blob: 84c13fb21a3059442071654ff6300e61cef9b960 [file] [log] [blame]
/*
* Copyright 2011 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* See the included COPYING file for more information.
*/
#include <glib.h>
/* We want the g_atomic_pointer_get() macros to work when compiling third party
* projects with -Wbad-function-cast.
* See https://gitlab.gnome.org/GNOME/glib/issues/1041. */
#pragma GCC diagnostic error "-Wbad-function-cast"
static void
test_types (void)
{
const gint *csp;
const gint * const *cspp;
guint u, u2;
gint s, s2;
gpointer vp, vp2;
int *ip, *ip2;
gsize gs, gs2;
gboolean res;
csp = &s;
cspp = &csp;
g_atomic_int_set (&u, 5);
u2 = g_atomic_int_get (&u);
g_assert_cmpint (u2, ==, 5);
res = g_atomic_int_compare_and_exchange (&u, 6, 7);
g_assert (!res);
g_assert_cmpint (u, ==, 5);
g_atomic_int_add (&u, 1);
g_assert_cmpint (u, ==, 6);
g_atomic_int_inc (&u);
g_assert_cmpint (u, ==, 7);
res = g_atomic_int_dec_and_test (&u);
g_assert (!res);
g_assert_cmpint (u, ==, 6);
u2 = g_atomic_int_and (&u, 5);
g_assert_cmpint (u2, ==, 6);
g_assert_cmpint (u, ==, 4);
u2 = g_atomic_int_or (&u, 8);
g_assert_cmpint (u2, ==, 4);
g_assert_cmpint (u, ==, 12);
u2 = g_atomic_int_xor (&u, 4);
g_assert_cmpint (u2, ==, 12);
g_assert_cmpint (u, ==, 8);
g_atomic_int_set (&s, 5);
s2 = g_atomic_int_get (&s);
g_assert_cmpint (s2, ==, 5);
res = g_atomic_int_compare_and_exchange (&s, 6, 7);
g_assert (!res);
g_assert_cmpint (s, ==, 5);
g_atomic_int_add (&s, 1);
g_assert_cmpint (s, ==, 6);
g_atomic_int_inc (&s);
g_assert_cmpint (s, ==, 7);
res = g_atomic_int_dec_and_test (&s);
g_assert (!res);
g_assert_cmpint (s, ==, 6);
s2 = g_atomic_int_and (&s, 5);
g_assert_cmpint (s2, ==, 6);
g_assert_cmpint (s, ==, 4);
s2 = g_atomic_int_or (&s, 8);
g_assert_cmpint (s2, ==, 4);
g_assert_cmpint (s, ==, 12);
s2 = g_atomic_int_xor (&s, 4);
g_assert_cmpint (s2, ==, 12);
g_assert_cmpint (s, ==, 8);
g_atomic_pointer_set (&vp, 0);
vp2 = g_atomic_pointer_get (&vp);
g_assert (vp2 == 0);
res = g_atomic_pointer_compare_and_exchange (&vp, 0, 0);
g_assert (res);
g_assert (vp == 0);
g_atomic_pointer_set (&ip, 0);
ip2 = g_atomic_pointer_get (&ip);
g_assert (ip2 == 0);
res = g_atomic_pointer_compare_and_exchange (&ip, 0, 0);
g_assert (res);
g_assert (ip == 0);
g_atomic_pointer_set (&gs, 0);
vp2 = g_atomic_pointer_get (&gs);
gs2 = (gsize) vp2;
g_assert (gs2 == 0);
res = g_atomic_pointer_compare_and_exchange (&gs, 0, 0);
g_assert (res);
g_assert (gs == 0);
gs2 = g_atomic_pointer_add (&gs, 5);
g_assert (gs2 == 0);
g_assert (gs == 5);
gs2 = g_atomic_pointer_and (&gs, 6);
g_assert (gs2 == 5);
g_assert (gs == 4);
gs2 = g_atomic_pointer_or (&gs, 8);
g_assert (gs2 == 4);
g_assert (gs == 12);
gs2 = g_atomic_pointer_xor (&gs, 4);
g_assert (gs2 == 12);
g_assert (gs == 8);
g_assert (g_atomic_int_get (csp) == s);
g_assert (g_atomic_pointer_get (cspp) == csp);
/* repeat, without the macros */
#undef g_atomic_int_set
#undef g_atomic_int_get
#undef g_atomic_int_compare_and_exchange
#undef g_atomic_int_add
#undef g_atomic_int_inc
#undef g_atomic_int_and
#undef g_atomic_int_or
#undef g_atomic_int_xor
#undef g_atomic_int_dec_and_test
#undef g_atomic_pointer_set
#undef g_atomic_pointer_get
#undef g_atomic_pointer_compare_and_exchange
#undef g_atomic_pointer_add
#undef g_atomic_pointer_and
#undef g_atomic_pointer_or
#undef g_atomic_pointer_xor
g_atomic_int_set ((gint*)&u, 5);
u2 = g_atomic_int_get ((gint*)&u);
g_assert_cmpint (u2, ==, 5);
res = g_atomic_int_compare_and_exchange ((gint*)&u, 6, 7);
g_assert (!res);
g_assert_cmpint (u, ==, 5);
g_atomic_int_add ((gint*)&u, 1);
g_assert_cmpint (u, ==, 6);
g_atomic_int_inc ((gint*)&u);
g_assert_cmpint (u, ==, 7);
res = g_atomic_int_dec_and_test ((gint*)&u);
g_assert (!res);
g_assert_cmpint (u, ==, 6);
u2 = g_atomic_int_and (&u, 5);
g_assert_cmpint (u2, ==, 6);
g_assert_cmpint (u, ==, 4);
u2 = g_atomic_int_or (&u, 8);
g_assert_cmpint (u2, ==, 4);
g_assert_cmpint (u, ==, 12);
u2 = g_atomic_int_xor (&u, 4);
g_assert_cmpint (u2, ==, 12);
g_atomic_int_set (&s, 5);
s2 = g_atomic_int_get (&s);
g_assert_cmpint (s2, ==, 5);
res = g_atomic_int_compare_and_exchange (&s, 6, 7);
g_assert (!res);
g_assert_cmpint (s, ==, 5);
g_atomic_int_add (&s, 1);
g_assert_cmpint (s, ==, 6);
g_atomic_int_inc (&s);
g_assert_cmpint (s, ==, 7);
res = g_atomic_int_dec_and_test (&s);
g_assert (!res);
g_assert_cmpint (s, ==, 6);
s2 = g_atomic_int_and ((guint*)&s, 5);
g_assert_cmpint (s2, ==, 6);
g_assert_cmpint (s, ==, 4);
s2 = g_atomic_int_or ((guint*)&s, 8);
g_assert_cmpint (s2, ==, 4);
g_assert_cmpint (s, ==, 12);
s2 = g_atomic_int_xor ((guint*)&s, 4);
g_assert_cmpint (s2, ==, 12);
g_assert_cmpint (s, ==, 8);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
s2 = g_atomic_int_exchange_and_add ((gint*)&s, 1);
G_GNUC_END_IGNORE_DEPRECATIONS
g_assert_cmpint (s2, ==, 8);
g_assert_cmpint (s, ==, 9);
g_atomic_pointer_set (&vp, 0);
vp2 = g_atomic_pointer_get (&vp);
g_assert (vp2 == 0);
res = g_atomic_pointer_compare_and_exchange (&vp, 0, 0);
g_assert (res);
g_assert (vp == 0);
g_atomic_pointer_set (&ip, 0);
ip2 = g_atomic_pointer_get (&ip);
g_assert (ip2 == 0);
res = g_atomic_pointer_compare_and_exchange (&ip, 0, 0);
g_assert (res);
g_assert (ip == 0);
g_atomic_pointer_set (&gs, 0);
vp = g_atomic_pointer_get (&gs);
gs2 = (gsize) vp;
g_assert (gs2 == 0);
res = g_atomic_pointer_compare_and_exchange (&gs, 0, 0);
g_assert (res);
g_assert (gs == 0);
gs2 = g_atomic_pointer_add (&gs, 5);
g_assert (gs2 == 0);
g_assert (gs == 5);
gs2 = g_atomic_pointer_and (&gs, 6);
g_assert (gs2 == 5);
g_assert (gs == 4);
gs2 = g_atomic_pointer_or (&gs, 8);
g_assert (gs2 == 4);
g_assert (gs == 12);
gs2 = g_atomic_pointer_xor (&gs, 4);
g_assert (gs2 == 12);
g_assert (gs == 8);
g_assert (g_atomic_int_get (csp) == s);
g_assert (g_atomic_pointer_get (cspp) == csp);
}
#define THREADS 10
#define ROUNDS 10000
volatile gint bucket[THREADS];
volatile gint atomic;
static gpointer
thread_func (gpointer data)
{
gint idx = GPOINTER_TO_INT (data);
gint i;
gint d;
for (i = 0; i < ROUNDS; i++)
{
d = g_random_int_range (-10, 100);
bucket[idx] += d;
g_atomic_int_add (&atomic, d);
g_thread_yield ();
}
return NULL;
}
static void
test_threaded (void)
{
gint sum;
gint i;
GThread *threads[THREADS];
atomic = 0;
for (i = 0; i < THREADS; i++)
bucket[i] = 0;
for (i = 0; i < THREADS; i++)
threads[i] = g_thread_new ("atomic", thread_func, GINT_TO_POINTER (i));
for (i = 0; i < THREADS; i++)
g_thread_join (threads[i]);
sum = 0;
for (i = 0; i < THREADS; i++)
sum += bucket[i];
g_assert_cmpint (sum, ==, atomic);
}
int
main (int argc, char **argv)
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/atomic/types", test_types);
g_test_add_func ("/atomic/threaded", test_threaded);
return g_test_run ();
}