+Mon Aug 1 23:33:47 2005 Tim Janik <timj@imendio.com>
+
+ * tests/refcount/closures.c: test high contention on closure
+ reference counts to trigger and catch non-atomic updates.
+
+ * tests/refcount/objects.c:
+ * tests/refcount/objects2.c:
+ * tests/refcount/properties.c:
+ * tests/refcount/properties2.c:
+ * tests/refcount/signals.c:
+ fixed up test and threading fundamentals. variables accessed from all
+ threads need to be volatile. context switches are enforced by using
+ g_thread_yield(), not g_usleep(1) which may result in busy waits on
+ some platforms. for testcode, always consider all warnings and
+ critical messages fatal. issue the currently running program on
+ stdout. improved progress indicators.
+
+ * tests/refcount/properties.c:
+ * tests/refcount/objects.c:
+ don't overdo the number of testing threads to keep the testing machine
+ usable, 2 threads can produce as much contention as 20 if executing the
+ same code.
+
+ * tests/refcount/signals.c: only start 1 thread per object. GObject
+ doesn't provide mutually exclusive object access, but only mutually
+ exclusive reference count modification.
+
+ * tests/Makefile.am: added closures test.
+
2005-08-01 Tor Lillqvist <tml@novell.com>
* tests/uri-test.c: Make it pass on Win32.
+Mon Aug 1 23:33:47 2005 Tim Janik <timj@imendio.com>
+
+ * tests/refcount/closures.c: test high contention on closure
+ reference counts to trigger and catch non-atomic updates.
+
+ * tests/refcount/objects.c:
+ * tests/refcount/objects2.c:
+ * tests/refcount/properties.c:
+ * tests/refcount/properties2.c:
+ * tests/refcount/signals.c:
+ fixed up test and threading fundamentals. variables accessed from all
+ threads need to be volatile. context switches are enforced by using
+ g_thread_yield(), not g_usleep(1) which may result in busy waits on
+ some platforms. for testcode, always consider all warnings and
+ critical messages fatal. issue the currently running program on
+ stdout. improved progress indicators.
+
+ * tests/refcount/properties.c:
+ * tests/refcount/objects.c:
+ don't overdo the number of testing threads to keep the testing machine
+ usable, 2 threads can produce as much contention as 20 if executing the
+ same code.
+
+ * tests/refcount/signals.c: only start 1 thread per object. GObject
+ doesn't provide mutually exclusive object access, but only mutually
+ exclusive reference count modification.
+
+ * tests/Makefile.am: added closures test.
+
2005-08-01 Tor Lillqvist <tml@novell.com>
* tests/uri-test.c: Make it pass on Win32.
+Mon Aug 1 23:33:47 2005 Tim Janik <timj@imendio.com>
+
+ * tests/refcount/closures.c: test high contention on closure
+ reference counts to trigger and catch non-atomic updates.
+
+ * tests/refcount/objects.c:
+ * tests/refcount/objects2.c:
+ * tests/refcount/properties.c:
+ * tests/refcount/properties2.c:
+ * tests/refcount/signals.c:
+ fixed up test and threading fundamentals. variables accessed from all
+ threads need to be volatile. context switches are enforced by using
+ g_thread_yield(), not g_usleep(1) which may result in busy waits on
+ some platforms. for testcode, always consider all warnings and
+ critical messages fatal. issue the currently running program on
+ stdout. improved progress indicators.
+
+ * tests/refcount/properties.c:
+ * tests/refcount/objects.c:
+ don't overdo the number of testing threads to keep the testing machine
+ usable, 2 threads can produce as much contention as 20 if executing the
+ same code.
+
+ * tests/refcount/signals.c: only start 1 thread per object. GObject
+ doesn't provide mutually exclusive object access, but only mutually
+ exclusive reference count modification.
+
+ * tests/Makefile.am: added closures test.
+
2005-08-01 Tor Lillqvist <tml@novell.com>
* tests/uri-test.c: Make it pass on Win32.
+Mon Aug 1 23:33:47 2005 Tim Janik <timj@imendio.com>
+
+ * tests/refcount/closures.c: test high contention on closure
+ reference counts to trigger and catch non-atomic updates.
+
+ * tests/refcount/objects.c:
+ * tests/refcount/objects2.c:
+ * tests/refcount/properties.c:
+ * tests/refcount/properties2.c:
+ * tests/refcount/signals.c:
+ fixed up test and threading fundamentals. variables accessed from all
+ threads need to be volatile. context switches are enforced by using
+ g_thread_yield(), not g_usleep(1) which may result in busy waits on
+ some platforms. for testcode, always consider all warnings and
+ critical messages fatal. issue the currently running program on
+ stdout. improved progress indicators.
+
+ * tests/refcount/properties.c:
+ * tests/refcount/objects.c:
+ don't overdo the number of testing threads to keep the testing machine
+ usable, 2 threads can produce as much contention as 20 if executing the
+ same code.
+
+ * tests/refcount/signals.c: only start 1 thread per object. GObject
+ doesn't provide mutually exclusive object access, but only mutually
+ exclusive reference count modification.
+
+ * tests/Makefile.am: added closures test.
+
2005-08-01 Tor Lillqvist <tml@novell.com>
* tests/uri-test.c: Make it pass on Win32.
LDADD = $(libgobject) $(libgthread)
-test_programs = \
- signal1 \
- signal2 \
- signal3 \
+test_programs = \
+ closures \
objects \
objects2 \
properties \
- properties2
+ properties2 \
+ signal1 \
+ signal2 \
+ signal3
+
+
signal1_SOURCES = signals.c
signal1_CFLAGS = -DTESTNUM=1 $(AM_CFLAGS)
check_PROGRAMS = $(test_programs)
+all: $(check_PROGRAMS)
+
TESTS = $(test_programs)
TESTS_ENVIRONMENT = srcdir=$(srcdir) \
LIBCHARSET_ALIAS_DIR=$(top_builddir)/glib/libcharset
--- /dev/null
+/* Copyright (C) 2005 Imendio AB
+ *
+ * This software is provided "as is"; redistribution and modification
+ * is permitted, provided that the following disclaimer is retained.
+ *
+ * This software 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.
+ * In no event shall the authors or contributors be liable for any
+ * direct, indirect, incidental, special, exemplary, or consequential
+ * damages (including, but not limited to, procurement of substitute
+ * goods or services; loss of use, data, or profits; or business
+ * interruption) however caused and on any theory of liability, whether
+ * in contract, strict liability, or tort (including negligence or
+ * otherwise) arising in any way out of the use of this software, even
+ * if advised of the possibility of such damage.
+ */
+#include <glib-object.h>
+#include <unistd.h>
+
+#define TEST_POINTER1 ((gpointer) 47)
+#define TEST_POINTER2 ((gpointer) 49)
+#define TEST_INT1 (-77)
+#define TEST_INT2 (78)
+
+/* --- GTest class --- */
+typedef struct {
+ GObject object;
+ gint value;
+ gpointer test_pointer1;
+ gpointer test_pointer2;
+} GTest;
+typedef struct {
+ GObjectClass parent_class;
+ void (*test_signal1) (GTest * test, gint an_int);
+ void (*test_signal2) (GTest * test, gint an_int);
+} GTestClass;
+
+#define G_TYPE_TEST (g_test_get_type ())
+#define G_TEST(test) (G_TYPE_CHECK_INSTANCE_CAST ((test), G_TYPE_TEST, GTest))
+#define G_IS_TEST(test) (G_TYPE_CHECK_INSTANCE_TYPE ((test), G_TYPE_TEST))
+#define G_TEST_CLASS(tclass) (G_TYPE_CHECK_CLASS_CAST ((tclass), G_TYPE_TEST, GTestClass))
+#define G_IS_TEST_CLASS(tclass) (G_TYPE_CHECK_CLASS_TYPE ((tclass), G_TYPE_TEST))
+#define G_TEST_GET_CLASS(test) (G_TYPE_INSTANCE_GET_CLASS ((test), G_TYPE_TEST, GTestClass))
+
+G_DEFINE_TYPE (GTest, g_test, G_TYPE_OBJECT);
+
+/* --- variables --- */
+static volatile gboolean stopping = FALSE;
+static guint test_signal1 = 0;
+static guint test_signal2 = 0;
+static gboolean seen_signal_handler = FALSE;
+static gboolean seen_cleanup = FALSE;
+static gboolean seen_test_int1 = FALSE;
+static gboolean seen_test_int2 = FALSE;
+static gboolean seen_thread1 = FALSE;
+static gboolean seen_thread2 = FALSE;
+
+/* --- functions --- */
+static void
+g_test_init (GTest * test)
+{
+ g_print ("init %p\n", test);
+
+ test->value = 0;
+ test->test_pointer1 = TEST_POINTER1;
+ test->test_pointer2 = TEST_POINTER2;
+}
+
+enum {
+ ARG_0,
+ ARG_TEST_PROP
+};
+
+static void
+g_test_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GTest *test = G_TEST (object);
+ switch (prop_id)
+ {
+ case ARG_TEST_PROP:
+ test->value = g_value_get_int (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+g_test_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GTest *test = G_TEST (object);
+ switch (prop_id)
+ {
+ case ARG_TEST_PROP:
+ g_value_set_int (value, test->value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+g_test_test_signal2 (GTest *test,
+ gint an_int)
+{
+}
+
+static void
+g_test_emit_test_signal1 (GTest *test,
+ gint vint)
+{
+ g_signal_emit (G_OBJECT (test), test_signal1, 0, vint);
+}
+
+static void
+g_test_emit_test_signal2 (GTest *test,
+ gint vint)
+{
+ g_signal_emit (G_OBJECT (test), test_signal2, 0, vint);
+}
+
+static void
+g_test_class_init (GTestClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+ gobject_class->set_property = g_test_set_property;
+ gobject_class->get_property = g_test_get_property;
+
+ test_signal1 = g_signal_new ("test-signal1", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GTestClass, test_signal1), NULL, NULL,
+ g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+ test_signal2 = g_signal_new ("test-signal2", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GTestClass, test_signal2), NULL, NULL,
+ g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TEST_PROP,
+ g_param_spec_int ("test-prop", "Test Prop", "Test property",
+ 0, 1, 0, G_PARAM_READWRITE));
+ klass->test_signal2 = g_test_test_signal2;
+}
+
+static inline guint32
+quick_rand32 (void)
+{
+ static guint32 accu = 2147483563;
+ accu = 1664525 * accu + 1013904223;
+ return accu;
+}
+
+static void
+test_closure (GClosure *closure)
+{
+ /* try to produce high contention in closure->ref_count */
+ guint i = 0, n = quick_rand32() % 199;
+ for (i = 0; i < n; i++)
+ g_closure_ref (closure);
+ g_closure_sink (closure); /* NOP */
+ for (i = 0; i < n; i++)
+ g_closure_unref (closure);
+}
+
+static gpointer
+thread1_main (gpointer data)
+{
+ GClosure *closure = data;
+ while (!stopping)
+ {
+ static guint count = 0;
+ test_closure (closure);
+ if (++count % 10000 == 0)
+ {
+ g_printerr ("c");
+ g_thread_yield(); /* force context switch */
+ seen_thread1 = TRUE;
+ }
+ }
+ return NULL;
+}
+
+static gpointer
+thread2_main (gpointer data)
+{
+ GClosure *closure = data;
+ while (!stopping)
+ {
+ static guint count = 0;
+ test_closure (closure);
+ if (++count % 10000 == 0)
+ {
+ g_printerr ("C");
+ g_thread_yield(); /* force context switch */
+ seen_thread2 = TRUE;
+ }
+ }
+ return NULL;
+}
+
+static void
+test_signal_handler (GTest *test,
+ gint vint,
+ gpointer data)
+{
+ g_assert (data == TEST_POINTER2);
+ g_assert (test->test_pointer1 == TEST_POINTER1);
+ seen_signal_handler = TRUE;
+ seen_test_int1 |= vint == TEST_INT1;
+ seen_test_int2 |= vint == TEST_INT2;
+}
+
+static void
+destroy_data (gpointer data,
+ GClosure *closure)
+{
+ seen_cleanup = data == TEST_POINTER2;
+ g_assert (closure->ref_count == 0);
+}
+
+static void
+test_emissions (GTest *test)
+{
+ g_test_emit_test_signal1 (test, TEST_INT1);
+ g_test_emit_test_signal2 (test, TEST_INT2);
+}
+
+int
+main (int argc,
+ char **argv)
+{
+ const gint n_threads = 1;
+ GThread *thread1, *thread2;
+ GClosure *closure;
+ GTest *object;
+ guint i;
+
+ g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
+ g_type_init ();
+
+ object = g_object_new (G_TYPE_TEST, NULL);
+ closure = g_cclosure_new (G_CALLBACK (test_signal_handler), TEST_POINTER2, destroy_data);
+
+ g_signal_connect_closure (object, "test-signal1", closure, FALSE);
+ g_signal_connect_closure (object, "test-signal2", closure, FALSE);
+
+ stopping = FALSE;
+
+ thread1 = g_thread_create (thread1_main, closure, TRUE, NULL);
+ thread2 = g_thread_create (thread2_main, closure, TRUE, NULL);
+
+ for (i = 0; i < 1000000; i++)
+ {
+ static guint count = 0;
+ test_emissions (object);
+ if (++count % 10000 == 0)
+ {
+ g_printerr (".");
+ g_thread_yield(); /* force context switch */
+ }
+ }
+
+ stopping = TRUE;
+ g_print ("\nstopping\n");
+
+ /* wait for thread shutdown */
+ g_thread_join (thread1);
+ g_thread_join (thread2);
+
+ /* finalize object, destroy signals, run cleanup code */
+ g_object_unref (object);
+
+ g_print ("stopped\n");
+
+ g_assert (seen_thread1 != FALSE);
+ g_assert (seen_thread2 != FALSE);
+ g_assert (seen_test_int1 != FALSE);
+ g_assert (seen_test_int2 != FALSE);
+ g_assert (seen_signal_handler != FALSE);
+ g_assert (seen_cleanup != FALSE);
+
+ return 0;
+}
};
static GType g_test_get_type (void);
-static gboolean stopping;
+static volatile gboolean stopping;
static void g_test_class_init (GTestClass * klass);
static void g_test_init (GTest * test);
static gpointer
run_thread (GTest * test)
{
- gint i = 0;
+ gint i = 1;
while (!stopping) {
g_test_do_refcount (test);
- if ((i++ % 100000) == 0) {
+ if ((i++ % 10000) == 0) {
g_print (".");
- g_usleep (1); /* context switch */
+ g_thread_yield(); /* force context switch */
}
}
gint i;
GTest *test1, *test2;
GArray *test_threads;
+ const guint n_threads = 5;
g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
g_type_init ();
test1 = g_object_new (G_TYPE_TEST, NULL);
stopping = FALSE;
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GThread *thread;
thread = g_thread_create ((GThreadFunc) run_thread, test1, TRUE, NULL);
g_print ("\nstopping\n");
/* join all threads */
- for (i = 0; i < 40; i++) {
+ for (i = 0; i < 2 * n_threads; i++) {
GThread *thread;
thread = g_array_index (test_threads, GThread *, i);
static void
g_test_do_refcount (GTest * test)
{
+ static guint i = 1;
+ if (i++ % 100000 == 0)
+ g_print (".");
g_object_ref (test);
g_object_unref (test);
}
GTest *test;
g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
g_type_init ();
test = g_object_new (G_TYPE_TEST, NULL);
g_test_do_refcount (test);
}
+ g_print ("\n");
+
return 0;
}
struct _GTest
{
GObject object;
-
+ gint id;
gint dummy;
gint count;
};
static GType g_test_get_type (void);
-static gboolean stopping;
+static volatile gboolean stopping;
static void g_test_class_init (GTestClass * klass);
static void g_test_init (GTest * test);
NULL
};
- test_type = g_type_register_static (G_TYPE_OBJECT, "GTest",
- &test_info, 0);
+ test_type = g_type_register_static (G_TYPE_OBJECT, "GTest", &test_info, 0);
}
return test_type;
}
static void
g_test_init (GTest * test)
{
- g_print ("init %p\n", test);
+ static guint static_id = 1;
+ test->id = static_id++;
}
static void
test = G_TEST (object);
- g_print ("dispose %p!\n", object);
-
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static gpointer
run_thread (GTest * test)
{
- gint i = 0;
-
+ gint i = 1;
+
while (!stopping) {
g_test_do_property (test);
- if ((i++ % 100000) == 0) {
- g_print (".");
- g_usleep (1); /* context switch */
- }
+ if ((i++ % 10000) == 0)
+ {
+ g_print (".%c", 'a' + test->id);
+ g_thread_yield(); /* force context switch */
+ }
}
return NULL;
gint i;
GArray *test_objects;
GArray *test_threads;
+ const gint n_threads = 5;
g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
g_type_init ();
test_objects = g_array_new (FALSE, FALSE, sizeof (GTest *));
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GTest *test;
test = g_object_new (G_TYPE_TEST, NULL);
stopping = FALSE;
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GThread *thread;
GTest *test;
thread = g_thread_create ((GThreadFunc) run_thread, test, TRUE, NULL);
g_array_append_val (test_threads, thread);
}
- sleep (5);
+ sleep (3);
stopping = TRUE;
-
g_print ("\nstopping\n");
/* join all threads */
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GThread *thread;
thread = g_array_index (test_threads, GThread *, i);
g_print ("stopped\n");
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GTest *test;
test = g_array_index (test_objects, GTest *, i);
dummy_notify (GObject *object,
GParamSpec *pspec)
{
- count++;
+ count++;
+ if (count % 10000 == 0)
+ g_print (".");
}
static void
GTest *test;
g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
g_type_init ();
-
+
test = g_object_new (G_TYPE_TEST, NULL);
g_signal_connect (test, "notify::dummy", G_CALLBACK (dummy_notify), NULL);
};
static GType g_test_get_type (void);
-static gboolean stopping;
+static volatile gboolean stopping;
/* Element signals and args */
enum
static gpointer
run_thread (GTest * test)
{
- gint i = 0;
+ gint i = 1;
while (!stopping) {
if (TESTNUM == 1)
g_test_do_signal2 (test);
if (TESTNUM == 3)
g_test_do_prop (test);
- if ((i++ % 100000) == 0) {
+ if ((i++ % 10000) == 0) {
g_print (".");
- g_usleep (1); /* context switch */
+ g_thread_yield(); /* force context switch */
}
}
gint i;
GTest *test1, *test2;
GArray *test_threads;
+ const gint n_threads = 1;
g_thread_init (NULL);
+ g_print ("START: %s\n", argv[0]);
+ g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
g_type_init ();
test1 = g_object_new (G_TYPE_TEST, NULL);
stopping = FALSE;
- for (i = 0; i < 20; i++) {
+ for (i = 0; i < n_threads; i++) {
GThread *thread;
thread = g_thread_create ((GThreadFunc) run_thread, test1, TRUE, NULL);
g_print ("\nstopping\n");
/* join all threads */
- for (i = 0; i < 40; i++) {
+ for (i = 0; i < 2 * n_threads; i++) {
GThread *thread;
thread = g_array_index (test_threads, GThread *, i);
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