/*
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);
}
static void store_records(struct ctdb_context *ctdb, struct event_context *ev)
{
TDB_DATA key, data;
struct ctdb_db_context *ctdb_db;
TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
int ret;
struct ctdb_record_handle *h;
uint32_t i=0;
ctdb_db = ctdb_db_handle(ctdb, "test.tdb");
srandom(time(NULL) ^ getpid());
start_timer();
printf("working with %d records\n", num_records);
while (1) {
unsigned r = random() % num_records;
key.dptr = (uint8_t *)&r;
key.dsize = sizeof(r);
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);
return;
}
if (random() % 100 < delete_pct) {
data.dptr = NULL;
data.dsize = 0;
} else {
data.dptr = talloc_zero_size(h, data.dsize + sizeof(r));
data.dsize += sizeof(r);
}
ret = ctdb_record_store(h, data);
if (ret != 0) {
printf("Failed to store record\n");
}
if (data.dptr == NULL && data.dsize == 0) {
struct ctdb_control_schedule_for_deletion *dd;
TDB_DATA indata;
int32_t status;
indata.dsize = offsetof(struct ctdb_control_schedule_for_deletion, key) + key.dsize;
indata.dptr = talloc_zero_array(ctdb, uint8_t, indata.dsize);
if (indata.dptr == NULL) {
printf("out of memory\n");
exit(1);
}
dd = (struct ctdb_control_schedule_for_deletion *)(void *)indata.dptr;
dd->db_id = ctdb_db->db_id;
dd->hdr = *ctdb_header_from_record_handle(h);
dd->keylen = key.dsize;
memcpy(dd->key, key.dptr, key.dsize);
ret = ctdb_control(ctdb,
CTDB_CURRENT_NODE,
ctdb_db->db_id,
CTDB_CONTROL_SCHEDULE_FOR_DELETION,
0, /* flags */
indata,
NULL, /* mem_ctx */
NULL, /* outdata */
&status,
NULL, /* timeout : NULL == wait forever */
NULL); /* error message */
talloc_free(indata.dptr);
if (ret != 0 || status != 0) {
DEBUG(DEBUG_ERR, (__location__ " Error sending "
"SCHEDULE_FOR_DELETION "
"control.\n"));
}
}
talloc_free(h);
if (i % 1000 == 0) {
printf("%7.0f recs/second %u total\r", 1000.0 / end_timer(), i);
fflush(stdout);
start_timer();
}
i++;
}
talloc_free(tmp_ctx);
}
static void store_records(struct ctdb_context *ctdb, struct event_context *ev)
{
TDB_DATA key, data;
struct ctdb_db_context *ctdb_db;
TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
int ret;
struct ctdb_record_handle *h;
uint32_t i;
ctdb_db = ctdb_db_handle(ctdb, "test.tdb");
printf("creating %d records\n", num_records);
for (i=0;i<num_records;i++) {
int r = base_rec + i;
key.dptr = (uint8_t *)&r;
key.dsize = sizeof(uint32_t);
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);
return;
}
data.dptr = (uint8_t *)&i;
data.dsize = sizeof(uint32_t);
ret = ctdb_record_store(h, data);
talloc_free(h);
if (ret != 0) {
printf("Failed to store record\n");
}
if (i % 1000 == 0) {
printf("%u\r", i);
fflush(stdout);
}
}
printf("fetching all %d records\n", num_records);
while (1) {
for (i=0;i<num_records;i++) {
int r = base_rec + i;
key.dptr = (uint8_t *)&r;
key.dsize = sizeof(uint32_t);
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);
return;
}
talloc_free(h);
}
sleep(1);
printf(".");
fflush(stdout);
}
talloc_free(tmp_ctx);
}
