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tests: add some tests for GContextSpecificGroup
https://bugzilla.gnome.org/show_bug.cgi?id=742599
This commit is contained in:
Ryan Lortie
parent
548c165a9f
commit
88745c2fa7
@ -1,7 +1,10 @@
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#include "gcontextspecificgroup.c"
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#include <gio/gio.h>
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#include <stdlib.h>
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#include <string.h>
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#define N_THREADS 10
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static gchar *test_file;
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char *test_file_buffer;
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@ -180,6 +183,223 @@ test2_fail (gpointer user_data)
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return FALSE;
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}
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typedef struct
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{
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GObject parent_instance;
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GMainContext *context;
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} PerThreadThing;
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typedef GObjectClass PerThreadThingClass;
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static GType per_thread_thing_get_type (void);
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G_DEFINE_TYPE (PerThreadThing, per_thread_thing, G_TYPE_OBJECT)
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static GContextSpecificGroup group;
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static gpointer instances[N_THREADS];
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static gint is_running;
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static gint current_value;
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static gint observed_values[N_THREADS];
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static void
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start_func (void)
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{
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g_assert (!is_running);
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g_atomic_int_set (&is_running, TRUE);
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}
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static void
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stop_func (void)
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{
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g_assert (is_running);
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g_atomic_int_set (&is_running, FALSE);
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}
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static void
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per_thread_thing_finalize (GObject *object)
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{
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PerThreadThing *thing = (PerThreadThing *) object;
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g_context_specific_group_remove (&group, thing->context, thing, stop_func);
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G_OBJECT_CLASS (per_thread_thing_parent_class)->finalize (object);
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}
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static void
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per_thread_thing_init (PerThreadThing *thing)
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{
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}
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static void
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per_thread_thing_class_init (PerThreadThingClass *class)
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{
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class->finalize = per_thread_thing_finalize;
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g_signal_new ("changed", per_thread_thing_get_type (), G_SIGNAL_RUN_FIRST, 0,
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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}
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static gpointer
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per_thread_thing_get (void)
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{
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return g_context_specific_group_get (&group, per_thread_thing_get_type (),
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G_STRUCT_OFFSET (PerThreadThing, context),
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start_func);
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}
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static gpointer
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test_identity_thread (gpointer user_data)
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{
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guint thread_nr = GPOINTER_TO_UINT (user_data);
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GMainContext *my_context;
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guint i, j;
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my_context = g_main_context_new ();
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g_main_context_push_thread_default (my_context);
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g_assert (!instances[thread_nr]);
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instances[thread_nr] = per_thread_thing_get ();
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g_assert (g_atomic_int_get (&is_running));
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for (i = 0; i < 100; i++)
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{
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gpointer instance = per_thread_thing_get ();
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for (j = 0; j < N_THREADS; j++)
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g_assert ((instance == instances[j]) == (thread_nr == j));
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g_assert (g_atomic_int_get (&is_running));
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g_thread_yield ();
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g_assert (g_atomic_int_get (&is_running));
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}
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for (i = 0; i < 100; i++)
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{
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g_object_unref (instances[thread_nr]);
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for (j = 0; j < N_THREADS; j++)
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g_assert ((instances[thread_nr] == instances[j]) == (thread_nr == j));
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g_assert (g_atomic_int_get (&is_running));
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g_thread_yield ();
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}
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/* drop the last ref */
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g_object_unref (instances[thread_nr]);
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instances[thread_nr] = NULL;
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g_main_context_pop_thread_default (my_context);
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g_main_context_unref (my_context);
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/* at least one thread should see this cleared on exit */
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return GUINT_TO_POINTER (!g_atomic_int_get (&is_running));
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}
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static void
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test_context_specific_identity (void)
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{
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GThread *threads[N_THREADS];
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gboolean exited = FALSE;
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guint i;
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g_assert (!g_atomic_int_get (&is_running));
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for (i = 0; i < N_THREADS; i++)
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threads[i] = g_thread_new ("test", test_identity_thread, GUINT_TO_POINTER (i));
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for (i = 0; i < N_THREADS; i++)
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exited |= GPOINTER_TO_UINT (g_thread_join (threads[i]));
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g_assert (exited);
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g_assert (!g_atomic_int_get (&is_running));
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}
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static void
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changed_emitted (PerThreadThing *thing,
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gpointer user_data)
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{
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gint *observed_value = user_data;
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g_atomic_int_set (observed_value, g_atomic_int_get (¤t_value));
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}
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static gpointer
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test_emit_thread (gpointer user_data)
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{
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gint *observed_value = user_data;
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GMainContext *my_context;
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gpointer instance;
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my_context = g_main_context_new ();
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g_main_context_push_thread_default (my_context);
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instance = per_thread_thing_get ();
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g_assert (g_atomic_int_get (&is_running));
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g_signal_connect (instance, "changed", G_CALLBACK (changed_emitted), observed_value);
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/* observe after connection */
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g_atomic_int_set (observed_value, g_atomic_int_get (¤t_value));
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while (g_atomic_int_get (¤t_value) != -1)
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g_main_context_iteration (my_context, TRUE);
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g_object_unref (instance);
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g_main_context_pop_thread_default (my_context);
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g_main_context_unref (my_context);
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/* at least one thread should see this cleared on exit */
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return GUINT_TO_POINTER (!g_atomic_int_get (&is_running));
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}
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static void
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test_context_specific_emit (void)
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{
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GThread *threads[N_THREADS];
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gboolean exited = FALSE;
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guint i, n;
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g_assert (!g_atomic_int_get (&is_running));
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for (i = 0; i < N_THREADS; i++)
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threads[i] = g_thread_new ("test", test_emit_thread, &observed_values[i]);
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/* make changes and ensure that they are observed */
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for (n = 0; n < 1000; n++)
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{
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guint64 expiry;
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/* don't burn CPU forever */
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expiry = g_get_monotonic_time () + 10 * G_TIME_SPAN_SECOND;
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g_atomic_int_set (¤t_value, n);
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/* wake them to notice */
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for (i = 0; i < g_test_rand_int_range (1, 5); i++)
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g_context_specific_group_emit (&group, g_signal_lookup ("changed", per_thread_thing_get_type ()));
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for (i = 0; i < N_THREADS; i++)
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while (g_atomic_int_get (&observed_values[i]) != n)
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{
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g_thread_yield ();
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if (g_get_monotonic_time () > expiry)
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g_error ("timed out");
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}
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}
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/* tell them to quit */
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g_atomic_int_set (¤t_value, -1);
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g_context_specific_group_emit (&group, g_signal_lookup ("notify", G_TYPE_OBJECT));
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for (i = 0; i < N_THREADS; i++)
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exited |= GPOINTER_TO_UINT (g_thread_join (threads[i]));
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g_assert (exited);
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g_assert (!g_atomic_int_get (&is_running));
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}
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int
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main (int argc, char **argv)
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{
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@ -195,6 +415,8 @@ main (int argc, char **argv)
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g_test_add_func ("/gio/contexts/thread-independence", test_thread_independence);
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g_test_add_func ("/gio/contexts/context-independence", test_context_independence);
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g_test_add_func ("/gio/contexts/context-specific/identity", test_context_specific_identity);
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g_test_add_func ("/gio/contexts/context-specific/emit", test_context_specific_emit);
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ret = g_test_run();
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