ctdb/tests/src/ctdb_traverse.c

   1 /*
   2    simple tool to traverse a ctdb database over and over and over
   3
   4    Copyright (C) Andrew Tridgell  2006
   5         Ronnie sahlberg 2007
   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 "system/filesys.h"
  23 #include "popt.h"
  24 #include "cmdline.h"
  25
  26 #include <sys/time.h>
  27 #include <time.h>
  28
  29 static const char *dbname = "test.tdb";
  30
  31 static int traverse_callback(struct ctdb_context *ctdb, TDB_DATA key, TDB_DATA data, void *private_data)
  32 {
  33         uint32_t *count = private_data;
  34
  35         (*count)++;
  36         return 0;
  37 }
  38
  39 static void traverse_loop(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, struct event_context *ev)
  40 {
  41         uint32_t count;
  42
  43         printf("traversing database\n");
  44         count = 0;
  45         ctdb_traverse(ctdb_db, traverse_callback, &count);
  46         printf("traversed %d records\n", count);
  47 }
  48
  49 /*
  50   main program
  51 */
  52 int main(int argc, const char *argv[])
  53 {
  54         struct ctdb_context *ctdb;
  55         struct ctdb_db_context *ctdb_db;
  56
  57         struct poptOption popt_options[] = {
  58                 POPT_AUTOHELP
  59                 POPT_CTDB_CMDLINE
  60                 { "database", 0, POPT_ARG_STRING, &dbname, 0, "database to traverse", "name" },
  61                 POPT_TABLEEND
  62         };
  63         int opt;
  64         const char **extra_argv;
  65         int extra_argc = 0;
  66         poptContext pc;
  67         struct event_context *ev;
  68
  69         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
  70
  71         while ((opt = poptGetNextOpt(pc)) != -1) {
  72                 switch (opt) {
  73                 default:
  74                         fprintf(stderr, "Invalid option %s: %s\n",
  75                                 poptBadOption(pc, 0), poptStrerror(opt));
  76                         exit(1);
  77                 }
  78         }
  79
  80         /* talloc_enable_leak_report_full(); */
  81
  82         /* setup the remaining options for the main program to use */
  83         extra_argv = poptGetArgs(pc);
  84         if (extra_argv) {
  85                 extra_argv++;
  86                 while (extra_argv[extra_argc]) extra_argc++;
  87         }
  88
  89         ev = event_context_init(NULL);
  90
  91         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(3, 0));
  92         if (ctdb == NULL) {
  93                 exit(1);
  94         }
  95
  96         /* attach to a specific database */
  97         ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0), dbname, false, 0);
  98         if (!ctdb_db) {
  99                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 100                 exit(1);
 101         }
 102
 103         printf("Waiting for cluster\n");
 104         while (1) {
 105                 uint32_t recmode=1;
 106                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 107                 if (recmode == 0) break;
 108                 event_loop_once(ev);
 109         }
 110
 111         while (1) {
 112                 traverse_loop(ctdb, ctdb_db, ev);
 113         }
 114
 115         return 0;
 116 }