread creation fail
  51
  52 #define MAX_TITLE_LENGTH                16
  53 #define MAX_CHART_HANDLE                10              // cannot be exceeded 10
  54 #define MAX_SERIES_PER_CHART    4               // cannot be exceeded 10
  55 // chart handle is  from 1 to 9
  56 // series handle is from 11 to 99
  57 // series handle 32 means that the series is 2nd series in 3rd chart.
  58 // zero value handle means error
  59
  60 // =====================================================================
  61 // global variable
  62 // =====================================================================
  63
  64 typedef struct _chart_interval_callback
  65 {
  66         da_handle chart_handle;
  67         da_handle series_handle;
  68         da_user_data_2_chart_data callback;
  69         void* user_data;
  70         struct _chart_interval_callback* next;
  71 } chart_interval_callback;
  72
  73 typedef struct
  74 {
  75         int                     timerfd;
  76         pthread_t       thread_handle;
  77         chart_interval_callback*        callback_list;
  78         pthread_mutex_t         list_mutex;
  79 } interval_manager;
  80
  81 typedef struct
  82 {
  83         int                     chart_handle_index;
  84         int                     series_handle_index[MAX_CHART_HANDLE];
  85         int                     interval_for_series[MAX_CHART_HANDLE][MAX_SERIES_PER_CHART];
  86         interval_manager        interval_10ms;
  87         interval_manager        interval_100ms;
  88         interval_manager        interval_1s;
  89 } chart_handle_maintainer;
  90
  91 chart_handle_maintainer chm;
  92
  93 __thread pid_t cur_thread = -1;
  94
  95
  96 // =====================================================================
  97 // internal macro definition
  98 // =====================================================================
  99
 100 #define DECLARE_CHART_VARIABLE                                  \
 101         da_handle __attribute__((unused)) ret = 0;      \
 102         probeInfo_t probeInfo;
 103
 104 // =====================================================================
 105 // timer thread routine for callback
 106 // =====================================================================
 107
 108 void* _chart_timerThread(void* data)
 109 {
 110         DECLARE_CHART_VARIABLE;
 111
 112         uint64_t exp;
 113         ssize_t readsize;
 114         chart_interval_callback* cur;
 115         float value;
 116         sigset_t profsigmask;
 117         interval_manager* pmanager = (interval_manager*)data;
 118
 119         probeBlockStart();
 120
 121         sigemptyset(&profsigmask);
 122         sigaddset(&profsigmask, SIGPROF);
 123         pthread_sigmask(SIG_BLOCK, &profsigmask, NULL);
 124
 125         while((readsize = read(pmanager->timerfd, &exp, sizeof(uint64_t))) > 0)
 126         {
 127                 pthread_mutex_lock(&pmanager->list_mutex);
 128
 129                 cur = pmanager->callback_list;
 130                 while(cur != NULL)
 131                 {
 132                         value = cur->callback(cur->user_data);
 133
 134                         setProbePoint(&probeInfo);
 135
 136                         PREPARE_LOCAL_BUF();
 137                         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 138                                           API_ID__chart_timerThread,
 139                                           "", 0);
 140                         PACK_COMMON_END(0, 0, 2);
 141                         PACK_CUSTOM(cur->series_handle, 0, "", 0, value);
 142                         FLUSH_LOCAL_BUF();
 143
 144                         cur = cur->next;
 145                 }
 146
 147                 pthread_mutex_unlock(&pmanager->list_mutex);
 148
 149                 sleep(0);
 150         }
 151
 152         probeBlockEnd();
 153
 154         return NULL;
 155 }
 156
 157 static int start_callback_thread(chart_interval interval)
 158 {
 159         int* timerfd = NULL;
 160         pthread_t* thread_handle = NULL;
 161         interval_manager* pman = NULL;
 162         struct itimerspec timevalue;
 163
 164         if(interval == CHART_INTERVAL_10MSEC)
 165         {
 166                 timerfd = &(chm.interval_10ms.timerfd);
 167                 thread_handle = &(chm.interval_10ms.thread_handle);
 168                 pman = &(chm.interval_10ms);
 169                 timevalue.it_value.tv_sec = 0;
 170                 timevalue.it_value.tv_nsec = 10000000L;
 171                 timevalue.it_interval.tv_sec = 0;
 172                 timevalue.it_interval.tv_nsec = 10000000L;
 173         }
 174         else if(interval == CHART_INTERVAL_100MSEC)
 175         {
 176                 timerfd = &(chm.interval_100ms.timerfd);
 177                 thread_handle = &(chm.interval_100ms.thread_handle);
 178                 pman = &(chm.interval_100ms);
 179                 timevalue.it_value.tv_sec = 0;
 180                 timevalue.it_value.tv_nsec = 100000000L;
 181                 timevalue.it_interval.tv_sec = 0;
 182                 timevalue.it_interval.tv_nsec = 100000000L;
 183         }
 184         else if(interval == CHART_INTERVAL_1SEC)
 185         {
 186                 timerfd = &(chm.interval_1s.timerfd);
 187                 thread_handle = &(chm.interval_1s.thread_handle);
 188                 pman = &(chm.interval_1s);
 189                 timevalue.it_value.tv_sec = 1;
 190                 timevalue.it_value.tv_nsec = 0;
 191                 timevalue.it_interval.tv_sec = 1;
 192                 timevalue.it_interval.tv_nsec = 0;
 193         }
 194         else
 195         {
 196                 return ERR_WRONG_PARAMETER;
 197         }
 198
 199         /**
 200          * FIXME: Type of pthread_t is undefined.
 201          * Comparing it with -1 is *very* bad
 202          */
 203         if (*timerfd != -1 || *thread_handle != (pthread_t) -1)
 204                 return 0;               // already thread exist
 205
 206         *timerfd = timerfd_create(CLOCK_REALTIME, 0);
 207         if (*timerfd == -1)
 208                 return errno;
 209
 210         if (timerfd_settime(*timerfd, 0, &timevalue, NULL) == -1)
 211                 return errno;
 212
 213         if (pthread_create(thread_handle, NULL, _chart_timerThread, pman) < 0)
 214                 return ERR_THREAD_CREATE_FAIL;
 215
 216         return 0;
 217 }
 218
 219
 220 // =====================================================================
 221 // internal utility function
 222 // =====================================================================
 223
 224 static void add_to_callback_list(chart_interval interval, da_handle charthandle, da_handle series_handle,
 225                 da_user_data_2_chart_data callback, void* user_data)
 226 {
 227         chart_interval_callback* newelem;
 228
 229         newelem = (chart_interval_callback*)malloc(sizeof(chart_interval_callback));
 230         newelem->chart_handle = charthandle;
 231         newelem->series_handle = series_handle;
 232         newelem->callback = callback;
 233         newelem->user_data = user_data;
 234
 235         chm.interval_for_series[charthandle][series_handle % 10] = interval;
 236
 237         switch(interval)
 238         {
 239         case CHART_INTERVAL_10MSEC:
 240                 pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 241                 newelem->next = chm.interval_10ms.callback_list;
 242                 chm.interval_10ms.callback_list = newelem;
 243                 pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 244                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 245                 break;
 246         case CHART_INTERVAL_100MSEC:
 247                 pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 248                 newelem->next = chm.interval_100ms.callback_list;
 249                 chm.interval_100ms.callback_list = newelem;
 250                 pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 251                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 252                 break;
 253         case CHART_INTERVAL_1SEC:
 254                 pthread_mutex_lock(&chm.interval_1s.list_mutex);
 255                 newelem->next = chm.interval_1s.callback_list;
 256                 chm.interval_1s.callback_list = newelem;
 257                 pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 258                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 259                 break;
 260         default:
 261                 free(newelem);
 262                 break;
 263         }
 264 }
 265
 266 static void remove_all_callback_list()
 267 {
 268         chart_interval_callback* cur;
 269
 270         pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 271         while(chm.interval_10ms.callback_list != NULL)
 272         {
 273                 cur = chm.interval_10ms.callback_list;
 274                 chm.interval_10ms.callback_list = cur->next;
 275                 free(cur);
 276         }
 277         pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 278
 279         pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 280         while(chm.interval_100ms.callback_list != NULL)
 281         {
 282                 cur = chm.interval_100ms.callback_list;
 283                 chm.interval_100ms.callback_list = cur->next;
 284                 free(cur);
 285         }
 286         pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 287
 288         pthread_mutex_lock(&chm.interval_1s.list_mutex);
 289         while(chm.interval_1s.callback_list != NULL)
 290         {
 291                 cur = chm.interval_1s.callback_list;
 292                 chm.interval_1s.callback_list = cur->next;
 293                 free(cur);
 294         }
 295         pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 296
 297         memset(&chm.interval_for_series, 0, sizeof(chm.interval_for_series));
 298         __sync_and_and_fetch(&(gTraceInfo.custom_chart_callback_count), 0);
 299 }
 300
 301 static void remove_from_callback_list(da_handle charthandle, da_handle series_handle)
 302 {
 303         chart_interval_callback *prev, *cur;
 304         chart_interval interval;
 305
 306         interval = chm.interval_for_series[charthandle][series_handle % 10];
 307         chm.interval_for_series[charthandle][series_handle % 10] = 0;
 308
 309         switch(interval)
 310         {
 311         case CHART_INTERVAL_10MSEC:
 312                 pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 313
 314                 prev = NULL;
 315                 cur = chm.interval_10ms.callback_list;
 316                 while(cur != NULL)
 317                 {
 318                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 319                         {
 320                                 if(prev)
 321                                         prev->next = cur->next;
 322                                 else
 323                                         chm.interval_10ms.callback_list = cur->next;
 324
 325                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 326                                 free(cur);
 327                                 break;
 328                         }
 329
 330                         prev = cur;
 331                         cur = cur->next;
 332                 }
 333
 334                 pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 335                 break;
 336         case CHART_INTERVAL_100MSEC:
 337                 pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 338
 339                 prev = NULL;
 340                 cur = chm.interval_100ms.callback_list;
 341                 while(cur != NULL)
 342                 {
 343                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 344                         {
 345                                 if(prev)
 346                                         prev->next = cur->next;
 347                                 else
 348                                         chm.interval_100ms.callback_list = cur->next;
 349
 350                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 351                                 free(cur);
 352                                 break;
 353                         }
 354
 355                         prev = cur;
 356                         cur = cur->next;
 357                 }
 358
 359                 pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 360                 break;
 361         case CHART_INTERVAL_1SEC:
 362                 pthread_mutex_lock(&chm.interval_1s.list_mutex);
 363
 364                 prev = NULL;
 365                 cur = chm.interval_1s.callback_list;
 366                 while(cur != NULL)
 367                 {
 368                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 369                         {
 370                                 if(prev)
 371                                         prev->next = cur->next;
 372                                 else
 373                                         chm.interval_1s.callback_list = cur->next;
 374
 375                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 376                                 free(cur);
 377                                 break;
 378                         }
 379
 380                         prev = cur;
 381                         cur = cur->next;
 382                 }
 383
 384                 pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 385                 break;
 386         default:
 387                 break;
 388         }
 389 }
 390
 391
 392 // =====================================================================
 393 // constructor and destructor functions
 394 // =====================================================================
 395
 396 void memory_initialize_hook(void);
 397 void (*__malloc_initialize_hook) (void) = memory_initialize_hook;
 398
 399 void __attribute__((constructor)) _init_lib()
 400 {
 401         probeBlockStart();
 402
 403         memset(&chm, 0, sizeof(chm));
 404         chm.interval_10ms.timerfd = -1;
 405         chm.interval_100ms.timerfd = -1;
 406         chm.interval_1s.timerfd = -1;
 407         chm.interval_10ms.thread_handle = -1;
 408         chm.interval_100ms.thread_handle = -1;
 409         chm.interval_1s.thread_handle = -1;
 410         pthread_mutex_init(&chm.interval_10ms.list_mutex, NULL);
 411         pthread_mutex_init(&chm.interval_100ms.list_mutex, NULL);
 412         pthread_mutex_init(&chm.interval_1s.list_mutex, NULL);
 413
 414         probeBlockEnd();
 415 }
 416
 417 void __attribute__((destructor)) _fini_lib()
 418 {
 419         probeBlockStart();
 420
 421         remove_all_callback_list();
 422         if (chm.interval_10ms.timerfd != -1)
 423                 close(chm.interval_10ms.timerfd);
 424         if (chm.interval_100ms.timerfd != -1)
 425                 close(chm.interval_100ms.timerfd);
 426         if (chm.interval_1s.timerfd != -1)
 427                 close(chm.interval_1s.timerfd);
 428         /*! Bad. Ugly. Unportable */
 429         if (chm.interval_10ms.thread_handle != (pthread_t) -1)
 430                 pthread_join(chm.interval_10ms.thread_handle, NULL);
 431         if (chm.interval_100ms.thread_handle != (pthread_t) -1)
 432                 pthread_join(chm.interval_100ms.thread_handle, NULL);
 433         if (chm.interval_1s.thread_handle != (pthread_t) -1)
 434                 pthread_join(chm.interval_1s.thread_handle, NULL);
 435
 436         probeBlockEnd();
 437 }
 438
 439
 440 // =====================================================================
 441 // api definition
 442 // =====================================================================
 443
 444 void da_mark(chart_color color, char* mark_text)
 445 {
 446         DECLARE_CHART_VARIABLE;
 447
 448         probeBlockStart();
 449
 450         setProbePoint(&probeInfo);
 451
 452         PREPARE_LOCAL_BUF();
 453         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 454                           API_ID_da_mark,
 455                           "dp", color, mark_text);
 456         PACK_COMMON_END(0, 0, 2);
 457         PACK_CUSTOM(0, 0, mark_text, color, 0.0f);
 458         FLUSH_LOCAL_BUF();
 459
 460         probeBlockEnd();
 461 }
 462
 463 da_handle da_create_chart(char* chart_name)
 464 {
 465         DECLARE_CHART_VARIABLE;
 466
 467         // check if there is available chart handle slot
 468         if(chm.chart_handle_index + 1 >= MAX_CHART_HANDLE)
 469                 return ERR_MAX_CHART_NUMBER;
 470
 471         // check if chart_name is null
 472         if(chart_name == NULL)
 473                 return ERR_WRONG_PARAMETER;
 474
 475         probeBlockStart();
 476         ret = ++(chm.chart_handle_index);
 477
 478         setProbePoint(&probeInfo);
 479
 480         PREPARE_LOCAL_BUF();
 481         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 482                           API_ID_da_create_chart,
 483                           "p", chart_name);
 484         PACK_COMMON_END(ret, 0, 2);
 485         PACK_CUSTOM(0, 0, chart_name, 0, 0.0f);
 486         FLUSH_LOCAL_BUF();
 487
 488         probeBlockEnd();
 489
 490         return ret;
 491 }
 492
 493 da_handle da_create_series(da_handle charthandle, char* seriesname,
 494                 series_type type, chart_color color)
 495 {
 496         DECLARE_CHART_VARIABLE;
 497
 498         // check if charthandle is valid handle or not
 499         if(charthandle <= 0 || charthandle > chm.chart_handle_index)
 500                 return ERR_WRONG_HANDLE;
 501
 502         // chech if extra parameter is valid
 503         if(seriesname == NULL)
 504                 return ERR_WRONG_PARAMETER;
 505
 506         // check if there is available series spot
 507         if(chm.series_handle_index[(int)charthandle] + 1 >= MAX_SERIES_PER_CHART)
 508                 return ERR_MAX_CHART_NUMBER;
 509
 510         probeBlockStart();
 511         ret = ++(chm.series_handle_index[charthandle]);
 512         ret += (10 * charthandle);
 513
 514         setProbePoint(&probeInfo);
 515
 516         PREPARE_LOCAL_BUF();
 517         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 518                           API_ID_da_create_series,
 519                           "dpdd",  charthandle, seriesname, type, color);
 520         PACK_COMMON_END(ret, 0, 2);
 521         PACK_CUSTOM(charthandle, type, seriesname, color, 0.0f);
 522         FLUSH_LOCAL_BUF();
 523
 524         probeBlockEnd();
 525
 526         return ret;
 527 }
 528
 529 da_handle da_create_default_series(da_handle charthandle, char* seriesname)
 530 {
 531         return da_create_series(charthandle, seriesname,
 532                         CHART_TYPE_AUTO, CHART_COLOR_AUTO);
 533 }
 534
 535 int da_set_callback(da_handle series_handle, da_user_data_2_chart_data callback,
 536                 void* data_addr, chart_interval interval)
 537 {
 538         int cindex, sindex;
 539         cindex = (int)(series_handle / 10);
 540         sindex = series_handle % 10;
 541
 542         // check series handle
 543         if(cindex <= 0 || cindex > chm.chart_handle_index)
 544                 return ERR_WRONG_HANDLE;
 545
 546         if(sindex > chm.series_handle_index[(int)cindex])
 547                 return ERR_WRONG_HANDLE;
 548
 549         // check rest parameters
 550         if(interval == CHART_NO_CYCLE && callback != NULL)
 551                 return ERR_WRONG_PARAMETER;
 552
 553         probeBlockStart();
 554
 555         // remove previously registered callback
 556         remove_from_callback_list(cindex, series_handle);
 557
 558         // register new callback
 559         if(callback != NULL)
 560         {
 561                 int re;
 562                 add_to_callback_list(interval, cindex, series_handle, callback, data_addr);
 563                 re = start_callback_thread(interval);
 564                 LOG("start callback thread return %d\n", re);
 565         }
 566         probeBlockEnd();
 567
 568         return 0;
 569 }
 570
 571 void da_log(da_handle series_handle, float uservalue)
 572 {
 573         DECLARE_CHART_VARIABLE;
 574
 575         // chech if series handle is valid
 576         int cindex, sindex;
 577         cindex = (int)(series_handle / 10);
 578         sindex = series_handle % 10;
 579
 580         if(cindex <= 0 || cindex > chm.chart_handle_index)
 581                 return;
 582
 583         if(sindex > chm.series_handle_index[(int)cindex])
 584                 return;
 585
 586         probeBlockStart();
 587
 588         setProbePoint(&probeInfo);
 589
 590         PREPARE_LOCAL_BUF();
 591         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 592                           API_ID_da_log,
 593                           "dw", series_handle, uservalue);
 594         PACK_COMMON_END(0, 0, 2);
 595         PACK_CUSTOM(series_handle, 0, "", 0, uservalue);
 596         FLUSH_LOCAL_BUF();
 597
 598         probeBlockEnd();
 599 }