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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*======
This file is part of PerconaFT.
Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
PerconaFT is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2,
as published by the Free Software Foundation.
PerconaFT 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 PerconaFT. If not, see <http://www.gnu.org/licenses/>.
----------------------------------------
PerconaFT is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License, version 3,
as published by the Free Software Foundation.
PerconaFT 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
======= */
#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
// This test, when run under helgrind, should detect the race problem documented in #3219.
// The test:
// checkpointing runs (in one thread)
// another thread does an ft lookup.
// We expect to see a lock-acquisition error.
#include "test.h"
#include <pthread.h>
static DB_ENV *env;
static DB *db;
static void
insert(int i, DB_TXN *txn)
{
char hello[30], there[30];
snprintf(hello, sizeof(hello), "hello%d", i);
snprintf(there, sizeof(there), "there%d", i);
DBT key, val;
int r=db->put(db, txn,
dbt_init(&key, hello, strlen(hello)+1),
dbt_init(&val, there, strlen(there)+1),
0);
CKERR(r);
}
static void
lookup(int i, DB_TXN *txn)
// Do a lookup, but don't complain if it's not there.
{
char hello[30], there[30], expectthere[30];
snprintf(hello, sizeof(hello), "hello%d", i);
snprintf(expectthere, sizeof(expectthere), "there%d", i);
DBT key, val;
val.data = there;
val.ulen = sizeof there;
val.flags = DB_DBT_USERMEM;
int r=db->get(db, txn,
dbt_init(&key, hello, strlen(hello)+1),
&val,
0);
if (r==0) {
assert(val.data==there);
assert(val.size==strlen(expectthere)+1);
//printf("Found %s, expected %s\n", there, expectthere);
assert(strcmp(there, expectthere)==0);
}
}
#define N_ROWS 1000000
#define N_TXNS 10000
#define N_ROWS_PER_TXN 1
#define INITIAL_SIZE 1000
//#define N_TXNS 10
//#define PER_TXN 10000
static void
setup (void) {
int r;
toku_os_recursive_delete(TOKU_TEST_FILENAME);
toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO);
r = db_env_create(&env, 0); CKERR(r);
r = env->set_redzone(env, 0); CKERR(r);
r = env->set_cachesize(env, 0, 128*1024, 1); CKERR(r);
r = env->open(env, TOKU_TEST_FILENAME, DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_MPOOL|DB_INIT_TXN|DB_CREATE|DB_PRIVATE, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
r = db_create(&db, env, 0); CKERR(r);
r = db->set_pagesize(db, 4096); CKERR(r);
{
DB_TXN *txn;
r = env->txn_begin(env, 0, &txn, 0); CKERR(r);
r = db->open(db, txn, "foo.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
r = txn->commit(txn, 0); CKERR(r);
}
{
DB_TXN *txn;
r = env->txn_begin(env, 0, &txn, 0); CKERR(r);
for (int i=0; i<INITIAL_SIZE; i++) insert(random()%N_ROWS, txn);
r = txn->commit(txn, 0); CKERR(r);
}
}
static void
finish (void) {
int r;
r = db->close(db, 0); CKERR(r);
r = env->close(env, 0); CKERR(r);
}
volatile int finished = false;
// Thread A performs checkpoints
static void*
start_a (void *arg __attribute__((__unused__))) {
//r=env->txn_checkpoint(env, 0, 0, 0); CKERR(r);
while (!finished) {
int r;
r=env->txn_checkpoint(env, 0, 0, 0); CKERR(r);
sleep(1);
}
return NULL;
}
// Thread B performs insertions (eventually they start overwriting the same record).
static void*
start_b (void *arg __attribute__((__unused__))) {
int r;
for (int j=0; j<N_TXNS; j++) {
if (verbose) {
printf("."); fflush(stdout);
if (j%(N_TXNS/10)==0) printf("\n");
}
DB_TXN *txn;
r = env->txn_begin(env, 0, &txn, 0); CKERR(r);
for (int i=0; i<N_ROWS_PER_TXN; i++) {
insert(random()%N_ROWS, txn);
}
r = txn->commit(txn, DB_TXN_NOSYNC); CKERR(r);
}
finished = true;
return NULL;
}
// Thread C performs lookups
static void*
start_c (void *arg __attribute__((__unused__))) {
int r;
while (!finished) {
DB_TXN *txn;
r = env->txn_begin(env, 0, &txn, 0); CKERR(r);
lookup(random()%N_ROWS, txn);
r = txn->commit(txn, DB_TXN_NOSYNC); CKERR(r);
}
return NULL;
}
typedef void *(*pthread_fun)(void*);
static void
run_test (void)
{
setup();
pthread_t t[3];
pthread_fun funs[3] = {start_a, start_b, start_c};
finished = false;
for (int i=0; i<3; i++) {
int r = pthread_create(&t[i], NULL, funs[i], NULL);
assert(r==0);
}
for (int i=0; i<3; i++) {
void *rv;
int r = pthread_join(t[i], &rv);
assert(r==0 && rv==NULL);
}
finish();
}
int test_main (int argc, char*const argv[]) {
parse_args(argc, argv);
run_test();
if (verbose) printf("\n");
return 0;
}
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