[babeltrace.git] / plugins / utils / dummy / dummy.c

/*
 * Copyright 2017 Philippe Proulx <pproulx@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <babeltrace/babeltrace.h>
#include <babeltrace/babeltrace-internal.h>
#include <plugins-common.h>
#include <babeltrace/assert-internal.h>
#include "dummy.h"

void destroy_private_dummy_data(struct dummy *dummy)
{
	bt_put(dummy->notif_iter);
	g_free(dummy);
}

void dummy_finalize(struct bt_private_component *component)
{
	struct dummy *dummy;

	BT_ASSERT(component);
	dummy = bt_private_component_get_user_data(component);
	BT_ASSERT(dummy);
	destroy_private_dummy_data(dummy);
}

enum bt_component_status dummy_init(struct bt_private_component *component,
		struct bt_value *params, UNUSED_VAR void *init_method_data)
{
	enum bt_component_status ret;
	struct dummy *dummy = g_new0(struct dummy, 1);

	if (!dummy) {
		ret = BT_COMPONENT_STATUS_NOMEM;
		goto end;
	}

	ret = bt_private_component_sink_add_input_private_port(component,
		"in", NULL, NULL);
	if (ret != BT_COMPONENT_STATUS_OK) {
		goto end;
	}

	ret = bt_private_component_set_user_data(component, dummy);
	if (ret != BT_COMPONENT_STATUS_OK) {
		goto error;
	}

	goto end;

error:
	destroy_private_dummy_data(dummy);

end:
	return ret;
}

void dummy_port_connected(
		struct bt_private_component *component,
		struct bt_private_port *self_port,
		struct bt_port *other_port)
{
	struct dummy *dummy;
	struct bt_notification_iterator *iterator;
	struct bt_private_connection *connection;
	enum bt_connection_status conn_status;

	dummy = bt_private_component_get_user_data(component);
	BT_ASSERT(dummy);
	connection = bt_private_port_get_private_connection(self_port);
	BT_ASSERT(connection);
	conn_status = bt_private_connection_create_notification_iterator(
		connection, &iterator);
	if (conn_status != BT_CONNECTION_STATUS_OK) {
		dummy->error = true;
		goto end;
	}

	BT_MOVE(dummy->notif_iter, iterator);

end:
	bt_put(connection);
}

enum bt_component_status dummy_consume(struct bt_private_component *component)
{
	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	bt_notification_array notifs;
	uint64_t count;
	struct dummy *dummy;
	enum bt_notification_iterator_status it_ret;
	uint64_t i;

	dummy = bt_private_component_get_user_data(component);
	BT_ASSERT(dummy);

	if (unlikely(dummy->error)) {
		ret = BT_COMPONENT_STATUS_ERROR;
		goto end;
	}

	if (unlikely(!dummy->notif_iter)) {
		ret = BT_COMPONENT_STATUS_END;
		goto end;
	}

	/* Consume one notification  */
	it_ret = bt_private_connection_notification_iterator_next(
		dummy->notif_iter, &notifs, &count);
	switch (it_ret) {
	case BT_NOTIFICATION_ITERATOR_STATUS_OK:
		ret = BT_COMPONENT_STATUS_OK;

		for (i = 0; i < count; i++) {
			bt_put(notifs[i]);
		}

		break;
	case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
		ret = BT_COMPONENT_STATUS_AGAIN;
		goto end;
	case BT_NOTIFICATION_ITERATOR_STATUS_END:
		ret = BT_COMPONENT_STATUS_END;
		goto end;
	case BT_NOTIFICATION_ITERATOR_STATUS_ERROR:
		ret = BT_COMPONENT_STATUS_ERROR;
		goto end;
	default:
		break;
	}

end:
	return ret;
}
Commit	Line	Data
	1	/*
	2	* Copyright 2017 Philippe Proulx <pproulx@efficios.com>
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a copy
	5	* of this software and associated documentation files (the "Software"), to deal
	6	* in the Software without restriction, including without limitation the rights
	7	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	8	* copies of the Software, and to permit persons to whom the Software is
	9	* furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	17	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	18	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	19	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	20	* SOFTWARE.
	21	*/
	22
	23	#include <babeltrace/babeltrace.h>
	24	#include <babeltrace/babeltrace-internal.h>
	25	#include <plugins-common.h>
	26	#include <babeltrace/assert-internal.h>
	27	#include "dummy.h"
	28
	29	void destroy_private_dummy_data(struct dummy *dummy)
	30	{
	31	bt_put(dummy->notif_iter);
	32	g_free(dummy);
	33	}
	34
	35	void dummy_finalize(struct bt_private_component *component)
	36	{
	37	struct dummy *dummy;
	38
	39	BT_ASSERT(component);
	40	dummy = bt_private_component_get_user_data(component);
	41	BT_ASSERT(dummy);
	42	destroy_private_dummy_data(dummy);
	43	}
	44
	45	enum bt_component_status dummy_init(struct bt_private_component *component,
	46	struct bt_value params, UNUSED_VAR void init_method_data)
	47	{
	48	enum bt_component_status ret;
	49	struct dummy *dummy = g_new0(struct dummy, 1);
	50
	51	if (!dummy) {
	52	ret = BT_COMPONENT_STATUS_NOMEM;
	53	goto end;
	54	}
	55
	56	ret = bt_private_component_sink_add_input_private_port(component,
	57	"in", NULL, NULL);
	58	if (ret != BT_COMPONENT_STATUS_OK) {
	59	goto end;
	60	}
	61
	62	ret = bt_private_component_set_user_data(component, dummy);
	63	if (ret != BT_COMPONENT_STATUS_OK) {
	64	goto error;
	65	}
	66
	67	goto end;
	68
	69	error:
	70	destroy_private_dummy_data(dummy);
	71
	72	end:
	73	return ret;
	74	}
	75
	76	void dummy_port_connected(
	77	struct bt_private_component *component,
	78	struct bt_private_port *self_port,
	79	struct bt_port *other_port)
	80	{
	81	struct dummy *dummy;
	82	struct bt_notification_iterator *iterator;
	83	struct bt_private_connection *connection;
	84	enum bt_connection_status conn_status;
	85
	86	dummy = bt_private_component_get_user_data(component);
	87	BT_ASSERT(dummy);
	88	connection = bt_private_port_get_private_connection(self_port);
	89	BT_ASSERT(connection);
	90	conn_status = bt_private_connection_create_notification_iterator(
	91	connection, &iterator);
	92	if (conn_status != BT_CONNECTION_STATUS_OK) {
	93	dummy->error = true;
	94	goto end;
	95	}
	96
	97	BT_MOVE(dummy->notif_iter, iterator);
	98
	99	end:
	100	bt_put(connection);
	101	}
	102
	103	enum bt_component_status dummy_consume(struct bt_private_component *component)
	104	{
	105	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	106	bt_notification_array notifs;
	107	uint64_t count;
	108	struct dummy *dummy;
	109	enum bt_notification_iterator_status it_ret;
	110	uint64_t i;
	111
	112	dummy = bt_private_component_get_user_data(component);
	113	BT_ASSERT(dummy);
	114
	115	if (unlikely(dummy->error)) {
	116	ret = BT_COMPONENT_STATUS_ERROR;
	117	goto end;
	118	}
	119
	120	if (unlikely(!dummy->notif_iter)) {
	121	ret = BT_COMPONENT_STATUS_END;
	122	goto end;
	123	}
	124
	125	/* Consume one notification */
	126	it_ret = bt_private_connection_notification_iterator_next(
	127	dummy->notif_iter, &notifs, &count);
	128	switch (it_ret) {
	129	case BT_NOTIFICATION_ITERATOR_STATUS_OK:
	130	ret = BT_COMPONENT_STATUS_OK;
	131
	132	for (i = 0; i < count; i++) {
	133	bt_put(notifs[i]);
	134	}
	135
	136	break;
	137	case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
	138	ret = BT_COMPONENT_STATUS_AGAIN;
	139	goto end;
	140	case BT_NOTIFICATION_ITERATOR_STATUS_END:
	141	ret = BT_COMPONENT_STATUS_END;
	142	goto end;
	143	case BT_NOTIFICATION_ITERATOR_STATUS_ERROR:
	144	ret = BT_COMPONENT_STATUS_ERROR;
	145	goto end;
	146	default:
	147	break;
	148	}
	149
	150	end:
	151	return ret;
	152	}