src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.3.1  Copyright by Tobi Oetiker, 1997-2008
   3  *****************************************************************************
   4  * rrd_info  Get Information about the configuration of an RRD
   5  *****************************************************************************/
   6
   7 #include "rrd_tool.h"
   8 #include "rrd_rpncalc.h"
   9 #include <stdarg.h>
  10
  11 /* proto */
  12 rrd_info_t *rrd_info(
  13     int,
  14     char **);
  15 rrd_info_t *rrd_info_r(
  16     char *filename);
  17
  18 /* allocate memory for string */
  19 char     *sprintf_alloc(
  20     char *fmt,
  21     ...)
  22 {
  23     int       maxlen = 1024 + strlen(fmt);
  24     char     *str = NULL;
  25     va_list   argp;
  26     str = malloc(sizeof(char) * (maxlen + 1));
  27     if (str != NULL) {
  28         va_start(argp, fmt);
  29 #ifdef HAVE_VSNPRINTF
  30         vsnprintf(str, maxlen, fmt, argp);
  31 #else
  32         vsprintf(str, fmt, argp);
  33 #endif
  34     }
  35     va_end(argp);
  36     return str;
  37 }
  38
  39 /* the function formerly known as push was renamed to info_push and later
  40  * rrd_info_push because it is now used outside the scope of this file */
  41 rrd_info_t
  42     * rrd_info_push(rrd_info_t * info,
  43                     char *key, rrd_info_type_t type, rrd_infoval_t value)
  44 {
  45     rrd_info_t *next;
  46
  47     next = malloc(sizeof(*next));
  48     next->next = (rrd_info_t *) 0;
  49     if (info)
  50         info->next = next;
  51     next->type = type;
  52     next->key = key;
  53     switch (type) {
  54     case RD_I_VAL:
  55         next->value.u_val = value.u_val;
  56         break;
  57     case RD_I_CNT:
  58         next->value.u_cnt = value.u_cnt;
  59         break;
  60     case RD_I_INT:
  61         next->value.u_int = value.u_int;
  62         break;
  63     case RD_I_STR:
  64         next->value.u_str = malloc(sizeof(char) * (strlen(value.u_str) + 1));
  65         strcpy(next->value.u_str, value.u_str);
  66         break;
  67     case RD_I_BLO:
  68         next->value.u_blo.size = value.u_blo.size;
  69         next->value.u_blo.ptr =
  70             malloc(sizeof(unsigned char) * value.u_blo.size);
  71         memcpy(next->value.u_blo.ptr, value.u_blo.ptr, value.u_blo.size);
  72         break;
  73     }
  74     return (next);
  75 }
  76
  77
  78 rrd_info_t *rrd_info(
  79     int argc,
  80     char **argv)
  81 {
  82     rrd_info_t *info;
  83
  84     if (argc < 2) {
  85         rrd_set_error("please specify an rrd");
  86         return NULL;
  87     }
  88
  89     info = rrd_info_r(argv[1]);
  90
  91     return (info);
  92 }
  93
  94
  95
  96 rrd_info_t *rrd_info_r(
  97     char *filename)
  98 {
  99     unsigned int i, ii = 0;
 100     rrd_t     rrd;
 101     rrd_info_t *data = NULL, *cd;
 102     rrd_infoval_t info;
 103     rrd_file_t *rrd_file;
 104     enum cf_en current_cf;
 105     enum dst_en current_ds;
 106
 107     rrd_file = rrd_open(filename, &rrd, RRD_READONLY);
 108     if (rrd_file == NULL)
 109         goto err_free;
 110
 111     info.u_str = filename;
 112     cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 113     data = cd;
 114
 115     info.u_str = rrd.stat_head->version;
 116     cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 117
 118     info.u_cnt = rrd.stat_head->pdp_step;
 119     cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 120
 121     info.u_cnt = rrd.live_head->last_up;
 122     cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 123
 124     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 125
 126         info.u_str = rrd.ds_def[i].dst;
 127         cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
 128                                              rrd.ds_def[i].ds_nam),
 129                            RD_I_STR, info);
 130
 131         current_ds = dst_conv(rrd.ds_def[i].dst);
 132         switch (current_ds) {
 133         case DST_CDEF:
 134         {
 135             char     *buffer = NULL;
 136
 137             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 138                             rrd.ds_def, &buffer);
 139             info.u_str = buffer;
 140             cd = rrd_info_push(cd,
 141                                sprintf_alloc("ds[%s].cdef",
 142                                              rrd.ds_def[i].ds_nam), RD_I_STR,
 143                                info);
 144             free(buffer);
 145         }
 146             break;
 147         default:
 148             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 149             cd = rrd_info_push(cd,
 150                                sprintf_alloc("ds[%s].minimal_heartbeat",
 151                                              rrd.ds_def[i].ds_nam), RD_I_CNT,
 152                                info);
 153
 154             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 155             cd = rrd_info_push(cd,
 156                                sprintf_alloc("ds[%s].min",
 157                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 158                                info);
 159
 160             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 161             cd = rrd_info_push(cd,
 162                                sprintf_alloc("ds[%s].max",
 163                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 164                                info);
 165             break;
 166         }
 167
 168         info.u_str = rrd.pdp_prep[i].last_ds;
 169         cd = rrd_info_push(cd,
 170                            sprintf_alloc("ds[%s].last_ds",
 171                                          rrd.ds_def[i].ds_nam), RD_I_STR,
 172                            info);
 173
 174         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 175         cd = rrd_info_push(cd,
 176                            sprintf_alloc("ds[%s].value",
 177                                          rrd.ds_def[i].ds_nam), RD_I_VAL,
 178                            info);
 179
 180         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 181         cd = rrd_info_push(cd,
 182                            sprintf_alloc("ds[%s].unknown_sec",
 183                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 184                            info);
 185     }
 186
 187     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 188         info.u_str = rrd.rra_def[i].cf_nam;
 189         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
 190                            info);
 191         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 192
 193         info.u_cnt = rrd.rra_def[i].row_cnt;
 194         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
 195                            info);
 196
 197         info.u_cnt = rrd.rra_ptr[i].cur_row;
 198         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
 199                            info);
 200
 201         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 202         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
 203                            RD_I_CNT, info);
 204
 205         switch (current_cf) {
 206         case CF_HWPREDICT:
 207         case CF_MHWPREDICT:
 208             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 209             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
 210                                RD_I_VAL, info);
 211             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 212             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 213                                info);
 214             break;
 215         case CF_SEASONAL:
 216         case CF_DEVSEASONAL:
 217             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 218             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
 219                                RD_I_VAL, info);
 220             if (atoi(rrd.stat_head->version) >= 4) {
 221                 info.u_val =
 222                     rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
 223                 cd = rrd_info_push(cd,
 224                                    sprintf_alloc("rra[%d].smoothing_window",
 225                                                  i), RD_I_VAL, info);
 226             }
 227             break;
 228         case CF_FAILURES:
 229             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 230             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 231                                RD_I_VAL, info);
 232             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 233             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 234                                RD_I_VAL, info);
 235             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 236             cd = rrd_info_push(cd,
 237                                sprintf_alloc("rra[%d].failure_threshold", i),
 238                                RD_I_CNT, info);
 239             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 240             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 241                                RD_I_CNT, info);
 242             break;
 243         case CF_DEVPREDICT:
 244             break;
 245         default:
 246             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 247             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 248                                info);
 249             break;
 250         }
 251
 252         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 253             switch (current_cf) {
 254             case CF_HWPREDICT:
 255             case CF_MHWPREDICT:
 256                 info.u_val =
 257                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 258                                  ii].scratch[CDP_hw_intercept].u_val;
 259                 cd = rrd_info_push(cd,
 260                                    sprintf_alloc
 261                                    ("rra[%d].cdp_prep[%d].intercept", i, ii),
 262                                    RD_I_VAL, info);
 263                 info.u_val =
 264                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 265                                  ii].scratch[CDP_hw_slope].u_val;
 266                 cd = rrd_info_push(cd,
 267                                    sprintf_alloc("rra[%d].cdp_prep[%d].slope",
 268                                                  i, ii), RD_I_VAL, info);
 269                 info.u_cnt =
 270                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 271                                  ii].scratch[CDP_null_count].u_cnt;
 272                 cd = rrd_info_push(cd,
 273                                    sprintf_alloc
 274                                    ("rra[%d].cdp_prep[%d].NaN_count", i, ii),
 275                                    RD_I_CNT, info);
 276                 break;
 277             case CF_SEASONAL:
 278                 info.u_val =
 279                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 280                                  ii].scratch[CDP_hw_seasonal].u_val;
 281                 cd = rrd_info_push(cd,
 282                                    sprintf_alloc
 283                                    ("rra[%d].cdp_prep[%d].seasonal", i, ii),
 284                                    RD_I_VAL, info);
 285                 break;
 286             case CF_DEVSEASONAL:
 287                 info.u_val =
 288                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 289                                  ii].scratch[CDP_seasonal_deviation].u_val;
 290                 cd = rrd_info_push(cd,
 291                                    sprintf_alloc
 292                                    ("rra[%d].cdp_prep[%d].deviation", i, ii),
 293                                    RD_I_VAL, info);
 294                 break;
 295             case CF_DEVPREDICT:
 296                 break;
 297             case CF_FAILURES:
 298             {
 299                 unsigned short j;
 300                 char     *violations_array;
 301                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 302
 303                 violations_array =
 304                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 305                                           ii].scratch;
 306                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 307                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 308                 history[j] = '\0';
 309                 info.u_str = history;
 310                 cd = rrd_info_push(cd,
 311                                    sprintf_alloc
 312                                    ("rra[%d].cdp_prep[%d].history", i, ii),
 313                                    RD_I_STR, info);
 314             }
 315                 break;
 316             default:
 317                 info.u_val =
 318                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 319                                  ii].scratch[CDP_val].u_val;
 320                 cd = rrd_info_push(cd,
 321                                    sprintf_alloc("rra[%d].cdp_prep[%d].value",
 322                                                  i, ii), RD_I_VAL, info);
 323                 info.u_cnt =
 324                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 325                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 326                 cd = rrd_info_push(cd,
 327                                    sprintf_alloc
 328                                    ("rra[%d].cdp_prep[%d].unknown_datapoints",
 329                                     i, ii), RD_I_CNT, info);
 330                 break;
 331             }
 332         }
 333     }
 334
 335     rrd_close(rrd_file);
 336   err_free:
 337     rrd_free(&rrd);
 338     return (data);
 339 }
 340
 341
 342 void rrd_info_print(
 343     rrd_info_t * data)
 344 {
 345     while (data) {
 346         printf("%s = ", data->key);
 347
 348         switch (data->type) {
 349         case RD_I_VAL:
 350             if (isnan(data->value.u_val))
 351                 printf("NaN\n");
 352             else
 353                 printf("%0.10e\n", data->value.u_val);
 354             break;
 355         case RD_I_CNT:
 356             printf("%lu\n", data->value.u_cnt);
 357             break;
 358         case RD_I_INT:
 359             printf("%d\n", data->value.u_int);
 360             break;
 361         case RD_I_STR:
 362             printf("\"%s\"\n", data->value.u_str);
 363             break;
 364         case RD_I_BLO:
 365             printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
 366             fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
 367             break;
 368         }
 369         data = data->next;
 370     }
 371 }
 372
 373 void rrd_info_free(
 374     rrd_info_t * data)
 375 {
 376     rrd_info_t *save;
 377
 378     while (data) {
 379         save = data;
 380         if (data->key) {
 381             if (data->type == RD_I_STR) {
 382                 free(data->value.u_str);
 383             }
 384             if (data->type == RD_I_BLO) {
 385                 free(data->value.u_blo.ptr);
 386             }
 387             free(data->key);
 388         }
 389         data = data->next;
 390         free(save);
 391     }
 392 }