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         if(*timerfd != -1 || *thread_handle != -1)
 200                 return 0;               // already thread exist
 201
 202         *timerfd = timerfd_create(CLOCK_REALTIME, 0);
 203         if(*timerfd == -1)
 204                 return errno;
 205
 206         if(timerfd_settime(*timerfd, 0, &timevalue, NULL) == -1)
 207                 return errno;
 208
 209         if(pthread_create(thread_handle, NULL, _chart_timerThread, pman) < 0)
 210                 return ERR_THREAD_CREATE_FAIL;
 211
 212         return 0;
 213 }
 214
 215
 216 // =====================================================================
 217 // internal utility function
 218 // =====================================================================
 219
 220 static void add_to_callback_list(chart_interval interval, da_handle charthandle, da_handle series_handle,
 221                 da_user_data_2_chart_data callback, void* user_data)
 222 {
 223         chart_interval_callback* newelem;
 224
 225         newelem = (chart_interval_callback*)malloc(sizeof(chart_interval_callback));
 226         newelem->chart_handle = charthandle;
 227         newelem->series_handle = series_handle;
 228         newelem->callback = callback;
 229         newelem->user_data = user_data;
 230
 231         chm.interval_for_series[charthandle][series_handle % 10] = interval;
 232
 233         switch(interval)
 234         {
 235         case CHART_INTERVAL_10MSEC:
 236                 pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 237                 newelem->next = chm.interval_10ms.callback_list;
 238                 chm.interval_10ms.callback_list = newelem;
 239                 pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 240                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 241                 break;
 242         case CHART_INTERVAL_100MSEC:
 243                 pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 244                 newelem->next = chm.interval_100ms.callback_list;
 245                 chm.interval_100ms.callback_list = newelem;
 246                 pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 247                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 248                 break;
 249         case CHART_INTERVAL_1SEC:
 250                 pthread_mutex_lock(&chm.interval_1s.list_mutex);
 251                 newelem->next = chm.interval_1s.callback_list;
 252                 chm.interval_1s.callback_list = newelem;
 253                 pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 254                 __sync_add_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 255                 break;
 256         default:
 257                 free(newelem);
 258                 break;
 259         }
 260 }
 261
 262 static void remove_all_callback_list()
 263 {
 264         chart_interval_callback* cur;
 265
 266         pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 267         while(chm.interval_10ms.callback_list != NULL)
 268         {
 269                 cur = chm.interval_10ms.callback_list;
 270                 chm.interval_10ms.callback_list = cur->next;
 271                 free(cur);
 272         }
 273         pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 274
 275         pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 276         while(chm.interval_100ms.callback_list != NULL)
 277         {
 278                 cur = chm.interval_100ms.callback_list;
 279                 chm.interval_100ms.callback_list = cur->next;
 280                 free(cur);
 281         }
 282         pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 283
 284         pthread_mutex_lock(&chm.interval_1s.list_mutex);
 285         while(chm.interval_1s.callback_list != NULL)
 286         {
 287                 cur = chm.interval_1s.callback_list;
 288                 chm.interval_1s.callback_list = cur->next;
 289                 free(cur);
 290         }
 291         pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 292
 293         memset(&chm.interval_for_series, 0, sizeof(chm.interval_for_series));
 294         __sync_and_and_fetch(&(gTraceInfo.custom_chart_callback_count), 0);
 295 }
 296
 297 static void remove_from_callback_list(da_handle charthandle, da_handle series_handle)
 298 {
 299         chart_interval_callback *prev, *cur;
 300         chart_interval interval;
 301
 302         interval = chm.interval_for_series[charthandle][series_handle % 10];
 303         chm.interval_for_series[charthandle][series_handle % 10] = 0;
 304
 305         switch(interval)
 306         {
 307         case CHART_INTERVAL_10MSEC:
 308                 pthread_mutex_lock(&chm.interval_10ms.list_mutex);
 309
 310                 prev = NULL;
 311                 cur = chm.interval_10ms.callback_list;
 312                 while(cur != NULL)
 313                 {
 314                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 315                         {
 316                                 if(prev)
 317                                         prev->next = cur->next;
 318                                 else
 319                                         chm.interval_10ms.callback_list = cur->next;
 320
 321                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 322                                 free(cur);
 323                                 break;
 324                         }
 325
 326                         prev = cur;
 327                         cur = cur->next;
 328                 }
 329
 330                 pthread_mutex_unlock(&chm.interval_10ms.list_mutex);
 331                 break;
 332         case CHART_INTERVAL_100MSEC:
 333                 pthread_mutex_lock(&chm.interval_100ms.list_mutex);
 334
 335                 prev = NULL;
 336                 cur = chm.interval_100ms.callback_list;
 337                 while(cur != NULL)
 338                 {
 339                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 340                         {
 341                                 if(prev)
 342                                         prev->next = cur->next;
 343                                 else
 344                                         chm.interval_100ms.callback_list = cur->next;
 345
 346                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 347                                 free(cur);
 348                                 break;
 349                         }
 350
 351                         prev = cur;
 352                         cur = cur->next;
 353                 }
 354
 355                 pthread_mutex_unlock(&chm.interval_100ms.list_mutex);
 356                 break;
 357         case CHART_INTERVAL_1SEC:
 358                 pthread_mutex_lock(&chm.interval_1s.list_mutex);
 359
 360                 prev = NULL;
 361                 cur = chm.interval_1s.callback_list;
 362                 while(cur != NULL)
 363                 {
 364                         if(cur->chart_handle == charthandle && cur->series_handle == series_handle)
 365                         {
 366                                 if(prev)
 367                                         prev->next = cur->next;
 368                                 else
 369                                         chm.interval_1s.callback_list = cur->next;
 370
 371                                 __sync_sub_and_fetch(&(gTraceInfo.custom_chart_callback_count), 1);
 372                                 free(cur);
 373                                 break;
 374                         }
 375
 376                         prev = cur;
 377                         cur = cur->next;
 378                 }
 379
 380                 pthread_mutex_unlock(&chm.interval_1s.list_mutex);
 381                 break;
 382         default:
 383                 break;
 384         }
 385 }
 386
 387
 388 // =====================================================================
 389 // constructor and destructor functions
 390 // =====================================================================
 391
 392 void memory_initialize_hook(void);
 393 void (*__malloc_initialize_hook) (void) = memory_initialize_hook;
 394
 395 void __attribute__((constructor)) _init_lib()
 396 {
 397         probeBlockStart();
 398
 399         memset(&chm, 0, sizeof(chm));
 400         chm.interval_10ms.timerfd = -1;
 401         chm.interval_100ms.timerfd = -1;
 402         chm.interval_1s.timerfd = -1;
 403         chm.interval_10ms.thread_handle = -1;
 404         chm.interval_100ms.thread_handle = -1;
 405         chm.interval_1s.thread_handle = -1;
 406         pthread_mutex_init(&chm.interval_10ms.list_mutex, NULL);
 407         pthread_mutex_init(&chm.interval_100ms.list_mutex, NULL);
 408         pthread_mutex_init(&chm.interval_1s.list_mutex, NULL);
 409
 410         probeBlockEnd();
 411 }
 412
 413 void __attribute__((destructor)) _fini_lib()
 414 {
 415         probeBlockStart();
 416
 417         remove_all_callback_list();
 418         if(chm.interval_10ms.timerfd != -1)
 419                 close(chm.interval_10ms.timerfd);
 420         if(chm.interval_100ms.timerfd != -1)
 421                 close(chm.interval_100ms.timerfd);
 422         if(chm.interval_1s.timerfd != -1)
 423                 close(chm.interval_1s.timerfd);
 424
 425         if(chm.interval_10ms.thread_handle != -1)
 426         {
 427                 pthread_join(chm.interval_10ms.thread_handle, NULL);
 428         }
 429         if(chm.interval_100ms.thread_handle != -1)
 430         {
 431                 pthread_join(chm.interval_100ms.thread_handle, NULL);
 432         }
 433         if(chm.interval_1s.thread_handle != -1)
 434         {
 435                 pthread_join(chm.interval_1s.thread_handle, NULL);
 436         }
 437
 438         probeBlockEnd();
 439 }
 440
 441
 442 // =====================================================================
 443 // api definition
 444 // =====================================================================
 445
 446 void da_mark(chart_color color, char* mark_text)
 447 {
 448         DECLARE_CHART_VARIABLE;
 449
 450         probeBlockStart();
 451
 452         setProbePoint(&probeInfo);
 453
 454         PREPARE_LOCAL_BUF();
 455         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 456                           API_ID_da_mark,
 457                           "dp", color, mark_text);
 458         PACK_COMMON_END(0, 0, 2);
 459         PACK_CUSTOM(0, 0, mark_text, color, 0.0f);
 460         FLUSH_LOCAL_BUF();
 461
 462         probeBlockEnd();
 463 }
 464
 465 da_handle da_create_chart(char* chart_name)
 466 {
 467         DECLARE_CHART_VARIABLE;
 468
 469         // check if there is available chart handle slot
 470         if(chm.chart_handle_index + 1 >= MAX_CHART_HANDLE)
 471                 return ERR_MAX_CHART_NUMBER;
 472
 473         // check if chart_name is null
 474         if(chart_name == NULL)
 475                 return ERR_WRONG_PARAMETER;
 476
 477         probeBlockStart();
 478         ret = ++(chm.chart_handle_index);
 479
 480         setProbePoint(&probeInfo);
 481
 482         PREPARE_LOCAL_BUF();
 483         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 484                           API_ID_da_create_chart,
 485                           "p", chart_name);
 486         PACK_COMMON_END(ret, 0, 2);
 487         PACK_CUSTOM(0, 0, chart_name, 0, 0.0f);
 488         FLUSH_LOCAL_BUF();
 489
 490         probeBlockEnd();
 491
 492         return ret;
 493 }
 494
 495 da_handle da_create_series(da_handle charthandle, char* seriesname,
 496                 series_type type, chart_color color)
 497 {
 498         DECLARE_CHART_VARIABLE;
 499
 500         // check if charthandle is valid handle or not
 501         if(charthandle <= 0 || charthandle > chm.chart_handle_index)
 502                 return ERR_WRONG_HANDLE;
 503
 504         // chech if extra parameter is valid
 505         if(seriesname == NULL)
 506                 return ERR_WRONG_PARAMETER;
 507
 508         // check if there is available series spot
 509         if(chm.series_handle_index[(int)charthandle] + 1 >= MAX_SERIES_PER_CHART)
 510                 return ERR_MAX_CHART_NUMBER;
 511
 512         probeBlockStart();
 513         ret = ++(chm.series_handle_index[charthandle]);
 514         ret += (10 * charthandle);
 515
 516         setProbePoint(&probeInfo);
 517
 518         PREPARE_LOCAL_BUF();
 519         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 520                           API_ID_da_create_series,
 521                           "dpdd",  charthandle, seriesname, type, color);
 522         PACK_COMMON_END(ret, 0, 2);
 523         PACK_CUSTOM(charthandle, type, seriesname, color, 0.0f);
 524         FLUSH_LOCAL_BUF();
 525
 526         probeBlockEnd();
 527
 528         return ret;
 529 }
 530
 531 da_handle da_create_default_series(da_handle charthandle, char* seriesname)
 532 {
 533         return da_create_series(charthandle, seriesname,
 534                         CHART_TYPE_AUTO, CHART_COLOR_AUTO);
 535 }
 536
 537 int da_set_callback(da_handle series_handle, da_user_data_2_chart_data callback,
 538                 void* data_addr, chart_interval interval)
 539 {
 540         int cindex, sindex;
 541         cindex = (int)(series_handle / 10);
 542         sindex = series_handle % 10;
 543
 544         // check series handle
 545         if(cindex <= 0 || cindex > chm.chart_handle_index)
 546                 return ERR_WRONG_HANDLE;
 547
 548         if(sindex > chm.series_handle_index[(int)cindex])
 549                 return ERR_WRONG_HANDLE;
 550
 551         // check rest parameters
 552         if(interval == CHART_NO_CYCLE && callback != NULL)
 553                 return ERR_WRONG_PARAMETER;
 554
 555         probeBlockStart();
 556
 557         // remove previously registered callback
 558         remove_from_callback_list(cindex, series_handle);
 559
 560         // register new callback
 561         if(callback != NULL)
 562         {
 563                 int re;
 564                 add_to_callback_list(interval, cindex, series_handle, callback, data_addr);
 565                 re = start_callback_thread(interval);
 566                 LOG("start callback thread return %d\n", re);
 567         }
 568         probeBlockEnd();
 569
 570         return 0;
 571 }
 572
 573 void da_log(da_handle series_handle, float uservalue)
 574 {
 575         DECLARE_CHART_VARIABLE;
 576
 577         // chech if series handle is valid
 578         int cindex, sindex;
 579         cindex = (int)(series_handle / 10);
 580         sindex = series_handle % 10;
 581
 582         if(cindex <= 0 || cindex > chm.chart_handle_index)
 583                 return;
 584
 585         if(sindex > chm.series_handle_index[(int)cindex])
 586                 return;
 587
 588         probeBlockStart();
 589
 590         setProbePoint(&probeInfo);
 591
 592         PREPARE_LOCAL_BUF();
 593         PACK_COMMON_BEGIN(MSG_PROBE_CUSTOM,
 594                           API_ID_da_log,
 595                           "dw", series_handle, uservalue);
 596         PACK_COMMON_END(0, 0, 2);
 597         PACK_CUSTOM(series_handle, 0, "", 0, uservalue);
 598         FLUSH_LOCAL_BUF();
 599
 600         probeBlockEnd();
 601 }