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/*
* Copyright (C) 2008 - 2011 Vivien Malerba <malerba@gnome-db.org>
* Copyright (C) 2011 Murray Cumming <murrayc@murrayc.com>
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <libgda/libgda.h>
#include <string.h>
#include <unistd.h>
#include "common.h"
#define NTHREADS 10
#define DBNAME "testdb"
#define DBDIR "."
#define DEBUG_PRINT
#undef DEBUG_PRINT
/*
* tests
*/
typedef gboolean (*TestFunc) (GError **);
static gboolean test1 (GError **error);
TestFunc tests[] = {
test1,
};
int
main (int argc, char** argv)
{
gchar *fname;
GError *error = NULL;
#if GLIB_CHECK_VERSION(2,36,0)
#else
g_type_init ();
#endif
gda_init ();
/* set up the test database */
fname = g_build_filename (ROOT_DIR, "tests", "multi-threading", "testdb.sql", NULL);
if (!create_sqlite_db (DBDIR, DBNAME, fname, &error)) {
g_print ("Cannot create test database: %s\n", error && error->message ?
error->message : "no detail");
return 1;
}
g_free (fname);
guint failures = 0;
guint j, ntests = 0;;
for (j = 0; j < 500; j++) {
guint i;
#ifdef DEBUG_PRINT
g_print ("================================================== test %d\n", j);
#else
g_print (".");
fflush (stdout);
#endif
for (i = 0; i < sizeof (tests) / sizeof (TestFunc); i++) {
GError *error = NULL;
if (! tests[i] (&error)) {
g_print ("Test %d failed: %s\n", i+1,
error && error->message ? error->message : "No detail");
if (error)
g_error_free (error);
failures ++;
}
ntests ++;
}
}
g_print ("\nTESTS COUNT: %d\n", ntests);
g_print ("FAILURES: %d\n", failures);
return failures != 0 ? 1 : 0;
}
typedef struct _ThData {
GMutex *start_lock;
GThread *thread;
GdaConnection *cnc;
gint th_id;
gboolean error;
} ThData;
static gboolean
test_multiple_threads (GThreadFunc func, GError **error)
{
ThData data[NTHREADS];
gint i;
GdaConnection *cnc = NULL;
/* open cnc */
gchar *cnc_string;
gchar *edir, *edbname;
edir = gda_rfc1738_encode (DBDIR);
edbname = gda_rfc1738_encode (DBNAME);
cnc_string = g_strdup_printf ("DB_DIR=%s;DB_NAME=%s", edir, edbname);
g_free (edir);
g_free (edbname);
cnc = gda_connection_open_from_string ("SQLite", cnc_string, NULL,
GDA_CONNECTION_OPTIONS_NONE, NULL);
g_free (cnc_string);
if (!cnc)
return FALSE;
g_object_set (G_OBJECT (cnc), "thread-owner", g_thread_self (), NULL);
/* prepare threads data */
for (i = 0; i < NTHREADS; i++) {
ThData *d = &(data[i]);
d->start_lock = g_mutex_new ();
g_mutex_lock (d->start_lock);
d->thread = NULL;
d->cnc = cnc;
d->th_id = i;
d->error = FALSE;
}
/* start all the threads, they will lock on d->start_lock */
for (i = 0; i < NTHREADS; i++) {
ThData *d = &(data[i]);
#ifdef DEBUG_PRINT
g_print ("Running thread %d\n", d->th_id);
#endif
d->thread = g_thread_create (func, d, TRUE, NULL);
#ifdef DEBUG_PRINT
g_print ("Running thread %d has pointer %p\n", d->th_id, d->thread);
#endif
}
/* unlock all the threads */
for (i = 0; i < NTHREADS; i++) {
ThData *d = &(data[i]);
g_mutex_unlock (d->start_lock);
}
gboolean retval = TRUE;
for (i = 0; i < NTHREADS; i++) {
ThData *d = &(data[i]);
g_object_set (G_OBJECT (cnc), "thread-owner", d->thread, NULL);
g_thread_join (d->thread);
if (d->error)
retval = FALSE;
}
for (i = 0; i < NTHREADS; i++) {
ThData *d = &(data[i]);
g_mutex_free (d->start_lock);
}
g_object_unref (cnc);
return retval;
}
/*
* Run SELECT on the same connection
*/
gpointer
test1_start_thread (ThData *data)
{
/* initially start locked */
g_mutex_lock (data->start_lock);
g_mutex_unlock (data->start_lock);
/* threads use @cnc */
if (gda_lockable_trylock ((GdaLockable*) data->cnc)) {
#ifdef DEBUG_PRINT
g_print ("Th %d has tried to lock cnc and succeeded\n", data->th_id);
#endif
}
else {
#ifdef DEBUG_PRINT
g_print ("Th %d has tried to lock cnc and failed, locking it (may block)...\n", data->th_id);
#endif
gda_lockable_lock ((GdaLockable*) data->cnc);
}
gda_lockable_unlock ((GdaLockable*) data->cnc);
#ifdef DEBUG_PRINT
g_print ("Th %d has unlocked cnc\n", data->th_id);
#endif
gda_lockable_lock ((GdaLockable*) data->cnc);
#ifdef DEBUG_PRINT
g_print ("Th %d has locked cnc\n", data->th_id);
#endif
g_thread_yield ();
gda_lockable_lock ((GdaLockable*) data->cnc);
#ifdef DEBUG_PRINT
g_print ("Th %d has re-locked cnc\n", data->th_id);
#endif
g_thread_yield ();
gda_lockable_unlock ((GdaLockable*) data->cnc);
#ifdef DEBUG_PRINT
g_print ("Th %d has unlocked cnc\n", data->th_id);
#endif
g_thread_yield ();
gda_lockable_unlock ((GdaLockable*) data->cnc);
#ifdef DEBUG_PRINT
g_print ("Th %d has re-unlocked cnc\n", data->th_id);
#endif
g_thread_yield ();
#ifdef DEBUG_PRINT
g_print ("Th %d finished\n", data->th_id);
#endif
return NULL;
}
static gboolean
test1 (GError **error)
{
return test_multiple_threads ((GThreadFunc) test1_start_thread, error);
}
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