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/*
simple ctdb test tool
This test just fetch_locks a record bumps the RSN and then writes new content
Copyright (C) Ronnie Sahlberg 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/filesys.h"
#include "system/network.h"
#include <popt.h>
#include <talloc.h>
#include <tevent.h>
#include "lib/util/time.h"
#include "ctdb_private.h"
#include "ctdb_client.h"
#include "common/cmdline.h"
#include "common/common.h"
static struct ctdb_db_context *ctdb_db;
#define TESTKEY "testkey"
/*
Just try locking/unlocking a single record once
*/
static void fetch_lock_once(struct ctdb_context *ctdb,
struct tevent_context *ev, uint32_t generation)
{
TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
TDB_DATA key, data;
struct ctdb_record_handle *h;
struct ctdb_ltdb_header *header;
int ret;
key.dptr = discard_const(TESTKEY);
key.dsize = strlen(TESTKEY);
printf("Trying to fetch lock the record ...\n");
h = ctdb_fetch_lock(ctdb_db, tmp_ctx, key, &data);
if (h == NULL) {
printf("Failed to fetch record '%s' on node %d\n",
(const char *)key.dptr, ctdb_get_pnn(ctdb));
talloc_free(tmp_ctx);
exit(10);
}
printf("Record fetchlocked.\n");
header = talloc_memdup(tmp_ctx, ctdb_header_from_record_handle(h), sizeof(*header));
printf("RSN:%d\n", (int)header->rsn);
talloc_free(h);
printf("Record released.\n");
printf("Write new record with RSN+10\n");
header->rsn += 10;
data.dptr = (void *)talloc_asprintf(tmp_ctx, "%d", (int)header->rsn);
data.dsize = strlen((char *)data.dptr);
ret = ctdb_ctrl_updaterecord(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb_db, key, header, data);
if (ret != 0) {
printf("Failed to writerecord, ret==%d\n", ret);
exit(1);
}
printf("re-fetch the record\n");
h = ctdb_fetch_lock(ctdb_db, tmp_ctx, key, &data);
if (h == NULL) {
printf("Failed to fetch record '%s' on node %d\n",
(const char *)key.dptr, ctdb_get_pnn(ctdb));
talloc_free(tmp_ctx);
exit(10);
}
printf("Record fetchlocked.\n");
header = talloc_memdup(tmp_ctx, ctdb_header_from_record_handle(h), sizeof(*header));
printf("RSN:%d\n", (int)header->rsn);
talloc_free(h);
printf("Record released.\n");
talloc_free(tmp_ctx);
}
/*
main program
*/
int main(int argc, const char *argv[])
{
struct ctdb_context *ctdb;
struct poptOption popt_options[] = {
POPT_AUTOHELP
POPT_CTDB_CMDLINE
POPT_TABLEEND
};
int opt;
const char **extra_argv;
int extra_argc = 0;
poptContext pc;
struct tevent_context *ev;
struct ctdb_vnn_map *vnnmap=NULL;
pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "Invalid option %s: %s\n",
poptBadOption(pc, 0), poptStrerror(opt));
exit(1);
}
}
/* setup the remaining options for the main program to use */
extra_argv = poptGetArgs(pc);
if (extra_argv) {
extra_argv++;
while (extra_argv[extra_argc]) extra_argc++;
}
ev = tevent_context_init(NULL);
ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(5, 0));
if (ctdb == NULL) {
exit(1);
}
/* attach to a specific database */
ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(5, 0), "test.tdb", false, 0);
if (!ctdb_db) {
printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
printf("Waiting for cluster\n");
while (1) {
uint32_t recmode=1;
ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
if (recmode == 0) break;
tevent_loop_once(ev);
}
if (ctdb_ctrl_getvnnmap(ctdb, timeval_zero(), CTDB_CURRENT_NODE, ctdb, &vnnmap) != 0) {
printf("Unable to get vnnmap from local node\n");
exit(1);
}
printf("Current Generation %d\n", (int)vnnmap->generation);
fetch_lock_once(ctdb, ev, vnnmap->generation);
return 0;
}
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