ctdb/tests/src/ctdb_update_record_persistent.c

   1 /*
   2    simple ctdb test tool
   3    This test just creates/updates a record in a persistent database
   4
   5    Copyright (C) Ronnie Sahlberg 2012
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "lib/util/db_wrap.h"
  23 #include "system/filesys.h"
  24 #include "popt.h"
  25 #include "cmdline.h"
  26 #include "ctdb_private.h"
  27
  28
  29 static void update_once(struct ctdb_context *ctdb, struct event_context *ev, struct ctdb_db_context *ctdb_db, char *record, char *value)
  30 {
  31         TDB_DATA key, data, olddata;
  32         struct ctdb_ltdb_header header;
  33
  34         memset(&header, 0, sizeof(header));
  35
  36         key.dptr  = (uint8_t *)record;
  37         key.dsize = strlen(record);
  38
  39         data.dptr  = (uint8_t *)value;
  40         data.dsize = strlen(value);
  41
  42         olddata = tdb_fetch(ctdb_db->ltdb->tdb, key);
  43         if (olddata.dsize != 0) {
  44                 memcpy(&header, olddata.dptr, sizeof(header));
  45         }
  46         header.rsn++;
  47
  48         if (ctdb_ctrl_updaterecord(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb_db, key, &header, data) != 0) {
  49                 printf("Failed to update record\n");
  50                 exit(1);
  51         }
  52 }
  53
  54 /*
  55   main program
  56 */
  57 int main(int argc, const char *argv[])
  58 {
  59         struct ctdb_context *ctdb;
  60         char *test_db = NULL;
  61         char *record = NULL;
  62         char *value = NULL;
  63         struct ctdb_db_context *ctdb_db;
  64         struct event_context *ev;
  65
  66         struct poptOption popt_options[] = {
  67                 POPT_AUTOHELP
  68                 POPT_CTDB_CMDLINE
  69                 { "database",      'D', POPT_ARG_STRING, &test_db, 0, "database", "string" },
  70                 { "record",      'R', POPT_ARG_STRING, &record, 0, "record", "string" },
  71                 { "value",      'V', POPT_ARG_STRING, &value, 0, "value", "string" },
  72                 POPT_TABLEEND
  73         };
  74         int opt;
  75         const char **extra_argv;
  76         int extra_argc = 0;
  77         poptContext pc;
  78
  79
  80         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
  81
  82         while ((opt = poptGetNextOpt(pc)) != -1) {
  83                 switch (opt) {
  84                 default:
  85                         fprintf(stderr, "Invalid option %s: %s\n",
  86                                 poptBadOption(pc, 0), poptStrerror(opt));
  87                         exit(1);
  88                 }
  89         }
  90
  91         /* setup the remaining options for the main program to use */
  92         extra_argv = poptGetArgs(pc);
  93         if (extra_argv) {
  94                 extra_argv++;
  95                 while (extra_argv[extra_argc]) extra_argc++;
  96         }
  97
  98         ev = event_context_init(NULL);
  99
 100         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(5, 0));
 101         if (ctdb == NULL) {
 102                 exit(1);
 103         }
 104
 105         if (test_db == NULL) {
 106                 fprintf(stderr, "You must specify the database\n");
 107                 exit(10);
 108         }
 109
 110         if (record == NULL) {
 111                 fprintf(stderr, "You must specify the record\n");
 112                 exit(10);
 113         }
 114
 115         if (value == NULL) {
 116                 fprintf(stderr, "You must specify the value\n");
 117                 exit(10);
 118         }
 119
 120         /* attach to a specific database */
 121         ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(5, 0), test_db, true, 0);
 122         if (!ctdb_db) {
 123                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 124                 exit(1);
 125         }
 126
 127         printf("Waiting for cluster\n");
 128         while (1) {
 129                 uint32_t recmode=1;
 130                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 131                 if (recmode == 0) break;
 132                 event_loop_once(ev);
 133         }
 134
 135         update_once(ctdb, ev, ctdb_db, record, value);
 136
 137         return 0;
 138 }