src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.23  Copyright by Tobi Oetiker, 1997-2007
   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 info_t *rrd_info(int, char **);
  13 info_t *rrd_info_r(char *filename);
  14
  15 /* allocate memory for string */
  16 char *
  17 sprintf_alloc(char *fmt, ...) {
  18 #ifdef HAVE_VSNPRINTF
  19     int maxlen = 50;
  20 #else
  21     int maxlen = 1000;
  22 #endif
  23     char *str = NULL;
  24     va_list argp;
  25     str = malloc(sizeof(char)*(strlen(fmt)+maxlen));
  26     if (str != NULL) {
  27         va_start(argp, fmt);
  28 #ifdef HAVE_VSNPRINTF
  29         vsnprintf(str, maxlen-1, fmt, argp);
  30 #else
  31         vsprintf(str, fmt, argp);
  32 #endif
  33     }
  34     va_end(argp);
  35     return str;
  36 }
  37 /* the function formerly known as push was renamed info_push because
  38  * it is now used outside the scope of this file */
  39 info_t
  40 *info_push(info_t *info, char *key, enum info_type type, infoval value){
  41     info_t *next;
  42     next = malloc(sizeof(*next));
  43     next->next = (info_t *) 0;
  44     if( info )
  45         info->next = next;
  46     next->type = type;
  47     next->key  = key;
  48     switch (type) {
  49     case RD_I_VAL:
  50         next->value.u_val = value.u_val;
  51         break;
  52     case RD_I_CNT:
  53         next->value.u_cnt = value.u_cnt;
  54         break;
  55     case RD_I_INT:
  56         next->value.u_int = value.u_int;
  57         break;
  58     case RD_I_STR:
  59         next->value.u_str = malloc(sizeof(char)*(strlen(value.u_str)+1));
  60         strcpy(next->value.u_str,value.u_str);
  61         break;
  62     }
  63     return(next);
  64 }
  65
  66
  67 info_t *
  68 rrd_info(int argc, char **argv) {
  69     info_t             *info;
  70
  71     if(argc < 2){
  72         rrd_set_error("please specify an rrd");
  73         return NULL;
  74     }
  75
  76     info = rrd_info_r(argv[1]);
  77
  78     return(info);
  79 }
  80
  81
  82
  83 info_t *
  84 rrd_info_r(char *filename) {
  85     unsigned int i,ii=0;
  86     rrd_t        rrd;
  87     info_t       *data,*cd;
  88     infoval      info;
  89     rrd_file_t*  rrd_file;
  90         enum cf_en   current_cf;
  91         enum dst_en  current_ds;
  92
  93     rrd_file = rrd_open(filename,&rrd, RRD_READONLY);
  94     if (rrd_file == NULL) {
  95         return(NULL);
  96     }
  97     close(rrd_file->fd);
  98
  99     info.u_str=filename;
 100     cd=info_push(NULL,sprintf_alloc("filename"),    RD_I_STR, info);
 101     data=cd;
 102
 103     info.u_str=rrd.stat_head->version;
 104     cd=info_push(cd,sprintf_alloc("rrd_version"),    RD_I_STR, info);
 105
 106     info.u_cnt=rrd.stat_head->pdp_step;
 107     cd=info_push(cd,sprintf_alloc("step"),       RD_I_CNT, info);
 108
 109     info.u_cnt=rrd.live_head->last_up;
 110     cd=info_push(cd,sprintf_alloc("last_update"), RD_I_CNT, info);
 111
 112     for(i=0;i<rrd.stat_head->ds_cnt;i++){
 113
 114         info.u_str=rrd.ds_def[i].dst;
 115         cd=info_push(cd,sprintf_alloc("ds[%s].type",             rrd.ds_def[i].ds_nam), RD_I_STR, info);
 116
 117         current_ds = dst_conv(rrd.ds_def[i].dst);
 118     switch (current_ds) {
 119            case DST_CDEF:
 120                   {
 121                   char *buffer = NULL;
 122                   rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 123                          rrd.ds_def, &buffer);
 124                   info.u_str = buffer;
 125                   cd=info_push(cd,sprintf_alloc("ds[%s].cdef",rrd.ds_def[i].ds_nam),RD_I_STR,info);
 126                   free(buffer);
 127                   }
 128                   break;
 129            default:
 130            info.u_cnt=rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 131            cd=info_push(cd,sprintf_alloc("ds[%s].minimal_heartbeat",rrd.ds_def[i].ds_nam), RD_I_CNT, info);
 132
 133            info.u_val=rrd.ds_def[i].par[DS_min_val].u_val;
 134            cd=info_push(cd,sprintf_alloc("ds[%s].min",rrd.ds_def[i].ds_nam), RD_I_VAL, info);
 135
 136            info.u_val=rrd.ds_def[i].par[DS_max_val].u_val;
 137            cd=info_push(cd,sprintf_alloc("ds[%s].max",rrd.ds_def[i].ds_nam), RD_I_VAL, info);
 138            break;
 139         }
 140
 141         info.u_str=rrd.pdp_prep[i].last_ds;
 142         cd=info_push(cd,sprintf_alloc("ds[%s].last_ds",          rrd.ds_def[i].ds_nam), RD_I_STR, info);
 143
 144         info.u_val=rrd.pdp_prep[i].scratch[PDP_val].u_val;
 145         cd=info_push(cd,sprintf_alloc("ds[%s].value",            rrd.ds_def[i].ds_nam), RD_I_VAL, info);
 146
 147         info.u_cnt=rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 148         cd=info_push(cd,sprintf_alloc("ds[%s].unknown_sec",      rrd.ds_def[i].ds_nam), RD_I_CNT, info);
 149     }
 150
 151     for(i=0;i<rrd.stat_head->rra_cnt;i++){
 152         info.u_str=rrd.rra_def[i].cf_nam;
 153         cd=info_push(cd,sprintf_alloc("rra[%d].cf",         i),  RD_I_STR,   info);
 154         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 155
 156         info.u_cnt=rrd.rra_def[i].row_cnt;
 157         cd=info_push(cd,sprintf_alloc("rra[%d].rows",i),  RD_I_CNT,   info);
 158
 159         info.u_cnt=rrd.rra_def[i].pdp_cnt;
 160         cd=info_push(cd,sprintf_alloc("rra[%d].pdp_per_row",i),  RD_I_CNT,   info);
 161
 162         switch(current_cf)
 163         {
 164            case CF_HWPREDICT:
 165                   info.u_val=rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 166                   cd=info_push(cd,sprintf_alloc("rra[%d].alpha",i),RD_I_VAL,info);
 167                   info.u_val=rrd.rra_def[i].par[RRA_hw_beta].u_val;
 168                   cd=info_push(cd,sprintf_alloc("rra[%d].beta",i),RD_I_VAL,info);
 169                   break;
 170            case CF_SEASONAL:
 171            case CF_DEVSEASONAL:
 172                   info.u_val=rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 173                   cd=info_push(cd,sprintf_alloc("rra[%d].gamma",i),RD_I_VAL,info);
 174                   break;
 175            case CF_FAILURES:
 176                   info.u_val=rrd.rra_def[i].par[RRA_delta_pos].u_val;
 177                   cd=info_push(cd,sprintf_alloc("rra[%d].delta_pos",i),RD_I_VAL,info);
 178                   info.u_val=rrd.rra_def[i].par[RRA_delta_neg].u_val;
 179                   cd=info_push(cd,sprintf_alloc("rra[%d].delta_neg",i),RD_I_VAL,info);
 180                   info.u_cnt=rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 181                   cd=info_push(cd,sprintf_alloc("rra[%d].failure_threshold",i),RD_I_CNT,info);
 182                   info.u_cnt=rrd.rra_def[i].par[RRA_window_len].u_cnt;
 183                   cd=info_push(cd,sprintf_alloc("rra[%d].window_length",i),RD_I_CNT,info);
 184                   break;
 185            case CF_DEVPREDICT:
 186                   break;
 187            default:
 188                   info.u_val=rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 189                   cd=info_push(cd,sprintf_alloc("rra[%d].xff",i),RD_I_VAL,info);
 190                   break;
 191         }
 192
 193         for(ii=0;ii<rrd.stat_head->ds_cnt;ii++){
 194         switch(current_cf)
 195                 {
 196                 case CF_HWPREDICT:
 197             info.u_val=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_hw_intercept].u_val;
 198             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].intercept",i,ii), RD_I_VAL, info);
 199             info.u_val=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_hw_slope].u_val;
 200             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].slope",i,ii), RD_I_VAL, info);
 201             info.u_cnt=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_null_count].u_cnt;
 202             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].NaN_count",i,ii), RD_I_CNT, info);
 203                    break;
 204                 case CF_SEASONAL:
 205             info.u_val=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_hw_seasonal].u_val;
 206             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].seasonal",i,ii), RD_I_VAL, info);
 207                    break;
 208                 case CF_DEVSEASONAL:
 209             info.u_val=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_seasonal_deviation].u_val;
 210             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].deviation",i,ii), RD_I_VAL, info);
 211                    break;
 212                 case CF_DEVPREDICT:
 213                    break;
 214                 case CF_FAILURES:
 215                    {
 216                           unsigned short j;
 217                           char *violations_array;
 218                           char history[MAX_FAILURES_WINDOW_LEN+1];
 219                           violations_array = (char*) rrd.cdp_prep[i*rrd.stat_head->ds_cnt +ii].scratch;
 220                           for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 221                                  history[j] = (violations_array[j] == 1) ? '1' : '0';
 222                       history[j] = '\0';
 223                       info.u_str = history;
 224                           cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].history",i,ii), RD_I_STR, info);
 225                    }
 226                    break;
 227                 default:
 228             info.u_val=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_val].u_val;
 229             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].value",i,ii), RD_I_VAL, info);
 230             info.u_cnt=rrd.cdp_prep[i*rrd.stat_head->ds_cnt+ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 231             cd=info_push(cd,sprintf_alloc("rra[%d].cdp_prep[%d].unknown_datapoints",i,ii), RD_I_CNT, info);
 232                    break;
 233         }
 234     }
 235         }
 236         rrd_free(&rrd);
 237     rrd_close(rrd_file);
 238     return(data);
 239
 240 }