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owr_message_origin.c
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/*
* Copyright (c) 2015, Ericsson AB. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*/
/*/
\*\ OwrMessageOrigin
/*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "owr_message_origin.h"
#include "owr_message_origin_private.h"
#include "owr_bus_private.h"
#include "owr_utils.h"
G_DEFINE_INTERFACE(OwrMessageOrigin, owr_message_origin, 0)
void owr_message_origin_default_init(OwrMessageOriginInterface *interface)
{
interface->get_bus_set = NULL;
}
static void bus_set_value_destroy_func(GWeakRef *ref)
{
g_weak_ref_clear(ref);
g_slice_free(GWeakRef, ref);
}
OwrMessageOriginBusSet *owr_message_origin_bus_set_new()
{
OwrMessageOriginBusSet *bus_set;
bus_set = g_slice_new0(OwrMessageOriginBusSet);
bus_set->table = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL,
(GDestroyNotify) bus_set_value_destroy_func);
g_mutex_init(&bus_set->mutex);
return bus_set;
}
void owr_message_origin_bus_set_free(OwrMessageOriginBusSet *bus_set)
{
g_hash_table_unref(bus_set->table);
bus_set->table = NULL;
g_mutex_clear(&bus_set->mutex);
g_slice_free(OwrMessageOriginBusSet, bus_set);
}
OwrMessageOriginBusSet *owr_message_origin_get_bus_set(OwrMessageOrigin *origin)
{
OwrMessageOriginInterface *interface;
OwrMessageOriginBusSet *result = NULL;
g_return_val_if_fail(OWR_IS_MESSAGE_ORIGIN(origin), NULL);
interface = OWR_MESSAGE_ORIGIN_GET_INTERFACE(origin);
if (interface->get_bus_set) {
result = interface->get_bus_set(origin);
}
return result;
}
/**
* owr_message_origin_post_message:
* @origin: (transfer none): the origin that is posting the message
* @type: the #OwrMessageType of the message
* @sub_type: the #OwrMessageSubType of the message
* @data: (element-type utf8 GValue) (nullable) (transfer full): extra data
*
* Post a new message to all buses that are subscribed to @origin
*/
void owr_message_origin_post_message(OwrMessageOrigin *origin, OwrMessageType type, OwrMessageSubType sub_type, GHashTable *data)
{
OwrMessage *message;
OwrMessageOriginBusSet *bus_set;
GHashTableIter iter;
GWeakRef *ref;
OwrBus *bus;
g_return_if_fail(OWR_IS_MESSAGE_ORIGIN(origin));
message = _owr_message_new(origin, type, sub_type, data);
GST_TRACE_OBJECT(origin, "posting message %p", message);
bus_set = owr_message_origin_get_bus_set(origin);
g_return_if_fail(bus_set);
g_mutex_lock(&bus_set->mutex);
g_hash_table_iter_init(&iter, bus_set->table);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &ref)) {
bus = g_weak_ref_get(ref);
if (bus) {
_owr_bus_post_message(bus, message);
g_object_unref(bus);
} else {
GST_DEBUG_OBJECT(origin, "message bus finalized, removing weak ref: %p", ref);
g_hash_table_iter_remove(&iter);
}
}
_owr_message_unref(message);
g_mutex_unlock(&bus_set->mutex);
}