git.m6w6.name Git - m6w6/libmemcached/blob - lib/memcached_stats.c

   1 /*
   2 */
   3
   4 #include "common.h"
   5
   6 static char *memcached_stat_keys[] = {
   7   "pid",
   8   "uptime",
   9   "time",
  10   "version",
  11   "pointer_size",
  12   "rusage_user",
  13   "rusage_system",
  14   "rusage_user_seconds",
  15   "rusage_user_microseconds",
  16   "rusage_system_seconds",
  17   "rusage_system_microseconds",
  18   "curr_items",
  19   "total_items",
  20   "bytes",
  21   "curr_connections",
  22   "total_connections",
  23   "connection_structures",
  24   "cmd_get",
  25   "cmd_set",
  26   "get_hits",
  27   "get_misses",
  28   "evictions",
  29   "bytes_read",
  30   "bytes_written",
  31   "limit_maxbytes",
  32   "threads",
  33   NULL
  34 };
  35
  36
  37 static void set_data(memcached_stat_st *stat, char *key, char *value)
  38 {
  39   if (!memcmp("pid", key, strlen("pid")))
  40   {
  41     stat->pid= strtol(value, (char **)NULL, 10);
  42   }
  43   else if (!memcmp("uptime", key, strlen("uptime")))
  44   {
  45     stat->uptime= strtol(value, (char **)NULL, 10);
  46   }
  47   else if (!memcmp("time", key, strlen("time")))
  48   {
  49     stat->time= strtoll(value, (char **)NULL, 10);
  50   }
  51   else if (!memcmp("version", key, strlen("version")))
  52   {
  53     memcpy(stat->version, value, 8);
  54   }
  55   else if (!memcmp("pointer_size", key, strlen("pointer_size")))
  56   {
  57     stat->pointer_size= strtoll(value, (char **)NULL, 10);
  58   }
  59   else if (!memcmp("rusage_user", key, strlen("rusage_user")))
  60   {
  61     stat->rusage_user= strtoll(value, (char **)NULL, 10);
  62   }
  63   else if (!memcmp("rusage_system", key, strlen("rusage_system")))
  64   {
  65     stat->rusage_system= strtoll(value, (char **)NULL, 10);
  66   }
  67   else if (!memcmp("rusage_user_seconds", key, strlen("rusage_user_seconds")))
  68   {
  69     stat->rusage_user_seconds= strtoll(value, (char **)NULL, 10);
  70   }
  71   else if (!memcmp("rusage_user_microseconds", key, strlen("rusage_user_microseconds")))
  72   {
  73     stat->rusage_user_microseconds= strtoll(value, (char **)NULL, 10);
  74   }
  75   else if (!memcmp("rusage_system_seconds", key, strlen("rusage_system_seconds")))
  76   {
  77     stat->rusage_system_seconds= strtoll(value, (char **)NULL, 10);
  78   }
  79   else if (!memcmp("rusage_system_microseconds", key, strlen("rusage_system_microseconds")))
  80   {
  81     stat->rusage_system_microseconds= strtoll(value, (char **)NULL, 10);
  82   }
  83   else if (!memcmp("curr_items", key, strlen("curr_items")))
  84   {
  85     stat->curr_items= strtoll(value, (char **)NULL, 10);
  86   }
  87   else if (!memcmp("total_items", key, strlen("total_items")))
  88   {
  89     stat->total_items= strtoll(value, (char **)NULL, 10);
  90   }
  91   else if (!memcmp("bytes", key, strlen("bytes")))
  92   {
  93     stat->bytes= strtoll(value, (char **)NULL, 10);
  94   }
  95   else if (!memcmp("curr_connections", key, strlen("curr_connections")))
  96   {
  97     stat->curr_connections= strtoll(value, (char **)NULL, 10);
  98   }
  99   else if (!memcmp("total_connections", key, strlen("total_connections")))
 100   {
 101     stat->total_connections= strtoll(value, (char **)NULL, 10);
 102   }
 103   else if (!memcmp("connection_structures", key, strlen("connection_structures")))
 104   {
 105     stat->connection_structures= strtoll(value, (char **)NULL, 10);
 106   }
 107   else if (!memcmp("cmd_get", key, strlen("cmd_get")))
 108   {
 109     stat->cmd_get= strtoll(value, (char **)NULL, 10);
 110   }
 111   else if (!memcmp("cmd_set", key, strlen("cmd_set")))
 112   {
 113     stat->cmd_set= strtoll(value, (char **)NULL, 10);
 114   }
 115   else if (!memcmp("get_hits", key, strlen("get_hits")))
 116   {
 117     stat->get_hits= strtoll(value, (char **)NULL, 10);
 118   }
 119   else if (!memcmp("get_misses", key, strlen("get_misses")))
 120   {
 121     stat->get_misses= strtoll(value, (char **)NULL, 10);
 122   }
 123   else if (!memcmp("evictions", key, strlen("evictions")))
 124   {
 125     stat->evictions= strtoll(value, (char **)NULL, 10);
 126   }
 127   else if (!memcmp("bytes_read", key, strlen("bytes_read")))
 128   {
 129     stat->bytes_read= strtoll(value, (char **)NULL, 10);
 130   }
 131   else if (!memcmp("bytes_written", key, strlen("bytes_written")))
 132   {
 133     stat->bytes_written= strtoll(value, (char **)NULL, 10);
 134   }
 135   else if (!memcmp("limit_maxbytes", key, strlen("limit_maxbytes")))
 136   {
 137     stat->limit_maxbytes= strtoll(value, (char **)NULL, 10);
 138   }
 139   else if (!memcmp("threads", key, strlen("threads")))
 140   {
 141     stat->threads= strtol(key, (char **)NULL, 10);
 142   }
 143   else
 144   {
 145     fprintf(stderr, "Unknown key %s\n", key);
 146   }
 147 }
 148
 149 char *memcached_stat_get_value(memcached_st *ptr, memcached_stat_st *stat,
 150                                char *key, memcached_return *error)
 151 {
 152   char buffer[SMALL_STRING_LEN];
 153   *error= MEMCACHED_SUCCESS;
 154
 155
 156   memset(buffer, 0, SMALL_STRING_LEN);
 157
 158   if (!memcmp("pid", key, strlen("pid")))
 159     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->pid);
 160   else if (!memcmp("uptime", key, strlen("uptime")))
 161     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->uptime);
 162   else if (!memcmp("time", key, strlen("time")))
 163     snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)stat->time);
 164   else if (!memcmp("version", key, strlen("version")))
 165     snprintf(buffer, SMALL_STRING_LEN,"%s", stat->version);
 166   else if (!memcmp("pointer_size", key, strlen("pointer_size")))
 167     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->pointer_size);
 168   else if (!memcmp("rusage_user", key, strlen("rusage_user")))
 169     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_user);
 170   else if (!memcmp("rusage_system", key, strlen("rusage_system")))
 171     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_system);
 172   else if (!memcmp("rusage_user_seconds", key, strlen("rusage_user_seconds")))
 173     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_user_seconds);
 174   else if (!memcmp("rusage_user_microseconds", key, strlen("rusage_user_microseconds")))
 175     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_user_microseconds);
 176   else if (!memcmp("rusage_system_seconds", key, strlen("rusage_system_seconds")))
 177     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_system_seconds);
 178   else if (!memcmp("rusage_system_microseconds", key, strlen("rusage_system_microseconds")))
 179     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->rusage_system_microseconds);
 180   else if (!memcmp("curr_items", key, strlen("curr_items")))
 181     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->curr_items);
 182   else if (!memcmp("total_items", key, strlen("total_items")))
 183     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->total_items);
 184   else if (!memcmp("bytes", key, strlen("bytes")))
 185     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->bytes);
 186   else if (!memcmp("curr_connections", key, strlen("curr_connections")))
 187     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->curr_connections);
 188   else if (!memcmp("total_connections", key, strlen("total_connections")))
 189     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->total_connections);
 190   else if (!memcmp("connection_structures", key, strlen("connection_structures")))
 191     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->connection_structures);
 192   else if (!memcmp("cmd_get", key, strlen("cmd_get")))
 193     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->cmd_get);
 194   else if (!memcmp("cmd_set", key, strlen("cmd_set")))
 195     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->cmd_set);
 196   else if (!memcmp("get_hits", key, strlen("get_hits")))
 197     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->get_hits);
 198   else if (!memcmp("get_misses", key, strlen("get_misses")))
 199     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->get_misses);
 200   else if (!memcmp("evictions", key, strlen("evictions")))
 201     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->evictions);
 202   else if (!memcmp("bytes_read", key, strlen("bytes_read")))
 203     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->bytes_read);
 204   else if (!memcmp("bytes_written", key, strlen("bytes_written")))
 205     snprintf(buffer, SMALL_STRING_LEN,"%llu", stat->bytes_written);
 206   else if (!memcmp("limit_maxbytes", key, strlen("limit_maxbytes")))
 207     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->limit_maxbytes);
 208   else if (!memcmp("threads", key, strlen("threads")))
 209     snprintf(buffer, SMALL_STRING_LEN,"%u", stat->threads);
 210   else
 211   {
 212     *error= MEMCACHED_NOTFOUND;
 213     return NULL;
 214   }
 215
 216   return strdup(buffer);
 217 }
 218
 219 static memcached_return memcached_stats_fetch(memcached_st *ptr,
 220                                               memcached_stat_st *stat,
 221                                               char *args,
 222                                               unsigned int server_key)
 223 {
 224   memcached_return rc;
 225   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
 226   size_t send_length, sent_length;
 227
 228   rc= memcached_connect(ptr, server_key);
 229
 230   if (rc != MEMCACHED_SUCCESS)
 231     return rc;
 232
 233   if (args)
 234     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
 235                           "stats %s\r\n", args);
 236   else
 237     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
 238                           "stats\r\n");
 239
 240   if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
 241     return MEMCACHED_WRITE_FAILURE;
 242
 243   sent_length= memcached_io_write(ptr, server_key, buffer, send_length, 1);
 244
 245   if (sent_length == -1 || sent_length != send_length)
 246     return MEMCACHED_WRITE_FAILURE;
 247
 248   while (1)
 249   {
 250     rc= memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, server_key);
 251
 252     if (rc == MEMCACHED_STAT)
 253     {
 254       char *string_ptr, *end_ptr;
 255       char *key, *value;
 256
 257       string_ptr= buffer;
 258       string_ptr+= 5; /* Move past STAT */
 259       for (end_ptr= string_ptr; *end_ptr != ' '; end_ptr++);
 260       key= string_ptr;
 261       key[(size_t)(end_ptr-string_ptr)]= 0;
 262
 263       string_ptr= end_ptr + 1;
 264       for (end_ptr= string_ptr; *end_ptr != '\r'; end_ptr++);
 265       value= string_ptr;
 266       value[(size_t)(end_ptr-string_ptr)]= 0;
 267       string_ptr= end_ptr + 2;
 268       set_data(stat, key, value);
 269     }
 270     else
 271       break;
 272   }
 273
 274   if (rc == MEMCACHED_END)
 275     return MEMCACHED_SUCCESS;
 276   else
 277     return rc;
 278 }
 279
 280 memcached_stat_st *memcached_stat(memcached_st *ptr, char *args, memcached_return *error)
 281 {
 282   unsigned int x;
 283   memcached_return rc;
 284   memcached_stat_st *stats;
 285
 286   stats= (memcached_stat_st *)malloc(sizeof(memcached_st)*(ptr->number_of_hosts+1));
 287   if (!stats)
 288   {
 289     *error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
 290     free(stats);
 291     return NULL;
 292   }
 293   memset(stats, 0, sizeof(memcached_st)*(ptr->number_of_hosts+1));
 294
 295   rc= MEMCACHED_SUCCESS;
 296   for (x= 0; x < ptr->number_of_hosts; x++)
 297   {
 298     memcached_return temp_return;
 299     temp_return= memcached_stats_fetch(ptr, stats+x, args, x);
 300     if (temp_return != MEMCACHED_SUCCESS)
 301       rc= MEMCACHED_SOME_ERRORS;
 302   }
 303
 304   *error= rc;
 305   return stats;
 306 }
 307
 308 memcached_return memcached_stat_servername(memcached_stat_st *stat, char *args,
 309                                            char *hostname, unsigned int port)
 310 {
 311   memcached_return rc;
 312   memcached_st memc;
 313
 314   memcached_create(&memc);
 315
 316   memcached_server_add(&memc, hostname, port);
 317
 318   rc= memcached_stats_fetch(&memc, stat, args, 0);
 319
 320   memcached_free(&memc);
 321
 322   return rc;
 323 }
 324
 325 /*
 326   We make a copy of the keys since at some point in the not so distant future
 327   we will add support for "found" keys.
 328 */
 329 char ** memcached_stat_get_keys(memcached_st *ptr, memcached_stat_st *stat,
 330                                 memcached_return *error)
 331 {
 332   char **list= (char **)malloc(sizeof(memcached_stat_keys));
 333
 334   memset(list, 0, sizeof(memcached_stat_keys));
 335
 336   if (!list)
 337   {
 338     *error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
 339     return NULL;
 340   }
 341
 342   memcpy(list, memcached_stat_keys, sizeof(memcached_stat_keys));
 343
 344   *error= MEMCACHED_SUCCESS;
 345
 346   return list;
 347 }