/*
Just try locking/unlocking a single record once
*/
static void fetch_lock_once(struct ctdb_context *ctdb, struct event_context *ev)
{
TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
TDB_DATA key, data;
struct ctdb_record_handle *h;
static time_t t = 0, t2;
key.dptr = discard_const(TESTKEY);
key.dsize = strlen(TESTKEY);
// printf("Trying to fetch lock the record ...\n");
h = ctdb_fetch_readonly_lock(ctdb_db, tmp_ctx, key, &data, true);
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);
}
count++;
t2 = time(NULL);
if (t != 0 && t != t2) {
static int last_count = 0;
printf("count : %d\n", count - last_count);
last_count = count;
}
t = t2;
talloc_free(tmp_ctx);
}
/*
Just try locking/unlocking a single record once
*/
static void fetch_lock_once(struct ctdb_context *ctdb, struct event_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_readonly_lock(ctdb_db, tmp_ctx, key, &data, false);
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);
}
/*
Just try locking/unlocking a single record once
*/
static void fetch_readonly_once(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key)
{
TDB_DATA data;
struct ctdb_record_handle *h;
printf("Trying to readonly fetch lock the record ...\n");
h = ctdb_fetch_readonly_lock(ctdb_db, ctdb, key, &data, 1);
if (h == NULL) {
fprintf(stderr, "Failed to get readonly lock\n");
exit(1);
}
talloc_free(h);
printf("Record released.\n");
}
