src/frontend/query.c

   1 /*
   2  * SysDB - src/frontend/query.c
   3  * Copyright (C) 2013-2014 Sebastian 'tokkee' Harl <sh@tokkee.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 #       include "config.h"
  30 #endif
  31
  32 #include "sysdb.h"
  33
  34 #include "core/plugin.h"
  35 #include "frontend/connection-private.h"
  36 #include "parser/ast.h"
  37 #include "parser/parser.h"
  38 #include "utils/error.h"
  39 #include "utils/proto.h"
  40 #include "utils/strbuf.h"
  41
  42 #include <errno.h>
  43 #include <ctype.h>
  44 #include <string.h>
  45
  46 /*
  47  * metric fetcher:
  48  * Implements the callbacks necessary to read a metric object.
  49  */
  50
  51 typedef struct {
  52         char *type;
  53         char *id;
  54         sdb_time_t last_update;
  55 } metric_store_t;
  56
  57 static int
  58 metric_fetcher_host(sdb_store_host_t __attribute__((unused)) *host,
  59                 sdb_object_t __attribute__((unused)) *user_data)
  60 {
  61         return 0;
  62 } /* metric_fetcher_host */
  63
  64 static int
  65 metric_fetcher_metric(sdb_store_metric_t *metric, sdb_object_t *user_data)
  66 {
  67         metric_store_t *st = SDB_OBJ_WRAPPER(user_data)->data;
  68         sdb_time_t last_update = 0;
  69         size_t idx = 0, i;
  70
  71         if (! metric->stores_num)
  72                 return -1;
  73
  74         /* Find the most up to date data store.
  75          * TODO: Consider merging multiple results? */
  76         for (i = 0; i < metric->stores_num; ++i) {
  77                 if (metric->stores[i].last_update > last_update) {
  78                         last_update = metric->stores[i].last_update;
  79                         idx = i;
  80                 }
  81         }
  82         st->type = strdup(metric->stores[idx].type);
  83         st->id = strdup(metric->stores[idx].id);
  84         st->last_update = metric->stores[idx].last_update;
  85         return 0;
  86 } /* metric_fetcher_metric */
  87
  88 static sdb_store_writer_t metric_fetcher = {
  89         metric_fetcher_host, NULL, metric_fetcher_metric, NULL,
  90 };
  91
  92 /*
  93  * private helper functions
  94  */
  95
  96 static char *
  97 sstrdup(const char *s)
  98 {
  99         return s ? strdup(s) : NULL;
 100 } /* sstrdup */
 101
 102 static size_t
 103 sstrlen(const char *s)
 104 {
 105         return s ? strlen(s) : 0;
 106 } /* sstrlen */
 107
 108 static int
 109 exec_query(sdb_ast_node_t *ast, sdb_strbuf_t *buf, sdb_strbuf_t *errbuf)
 110 {
 111         sdb_store_json_formatter_t *f;
 112         int type = 0, flags = 0;
 113         uint32_t res_type = 0;
 114         int status;
 115
 116         switch (ast->type) {
 117         case SDB_AST_TYPE_FETCH:
 118                 type = SDB_AST_FETCH(ast)->obj_type;
 119                 res_type = htonl(SDB_CONNECTION_FETCH);
 120                 break;
 121         case SDB_AST_TYPE_LIST:
 122                 type = SDB_AST_LIST(ast)->obj_type;
 123                 flags = SDB_WANT_ARRAY;
 124                 res_type = htonl(SDB_CONNECTION_LIST);
 125                 break;
 126         case SDB_AST_TYPE_LOOKUP:
 127                 type = SDB_AST_LOOKUP(ast)->obj_type;
 128                 flags = SDB_WANT_ARRAY;
 129                 res_type = htonl(SDB_CONNECTION_LOOKUP);
 130                 break;
 131         default:
 132                 sdb_strbuf_sprintf(errbuf, "invalid command %s (%#x)",
 133                                 SDB_AST_TYPE_TO_STRING(ast), ast->type);
 134                 return -1;
 135         }
 136
 137         f = sdb_store_json_formatter(buf, type, flags);
 138         sdb_strbuf_memcpy(buf, &res_type, sizeof(res_type));
 139         status = sdb_plugin_query(ast, &sdb_store_json_writer, SDB_OBJ(f),
 140                         &(sdb_query_opts_t){ true }, errbuf);
 141         if (status < 0)
 142                 sdb_strbuf_clear(buf);
 143         sdb_store_json_finish(f);
 144         sdb_object_deref(SDB_OBJ(f));
 145         return status;
 146 } /* exec_query */
 147
 148 static int
 149 exec_store(sdb_ast_store_t *st, sdb_strbuf_t *buf, sdb_strbuf_t *errbuf)
 150 {
 151         char name[sstrlen(st->hostname) + sstrlen(st->parent) + sstrlen(st->name) + 3];
 152         sdb_metric_store_t metric_store;
 153         int type = st->obj_type, status = -1;
 154
 155         switch (st->obj_type) {
 156         case SDB_HOST:
 157                 strncpy(name, st->name, sizeof(name));
 158                 status = sdb_plugin_store_host(st->name, st->last_update);
 159                 break;
 160
 161         case SDB_SERVICE:
 162                 snprintf(name, sizeof(name), "%s.%s", st->hostname, st->name);
 163                 status = sdb_plugin_store_service(st->hostname, st->name, st->last_update);
 164                 break;
 165
 166         case SDB_METRIC:
 167                 snprintf(name, sizeof(name), "%s.%s", st->hostname, st->name);
 168                 metric_store.type = st->store_type;
 169                 metric_store.id = st->store_id;
 170                 metric_store.last_update = st->store_last_update;
 171                 status = sdb_plugin_store_metric(st->hostname, st->name,
 172                                 &metric_store, st->last_update);
 173                 break;
 174
 175         case SDB_ATTRIBUTE:
 176                 type |= st->parent_type;
 177
 178                 if (st->parent)
 179                         snprintf(name, sizeof(name), "%s.%s.%s",
 180                                         st->hostname, st->parent, st->name);
 181                 else
 182                         snprintf(name, sizeof(name), "%s.%s", st->hostname, st->name);
 183
 184                 switch (st->parent_type) {
 185                 case 0:
 186                         type |= SDB_HOST;
 187                         status = sdb_plugin_store_attribute(st->hostname,
 188                                         st->name, &st->value, st->last_update);
 189                         break;
 190
 191                 case SDB_SERVICE:
 192                         status = sdb_plugin_store_service_attribute(st->hostname, st->parent,
 193                                         st->name, &st->value, st->last_update);
 194                         break;
 195
 196                 case SDB_METRIC:
 197                         status = sdb_plugin_store_metric_attribute(st->hostname, st->parent,
 198                                         st->name, &st->value, st->last_update);
 199                         break;
 200
 201                 default:
 202                         sdb_log(SDB_LOG_ERR, "store: Invalid parent type in STORE: %s",
 203                                         SDB_STORE_TYPE_TO_NAME(st->parent_type));
 204                         return -1;
 205                 }
 206                 break;
 207
 208         default:
 209                 sdb_log(SDB_LOG_ERR, "store: Invalid object type in STORE: %s",
 210                                 SDB_STORE_TYPE_TO_NAME(st->obj_type));
 211                 return -1;
 212         }
 213
 214         if (status < 0) {
 215                 sdb_strbuf_sprintf(errbuf, "STORE: Failed to store %s object",
 216                                 SDB_STORE_TYPE_TO_NAME(type));
 217                 return -1;
 218         }
 219
 220         if (! status) {
 221                 sdb_strbuf_sprintf(buf, "Successfully stored %s %s",
 222                                 SDB_STORE_TYPE_TO_NAME(type), name);
 223         }
 224         else {
 225                 char type_str[32];
 226                 strncpy(type_str, SDB_STORE_TYPE_TO_NAME(type), sizeof(type_str));
 227                 type_str[0] = (char)toupper((int)type_str[0]);
 228                 sdb_strbuf_sprintf(buf, "%s %s already up to date", type_str, name);
 229         }
 230
 231         return SDB_CONNECTION_OK;
 232 } /* exec_store */
 233
 234 static int
 235 exec_timeseries(sdb_ast_timeseries_t *ts, sdb_strbuf_t *buf, sdb_strbuf_t *errbuf)
 236 {
 237         metric_store_t st = { NULL, NULL, 0 };
 238         sdb_object_wrapper_t obj = SDB_OBJECT_WRAPPER_STATIC(&st);
 239         sdb_ast_fetch_t fetch = SDB_AST_FETCH_INIT;
 240         sdb_timeseries_opts_t opts = { 0, 0 };
 241         sdb_timeseries_t *series = NULL;
 242         int status;
 243
 244         if ((! ts) || (! ts->hostname) || (! ts->metric))
 245                 return -1;
 246
 247         fetch.obj_type = SDB_METRIC;
 248         fetch.hostname = strdup(ts->hostname);
 249         fetch.name = strdup(ts->metric);
 250         opts.start = ts->start;
 251         opts.end = ts->end;
 252
 253         status = sdb_plugin_query(SDB_AST_NODE(&fetch),
 254                         &metric_fetcher, SDB_OBJ(&obj),
 255                         &(sdb_query_opts_t){ true }, errbuf);
 256         if ((status < 0) || (! st.type) || (! st.id)) {
 257                 sdb_log(SDB_LOG_ERR, "frontend: Failed to fetch time-series '%s/%s' "
 258                                 "- no data-store configured for the stored metric",
 259                                 ts->hostname, ts->metric);
 260                 status = -1;
 261         }
 262         if (status >= 0) {
 263                 series = sdb_plugin_fetch_timeseries(st.type, st.id, &opts);
 264                 if (series) {
 265                         uint32_t res_type = htonl(SDB_CONNECTION_TIMESERIES);
 266                         sdb_strbuf_memcpy(buf, &res_type, sizeof(res_type));
 267                         sdb_timeseries_tojson(series, buf);
 268                         sdb_timeseries_destroy(series);
 269                 }
 270                 else {
 271                         sdb_log(SDB_LOG_ERR, "frontend: Failed to fetch time-series '%s/%s' "
 272                                         "- %s fetcher callback returned no data for '%s'",
 273                                         ts->hostname, ts->metric, st.type, st.id);
 274                         status = -1;
 275                 }
 276         }
 277
 278         free(fetch.hostname);
 279         free(fetch.name);
 280         if (st.type)
 281                 free(st.type);
 282         if (st.id)
 283                 free(st.id);
 284         return status;
 285 } /* exec_timeseries */
 286
 287 static int
 288 exec_cmd(sdb_conn_t *conn, sdb_ast_node_t *ast)
 289 {
 290         sdb_strbuf_t *buf;
 291         int status;
 292
 293         if (! ast) {
 294                 sdb_strbuf_sprintf(conn->errbuf, "out of memory");
 295                 return -1;
 296         }
 297
 298         buf = sdb_strbuf_create(1024);
 299         if (! buf) {
 300                 sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
 301                 return -1;
 302         }
 303
 304         if (ast->type == SDB_AST_TYPE_STORE)
 305                 status = exec_store(SDB_AST_STORE(ast), buf, conn->errbuf);
 306         else if (ast->type == SDB_AST_TYPE_TIMESERIES)
 307                 status = exec_timeseries(SDB_AST_TIMESERIES(ast), buf, conn->errbuf);
 308         else
 309                 status = exec_query(ast, buf, conn->errbuf);
 310
 311         if (status < 0) {
 312                 char query[conn->cmd_len + 1];
 313                 strncpy(query, sdb_strbuf_string(conn->buf), conn->cmd_len);
 314                 query[sizeof(query) - 1] = '\0';
 315                 sdb_log(SDB_LOG_ERR, "frontend: failed to execute query '%s'", query);
 316         }
 317         else
 318                 sdb_connection_send(conn, status,
 319                                 (uint32_t)sdb_strbuf_len(buf), sdb_strbuf_string(buf));
 320
 321         sdb_strbuf_destroy(buf);
 322         return status < 0 ? status : 0;
 323 } /* exec_cmd */
 324
 325 /*
 326  * public API
 327  */
 328
 329 int
 330 sdb_conn_query(sdb_conn_t *conn)
 331 {
 332         sdb_llist_t *parsetree;
 333         sdb_ast_node_t *ast = NULL;
 334         int status = 0;
 335
 336         if ((! conn) || (conn->cmd != SDB_CONNECTION_QUERY))
 337                 return -1;
 338
 339         parsetree = sdb_parser_parse(sdb_strbuf_string(conn->buf),
 340                         (int)conn->cmd_len, conn->errbuf);
 341         if (! parsetree) {
 342                 char query[conn->cmd_len + 1];
 343                 strncpy(query, sdb_strbuf_string(conn->buf), conn->cmd_len);
 344                 query[sizeof(query) - 1] = '\0';
 345                 sdb_log(SDB_LOG_ERR, "frontend: Failed to parse query '%s': %s",
 346                                 query, sdb_strbuf_string(conn->errbuf));
 347                 return -1;
 348         }
 349
 350         switch (sdb_llist_len(parsetree)) {
 351                 case 0:
 352                         /* skipping empty command; send back an empty reply */
 353                         sdb_connection_send(conn, SDB_CONNECTION_DATA, 0, NULL);
 354                         break;
 355                 case 1:
 356                         ast = SDB_AST_NODE(sdb_llist_get(parsetree, 0));
 357                         break;
 358
 359                 default:
 360                         {
 361                                 char query[conn->cmd_len + 1];
 362                                 strncpy(query, sdb_strbuf_string(conn->buf), conn->cmd_len);
 363                                 query[sizeof(query) - 1] = '\0';
 364                                 sdb_log(SDB_LOG_WARNING, "frontend: Ignoring %zu command%s "
 365                                                 "in multi-statement query '%s'",
 366                                                 sdb_llist_len(parsetree) - 1,
 367                                                 sdb_llist_len(parsetree) == 2 ? "" : "s",
 368                                                 query);
 369                                 ast = SDB_AST_NODE(sdb_llist_get(parsetree, 0));
 370                         }
 371         }
 372
 373         if (ast) {
 374                 status = exec_cmd(conn, ast);
 375                 sdb_object_deref(SDB_OBJ(ast));
 376         }
 377         sdb_llist_destroy(parsetree);
 378         return status;
 379 } /* sdb_conn_query */
 380
 381 int
 382 sdb_conn_fetch(sdb_conn_t *conn)
 383 {
 384         sdb_ast_node_t *ast;
 385         char hostname[conn->cmd_len + 1];
 386         char name[conn->cmd_len + 1];
 387         uint32_t type;
 388         int status;
 389
 390         if ((! conn) || (conn->cmd != SDB_CONNECTION_FETCH))
 391                 return -1;
 392
 393         if (conn->cmd_len < sizeof(uint32_t)) {
 394                 sdb_log(SDB_LOG_ERR, "frontend: Invalid command length %d for "
 395                                 "FETCH command", conn->cmd_len);
 396                 sdb_strbuf_sprintf(conn->errbuf, "FETCH: Invalid command length %d",
 397                                 conn->cmd_len);
 398                 return -1;
 399         }
 400
 401         /* TODO: support other types besides hosts */
 402         hostname[0] = '\0';
 403
 404         sdb_proto_unmarshal_int32(SDB_STRBUF_STR(conn->buf), &type);
 405         strncpy(name, sdb_strbuf_string(conn->buf) + sizeof(uint32_t),
 406                         conn->cmd_len - sizeof(uint32_t));
 407         name[sizeof(name) - 1] = '\0';
 408
 409         ast = sdb_ast_fetch_create((int)type,
 410                         hostname[0] ? strdup(hostname) : NULL,
 411                         -1, NULL,
 412                         name[0] ? strdup(name) : NULL,
 413                         /* full */ 1, /* filter = */ NULL);
 414         status = exec_cmd(conn, ast);
 415         sdb_object_deref(SDB_OBJ(ast));
 416         return status;
 417 } /* sdb_conn_fetch */
 418
 419 int
 420 sdb_conn_list(sdb_conn_t *conn)
 421 {
 422         sdb_ast_node_t *ast;
 423         uint32_t type = SDB_HOST;
 424         int status;
 425
 426         if ((! conn) || (conn->cmd != SDB_CONNECTION_LIST))
 427                 return -1;
 428
 429         if (conn->cmd_len == sizeof(uint32_t))
 430                 sdb_proto_unmarshal_int32(SDB_STRBUF_STR(conn->buf), &type);
 431         else if (conn->cmd_len) {
 432                 sdb_log(SDB_LOG_ERR, "frontend: Invalid command length %d for "
 433                                 "LIST command", conn->cmd_len);
 434                 sdb_strbuf_sprintf(conn->errbuf, "LIST: Invalid command length %d",
 435                                 conn->cmd_len);
 436                 return -1;
 437         }
 438
 439         ast = sdb_ast_list_create((int)type, /* filter = */ NULL);
 440         status = exec_cmd(conn, ast);
 441         sdb_object_deref(SDB_OBJ(ast));
 442         return status;
 443 } /* sdb_conn_list */
 444
 445 int
 446 sdb_conn_lookup(sdb_conn_t *conn)
 447 {
 448         sdb_ast_node_t *ast, *m;
 449         const char *matcher;
 450         size_t matcher_len;
 451
 452         uint32_t type;
 453         int status;
 454
 455         if ((! conn) || (conn->cmd != SDB_CONNECTION_LOOKUP))
 456                 return -1;
 457
 458         if (conn->cmd_len < sizeof(uint32_t)) {
 459                 sdb_log(SDB_LOG_ERR, "frontend: Invalid command length %d for "
 460                                 "LOOKUP command", conn->cmd_len);
 461                 sdb_strbuf_sprintf(conn->errbuf, "LOOKUP: Invalid command length %d",
 462                                 conn->cmd_len);
 463                 return -1;
 464         }
 465         sdb_proto_unmarshal_int32(SDB_STRBUF_STR(conn->buf), &type);
 466
 467         matcher = sdb_strbuf_string(conn->buf) + sizeof(uint32_t);
 468         matcher_len = conn->cmd_len - sizeof(uint32_t);
 469         m = sdb_parser_parse_conditional((int)type,
 470                         matcher, (int)matcher_len, conn->errbuf);
 471         if (! m) {
 472                 char expr[matcher_len + 1];
 473                 char err[sdb_strbuf_len(conn->errbuf) + sizeof(expr) + 64];
 474                 strncpy(expr, matcher, sizeof(expr));
 475                 expr[sizeof(expr) - 1] = '\0';
 476                 snprintf(err, sizeof(err), "Failed to parse lookup condition '%s': %s",
 477                                 expr, sdb_strbuf_string(conn->errbuf));
 478                 sdb_log(SDB_LOG_ERR, "frontend: %s", err);
 479                 sdb_strbuf_sprintf(conn->errbuf, "%s", err);
 480                 return -1;
 481         }
 482
 483         ast = sdb_ast_lookup_create((int)type, m, /* filter = */ NULL);
 484         status = exec_cmd(conn, ast);
 485         if (! ast)
 486                 sdb_object_deref(SDB_OBJ(m));
 487         sdb_object_deref(SDB_OBJ(ast));
 488         return status;
 489 } /* sdb_conn_lookup */
 490
 491 int
 492 sdb_conn_store(sdb_conn_t *conn)
 493 {
 494         sdb_ast_node_t *ast = NULL;
 495         const char *buf = sdb_strbuf_string(conn->buf);
 496         size_t len = conn->cmd_len;
 497         uint32_t type;
 498         ssize_t n;
 499         int status;
 500
 501         if ((! conn) || (conn->cmd != SDB_CONNECTION_STORE))
 502                 return -1;
 503
 504         if ((n = sdb_proto_unmarshal_int32(buf, len, &type)) < 0) {
 505                 sdb_log(SDB_LOG_ERR, "frontend: Invalid command length %zu for "
 506                                 "STORE command", len);
 507                 sdb_strbuf_sprintf(conn->errbuf,
 508                                 "STORE: Invalid command length %zu", len);
 509                 return -1;
 510         }
 511
 512         switch (type) {
 513                 case SDB_HOST:
 514                 {
 515                         sdb_proto_host_t host;
 516                         if (sdb_proto_unmarshal_host(buf, len, &host) < 0) {
 517                                 sdb_strbuf_sprintf(conn->errbuf,
 518                                                 "STORE: Failed to unmarshal host object");
 519                                 return -1;
 520                         }
 521                         ast = sdb_ast_store_create(SDB_HOST, /* host */ NULL,
 522                                         /* parent */ 0, NULL, sstrdup(host.name), host.last_update,
 523                                         /* metric store */ NULL, NULL, 0, SDB_DATA_NULL);
 524                 }
 525                 break;
 526
 527                 case SDB_SERVICE:
 528                 {
 529                         sdb_proto_service_t svc;
 530                         if (sdb_proto_unmarshal_service(buf, len, &svc) < 0) {
 531                                 sdb_strbuf_sprintf(conn->errbuf,
 532                                                 "STORE: Failed to unmarshal service object");
 533                                 return -1;
 534                         }
 535                         ast = sdb_ast_store_create(SDB_SERVICE, sstrdup(svc.hostname),
 536                                         /* parent */ 0, NULL, sstrdup(svc.name), svc.last_update,
 537                                         /* metric store */ NULL, NULL, 0, SDB_DATA_NULL);
 538                 }
 539                 break;
 540
 541                 case SDB_METRIC:
 542                 {
 543                         sdb_proto_metric_t metric;
 544                         if (sdb_proto_unmarshal_metric(buf, len, &metric) < 0) {
 545                                 sdb_strbuf_sprintf(conn->errbuf,
 546                                                 "STORE: Failed to unmarshal metric object");
 547                                 return -1;
 548                         }
 549                         ast = sdb_ast_store_create(SDB_METRIC, sstrdup(metric.hostname),
 550                                         /* parent */ 0, NULL, sstrdup(metric.name), metric.last_update,
 551                                         sstrdup(metric.store_type), sstrdup(metric.store_id),
 552                                         metric.store_last_update, SDB_DATA_NULL);
 553                 }
 554                 break;
 555         }
 556
 557         if (type & SDB_ATTRIBUTE) {
 558                 sdb_proto_attribute_t attr;
 559                 const char *hostname, *parent;
 560                 int parent_type;
 561                 if (sdb_proto_unmarshal_attribute(buf, len, &attr) < 0) {
 562                         sdb_strbuf_sprintf(conn->errbuf,
 563                                         "STORE: Failed to unmarshal attribute object");
 564                         return -1;
 565                 }
 566                 if (attr.parent_type == SDB_HOST) {
 567                         hostname = attr.parent;
 568                         parent_type = 0;
 569                         parent = NULL;
 570                 }
 571                 else {
 572                         hostname = attr.hostname;
 573                         parent_type = attr.parent_type;
 574                         parent = attr.parent;
 575                 }
 576                 ast = sdb_ast_store_create(SDB_ATTRIBUTE, sstrdup(hostname),
 577                                 parent_type, sstrdup(parent), sstrdup(attr.key),
 578                                 attr.last_update, /* metric store */ NULL, NULL, 0,
 579                                 attr.value);
 580         }
 581
 582         if (! ast) {
 583                 sdb_log(SDB_LOG_ERR, "frontend: Invalid object type %d for "
 584                                 "STORE COMMAND", type);
 585                 sdb_strbuf_sprintf(conn->errbuf, "STORE: Invalid object type %d", type);
 586                 return -1;
 587         }
 588
 589         status = sdb_parser_analyze(ast, conn->errbuf);
 590         if (! status)
 591                 status = exec_cmd(conn, ast);
 592         sdb_object_deref(SDB_OBJ(ast));
 593         return status;
 594 } /* sdb_conn_store */
 595
 596 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 597