static void
gst_insert_bin_add (GstInsertBin * self, GstElement * element,
GstElement * sibling, GstInsertBinDirection direction,
GstInsertBinCallback callback, gpointer user_data)
{
gst_object_ref_sink (element);
if (!validate_element (self, element))
goto reject;
if (sibling) {
gboolean is_parent;
GST_OBJECT_LOCK (sibling);
is_parent = (GST_OBJECT_PARENT (sibling) == GST_OBJECT_CAST (self));
GST_OBJECT_UNLOCK (sibling);
if (!is_parent)
goto reject;
}
gst_insert_bin_add_operation (self, element, GST_INSERT_BIN_ACTION_ADD,
sibling, direction, callback, user_data);
return;
reject:
if (callback)
callback (self, element, FALSE, user_data);
gst_object_unref (element);
}
static svn_error_t *
start_element(int *elem, void *baton, int parent,
const char *nspace, const char *name, const char **atts)
{
propfind_ctx_t *pc = baton;
const svn_ra_neon__xml_elm_t *elm
= svn_ra_neon__lookup_xml_elem(propfind_elements, nspace, name);
*elem = elm ? validate_element(parent, elm->id) : SVN_RA_NEON__XML_DECLINE;
if (*elem < 1) /* not a valid element */
return SVN_NO_ERROR;
svn_stringbuf_setempty(pc->cdata);
*elem = elm ? elm->id : ELEM_unknown;
switch (*elem)
{
case ELEM_response:
if (pc->rsrc)
return svn_error_create(SVN_ERR_XML_MALFORMED, NULL, NULL);
/* Create a new resource. */
pc->rsrc = apr_pcalloc(pc->pool, sizeof(*(pc->rsrc)));
pc->rsrc->pool = pc->pool;
pc->rsrc->propset = apr_hash_make(pc->pool);
pc->status = 0;
break;
case ELEM_propstat:
pc->status = 0;
break;
case ELEM_href:
/* Remember this <href>'s parent so that when we close this tag,
we know to whom the URL assignment belongs. Could be the
resource itself, or one of the properties:
ELEM_baseline_coll, ELEM_checked_in, ELEM_vcc: */
pc->rsrc->href_parent = pc->last_open_id;
break;
case ELEM_collection:
pc->rsrc->is_collection = 1;
break;
case ELEM_unknown:
/* these are our user-visible properties, presumably. */
pc->encoding = ne_xml_get_attr(pc->parser, atts, SVN_DAV_PROP_NS_DAV,
"encoding");
if (pc->encoding)
pc->encoding = apr_pstrdup(pc->pool, pc->encoding);
break;
default:
/* nothing to do for these */
break;
}
/* Remember the last tag we opened. */
pc->last_open_id = *elem;
return SVN_NO_ERROR;
}
/* Implements svn_ra_neon__startelm_cb_t. */
static svn_error_t *
start_207_element(int *elem, void *baton, int parent,
const char *nspace, const char *name, const char **atts)
{
multistatus_baton_t *b = baton;
const svn_ra_neon__xml_elm_t *elm =
svn_ra_neon__lookup_xml_elem(multistatus_elements, nspace, name);
*elem = elm ? validate_element(parent, elm->id) : SVN_RA_NEON__XML_DECLINE;
if (parent == ELEM_prop)
{
svn_stringbuf_setempty(b->propname);
if (strcmp(nspace, SVN_DAV_PROP_NS_SVN) == 0)
svn_stringbuf_set(b->propname, SVN_PROP_PREFIX);
else if (strcmp(nspace, "DAV:") == 0)
svn_stringbuf_set(b->propname, "DAV:");
svn_stringbuf_appendcstr(b->propname, name);
}
if (*elem < 1) /* ! > 0 */
return SVN_NO_ERROR;
switch (*elem)
{
case ELEM_propstat:
b->in_propstat = TRUE;
b->propstat_has_error = FALSE;
break;
default:
break;
}
/* We're guaranteed to have ELM now: SVN_RA_NEON__XML_DECLINE < 1 */
if (elm->flags & SVN_RA_NEON__XML_CDATA)
{
svn_stringbuf_setempty(b->cdata);
b->want_cdata = b->cdata;
}
return SVN_NO_ERROR;
}
static svn_error_t *
start_element(int *elem, void *baton, int parent,
const char *nspace, const char *name, const char **atts)
{
options_ctx_t *oc = baton;
const svn_ra_neon__xml_elm_t *elm
= svn_ra_neon__lookup_xml_elem(options_elements, nspace, name);
*elem = elm ? validate_element(parent, elm->id) : SVN_RA_NEON__XML_DECLINE;
if (*elem < 1) /* Not a valid element */
return SVN_NO_ERROR;
if (elm->id == ELEM_href)
oc->want_cdata = oc->cdata;
else
oc->want_cdata = NULL;
return SVN_NO_ERROR;
}
static void
gst_insert_bin_do_change (GstInsertBin * self, GstPad * pad)
{
struct ChangeData *data;
GST_OBJECT_LOCK (self);
if (!is_right_direction_for_block (pad)) {
GST_WARNING_OBJECT (self, "Block pad does not have the expected direction");
goto next;
}
while ((data = g_queue_pop_head (&self->priv->change_queue)) != NULL) {
GstPad *peer = NULL;
GstPad *other_peer = NULL;
GST_OBJECT_UNLOCK (self);
if (data->action == GST_INSERT_BIN_ACTION_ADD &&
!validate_element (self, data->element))
goto error;
peer = gst_pad_get_peer (pad);
if (peer == NULL) {
GST_WARNING_OBJECT (self, "Blocked pad has no peer");
goto error;
}
if (data->action == GST_INSERT_BIN_ACTION_ADD) {
GstPad *srcpad = NULL, *sinkpad = NULL;
GstPad *peersrcpad, *peersinkpad;
/* First let's make sure we have the right pad */
if (data->sibling) {
GstElement *parent = NULL;
GstPad *siblingpad;
if ((gst_pad_get_direction (pad) == GST_PAD_SRC &&
data->direction == DIRECTION_BEFORE) ||
(gst_pad_get_direction (pad) == GST_PAD_SINK &&
data->direction == DIRECTION_AFTER))
siblingpad = peer;
else
siblingpad = pad;
parent = gst_pad_get_parent_element (siblingpad);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->sibling)
goto retry;
} else {
GstObject *parent;
GstPad *ghost;
GstPad *proxypad;
if (data->direction == DIRECTION_BEFORE) {
ghost = self->priv->srcpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = pad;
else
proxypad = peer;
} else {
ghost = self->priv->sinkpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = peer;
else
proxypad = pad;
}
if (!GST_IS_PROXY_PAD (proxypad))
goto retry;
parent = gst_pad_get_parent (proxypad);
if (!parent)
goto retry;
gst_object_unref (parent);
if (GST_PAD_CAST (parent) != ghost)
goto retry;
}
if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
peersrcpad = pad;
peersinkpad = peer;
} else {
peersrcpad = peer;
peersinkpad = pad;
}
if (GST_IS_PROXY_PAD (peersrcpad)) {
GstObject *parent = gst_pad_get_parent (peersrcpad);
if (GST_PAD_CAST (parent) == self->priv->sinkpad)
peersrcpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (GST_IS_PROXY_PAD (peersinkpad)) {
GstObject *parent = gst_pad_get_parent (peersinkpad);
if (GST_PAD_CAST (parent) == self->priv->srcpad)
peersinkpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (peersinkpad && peersrcpad) {
gst_pad_unlink (peersrcpad, peersinkpad);
} else {
if (!peersinkpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad), NULL);
if (!peersrcpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad), NULL);
}
srcpad = get_single_pad (data->element, GST_PAD_SRC);
sinkpad = get_single_pad (data->element, GST_PAD_SINK);
if (srcpad == NULL || sinkpad == NULL) {
GST_WARNING_OBJECT (self, "Can not get element src or sink pad");
goto error;
}
if (!gst_bin_add (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Can not add element to bin");
goto error;
}
if (peersrcpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (peersrcpad, sinkpad))) {
GST_WARNING_OBJECT (self, "Can not link sibling's %s:%s pad"
" to element's %s:%s pad", GST_DEBUG_PAD_NAME (peersrcpad),
GST_DEBUG_PAD_NAME (sinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad),
sinkpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (sinkpad),
GST_DEBUG_PAD_NAME (self->priv->sinkpad));
goto error;
}
}
if (peersinkpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (srcpad, peersinkpad))) {
GST_WARNING_OBJECT (self, "Can not link element's %s:%s pad"
" to sibling's %s:%s pad", GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (peersinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad),
srcpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (self->priv->srcpad));
goto error;
}
}
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
if (!gst_element_sync_state_with_parent (data->element)) {
GST_WARNING_OBJECT (self, "Can not sync element's state with parent");
goto error;
}
} else {
GstElement *parent = NULL;
GstPad *other_pad;
GstCaps *caps = NULL, *peercaps = NULL;
gboolean can_intersect;
gboolean success;
parent = gst_pad_get_parent_element (peer);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->element)
goto retry;
if (gst_pad_get_direction (peer) == GST_PAD_SRC)
other_pad = get_single_pad (data->element, GST_PAD_SINK);
else
other_pad = get_single_pad (data->element, GST_PAD_SRC);
if (!other_pad) {
GST_WARNING_OBJECT (self, "Can not get element's other pad");
goto error;
}
other_peer = gst_pad_get_peer (other_pad);
gst_object_unref (other_pad);
if (!other_peer) {
GST_WARNING_OBJECT (self, "Can not get element's other peer");
goto error;
}
/* Get the negotiated caps for the source pad peer,
* because renegotiation while the pipeline is playing doesn't work
* that fast.
*/
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
caps = gst_pad_get_current_caps (pad);
else
peercaps = gst_pad_get_current_caps (other_peer);
if (!caps)
caps = gst_pad_query_caps (pad, NULL);
if (!peercaps)
peercaps = gst_pad_query_caps (other_peer, NULL);
can_intersect = gst_caps_can_intersect (caps, peercaps);
gst_caps_unref (caps);
gst_caps_unref (peercaps);
if (!can_intersect) {
GST_WARNING_OBJECT (self, "Pads are incompatible without the element");
goto error;
}
if (gst_pad_get_direction (other_peer) == GST_PAD_SRC &&
gst_pad_is_active (other_peer)) {
gulong probe_id;
probe_id = gst_pad_add_probe (other_peer,
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
wait_and_drop_eos_cb, NULL, NULL);
gst_pad_send_event (peer, gst_event_new_eos ());
gst_pad_remove_probe (other_peer, probe_id);
}
gst_element_set_locked_state (data->element, TRUE);
gst_element_set_state (data->element, GST_STATE_NULL);
if (!gst_bin_remove (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Element removal rejected");
goto error;
}
gst_element_set_locked_state (data->element, FALSE);
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (pad, other_peer,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
else
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (other_peer, pad,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
gst_object_unref (other_peer);
other_peer = NULL;
if (!success) {
GST_ERROR_OBJECT (self, "Could not re-link after the element's"
" removal");
goto error;
}
}
gst_insert_bin_change_data_complete (self, data, TRUE);
gst_object_unref (peer);
GST_OBJECT_LOCK (self);
continue;
done:
if (other_peer != NULL)
gst_object_unref (other_peer);
if (peer != NULL)
gst_object_unref (peer);
break;
retry:
GST_OBJECT_LOCK (self);
g_queue_push_head (&self->priv->change_queue, data);
goto done;
error:
/* Handle error */
gst_insert_bin_change_data_complete (self, data, FALSE);
GST_OBJECT_LOCK (self);
goto done;
}
next:
gst_insert_bin_block_pad_unlock (self);
}
static void
gst_insert_bin_block_pad_unlock (GstInsertBin * self)
{
struct ChangeData *data;
GstPad *pad;
GstPadProbeType probetype;
again:
data = g_queue_peek_head (&self->priv->change_queue);
if (!data) {
GST_OBJECT_UNLOCK (self);
return;
}
if (data->action == GST_INSERT_BIN_ACTION_ADD &&
!validate_element (self, data->element))
goto error;
if (data->action == GST_INSERT_BIN_ACTION_ADD) {
if (data->sibling) {
if (data->direction == DIRECTION_BEFORE)
pad = get_single_pad (data->sibling, GST_PAD_SINK);
else
pad = get_single_pad (data->sibling, GST_PAD_SRC);
} else {
if (data->direction == DIRECTION_BEFORE)
pad = (GstPad *)
gst_proxy_pad_get_internal (GST_PROXY_PAD (self->priv->srcpad));
else
pad = (GstPad *)
gst_proxy_pad_get_internal (GST_PROXY_PAD (self->priv->sinkpad));
}
if (!pad) {
GST_WARNING_OBJECT (self, "Can not obtain a sibling pad to block"
" before adding");
goto error;
}
if (!is_right_direction_for_block (pad)) {
GstPad *peer = gst_pad_get_peer (pad);
if (peer) {
gst_object_unref (pad);
pad = peer;
}
}
} else {
GstPad *element_pad;
element_pad = get_single_pad (data->element, GST_PAD_SINK);
if (!element_pad) {
GST_WARNING_OBJECT (self, "Can not obtain the element's sink pad");
goto error;
}
if (!is_right_direction_for_block (element_pad)) {
pad = gst_pad_get_peer (element_pad);
} else {
gst_object_unref (element_pad);
element_pad = get_single_pad (data->element, GST_PAD_SRC);
if (!element_pad) {
GST_WARNING_OBJECT (self, "Can not obtain the element's src pad");
goto error;
}
pad = gst_pad_get_peer (element_pad);
}
gst_object_unref (element_pad);
if (!pad) {
GST_WARNING_OBJECT (self, "Can not obtain a sibling pad for removing");
goto error;
}
}
if (GST_PAD_IS_SRC (pad))
probetype = GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM;
else
probetype = GST_PAD_PROBE_TYPE_BLOCK_UPSTREAM;
GST_OBJECT_UNLOCK (self);
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_IDLE | probetype, pad_blocked_cb,
self, NULL);
gst_object_unref (pad);
return;
error:
g_queue_pop_head (&self->priv->change_queue);
gst_insert_bin_change_data_complete (self, data, FALSE);
goto again;
}
