3 This test just fetch_locks a record bumps the RSN and then writes new content
5 Copyright (C) Ronnie Sahlberg 2009
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.
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.
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/>.
22 #include "lib/tevent/tevent.h"
23 #include "system/filesys.h"
26 #include "ctdb_private.h"
28 static struct ctdb_db_context *ctdb_db;
30 #define TESTKEY "testkey"
34 Just try locking/unlocking a single record once
36 static void fetch_lock_once(struct ctdb_context *ctdb, struct event_context *ev, uint32_t generation)
38 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
40 struct ctdb_record_handle *h;
41 struct ctdb_ltdb_header *header;
44 key.dptr = discard_const(TESTKEY);
45 key.dsize = strlen(TESTKEY);
47 printf("Trying to fetch lock the record ...\n");
49 h = ctdb_fetch_readonly_lock(ctdb_db, tmp_ctx, key, &data, false);
51 printf("Failed to fetch record '%s' on node %d\n",
52 (const char *)key.dptr, ctdb_get_pnn(ctdb));
57 printf("Record fetchlocked.\n");
58 header = talloc_memdup(tmp_ctx, ctdb_header_from_record_handle(h), sizeof(*header));
59 printf("RSN:%d\n", (int)header->rsn);
61 printf("Record released.\n");
63 printf("Write new record with RSN+10\n");
65 data.dptr = (void *)talloc_asprintf(tmp_ctx, "%d", (int)header->rsn);
66 data.dsize = strlen((char *)data.dptr);
68 ret = ctdb_ctrl_updaterecord(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb_db, key, header, data);
70 printf("Failed to writerecord, ret==%d\n", ret);
74 printf("re-fetch the record\n");
75 h = ctdb_fetch_lock(ctdb_db, tmp_ctx, key, &data);
77 printf("Failed to fetch record '%s' on node %d\n",
78 (const char *)key.dptr, ctdb_get_pnn(ctdb));
83 printf("Record fetchlocked.\n");
84 header = talloc_memdup(tmp_ctx, ctdb_header_from_record_handle(h), sizeof(*header));
85 printf("RSN:%d\n", (int)header->rsn);
87 printf("Record released.\n");
95 int main(int argc, const char *argv[])
97 struct ctdb_context *ctdb;
99 struct poptOption popt_options[] = {
105 const char **extra_argv;
108 struct event_context *ev;
109 struct ctdb_vnn_map *vnnmap=NULL;
111 pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
113 while ((opt = poptGetNextOpt(pc)) != -1) {
116 fprintf(stderr, "Invalid option %s: %s\n",
117 poptBadOption(pc, 0), poptStrerror(opt));
122 /* setup the remaining options for the main program to use */
123 extra_argv = poptGetArgs(pc);
126 while (extra_argv[extra_argc]) extra_argc++;
129 ev = event_context_init(NULL);
131 ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(5, 0));
133 /* attach to a specific database */
134 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(5, 0), "test.tdb", false, 0);
136 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
140 printf("Waiting for cluster\n");
143 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
144 if (recmode == 0) break;
149 if (ctdb_ctrl_getvnnmap(ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb, &vnnmap) != 0) {
150 printf("Unable to get vnnmap from local node\n");
153 printf("Current Generation %d\n", (int)vnnmap->generation);
155 fetch_lock_once(ctdb, ev, vnnmap->generation);