[babeltrace.git] / plugins / ctf / fs-sink / writer.c

/*
 * writer.c
 *
 * Babeltrace CTF Writer Output Plugin
 *
 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Author: Jérémie Galarneau <jeremie.galarneau@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/ctf-ir/packet.h>
#include <babeltrace/plugin/plugin-dev.h>
#include <babeltrace/graph/connection.h>
#include <babeltrace/graph/component.h>
#include <babeltrace/graph/private-component.h>
#include <babeltrace/graph/component-sink.h>
#include <babeltrace/graph/private-component-sink.h>
#include <babeltrace/graph/private-port.h>
#include <babeltrace/graph/private-connection.h>
#include <babeltrace/graph/notification.h>
#include <babeltrace/graph/notification-iterator.h>
#include <babeltrace/graph/notification-event.h>
#include <babeltrace/graph/notification-packet.h>
#include <babeltrace/graph/notification-stream.h>
#include <plugins-common.h>
#include <stdio.h>
#include <stdbool.h>
#include <glib.h>
#include "writer.h"
#include <assert.h>

static
gboolean empty_trace_map(gpointer key, gpointer value, gpointer user_data)
{
	struct fs_writer *fs_writer = value;
	struct writer_component *writer_component = user_data;

	fs_writer->trace_static = 1;
	writer_close(writer_component, fs_writer);

	return TRUE;
}

static
void destroy_writer_component_data(struct writer_component *writer_component)
{
	bt_put(writer_component->input_iterator);

	g_hash_table_foreach_remove(writer_component->trace_map,
			empty_trace_map, writer_component);
	g_hash_table_destroy(writer_component->trace_map);

	g_string_free(writer_component->base_path, true);
	g_string_free(writer_component->trace_name_base, true);
}

BT_HIDDEN
void writer_component_finalize(struct bt_private_component *component)
{
	struct writer_component *writer_component = (struct writer_component *)
		bt_private_component_get_user_data(component);

	destroy_writer_component_data(writer_component);
	g_free(writer_component);
}

static
void free_fs_writer(struct fs_writer *fs_writer)
{
	bt_put(fs_writer->writer);
	g_free(fs_writer);
}

static
struct writer_component *create_writer_component(void)
{
	struct writer_component *writer_component;

	writer_component = g_new0(struct writer_component, 1);
	if (!writer_component) {
		goto end;
	}

	writer_component->err = stderr;
	writer_component->trace_id = 0;
	writer_component->trace_name_base = g_string_new("trace");
	if (!writer_component->trace_name_base) {
		g_free(writer_component);
		writer_component = NULL;
		goto end;
	}

	/*
	 * Reader to writer corresponding structures.
	 */
	writer_component->trace_map = g_hash_table_new_full(g_direct_hash,
			g_direct_equal, NULL, (GDestroyNotify) free_fs_writer);

end:
	return writer_component;
}

static
enum bt_component_status handle_notification(
		struct writer_component *writer_component,
		struct bt_notification *notification)
{
	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;

	if (!writer_component) {
		ret = BT_COMPONENT_STATUS_ERROR;
		goto end;
	}

	switch (bt_notification_get_type(notification)) {
	case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
	{
		struct bt_ctf_packet *packet =
			bt_notification_packet_begin_get_packet(notification);

		if (!packet) {
			ret = BT_COMPONENT_STATUS_ERROR;
			goto end;
		}

		ret = writer_new_packet(writer_component, packet);
		bt_put(packet);
		break;
	}
	case BT_NOTIFICATION_TYPE_PACKET_END:
	{
		struct bt_ctf_packet *packet =
			bt_notification_packet_end_get_packet(notification);

		if (!packet) {
			ret = BT_COMPONENT_STATUS_ERROR;
			goto end;
		}
		ret = writer_close_packet(writer_component, packet);
		bt_put(packet);
		break;
	}
	case BT_NOTIFICATION_TYPE_EVENT:
	{
		struct bt_ctf_event *event = bt_notification_event_get_event(
				notification);

		if (!event) {
			ret = BT_COMPONENT_STATUS_ERROR;
			goto end;
		}
		ret = writer_output_event(writer_component, event);
		bt_put(event);
		if (ret != BT_COMPONENT_STATUS_OK) {
			goto end;
		}
		break;
	}
	case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
	{
		struct bt_ctf_stream *stream =
			bt_notification_stream_begin_get_stream(notification);

		if (!stream) {
			ret = BT_COMPONENT_STATUS_ERROR;
			goto end;
		}
		ret = writer_stream_begin(writer_component, stream);
		bt_put(stream);
		break;
	}
	case BT_NOTIFICATION_TYPE_STREAM_END:
	{
		struct bt_ctf_stream *stream =
			bt_notification_stream_end_get_stream(notification);

		if (!stream) {
			ret = BT_COMPONENT_STATUS_ERROR;
			goto end;
		}
		ret = writer_stream_end(writer_component, stream);
		bt_put(stream);
		break;
	}
	default:
		puts("Unhandled notification type");
	}
end:
	return ret;
}

BT_HIDDEN
void writer_component_port_connected(
		struct bt_private_component *component,
		struct bt_private_port *self_port,
		struct bt_port *other_port)
{
	struct bt_private_connection *connection;
	struct writer_component *writer;
	enum bt_connection_status conn_status;
	static const enum bt_notification_type notif_types[] = {
		BT_NOTIFICATION_TYPE_EVENT,
		BT_NOTIFICATION_TYPE_PACKET_BEGIN,
		BT_NOTIFICATION_TYPE_PACKET_END,
		BT_NOTIFICATION_TYPE_STREAM_BEGIN,
		BT_NOTIFICATION_TYPE_STREAM_END,
		BT_NOTIFICATION_TYPE_SENTINEL,
	};

	writer = bt_private_component_get_user_data(component);
	assert(writer);
	assert(!writer->input_iterator);
	connection = bt_private_port_get_private_connection(self_port);
	assert(connection);
	conn_status = bt_private_connection_create_notification_iterator(
		connection, notif_types, &writer->input_iterator);
	if (conn_status != BT_CONNECTION_STATUS_OK) {
		writer->error = true;
	}

	bt_put(connection);
}

BT_HIDDEN
enum bt_component_status writer_run(struct bt_private_component *component)
{
	enum bt_component_status ret;
	struct bt_notification *notification = NULL;
	struct bt_notification_iterator *it;
	struct writer_component *writer_component =
		bt_private_component_get_user_data(component);
	enum bt_notification_iterator_status it_ret;

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

	it = writer_component->input_iterator;
	assert(it);
	it_ret = bt_notification_iterator_next(it);

	switch (it_ret) {
	case BT_NOTIFICATION_ITERATOR_STATUS_END:
		ret = BT_COMPONENT_STATUS_END;
		BT_PUT(writer_component->input_iterator);
		goto end;
	case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
		ret = BT_COMPONENT_STATUS_AGAIN;
		goto end;
	case BT_NOTIFICATION_ITERATOR_STATUS_OK:
		break;
	default:
		ret = BT_COMPONENT_STATUS_ERROR;
		goto end;
	}

	notification = bt_notification_iterator_get_notification(it);
	assert(notification);
	ret = handle_notification(writer_component, notification);
end:
	bt_put(notification);
	return ret;
}

static
enum bt_component_status apply_one_bool(const char *key,
		struct bt_value *params,
		bool *option,
		bool *found)
{
	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	struct bt_value *value = NULL;
	enum bt_value_status status;
	bt_bool bool_val;

	value = bt_value_map_get(params, key);
	if (!value) {
		goto end;
	}
	status = bt_value_bool_get(value, &bool_val);
	if (status != BT_VALUE_STATUS_OK) {
		ret = BT_COMPONENT_STATUS_ERROR;
		goto end;
	}

	*option = (bool) bool_val;
	if (found) {
		*found = true;
	}
end:
	bt_put(value);
	return ret;
}

BT_HIDDEN
enum bt_component_status writer_component_init(
	struct bt_private_component *component, struct bt_value *params,
	UNUSED_VAR void *init_method_data)
{
	enum bt_component_status ret;
	enum bt_value_status value_ret;
	struct writer_component *writer_component = create_writer_component();
	struct bt_value *value = NULL;
	const char *path;

	if (!writer_component) {
		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;
	}

	value = bt_value_map_get(params, "path");
	if (!value || bt_value_is_null(value) || !bt_value_is_string(value)) {
		fprintf(writer_component->err,
				"[error] output path parameter required\n");
		ret = BT_COMPONENT_STATUS_INVALID;
		goto error;
	}

	value_ret = bt_value_string_get(value, &path);
	if (value_ret != BT_VALUE_STATUS_OK) {
		ret = BT_COMPONENT_STATUS_INVALID;
		goto error;
	}
	bt_put(value);

	writer_component->base_path = g_string_new(path);
	if (!writer_component) {
		ret = BT_COMPONENT_STATUS_ERROR;
		goto error;
	}

	writer_component->single_trace = false;
	ret = apply_one_bool("single-trace", params,
			&writer_component->single_trace, NULL);
	if (ret != BT_COMPONENT_STATUS_OK) {
		goto end;
	}

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

end:
	return ret;
error:
	destroy_writer_component_data(writer_component);
	g_free(writer_component);
	return ret;
}
Commit	Line	Data
bc506aa5 JD	1	/*
	2	* writer.c
	3	*
	4	* Babeltrace CTF Writer Output Plugin
	5	*
	6	* Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	7	*
	8	* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	23	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	24	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	25	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	26	* SOFTWARE.
	27	*/
	28
	29	#include <babeltrace/ctf-ir/packet.h>
33b34c43	30	#include <babeltrace/plugin/plugin-dev.h>
73d5c1ad	31	#include <babeltrace/graph/connection.h>
b2e0c907 PP	32	#include <babeltrace/graph/component.h>
	33	#include <babeltrace/graph/private-component.h>
	34	#include <babeltrace/graph/component-sink.h>
	35	#include <babeltrace/graph/private-component-sink.h>
	36	#include <babeltrace/graph/private-port.h>
	37	#include <babeltrace/graph/private-connection.h>
	38	#include <babeltrace/graph/notification.h>
	39	#include <babeltrace/graph/notification-iterator.h>
	40	#include <babeltrace/graph/notification-event.h>
	41	#include <babeltrace/graph/notification-packet.h>
f3168545	42	#include <babeltrace/graph/notification-stream.h>
7d61fa8e	43	#include <plugins-common.h>
bc506aa5 JD	44	#include <stdio.h>
	45	#include <stdbool.h>
	46	#include <glib.h>
	47	#include "writer.h"
c70ed359	48	#include <assert.h>
bc506aa5	49
1c78e839	50	static
a619fcb7	51	gboolean empty_trace_map(gpointer key, gpointer value, gpointer user_data)
f3168545	52	{
a619fcb7 JD	53	struct fs_writer *fs_writer = value;
	54	struct writer_component *writer_component = user_data;
	55
3b41eaba	56	fs_writer->trace_static = 1;
a619fcb7 JD	57	writer_close(writer_component, fs_writer);
a619fcb7 JD	58
f3168545 JD	59	return TRUE;
	60	}
	61
bc506aa5 JD	62	static
	63	void destroy_writer_component_data(struct writer_component *writer_component)
	64	{
c70ed359	65	bt_put(writer_component->input_iterator);
f3168545	66
f3168545	67	g_hash_table_foreach_remove(writer_component->trace_map,
a619fcb7	68	empty_trace_map, writer_component);
bc506aa5	69	g_hash_table_destroy(writer_component->trace_map);
f3168545	70
9057f037 JD	71	g_string_free(writer_component->base_path, true);
9057f037 JD	72	g_string_free(writer_component->trace_name_base, true);
bc506aa5 JD	73	}
bc506aa5 JD	74
d8866baa PP	75	BT_HIDDEN
d8866baa PP	76	void writer_component_finalize(struct bt_private_component *component)
bc506aa5 JD	77	{
bc506aa5 JD	78	struct writer_component writer_component = (struct writer_component )
890882ef	79	bt_private_component_get_user_data(component);
bc506aa5 JD	80
	81	destroy_writer_component_data(writer_component);
	82	g_free(writer_component);
	83	}
	84
bc506aa5	85	static
f3168545	86	void free_fs_writer(struct fs_writer *fs_writer)
bc506aa5	87	{
f3168545 JD	88	bt_put(fs_writer->writer);
f3168545 JD	89	g_free(fs_writer);
bc506aa5 JD	90	}
	91
	92	static
	93	struct writer_component *create_writer_component(void)
	94	{
	95	struct writer_component *writer_component;
	96
	97	writer_component = g_new0(struct writer_component, 1);
	98	if (!writer_component) {
	99	goto end;
	100	}
	101
	102	writer_component->err = stderr;
	103	writer_component->trace_id = 0;
9057f037 JD	104	writer_component->trace_name_base = g_string_new("trace");
	105	if (!writer_component->trace_name_base) {
	106	g_free(writer_component);
	107	writer_component = NULL;
	108	goto end;
	109	}
bc506aa5 JD	110
	111	/*
	112	* Reader to writer corresponding structures.
	113	*/
	114	writer_component->trace_map = g_hash_table_new_full(g_direct_hash,
f3168545	115	g_direct_equal, NULL, (GDestroyNotify) free_fs_writer);
bc506aa5 JD	116
	117	end:
	118	return writer_component;
	119	}
	120
	121	static
	122	enum bt_component_status handle_notification(
	123	struct writer_component *writer_component,
	124	struct bt_notification *notification)
	125	{
	126	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	127
	128	if (!writer_component) {
	129	ret = BT_COMPONENT_STATUS_ERROR;
	130	goto end;
	131	}
	132
	133	switch (bt_notification_get_type(notification)) {
ea0e619e	134	case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
bc506aa5 JD	135	{
bc506aa5 JD	136	struct bt_ctf_packet *packet =
ea0e619e	137	bt_notification_packet_begin_get_packet(notification);
bc506aa5 JD	138
	139	if (!packet) {
	140	ret = BT_COMPONENT_STATUS_ERROR;
	141	goto end;
	142	}
	143
	144	ret = writer_new_packet(writer_component, packet);
	145	bt_put(packet);
	146	break;
	147	}
	148	case BT_NOTIFICATION_TYPE_PACKET_END:
	149	{
	150	struct bt_ctf_packet *packet =
ea0e619e	151	bt_notification_packet_end_get_packet(notification);
bc506aa5 JD	152
	153	if (!packet) {
	154	ret = BT_COMPONENT_STATUS_ERROR;
	155	goto end;
	156	}
	157	ret = writer_close_packet(writer_component, packet);
	158	bt_put(packet);
	159	break;
	160	}
	161	case BT_NOTIFICATION_TYPE_EVENT:
	162	{
	163	struct bt_ctf_event *event = bt_notification_event_get_event(
	164	notification);
	165
	166	if (!event) {
	167	ret = BT_COMPONENT_STATUS_ERROR;
	168	goto end;
	169	}
bc506aa5 JD	170	ret = writer_output_event(writer_component, event);
	171	bt_put(event);
	172	if (ret != BT_COMPONENT_STATUS_OK) {
	173	goto end;
	174	}
	175	break;
	176	}
f384901f JD	177	case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
	178	{
	179	struct bt_ctf_stream *stream =
	180	bt_notification_stream_begin_get_stream(notification);
	181
	182	if (!stream) {
	183	ret = BT_COMPONENT_STATUS_ERROR;
	184	goto end;
	185	}
	186	ret = writer_stream_begin(writer_component, stream);
	187	bt_put(stream);
	188	break;
	189	}
bc506aa5	190	case BT_NOTIFICATION_TYPE_STREAM_END:
f3168545 JD	191	{
	192	struct bt_ctf_stream *stream =
	193	bt_notification_stream_end_get_stream(notification);
	194
	195	if (!stream) {
	196	ret = BT_COMPONENT_STATUS_ERROR;
	197	goto end;
	198	}
	199	ret = writer_stream_end(writer_component, stream);
	200	bt_put(stream);
bc506aa5	201	break;
f3168545	202	}
bc506aa5 JD	203	default:
	204	puts("Unhandled notification type");
	205	}
	206	end:
	207	return ret;
	208	}
	209
d8866baa	210	BT_HIDDEN
0d8b4d8e	211	void writer_component_port_connected(
890882ef	212	struct bt_private_component *component,
8f4799f7 PP	213	struct bt_private_port *self_port,
8f4799f7 PP	214	struct bt_port *other_port)
c70ed359	215	{
890882ef	216	struct bt_private_connection *connection;
c70ed359	217	struct writer_component *writer;
73d5c1ad	218	enum bt_connection_status conn_status;
93fc16a5	219	static const enum bt_notification_type notif_types[] = {
f3168545	220	BT_NOTIFICATION_TYPE_EVENT,
93fc16a5 JD	221	BT_NOTIFICATION_TYPE_PACKET_BEGIN,
93fc16a5 JD	222	BT_NOTIFICATION_TYPE_PACKET_END,
f384901f	223	BT_NOTIFICATION_TYPE_STREAM_BEGIN,
f3168545	224	BT_NOTIFICATION_TYPE_STREAM_END,
93fc16a5 JD	225	BT_NOTIFICATION_TYPE_SENTINEL,
93fc16a5 JD	226	};
c70ed359	227
890882ef	228	writer = bt_private_component_get_user_data(component);
c70ed359 JG	229	assert(writer);
c70ed359 JG	230	assert(!writer->input_iterator);
890882ef	231	connection = bt_private_port_get_private_connection(self_port);
72b913fb	232	assert(connection);
73d5c1ad PP	233	conn_status = bt_private_connection_create_notification_iterator(
	234	connection, notif_types, &writer->input_iterator);
	235	if (conn_status != BT_CONNECTION_STATUS_OK) {
0d8b4d8e	236	writer->error = true;
c70ed359	237	}
0d8b4d8e	238
72b913fb	239	bt_put(connection);
c70ed359 JG	240	}
c70ed359 JG	241
d8866baa PP	242	BT_HIDDEN
d8866baa PP	243	enum bt_component_status writer_run(struct bt_private_component *component)
bc506aa5 JD	244	{
	245	enum bt_component_status ret;
	246	struct bt_notification *notification = NULL;
	247	struct bt_notification_iterator *it;
	248	struct writer_component *writer_component =
890882ef	249	bt_private_component_get_user_data(component);
7cdc2bab	250	enum bt_notification_iterator_status it_ret;
bc506aa5	251
0d8b4d8e PP	252	if (unlikely(writer_component->error)) {
	253	ret = BT_COMPONENT_STATUS_ERROR;
	254	goto end;
	255	}
	256
7cdc2bab MD	257	it = writer_component->input_iterator;
	258	assert(it);
	259	it_ret = bt_notification_iterator_next(it);
bc506aa5	260
7cdc2bab MD	261	switch (it_ret) {
	262	case BT_NOTIFICATION_ITERATOR_STATUS_END:
	263	ret = BT_COMPONENT_STATUS_END;
	264	BT_PUT(writer_component->input_iterator);
	265	goto end;
	266	case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
	267	ret = BT_COMPONENT_STATUS_AGAIN;
	268	goto end;
	269	case BT_NOTIFICATION_ITERATOR_STATUS_OK:
	270	break;
	271	default:
72b913fb	272	ret = BT_COMPONENT_STATUS_ERROR;
996a07a1 JG	273	goto end;
	274	}
	275
7cdc2bab MD	276	notification = bt_notification_iterator_get_notification(it);
7cdc2bab MD	277	assert(notification);
bc506aa5 JD	278	ret = handle_notification(writer_component, notification);
bc506aa5 JD	279	end:
bc506aa5 JD	280	bt_put(notification);
	281	return ret;
	282	}
	283
6ca0eb99 JD	284	static
	285	enum bt_component_status apply_one_bool(const char *key,
	286	struct bt_value *params,
	287	bool *option,
	288	bool *found)
	289	{
	290	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	291	struct bt_value *value = NULL;
	292	enum bt_value_status status;
	293	bt_bool bool_val;
	294
	295	value = bt_value_map_get(params, key);
	296	if (!value) {
	297	goto end;
	298	}
	299	status = bt_value_bool_get(value, &bool_val);
802af08e	300	if (status != BT_VALUE_STATUS_OK) {
6ca0eb99 JD	301	ret = BT_COMPONENT_STATUS_ERROR;
	302	goto end;
	303	}
802af08e	304
6ca0eb99 JD	305	*option = (bool) bool_val;
	306	if (found) {
	307	*found = true;
	308	}
	309	end:
	310	bt_put(value);
	311	return ret;
	312	}
	313
d8866baa	314	BT_HIDDEN
bc506aa5	315	enum bt_component_status writer_component_init(
890882ef	316	struct bt_private_component component, struct bt_value params,
7d61fa8e	317	UNUSED_VAR void *init_method_data)
bc506aa5 JD	318	{
	319	enum bt_component_status ret;
	320	enum bt_value_status value_ret;
	321	struct writer_component *writer_component = create_writer_component();
	322	struct bt_value *value = NULL;
	323	const char *path;
	324
	325	if (!writer_component) {
	326	ret = BT_COMPONENT_STATUS_NOMEM;
	327	goto end;
	328	}
	329
147337a3 PP	330	ret = bt_private_component_sink_add_input_private_port(component,
	331	"in", NULL, NULL);
	332	if (ret != BT_COMPONENT_STATUS_OK) {
b9d103be PP	333	goto end;
	334	}
	335
bc506aa5 JD	336	value = bt_value_map_get(params, "path");
	337	if (!value \|\| bt_value_is_null(value) \|\| !bt_value_is_string(value)) {
	338	fprintf(writer_component->err,
	339	"[error] output path parameter required\n");
	340	ret = BT_COMPONENT_STATUS_INVALID;
	341	goto error;
	342	}
	343
	344	value_ret = bt_value_string_get(value, &path);
	345	if (value_ret != BT_VALUE_STATUS_OK) {
	346	ret = BT_COMPONENT_STATUS_INVALID;
	347	goto error;
	348	}
d00b90bf	349	bt_put(value);
bc506aa5	350
9057f037 JD	351	writer_component->base_path = g_string_new(path);
	352	if (!writer_component) {
	353	ret = BT_COMPONENT_STATUS_ERROR;
	354	goto error;
	355	}
bc506aa5	356
6ca0eb99 JD	357	writer_component->single_trace = false;
	358	ret = apply_one_bool("single-trace", params,
	359	&writer_component->single_trace, NULL);
	360	if (ret != BT_COMPONENT_STATUS_OK) {
	361	goto end;
	362	}
	363
890882ef	364	ret = bt_private_component_set_user_data(component, writer_component);
bc506aa5 JD	365	if (ret != BT_COMPONENT_STATUS_OK) {
	366	goto error;
	367	}
	368
bc506aa5 JD	369	end:
	370	return ret;
	371	error:
	372	destroy_writer_component_data(writer_component);
56fa591a	373	g_free(writer_component);
bc506aa5 JD	374	return ret;
bc506aa5 JD	375	}