ctdb/tests/src/ctdb_fetch_readonly_loop.c

   1 /*
   2    simple ctdb test tool
   3    This test just fetch_locks a record and releases it in a loop.
   4
   5    Copyright (C) Ronnie Sahlberg 2009
   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 "system/time.h"
  24 #include "popt.h"
  25 #include "cmdline.h"
  26 #include "ctdb_private.h"
  27
  28 static struct ctdb_db_context *ctdb_db;
  29
  30 const char *TESTKEY = "testkey";
  31 static int count;
  32
  33 /*
  34         Just try locking/unlocking a single record once
  35 */
  36 static void fetch_lock_once(struct ctdb_context *ctdb, struct event_context *ev)
  37 {
  38         TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
  39         TDB_DATA key, data;
  40         struct ctdb_record_handle *h;
  41         static time_t t = 0, t2;
  42
  43         key.dptr = discard_const(TESTKEY);
  44         key.dsize = strlen(TESTKEY);
  45
  46 //      printf("Trying to fetch lock the record ...\n");
  47
  48         h = ctdb_fetch_readonly_lock(ctdb_db, tmp_ctx, key, &data, 1);
  49         if (h == NULL) {
  50                 printf("Failed to fetch record '%s' on node %d\n",
  51                         (const char *)key.dptr, ctdb_get_pnn(ctdb));
  52                 talloc_free(tmp_ctx);
  53                 exit(10);
  54         }
  55
  56         count++;
  57         t2 = time(NULL);
  58         if (t != 0 && t != t2) {
  59                 static int last_count = 0;
  60
  61                 printf("count : %d\n", count - last_count);
  62                 last_count = count;
  63         }
  64         t = t2;
  65
  66         talloc_free(tmp_ctx);
  67 }
  68
  69 /*
  70   main program
  71 */
  72 int main(int argc, const char *argv[])
  73 {
  74         struct ctdb_context *ctdb;
  75         TDB_DATA key;
  76
  77         struct poptOption popt_options[] = {
  78                 POPT_AUTOHELP
  79                 POPT_CTDB_CMDLINE
  80                 { "record",      'r', POPT_ARG_STRING, &TESTKEY, 0, "record", "string" },
  81                 POPT_TABLEEND
  82         };
  83         int opt, ret;
  84         const char **extra_argv;
  85         int extra_argc = 0;
  86         poptContext pc;
  87         struct event_context *ev;
  88
  89         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
  90
  91         while ((opt = poptGetNextOpt(pc)) != -1) {
  92                 switch (opt) {
  93                 default:
  94                         fprintf(stderr, "Invalid option %s: %s\n",
  95                                 poptBadOption(pc, 0), poptStrerror(opt));
  96                         exit(1);
  97                 }
  98         }
  99
 100         /* setup the remaining options for the main program to use */
 101         extra_argv = poptGetArgs(pc);
 102         if (extra_argv) {
 103                 extra_argv++;
 104                 while (extra_argv[extra_argc]) extra_argc++;
 105         }
 106
 107         ev = event_context_init(NULL);
 108
 109         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(5, 0));
 110         if (ctdb == NULL) {
 111                 exit(1);
 112         }
 113
 114         key.dptr  = discard_const(TESTKEY);
 115         key.dsize = strlen(TESTKEY);
 116
 117         ret = ctdb_ctrl_getvnnmap(ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb, &ctdb->vnn_map);
 118         if (ret != 0) {
 119                 printf("failed to get vnnmap\n");
 120                 exit(10);
 121         }
 122         printf("Record:%s\n", TESTKEY);
 123         printf("Lmaster : %d\n", ctdb_lmaster(ctdb, &key));
 124
 125         /* attach to a specific database */
 126         ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(5, 0), "test.tdb", false, 0);
 127         if (!ctdb_db) {
 128                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 129                 exit(1);
 130         }
 131
 132         printf("Waiting for cluster\n");
 133         while (1) {
 134                 uint32_t recmode=1;
 135                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 136                 if (recmode == 0) break;
 137                 event_loop_once(ev);
 138         }
 139
 140         while (1) {
 141                 fetch_lock_once(ctdb, ev);
 142         }
 143
 144         return 0;
 145 }