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tests/mainloop: Add a test for recursive child sources

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https://bugzilla.gnome.org/show_bug.cgi?id=669260
This commit is contained in:
Colin Walters 2012-04-16 11:50:05 -04:00 committed by Dan Winship
parent bdbb531340
commit 3054ecf109
1 changed files with 57 additions and 0 deletions
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57
glib/tests/mainloop.c
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@ -409,6 +409,62 @@ test_child_sources (void)
g_main_context_unref (ctx); g_main_context_unref (ctx);
} }
static void
test_recursive_child_sources (void)
{
GMainContext *ctx;
GMainLoop *loop;
GSource *parent, *child_b, *child_c, *end;
ctx = g_main_context_new ();
loop = g_main_loop_new (ctx, FALSE);
a = b = c = 0;
parent = g_timeout_source_new (500);
g_source_set_callback (parent, count_calls, &a, NULL);
child_b = g_timeout_source_new (220);
g_source_set_callback (child_b, count_calls, &b, NULL);
g_source_add_child_source (parent, child_b);
child_c = g_timeout_source_new (430);
g_source_set_callback (child_c, count_calls, &c, NULL);
g_source_add_child_source (child_b, child_c);
g_source_attach (parent, ctx);
end = g_timeout_source_new (2010);
g_source_set_callback (end, (GSourceFunc)g_main_loop_quit, loop, NULL);
g_source_attach (end, ctx);
g_source_unref (end);
g_main_loop_run (loop);
/* Sequence of events:
* 220 b (b = 440, a = 720)
* 430 c (c = 860, b = 650, a = 930)
* 650 b (b = 870, a = 1150)
* 860 c (c = 1290, b = 1080, a = 1360)
* 1080 b (b = 1300, a = 1580)
* 1290 c (c = 1720, b = 1510, a = 1790)
* 1510 b (b = 1730, a = 2010)
* 1720 c (c = 2150, b = 1940, a = 2220)
* 1940 b (b = 2160, a = 2440)
*/
g_assert_cmpint (a, ==, 9);
g_assert_cmpint (b, ==, 9);
g_assert_cmpint (c, ==, 4);
g_source_unref (parent);
g_source_unref (child_b);
g_source_unref (child_c);
g_main_loop_unref (loop);
g_main_context_unref (ctx);
}
int int
main (int argc, char *argv[]) main (int argc, char *argv[])
{ {
@ -420,6 +476,7 @@ main (int argc, char *argv[])
g_test_add_func ("/mainloop/priorities", test_priorities); g_test_add_func ("/mainloop/priorities", test_priorities);
g_test_add_func ("/mainloop/invoke", test_invoke); g_test_add_func ("/mainloop/invoke", test_invoke);
g_test_add_func ("/mainloop/child_sources", test_child_sources); g_test_add_func ("/mainloop/child_sources", test_child_sources);
g_test_add_func ("/mainloop/recursive_child_sources", test_recursive_child_sources);
return g_test_run (); return g_test_run ();
} }