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/* Copyright (C) 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#include <tap.h>
#include <my_global.h>
#include <my_sys.h>
#include <my_atomic.h>
#include <lf.h>
#include <m_string.h>
#include "../trnman.h"
pthread_mutex_t rt_mutex;
pthread_attr_t attr;
size_t stacksize= 0;
#define STACK_SIZE (((int)stacksize-2048)*STACK_DIRECTION)
int rt_num_threads;
int litmus;
/*
create and end (commit or rollback) transactions randomly
*/
#define MAX_ITER 100
pthread_handler_t test_trnman(void *arg)
{
uint x, y, i, n;
TRN *trn[MAX_ITER];
int m= (*(int *)arg);
if (my_thread_init())
BAIL_OUT("my_thread_init failed!");
for (x= ((int)(intptr)(&m)); m > 0; )
{
y= x= (x*LL(3628273133) + LL(1500450271)) % LL(9576890767); /* three prime numbers */
m-= n= x % MAX_ITER;
for (i= 0; i < n; i++)
{
trn[i]= trnman_new_trn(0);
if (!trn[i])
{
diag("trnman_new_trn() failed");
litmus++;
}
}
for (i= 0; i < n; i++)
{
y= (y*19 + 7) % 31;
trnman_end_trn(trn[i], y & 1);
}
}
pthread_mutex_lock(&rt_mutex);
rt_num_threads--;
pthread_mutex_unlock(&rt_mutex);
my_thread_end();
return 0;
}
#undef MAX_ITER
void run_test(const char *test, pthread_handler handler, int n, int m)
{
pthread_t *threads;
ulonglong now= microsecond_interval_timer();
int i;
litmus= 0;
threads= (pthread_t *)my_malloc(sizeof(void *)*n, MYF(0));
if (!threads)
{
diag("Out of memory");
abort();
}
diag("Testing %s with %d threads, %d iterations... ", test, n, m);
rt_num_threads= n;
for (i= 0; i < n ; i++)
if (pthread_create(threads+i, &attr, handler, &m))
{
diag("Could not create thread");
abort();
}
for (i= 0 ; i < n ; i++)
pthread_join(threads[i], 0);
now= microsecond_interval_timer() - now;
ok(litmus == 0, "Tested %s in %g secs (%d)", test, ((double)now)/1e6, litmus);
my_free(threads);
}
#define ok_read_from(T1, T2, RES) \
i= trnman_can_read_from(trn[T1], trid[T2]); \
ok(i == RES, "trn" #T1 " %s read from trn" #T2, i ? "can" : "cannot")
#define start_transaction(T) \
trn[T]= trnman_new_trn(0); \
trid[T]= trn[T]->trid
#define commit(T) trnman_commit_trn(trn[T])
#define abort(T) trnman_abort_trn(trn[T])
#define Ntrns 4
void test_trnman_read_from()
{
TRN *trn[Ntrns];
TrID trid[Ntrns];
int i;
start_transaction(0); /* start trn1 */
start_transaction(1); /* start trn2 */
ok_read_from(1, 0, 0);
commit(0); /* commit trn1 */
start_transaction(2); /* start trn4 */
abort(2); /* abort trn4 */
start_transaction(3); /* start trn5 */
ok_read_from(3, 0, 1);
ok_read_from(3, 1, 0);
ok_read_from(3, 2, 0);
ok_read_from(3, 3, 1);
commit(1); /* commit trn2 */
ok_read_from(3, 1, 0);
commit(3); /* commit trn5 */
}
int main(int argc __attribute__((unused)), char **argv)
{
MY_INIT(argv[0]);
plan(7);
if (my_atomic_initialize())
return exit_status();
pthread_mutex_init(&rt_mutex, 0);
pthread_attr_init(&attr);
#ifdef HAVE_PTHREAD_ATTR_GETSTACKSIZE
pthread_attr_getstacksize(&attr, &stacksize);
if (stacksize == 0)
#endif
stacksize= PTHREAD_STACK_MIN;
#define CYCLES 10000
#define THREADS 10
trnman_init(0);
test_trnman_read_from();
run_test("trnman", test_trnman, THREADS, CYCLES);
diag("mallocs: %d", trnman_allocated_transactions);
{
ulonglong now= microsecond_interval_timer();
trnman_destroy();
now= microsecond_interval_timer() - now;
diag("trnman_destroy: %g", ((double)now)/1e6);
}
pthread_mutex_destroy(&rt_mutex);
my_end(0);
return exit_status();
}
#include "../ma_check_standalone.h"
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