gstreamer/gst/gstmessage.c
Andy Wingo f2cf753b17 gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer.
Original commit message from CVS:
2005-06-27  Andy Wingo  <wingo@pobox.com>

* gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any
remaining buffer.

* gst/gsttrace.c (gst_alloc_trace_list_sorted): New helper,
returns a sorted copy of the trace list.
(gst_alloc_trace_print_live): New API, only prints traces with
live objects. Sort the list.
(gst_alloc_trace_print_all): Sort the list.
(gst_alloc_trace_print): Align columns.

* gst/elements/gstttypefindelement.c:
* gst/elements/gsttee.c:
* gst/base/gstbasesrc.c:
* gst/base/gstbasesink.c:
* gst/base/gstbasetransform.c:
* gst/gstqueue.c: Adapt for pad activation changes.

* gst/gstpipeline.c (gst_pipeline_init): Unref after parenting
sched.
(gst_pipeline_dispose): Drop ref on sched.

* gst/gstpad.c (gst_pad_init): Set the default activate func.
(gst_pad_activate_default): Push mode by default.
(pre_activate_switch, post_activate_switch): New stubs, things to
do before and after switching activation modes on pads.
(gst_pad_set_active): Take a boolean and not a mode, dispatch to
the pad's activate function to choose which mode to activate.
Shortcut on deactivation and call the right function directly.
(gst_pad_activate_pull): New API, (de)activates a pad in pull
mode.
(gst_pad_activate_push): New API, same for push mode.
(gst_pad_set_activate_function)
(gst_pad_set_activatepull_function)
(gst_pad_set_activatepush_function): Setters for new API.

* gst/gstminiobject.c (gst_mini_object_new, gst_mini_object_free):
Trace all miniobjects.
(gst_mini_object_make_writable): Unref the arg if we copy, like
gst_caps_make_writable.

* gst/gstmessage.c (_gst_message_initialize): No trace init.

* gst/gstghostpad.c (gst_proxy_pad_do_activate)
(gst_proxy_pad_do_activatepull, gst_proxy_pad_do_activatepush):
Adapt for new pad API.

* gst/gstevent.c (_gst_event_initialize): Don't initialize trace.

* gst/gstelement.h:
* gst/gstelement.c (gst_element_iterate_src_pads)
(gst_element_iterate_sink_pads): New API functions.

* gst/gstelement.c (iterator_fold_with_resync): New utility,
should fold into gstiterator.c in some form.
(gst_element_pads_activate): Simplified via use of fold and
delegation of decisions to gstpad->activate.

* gst/gstbus.c (gst_bus_source_finalize): Set the bus to NULL,
help in debugging.

* gst/gstbuffer.c (_gst_buffer_initialize): Ref the buffer type
class once in init, like gstmessage. Didn't run into this issue
but it seems correct. Don't initialize a trace, gstminiobject does
that.

* check/pipelines/simple_launch_lines.c (test_stop_from_app): New
test, runs fakesrc ! fakesink, stopping on ::handoff via a message
to the bus.
(assert_live_count): New util function, uses alloc traces to check
cleanup.

* check/gst/gstghostpad.c (test_ghost_pads): More refcount checks.
To be modified when unlink drops the internal pad.
2005-06-27 18:35:05 +00:00

456 lines
12 KiB
C

/* GStreamer
* Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
*
* gstmessage.c: GstMessage subsystem
*
* 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 <string.h> /* memcpy */
#include "gst_private.h"
#include "gstinfo.h"
#include "gstmemchunk.h"
#include "gstmessage.h"
#include "gsttag.h"
#include "gstutils.h"
static void gst_message_init (GTypeInstance * instance, gpointer g_class);
static void gst_message_class_init (gpointer g_class, gpointer class_data);
static void gst_message_finalize (GstMessage * message);
static GstMessage *_gst_message_copy (GstMessage * message);
void
_gst_message_initialize (void)
{
gpointer ptr;
GST_CAT_INFO (GST_CAT_GST_INIT, "init messages");
gst_message_get_type ();
/* the GstMiniObject types need to be class_ref'd once before it can be
* done from multiple threads;
* see http://bugzilla.gnome.org/show_bug.cgi?id=304551 */
ptr = g_type_class_ref (GST_TYPE_MESSAGE);
g_type_class_unref (ptr);
}
GType
gst_message_get_type (void)
{
static GType _gst_message_type;
if (G_UNLIKELY (_gst_message_type == 0)) {
static const GTypeInfo message_info = {
sizeof (GstMessageClass),
NULL,
NULL,
gst_message_class_init,
NULL,
NULL,
sizeof (GstMessage),
0,
gst_message_init,
NULL
};
_gst_message_type = g_type_register_static (GST_TYPE_MINI_OBJECT,
"GstMessage", &message_info, 0);
}
return _gst_message_type;
}
static void
gst_message_class_init (gpointer g_class, gpointer class_data)
{
GstMessageClass *message_class = GST_MESSAGE_CLASS (g_class);
message_class->mini_object_class.copy =
(GstMiniObjectCopyFunction) _gst_message_copy;
message_class->mini_object_class.finalize =
(GstMiniObjectFinalizeFunction) gst_message_finalize;
}
static void
gst_message_init (GTypeInstance * instance, gpointer g_class)
{
GstMessage *message = GST_MESSAGE (instance);
message->timestamp = GST_CLOCK_TIME_NONE;
}
static void
gst_message_finalize (GstMessage * message)
{
g_return_if_fail (message != NULL);
GST_CAT_INFO (GST_CAT_MESSAGE, "finalize message %p", message);
if (GST_MESSAGE_SRC (message)) {
gst_object_unref (GST_MESSAGE_SRC (message));
}
if (message->lock) {
GST_MESSAGE_LOCK (message);
GST_MESSAGE_SIGNAL (message);
GST_MESSAGE_UNLOCK (message);
}
if (message->structure) {
gst_structure_set_parent_refcount (message->structure, NULL);
gst_structure_free (message->structure);
}
}
static GstMessage *
_gst_message_copy (GstMessage * message)
{
GstMessage *copy;
GST_CAT_INFO (GST_CAT_MESSAGE, "copy message %p", message);
copy = (GstMessage *) gst_mini_object_new (GST_TYPE_MESSAGE);
/* FIXME */
//memcpy (copy, message, sizeof (GstMessage));
copy->lock = message->lock;
copy->cond = message->cond;
copy->type = message->type;
copy->timestamp = message->timestamp;
if (GST_MESSAGE_SRC (message)) {
GST_MESSAGE_SRC (copy) = gst_object_ref (GST_MESSAGE_SRC (message));
}
if (message->structure) {
copy->structure = gst_structure_copy (message->structure);
gst_structure_set_parent_refcount (copy->structure,
&message->mini_object.refcount);
}
return copy;
}
/**
* gst_message_new:
* @type: The type of the new message
*
* Allocate a new message of the given type.
*
* Returns: A new message.
*
* MT safe.
*/
static GstMessage *
gst_message_new (GstMessageType type, GstObject * src)
{
GstMessage *message;
message = (GstMessage *) gst_mini_object_new (GST_TYPE_MESSAGE);
GST_CAT_INFO (GST_CAT_MESSAGE, "creating new message %p %d", message, type);
message->type = type;
if (src) {
message->src = gst_object_ref (src);
} else {
message->src = NULL;
}
message->structure = NULL;
return message;
}
/**
* gst_message_new_eos:
*
* Create a new eos message.
*
* Returns: The new eos message.
*
* MT safe.
*/
GstMessage *
gst_message_new_eos (GstObject * src)
{
GstMessage *message;
message = gst_message_new (GST_MESSAGE_EOS, src);
return message;
}
/**
* gst_message_new_error:
* @src: The object originating the message.
* @error: The GError for this message.
* @debug: A debugging string for something or other.
*
* Create a new error message. The message will take ownership of @error and
* @debug.
*
* Returns: The new error message.
*
* MT safe.
*/
GstMessage *
gst_message_new_error (GstObject * src, GError * error, gchar * debug)
{
GstMessage *message;
GstStructure *s;
message = gst_message_new (GST_MESSAGE_ERROR, src);
s = gst_structure_new ("GstMessageError", "gerror", G_TYPE_POINTER, error,
"debug", G_TYPE_STRING, debug, NULL);
gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
message->structure = s;
return message;
}
/**
* gst_message_new_warning:
* @src: The object originating the message.
* @error: The GError for this message.
* @debug: A debugging string for something or other.
*
* Create a new warning message. The message will take ownership of @error and
* @debug.
*
* Returns: The new warning message.
*
* MT safe.
*/
GstMessage *
gst_message_new_warning (GstObject * src, GError * error, gchar * debug)
{
GstMessage *message;
GstStructure *s;
message = gst_message_new (GST_MESSAGE_WARNING, src);
s = gst_structure_new ("GstMessageWarning", "gerror", G_TYPE_POINTER, error,
"debug", G_TYPE_STRING, debug, NULL);
gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
message->structure = s;
return message;
}
/**
* gst_message_new_tag:
* @src: The object originating the message.
* @tag_list: The tag list for the message.
*
* Create a new tag message. The message will take ownership of the tag list.
*
* Returns: The new tag message.
*
* MT safe.
*/
GstMessage *
gst_message_new_tag (GstObject * src, GstTagList * tag_list)
{
GstMessage *message;
g_return_val_if_fail (GST_IS_STRUCTURE (tag_list), NULL);
message = gst_message_new (GST_MESSAGE_TAG, src);
gst_structure_set_parent_refcount (tag_list, &message->mini_object.refcount);
message->structure = tag_list;
return message;
}
/**
* gst_message_new_state_change:
* @src: The object originating the message.
* @old: The previous state.
* @new: The new (current) state.
*
* Create a state change message.
*
* Returns: The new state change message.
*
* MT safe.
*/
GstMessage *
gst_message_new_state_changed (GstObject * src, GstElementState old,
GstElementState new)
{
GstMessage *message;
GstStructure *s;
message = gst_message_new (GST_MESSAGE_STATE_CHANGED, src);
s = gst_structure_new ("GstMessageError", "old-state", G_TYPE_INT, (gint) old,
"new-state", G_TYPE_INT, (gint) new, NULL);
gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
message->structure = s;
return message;
}
/**
* gst_message_new_application:
* @structure: The structure for the message. The message will take ownership of
* the structure.
*
* Create a new application-specific message. These messages can be used by
* application-specific plugins to pass data to the app.
*
* Returns: The new message.
*
* MT safe.
*/
GstMessage *
gst_message_new_application (GstStructure * structure)
{
GstMessage *message;
g_return_val_if_fail (GST_IS_STRUCTURE (structure), NULL);
message = gst_message_new (GST_MESSAGE_APPLICATION, NULL);
gst_structure_set_parent_refcount (structure, &message->mini_object.refcount);
message->structure = structure;
return message;
}
/**
* gst_message_get_structure:
* @message: The #GstMessage.
*
* Access the structure of the message.
*
* Returns: The structure of the message. The structure is still
* owned by the message, which means that you should not free it and
* that the pointer becomes invalid when you free the message.
*
* MT safe.
*/
const GstStructure *
gst_message_get_structure (GstMessage * message)
{
g_return_val_if_fail (GST_IS_MESSAGE (message), NULL);
return message->structure;
}
/**
* gst_message_parse_tag:
* @message: A valid #GstMessage of type GST_MESSAGE_TAG.
*
* Extracts the tag list from the GstMessage. The tag list returned in the
* output argument is a copy; the caller must free it when done.
*
* MT safe.
*/
void
gst_message_parse_tag (GstMessage * message, GstTagList ** tag_list)
{
g_return_if_fail (GST_IS_MESSAGE (message));
g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_TAG);
*tag_list = (GstTagList *) gst_structure_copy (message->structure);
}
/**
* gst_message_parse_tag:
* @message: A valid #GstMessage of type GST_MESSAGE_STATE_CHANGED.
*
* Extracts the old and new states from the GstMessage.
*
* MT safe.
*/
void
gst_message_parse_state_changed (GstMessage * message, GstElementState * old,
GstElementState * new)
{
g_return_if_fail (GST_IS_MESSAGE (message));
g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_STATE_CHANGED);
if (!gst_structure_get_int (message->structure, "old-state", (gint *) old))
g_assert_not_reached ();
if (!gst_structure_get_int (message->structure, "new-state", (gint *) new))
g_assert_not_reached ();
}
/**
* gst_message_parse_error:
* @message: A valid #GstMessage of type GST_MESSAGE_ERROR.
*
* Extracts the GError and debug string from the GstMessage. The values returned
* in the output arguments are copies; the caller must free them when done.
*
* MT safe.
*/
void
gst_message_parse_error (GstMessage * message, GError ** gerror, gchar ** debug)
{
const GValue *error_gvalue;
GError *error_val;
g_return_if_fail (GST_IS_MESSAGE (message));
g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ERROR);
error_gvalue = gst_structure_get_value (message->structure, "gerror");
g_return_if_fail (error_gvalue != NULL);
g_return_if_fail (G_VALUE_TYPE (error_gvalue) == G_TYPE_POINTER);
error_val = g_value_get_pointer (error_gvalue);
if (error_val)
*gerror = g_error_copy (error_val);
else
*gerror = NULL;
*debug = g_strdup (gst_structure_get_string (message->structure, "debug"));
}
/**
* gst_message_parse_warning:
* @message: A valid #GstMessage of type GST_MESSAGE_WARNING.
*
* Extracts the GError and debug string from the GstMessage. The values returned
* in the output arguments are copies; the caller must free them when done.
*
* MT safe.
*/
void
gst_message_parse_warning (GstMessage * message, GError ** gerror,
gchar ** debug)
{
const GValue *error_gvalue;
GError *error_val;
g_return_if_fail (GST_IS_MESSAGE (message));
g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_WARNING);
error_gvalue = gst_structure_get_value (message->structure, "gerror");
g_return_if_fail (error_gvalue != NULL);
g_return_if_fail (G_VALUE_TYPE (error_gvalue) == G_TYPE_POINTER);
error_val = g_value_get_pointer (error_gvalue);
if (error_val)
*gerror = g_error_copy (error_val);
else
*gerror = NULL;
*debug = g_strdup (gst_structure_get_string (message->structure, "debug"));
}