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/* This library 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 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2012 Red Hat, Inc
*/
#undef G_DISABLE_ASSERT
#undef G_LOG_DOMAIN
#include <glib.h>
#define NSOURCES 50000
static gboolean
callback (gpointer user_data)
{
g_assert_not_reached ();
return FALSE;
}
static void
shuffle (GSource **sources, int num)
{
int i, a, b;
GSource *tmp;
for (i = 0; i < num * 10; i++)
{
a = g_random_int_range (0, num);
b = g_random_int_range (0, num);
tmp = sources[a];
sources[a] = sources[b];
sources[b] = tmp;
}
}
static void
thread_pool_attach_func (gpointer data,
gpointer user_data)
{
GMainContext *context = user_data;
GSource *source = data;
g_source_attach (source, context);
g_source_unref (source);
}
static void
thread_pool_destroy_func (gpointer data,
gpointer user_data)
{
GSource *source = data;
g_source_destroy (source);
}
int
main (int argc, char **argv)
{
int i;
gint64 start;
gint64 end;
GMainContext *context;
GSource **sources;
GThreadPool *pool;
GError *error = NULL;
context = g_main_context_default ();
sources = g_new0 (GSource *, NSOURCES);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
sources[i] = g_idle_source_new ();
g_source_set_callback (sources[i], callback, NULL, NULL);
g_source_attach (sources[i], context);
}
end = g_get_monotonic_time ();
g_print ("Add same-priority sources: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
#ifdef SLOW
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
g_assert (sources[i] == g_main_context_find_source_by_id (context, g_source_get_id (sources[i])));
end = g_get_monotonic_time ();
g_print ("Find each source: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
#endif
shuffle (sources, NSOURCES);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
g_source_destroy (sources[i]);
g_source_unref (sources[i]);
}
end = g_get_monotonic_time ();
g_print ("Remove in random order: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
/* Make sure they really did get removed */
g_main_context_iteration (context, FALSE);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
sources[i] = g_idle_source_new ();
g_source_set_callback (sources[i], callback, NULL, NULL);
g_source_set_priority (sources[i], i % 100);
g_source_attach (sources[i], context);
}
end = g_get_monotonic_time ();
g_print ("Add different-priority sources: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
#ifdef SLOW
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
g_assert (sources[i] == g_main_context_find_source_by_id (context, g_source_get_id (sources[i])));
end = g_get_monotonic_time ();
g_print ("Find each source: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
#endif
shuffle (sources, NSOURCES);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
g_source_destroy (sources[i]);
g_source_unref (sources[i]);
}
end = g_get_monotonic_time ();
g_print ("Remove in random order: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
/* Make sure they really did get removed */
g_main_context_iteration (context, FALSE);
pool = g_thread_pool_new (thread_pool_attach_func, context,
20, TRUE, NULL);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
sources[i] = g_idle_source_new ();
g_source_set_callback (sources[i], callback, NULL, NULL);
g_thread_pool_push (pool, sources[i], &error);
g_assert_no_error (error);
}
g_thread_pool_free (pool, FALSE, TRUE);
end = g_get_monotonic_time ();
g_print ("Add sources from threads: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
pool = g_thread_pool_new (thread_pool_destroy_func, context,
20, TRUE, NULL);
start = g_get_monotonic_time ();
for (i = 0; i < NSOURCES; i++)
{
g_thread_pool_push (pool, sources[i], &error);
g_assert_no_error (error);
}
g_thread_pool_free (pool, FALSE, TRUE);
end = g_get_monotonic_time ();
g_print ("Remove sources from threads: %" G_GINT64_FORMAT "\n",
(end - start) / 1000);
/* Make sure they really did get removed */
g_main_context_iteration (context, FALSE);
g_free (sources);
return 0;
}
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