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gst/gstbin.c: make state changes work correctly and reentrant (so removing elements from bins during state changes of...

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Original commit message from CVS:
* gst/gstbin.c: (gst_bin_get_type), (gst_bin_class_init),
(gst_bin_fix_state), (gst_bin_add_func), (gst_bin_remove_func),
(gst_bin_child_state_change_func), (set_kid_state_func),
(gst_bin_set_state), (gst_bin_change_state_norecurse):
make state changes work correctly and reentrant (so removing
elements from bins during state changes of bins doesn't cause
segfaults or even wrong states)
add debugging category and debugging output to print children states
* gst/gstbin.c: (gst_bin_dispose):
add some assertion checks
* gst/gstbin.h:
* gst/gstbin.c: (gst_bin_sync_children_state):
deprecate this function - it just does gst_bin_set_state (bin,
GST_STATE (bin))
* testsuite/threads/queue.c: (main):
don't use gst_bin_sync_children_state anymore
* testsuite/states/Makefile.am:
* testsuite/states/bin.c:
test that the state changes of bins work as expected
* gst/gstthread.c: (gst_thread_class_init), (gst_thread_set_state):
some adjustments to change states correctly, too
* gst/gstthread.c: (gst_thread_change_state):
don't enable/disable "threadsafe" properties, they're unused and
cause random segfaults
* testsuite/threads/Makefile.am:
the queue check randomly passes now, ignore it
This commit is contained in:
Benjamin Otte 2004-07-21 21:28:58 +00:00
parent d8c591b902
commit 28bf20507e
12 changed files with 446 additions and 152 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
ChangeLog
View file

@ -1,3 +1,32 @@
2004-07-21 Benjamin Otte <otte@gnome.org>
* gst/gstbin.c: (gst_bin_get_type), (gst_bin_class_init),
(gst_bin_fix_state), (gst_bin_add_func), (gst_bin_remove_func),
(gst_bin_child_state_change_func), (set_kid_state_func),
(gst_bin_set_state), (gst_bin_change_state_norecurse):
make state changes work correctly and reentrant (so removing
elements from bins during state changes of bins doesn't cause
segfaults or even wrong states)
add debugging category and debugging output to print children states
* gst/gstbin.c: (gst_bin_dispose):
add some assertion checks
* gst/gstbin.h:
* gst/gstbin.c: (gst_bin_sync_children_state):
deprecate this function - it just does gst_bin_set_state (bin,
GST_STATE (bin))
* testsuite/threads/queue.c: (main):
don't use gst_bin_sync_children_state anymore
* testsuite/states/Makefile.am:
* testsuite/states/bin.c:
test that the state changes of bins work as expected
* gst/gstthread.c: (gst_thread_class_init), (gst_thread_set_state):
some adjustments to change states correctly, too
* gst/gstthread.c: (gst_thread_change_state):
don't enable/disable "threadsafe" properties, they're unused and
cause random segfaults
* testsuite/threads/Makefile.am:
the queue check randomly passes now, ignore it
2004-07-21 Benjamin Otte <otte@gnome.org>
* gst/gstpad.c:

209
gst/gstbin.c
View file

@ -34,6 +34,14 @@
#include "gstindex.h"
#include "gstutils.h"
GST_DEBUG_CATEGORY_STATIC (bin_debug);
#define GST_CAT_DEFAULT bin_debug
#define GST_LOG_BIN_CONTENTS(bin, text) GST_LOG_OBJECT ((bin), \
text ": %d elements: %u PLAYING, %u PAUSED, %u READY, %u NULL, own state: %s", \
(bin)->numchildren, (guint) (bin)->child_states[3], \
(guint) (bin)->child_states[2], (bin)->child_states[1], \
(bin)->child_states[0], gst_element_state_get_name (GST_STATE (bin)))
static GstElementDetails gst_bin_details = GST_ELEMENT_DETAILS ("Generic bin",
"Generic/Bin",
"Simple container object",
@ -46,7 +54,6 @@ static gboolean _gst_boolean_did_something_accumulator (GSignalInvocationHint *
static void gst_bin_dispose (GObject * object);
static GstElementStateReturn gst_bin_change_state (GstElement * element);
static GstElementStateReturn gst_bin_change_state_norecurse (GstBin * bin);
#ifndef GST_DISABLE_INDEX
@ -116,6 +123,8 @@ gst_bin_get_type (void)
_gst_bin_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstBin", &bin_info, 0);
GST_DEBUG_CATEGORY_INIT (bin_debug, "bin", GST_DEBUG_BOLD,
"debugging info for the 'bin' container element");
}
return _gst_bin_type;
}
@ -163,7 +172,6 @@ gst_bin_class_init (GstBinClass * klass)
GST_DEBUG_FUNCPTR (gst_bin_restore_thyself);
#endif
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_bin_change_state);
gstelement_class->set_state = GST_DEBUG_FUNCPTR (gst_bin_set_state);
#ifndef GST_DISABLE_INDEX
gstelement_class->set_index = GST_DEBUG_FUNCPTR (gst_bin_set_index);
@ -441,6 +449,34 @@ gst_bin_add_many (GstBin * bin, GstElement * element_1, ...)
va_end (args);
}
/* after adding or removing elements, we need to fix the state of the bin
* in a reentrant way. This is done here */
static void
gst_bin_fix_state (GstBin * bin)
{
gint i;
GstElementState desired;
while (TRUE) {
/* find the highest child state */
for (i = GST_NUM_STATES - 1; i > 0; i--) {
if (bin->child_states[i] > 0)
break;
}
g_assert (i < GST_NUM_STATES && i >= 0);
desired = 1 << i;
if (desired == GST_STATE (bin)) {
break;
} else if (desired < GST_STATE (bin)) {
GST_STATE_PENDING (bin) = GST_STATE (bin) >> 1;
} else { /* if (desired > GST_STATE (bin)) */
GST_STATE_PENDING (bin) = GST_STATE (bin) << 1;
}
/* this part is reentrant */
gst_bin_change_state_norecurse (bin);
}
}
static void
gst_bin_add_func (GstBin * bin, GstElement * element)
{
@ -459,15 +495,14 @@ gst_bin_add_func (GstBin * bin, GstElement * element)
return;
}
if (GST_STATE (element) > GST_STATE (bin)) {
GST_CAT_DEBUG_OBJECT (GST_CAT_STATES, bin,
"setting state to receive element \"%s\"", GST_OBJECT_NAME (element));
gst_element_set_state ((GstElement *) bin, GST_STATE (element));
}
/* ref to guard unrefs in callbacks */
gst_object_ref (GST_OBJECT (bin));
gst_object_ref (GST_OBJECT (element));
/* set the element's parent and add the element to the bin's list of children */
gst_object_set_parent (GST_OBJECT (element), GST_OBJECT (bin));
GST_LOG_BIN_CONTENTS (bin, "before adding element");
bin->children = g_list_append (bin->children, element);
bin->numchildren++;
@ -485,10 +520,16 @@ gst_bin_add_func (GstBin * bin, GstElement * element)
gst_bin_set_element_sched (element, sched);
}
/* check if we need to bump state because a high state element was added */
gst_bin_fix_state (bin);
GST_CAT_DEBUG_OBJECT (GST_CAT_PARENTAGE, bin, "added element \"%s\"",
GST_OBJECT_NAME (element));
GST_LOG_BIN_CONTENTS (bin, "after adding element");
g_signal_emit (G_OBJECT (bin), gst_bin_signals[ELEMENT_ADDED], 0, element);
/* we reffed above */
gst_object_unref (GST_OBJECT (element));
gst_object_unref (GST_OBJECT (bin));
}
/**
@ -537,9 +578,13 @@ gst_bin_remove_func (GstBin * bin, GstElement * element)
return;
}
/* ref to guard unrefs in callbacks */
gst_object_ref (GST_OBJECT (bin));
/* remove this element from the list of managed elements */
gst_bin_unset_element_sched (element, GST_ELEMENT_SCHED (bin));
GST_LOG_BIN_CONTENTS (bin, "before removing element");
/* now remove the element from the list of elements */
bin->children = g_list_remove (bin->children, element);
bin->numchildren--;
@ -550,30 +595,22 @@ gst_bin_remove_func (GstBin * bin, GstElement * element)
state_idx++;
bin->child_states[state_idx]--;
GST_CAT_INFO_OBJECT (GST_CAT_PARENTAGE, bin, "removed child \"%s\"",
GST_OBJECT_NAME (element));
GST_CAT_INFO_OBJECT (GST_CAT_PARENTAGE, bin,
"removed child \"%s\", %d children left", GST_OBJECT_NAME (element),
bin->numchildren);
/* ref as we're going to emit a signal */
gst_object_ref (GST_OBJECT (element));
gst_object_unparent (GST_OBJECT (element));
/* if we're down to zero children, force state to NULL */
while (bin->numchildren == 0 && GST_ELEMENT_SCHED (bin) != NULL &&
GST_STATE (bin) > GST_STATE_NULL) {
GstElementState next = GST_STATE (bin) >> 1;
GST_STATE_PENDING (bin) = next;
gst_bin_change_state_norecurse (bin);
if (!GST_STATE (bin) == next) {
g_warning ("bin %s failed state change to %d", GST_ELEMENT_NAME (bin),
next);
break;
}
}
/* check the state */
gst_bin_fix_state (bin);
GST_LOG_BIN_CONTENTS (bin, "after removing element");
g_signal_emit (G_OBJECT (bin), gst_bin_signals[ELEMENT_REMOVED], 0, element);
/* element is really out of our control now */
gst_object_unref (GST_OBJECT (element));
gst_object_unref (GST_OBJECT (bin));
}
/**
@ -684,7 +721,7 @@ gst_bin_child_state_change_func (GstBin * bin, GstElementState oldstate,
while (new >>= 1)
new_idx++;
GST_LOCK (bin);
GST_LOG_BIN_CONTENTS (bin, "before child state change");
bin->child_states[old_idx]--;
bin->child_states[new_idx]++;
@ -697,18 +734,17 @@ gst_bin_child_state_change_func (GstBin * bin, GstElementState oldstate,
"highest child state is %s, changing bin state accordingly",
gst_element_state_get_name (state));
GST_STATE_PENDING (bin) = state;
GST_UNLOCK (bin);
gst_bin_change_state_norecurse (bin);
if (state != GST_STATE (bin)) {
g_warning ("%s: state change in callback %d %d",
GST_ELEMENT_NAME (bin), state, GST_STATE (bin));
GST_INFO_OBJECT (bin, "state change in callback %d %d",
state, GST_STATE (bin));
}
return;
}
break;
}
}
GST_UNLOCK (bin);
GST_LOG_BIN_CONTENTS (bin, "after child state change");
}
typedef gboolean (*GstBinForeachFunc) (GstBin * bin, GstElement * element,
@ -761,6 +797,7 @@ typedef struct
GstElementStateReturn result;
}
SetKidStateData;
static int
set_kid_state_func (GstBin * bin, GstElement * child, gpointer user_data)
{
@ -792,7 +829,6 @@ set_kid_state_func (GstBin * bin, GstElement * child, gpointer user_data)
GST_CAT_INFO_OBJECT (GST_CAT_STATES, bin,
"child '%s' is changing state asynchronously",
GST_ELEMENT_NAME (child));
data->result = GST_STATE_ASYNC;
return TRUE;
case GST_STATE_SUCCESS:
@ -800,6 +836,7 @@ set_kid_state_func (GstBin * bin, GstElement * child, gpointer user_data)
"child '%s' changed state to %d(%s) successfully",
GST_ELEMENT_NAME (child), data->pending,
gst_element_state_get_name (data->pending));
data->result = GST_STATE_SUCCESS;
return TRUE;
default:
@ -808,87 +845,31 @@ set_kid_state_func (GstBin * bin, GstElement * child, gpointer user_data)
}
}
static GstElementStateReturn
gst_bin_change_state (GstElement * element)
{
GstBin *bin;
GstElementStateReturn ret;
GstElementState old_state, pending;
SetKidStateData data;
g_return_val_if_fail (GST_IS_BIN (element), GST_STATE_FAILURE);
bin = GST_BIN (element);
old_state = GST_STATE (element);
pending = GST_STATE_PENDING (element);
GST_CAT_DEBUG_OBJECT (GST_CAT_STATES, element,
"changing state of children from %s to %s",
gst_element_state_get_name (old_state),
gst_element_state_get_name (pending));
if (pending == GST_STATE_VOID_PENDING)
return GST_STATE_SUCCESS;
data.pending = pending;
data.result = GST_STATE_SUCCESS;
if (!gst_bin_foreach (bin, set_kid_state_func, &data)) {
GST_STATE_PENDING (element) = old_state;
return GST_STATE_FAILURE;
}
GST_CAT_DEBUG_OBJECT (GST_CAT_STATES, element,
"done changing bin's state from %s to %s, now in %s",
gst_element_state_get_name (old_state),
gst_element_state_get_name (pending),
gst_element_state_get_name (GST_STATE (element)));
if (data.result == GST_STATE_ASYNC)
ret = GST_STATE_ASYNC;
else {
/* FIXME: this should have been done by the children already, no? */
if (parent_class->change_state) {
ret = parent_class->change_state (element);
} else
ret = GST_STATE_SUCCESS;
}
return ret;
}
GstElementStateReturn
gst_bin_set_state (GstElement * element, GstElementState state)
{
GstBin *bin = GST_BIN (element);
SetKidStateData data;
if (GST_STATE (bin) == state) {
SetKidStateData data;
data.pending = state;
data.result = GST_STATE_SUCCESS;
if (!gst_bin_foreach (bin, set_kid_state_func, &data)) {
return GST_STATE_FAILURE;
} else {
return data.result;
}
data.pending = state;
data.result = GST_STATE_ASYNC;
if (!gst_bin_foreach (bin, set_kid_state_func, &data)) {
return GST_STATE_FAILURE;
} else {
return GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, set_state, (element,
state), GST_STATE_FAILURE);
return data.result;
}
}
static GstElementStateReturn
gst_bin_change_state_norecurse (GstBin * bin)
{
GstElementStateReturn ret;
GstElementClass *klass;
if (parent_class->change_state) {
GST_CAT_LOG_OBJECT (GST_CAT_STATES, bin, "setting bin's own state");
ret = parent_class->change_state (GST_ELEMENT (bin));
klass = GST_ELEMENT_GET_CLASS (bin);
g_return_val_if_fail (klass->change_state, GST_STATE_FAILURE);
return ret;
} else
return GST_STATE_FAILURE;
GST_CAT_LOG_OBJECT (GST_CAT_STATES, bin, "setting bin's own state");
return klass->change_state (GST_ELEMENT (bin));
}
static void
@ -905,6 +886,10 @@ gst_bin_dispose (GObject * object)
}
g_assert (bin->children == NULL);
g_assert (bin->numchildren == 0);
g_assert (bin->child_states[3] == 0); /* playing */
g_assert (bin->child_states[2] == 0); /* paused */
g_assert (bin->child_states[1] == 0); /* ready */
g_assert (bin->child_states[0] == 0); /* null */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
@ -1087,40 +1072,10 @@ gst_bin_get_all_by_interface (GstBin * bin, GType interface)
GstElementStateReturn
gst_bin_sync_children_state (GstBin * bin)
{
GList *children;
GstElement *element;
GstElementState state;
GstElementStateReturn ret = GST_STATE_SUCCESS;
g_return_val_if_fail (GST_IS_BIN (bin), GST_STATE_FAILURE);
state = GST_STATE (bin);
children = bin->children;
GST_CAT_INFO (GST_CAT_STATES,
"syncing state of children with bin \"%s\"'s state %s",
GST_ELEMENT_NAME (bin), gst_element_state_get_name (state));
while (children) {
element = GST_ELEMENT (children->data);
children = children->next;
if (GST_STATE (element) != state) {
switch (gst_element_set_state (element, state)) {
case GST_STATE_SUCCESS:
break;
case GST_STATE_ASYNC:
if (ret == GST_STATE_SUCCESS)
ret = GST_STATE_ASYNC;
break;
case GST_STATE_FAILURE:
ret = GST_STATE_FAILURE;
default:
/* make sure gst_element_set_state never returns this */
g_assert_not_reached ();
}
}
}
return ret;
return gst_element_set_state (GST_ELEMENT (bin),
gst_element_get_state (GST_ELEMENT (bin)));
}
#ifndef GST_DISABLE_LOADSAVE

3
gst/gstbin.h
View file

@ -63,6 +63,7 @@ struct _GstBin {
gint numchildren;
GList *children;
/* FIXME 0.9: important!! make this guint instead of GstElementState */
GstElementState child_states[GST_NUM_STATES];
gpointer _gst_reserved[GST_PADDING];
@ -110,7 +111,9 @@ void gst_bin_use_clock (GstBin *bin, GstClock *clock);
GstClock* gst_bin_get_clock (GstBin *bin);
void gst_bin_auto_clock (GstBin *bin);
#ifndef GST_DISABLE_DEPRECATED
GstElementStateReturn gst_bin_sync_children_state (GstBin *bin);
#endif
/* internal */
/* one of our childs signaled a state change */

41
gst/gstthread.c
View file

@ -27,6 +27,7 @@
#include "gstmarshal.h"
#include "gstscheduler.h"
#include "gstinfo.h"
#include "gstutils.h"
#define GST_CAT_DEFAULT GST_CAT_THREAD
#define STACK_SIZE 0x200000
@ -71,6 +72,8 @@ static void gst_thread_set_property (GObject * object, guint prop_id,
static void gst_thread_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstElementStateReturn gst_thread_change_state (GstElement * element);
static GstElementStateReturn gst_thread_set_state (GstElement * element,
GstElementState state);
static void gst_thread_child_state_change (GstBin * bin,
GstElementState oldstate, GstElementState newstate, GstElement * element);
@ -181,6 +184,7 @@ gst_thread_class_init (gpointer g_class, gpointer class_data)
#endif
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_thread_change_state);
gstelement_class->set_state = GST_DEBUG_FUNCPTR (gst_thread_set_state);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_thread_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_thread_get_property);
@ -407,6 +411,26 @@ gst_thread_release (GstThread * thread)
}
}
static GstElementStateReturn
gst_thread_set_state (GstElement * element, GstElementState state)
{
GstElementStateReturn result;
GstThread *thread = GST_THREAD (element);
if (thread != gst_thread_get_current ()) {
gst_thread_catch (thread);
g_mutex_unlock (thread->lock);
}
result =
GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, set_state, (element,
state), GST_STATE_FAILURE);
if (thread != gst_thread_get_current ()) {
g_mutex_lock (thread->lock);
gst_thread_release (thread);
}
return result;
}
static GstElementStateReturn
gst_thread_change_state (GstElement * element)
{
@ -451,30 +475,13 @@ gst_thread_change_state (GstElement * element)
break;
case GST_STATE_PAUSED_TO_PLAYING:
{
/* FIXME: recurse into sub-bins */
GList *elements = (GList *) gst_bin_get_list (GST_BIN (thread));
while (elements) {
gst_element_enable_threadsafe_properties ((GstElement *) elements->
data);
elements = g_list_next (elements);
}
/* reset self to spinning */
if (thread == gst_thread_get_current ())
GST_FLAG_SET (thread, GST_THREAD_STATE_SPINNING);
break;
}
case GST_STATE_PLAYING_TO_PAUSED:
{
GList *elements = (GList *) gst_bin_get_list (GST_BIN (thread));
while (elements) {
gst_element_disable_threadsafe_properties ((GstElement *) elements->
data);
elements = g_list_next (elements);
}
break;
}
case GST_STATE_PAUSED_TO_READY:
break;
case GST_STATE_READY_TO_NULL:

2
tests/old/testsuite/states/Makefile.am
View file

@ -1,6 +1,6 @@
include ../Rules
tests_pass = locked parent
tests_pass = locked parent bin
tests_fail =
tests_ignore =

150
tests/old/testsuite/states/bin.c Normal file
View file

@ -0,0 +1,150 @@
/* GStreamer
* Copyright (C) <2004> Benjamin Otte <otte@gnome.org>
*
* bin.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/gst.h>
#define RETURN_NAME(x) ((x) == GST_STATE_SUCCESS ? "GST_STATE_SUCCESS" : \
(x) == GST_STATE_ASYNC ? "GST_STATE_ASYNC" : "GST_STATE_FAILURE")
static void
assert_state (GstElement * element, GstElementState state)
{
if (gst_element_get_state (element) != state) {
g_printerr ("%s: state is %s instead of %s",
GST_OBJECT_NAME (element),
gst_element_state_get_name (GST_STATE (element)),
gst_element_state_get_name (state));
g_assert_not_reached ();
}
}
static void
assert_state_change (GstElement * element, GstElementState new_state,
GstElementStateReturn result, GstElementState result_state)
{
GstElementStateReturn ret = gst_element_set_state (element, new_state);
if (ret != result) {
g_printerr ("%s: change state to %s returned %s instead of %s",
GST_OBJECT_NAME (element), gst_element_state_get_name (new_state),
RETURN_NAME (ret), RETURN_NAME (result));
g_assert_not_reached ();
}
assert_state (element, result_state);
}
static void
empty_bin (gchar * bin_name)
{
/* Test the behaviour of empty bins. Since a bin's state is always the state
* of its highest child, nothing should change in here
* Return values when no error occured but the state didn't change should be
* GST_STATE_ASYNC */
GstElement *bin = gst_element_factory_make (bin_name, NULL);
/* obvious */
assert_state (bin, GST_STATE_NULL);
/* see above */
assert_state_change (bin, GST_STATE_READY, GST_STATE_ASYNC, GST_STATE_NULL);
assert_state_change (bin, GST_STATE_PAUSED, GST_STATE_ASYNC, GST_STATE_NULL);
assert_state_change (bin, GST_STATE_PLAYING, GST_STATE_ASYNC, GST_STATE_NULL);
}
static void
test_adding_one_element (GstElement * bin)
{
/* Tests behaviour of adding/removing elements to/from bins. It makes sure the
* state of the bin is always the highest of all contained children. */
GstElementState test_states[] = { GST_STATE_READY, GST_STATE_PAUSED,
GST_STATE_PLAYING, GST_STATE_PAUSED, GST_STATE_READY, GST_STATE_NULL
};
GstElement *test = gst_element_factory_make ("identity", NULL);
GstElementState bin_state = gst_element_get_state (bin);
gint i;
g_assert (test);
gst_object_ref (GST_OBJECT (test));
assert_state (test, GST_STATE_NULL);
gst_bin_add (GST_BIN (bin), test);
assert_state (bin, MAX (bin_state, GST_STATE_NULL));
for (i = 0; i < G_N_ELEMENTS (test_states); i++) {
GstElementState test_state = test_states[i];
assert_state_change (test, test_state, GST_STATE_SUCCESS, test_state);
assert_state (test, test_state);
assert_state (bin, MAX (bin_state, test_state));
gst_bin_remove (GST_BIN (bin), test);
assert_state (bin, bin_state);
gst_bin_add (GST_BIN (bin), test);
assert_state (test, test_state);
assert_state (bin, MAX (bin_state, test_state));
}
gst_bin_remove (GST_BIN (bin), test);
gst_object_unref (GST_OBJECT (test));
assert_state (bin, bin_state);
}
static void
test_element_in_bin (gchar * bin_name)
{
gint i;
GstElementState test_states[] = { GST_STATE_NULL, GST_STATE_READY,
GST_STATE_PAUSED, GST_STATE_PLAYING
};
GstElement *id, *bin = gst_element_factory_make (bin_name, NULL);
g_assert (bin);
/* test correct behaviour in empty bins */
test_adding_one_element (bin);
id = gst_element_factory_make ("identity", NULL);
g_assert (id);
assert_state (id, GST_STATE_NULL);
gst_bin_add (GST_BIN (bin), id);
/* test correct behaviour in bins which contain elements in various states */
for (i = 0; i < G_N_ELEMENTS (test_states); i++) {
GstElementState test_state = test_states[i];
assert_state_change (bin, test_state, GST_STATE_SUCCESS, test_state);
assert_state (id, test_state);
test_adding_one_element (bin);
}
gst_object_unref (GST_OBJECT (bin));
}
gint
main (gint argc, gchar * argv[])
{
gst_init (&argc, &argv);
/* test behaviour of empty bins */
empty_bin ("bin");
empty_bin ("thread");
empty_bin ("pipeline");
/* test behaviour of adding/removing elements to/from all core bin types */
test_element_in_bin ("bin");
test_element_in_bin ("thread");
test_element_in_bin ("pipeline");
return 0;
}

4
tests/old/testsuite/threads/Makefile.am
View file

@ -1,9 +1,9 @@
include ../Rules
tests_pass = thread1 thread2 thread3 thread4 threadf
tests_fail = thread5 threadd queue threadg
tests_fail = thread5 threadd threadg
tests_ignore = threade threadb threadc
tests_ignore = queue threade threadb threadc
queue_SOURCES = queue.c
queue_CFLAGS = $(AM_CFLAGS)

2
tests/old/testsuite/threads/queue.c
View file

@ -76,7 +76,7 @@ main (gint argc, gchar * argv[])
gst_element_set_state (thread, GST_STATE_PLAYING);
g_print ("SLEEPING 1 sec\n");
sleep (1);
gst_bin_sync_children_state (GST_BIN (pipeline));
gst_element_set_state (pipeline, gst_element_get_state (pipeline));
g_print ("SLEEPING 2 sec\n");
sleep (2);

2
testsuite/states/Makefile.am
View file

@ -1,6 +1,6 @@
include ../Rules
tests_pass = locked parent
tests_pass = locked parent bin
tests_fail =
tests_ignore =

150
testsuite/states/bin.c Normal file
View file

@ -0,0 +1,150 @@
/* GStreamer
* Copyright (C) <2004> Benjamin Otte <otte@gnome.org>
*
* bin.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/gst.h>
#define RETURN_NAME(x) ((x) == GST_STATE_SUCCESS ? "GST_STATE_SUCCESS" : \
(x) == GST_STATE_ASYNC ? "GST_STATE_ASYNC" : "GST_STATE_FAILURE")
static void
assert_state (GstElement * element, GstElementState state)
{
if (gst_element_get_state (element) != state) {
g_printerr ("%s: state is %s instead of %s",
GST_OBJECT_NAME (element),
gst_element_state_get_name (GST_STATE (element)),
gst_element_state_get_name (state));
g_assert_not_reached ();
}
}
static void
assert_state_change (GstElement * element, GstElementState new_state,
GstElementStateReturn result, GstElementState result_state)
{
GstElementStateReturn ret = gst_element_set_state (element, new_state);
if (ret != result) {
g_printerr ("%s: change state to %s returned %s instead of %s",
GST_OBJECT_NAME (element), gst_element_state_get_name (new_state),
RETURN_NAME (ret), RETURN_NAME (result));
g_assert_not_reached ();
}
assert_state (element, result_state);
}
static void
empty_bin (gchar * bin_name)
{
/* Test the behaviour of empty bins. Since a bin's state is always the state
* of its highest child, nothing should change in here
* Return values when no error occured but the state didn't change should be
* GST_STATE_ASYNC */
GstElement *bin = gst_element_factory_make (bin_name, NULL);
/* obvious */
assert_state (bin, GST_STATE_NULL);
/* see above */
assert_state_change (bin, GST_STATE_READY, GST_STATE_ASYNC, GST_STATE_NULL);
assert_state_change (bin, GST_STATE_PAUSED, GST_STATE_ASYNC, GST_STATE_NULL);
assert_state_change (bin, GST_STATE_PLAYING, GST_STATE_ASYNC, GST_STATE_NULL);
}
static void
test_adding_one_element (GstElement * bin)
{
/* Tests behaviour of adding/removing elements to/from bins. It makes sure the
* state of the bin is always the highest of all contained children. */
GstElementState test_states[] = { GST_STATE_READY, GST_STATE_PAUSED,
GST_STATE_PLAYING, GST_STATE_PAUSED, GST_STATE_READY, GST_STATE_NULL
};
GstElement *test = gst_element_factory_make ("identity", NULL);
GstElementState bin_state = gst_element_get_state (bin);
gint i;
g_assert (test);
gst_object_ref (GST_OBJECT (test));
assert_state (test, GST_STATE_NULL);
gst_bin_add (GST_BIN (bin), test);
assert_state (bin, MAX (bin_state, GST_STATE_NULL));
for (i = 0; i < G_N_ELEMENTS (test_states); i++) {
GstElementState test_state = test_states[i];
assert_state_change (test, test_state, GST_STATE_SUCCESS, test_state);
assert_state (test, test_state);
assert_state (bin, MAX (bin_state, test_state));
gst_bin_remove (GST_BIN (bin), test);
assert_state (bin, bin_state);
gst_bin_add (GST_BIN (bin), test);
assert_state (test, test_state);
assert_state (bin, MAX (bin_state, test_state));
}
gst_bin_remove (GST_BIN (bin), test);
gst_object_unref (GST_OBJECT (test));
assert_state (bin, bin_state);
}
static void
test_element_in_bin (gchar * bin_name)
{
gint i;
GstElementState test_states[] = { GST_STATE_NULL, GST_STATE_READY,
GST_STATE_PAUSED, GST_STATE_PLAYING
};
GstElement *id, *bin = gst_element_factory_make (bin_name, NULL);
g_assert (bin);
/* test correct behaviour in empty bins */
test_adding_one_element (bin);
id = gst_element_factory_make ("identity", NULL);
g_assert (id);
assert_state (id, GST_STATE_NULL);
gst_bin_add (GST_BIN (bin), id);
/* test correct behaviour in bins which contain elements in various states */
for (i = 0; i < G_N_ELEMENTS (test_states); i++) {
GstElementState test_state = test_states[i];
assert_state_change (bin, test_state, GST_STATE_SUCCESS, test_state);
assert_state (id, test_state);
test_adding_one_element (bin);
}
gst_object_unref (GST_OBJECT (bin));
}
gint
main (gint argc, gchar * argv[])
{
gst_init (&argc, &argv);
/* test behaviour of empty bins */
empty_bin ("bin");
empty_bin ("thread");
empty_bin ("pipeline");
/* test behaviour of adding/removing elements to/from all core bin types */
test_element_in_bin ("bin");
test_element_in_bin ("thread");
test_element_in_bin ("pipeline");
return 0;
}

4
testsuite/threads/Makefile.am
View file

@ -1,9 +1,9 @@
include ../Rules
tests_pass = thread1 thread2 thread3 thread4 threadf
tests_fail = thread5 threadd queue threadg
tests_fail = thread5 threadd threadg
tests_ignore = threade threadb threadc
tests_ignore = queue threade threadb threadc
queue_SOURCES = queue.c
queue_CFLAGS = $(AM_CFLAGS)

2
testsuite/threads/queue.c
View file

@ -76,7 +76,7 @@ main (gint argc, gchar * argv[])
gst_element_set_state (thread, GST_STATE_PLAYING);
g_print ("SLEEPING 1 sec\n");
sleep (1);
gst_bin_sync_children_state (GST_BIN (pipeline));
gst_element_set_state (pipeline, gst_element_get_state (pipeline));
g_print ("SLEEPING 2 sec\n");
sleep (2);