[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>

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;
}

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;
	}

	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
a619fcb7	50	gboolean empty_trace_map(gpointer key, gpointer value, gpointer user_data)
f3168545	51	{
a619fcb7 JD	52	struct fs_writer *fs_writer = value;
	53	struct writer_component *writer_component = user_data;
	54
3b41eaba	55	fs_writer->trace_static = 1;
a619fcb7 JD	56	writer_close(writer_component, fs_writer);
a619fcb7 JD	57
f3168545 JD	58	return TRUE;
	59	}
	60
bc506aa5 JD	61	static
	62	void destroy_writer_component_data(struct writer_component *writer_component)
	63	{
c70ed359	64	bt_put(writer_component->input_iterator);
f3168545	65
f3168545	66	g_hash_table_foreach_remove(writer_component->trace_map,
a619fcb7	67	empty_trace_map, writer_component);
bc506aa5	68	g_hash_table_destroy(writer_component->trace_map);
f3168545	69
9057f037 JD	70	g_string_free(writer_component->base_path, true);
9057f037 JD	71	g_string_free(writer_component->trace_name_base, true);
bc506aa5 JD	72	}
bc506aa5 JD	73
d8866baa PP	74	BT_HIDDEN
d8866baa PP	75	void writer_component_finalize(struct bt_private_component *component)
bc506aa5 JD	76	{
bc506aa5 JD	77	struct writer_component writer_component = (struct writer_component )
890882ef	78	bt_private_component_get_user_data(component);
bc506aa5 JD	79
	80	destroy_writer_component_data(writer_component);
	81	g_free(writer_component);
	82	}
	83
bc506aa5	84	static
f3168545	85	void free_fs_writer(struct fs_writer *fs_writer)
bc506aa5	86	{
f3168545 JD	87	bt_put(fs_writer->writer);
f3168545 JD	88	g_free(fs_writer);
bc506aa5 JD	89	}
	90
	91	static
	92	struct writer_component *create_writer_component(void)
	93	{
	94	struct writer_component *writer_component;
	95
	96	writer_component = g_new0(struct writer_component, 1);
	97	if (!writer_component) {
	98	goto end;
	99	}
	100
	101	writer_component->err = stderr;
	102	writer_component->trace_id = 0;
9057f037 JD	103	writer_component->trace_name_base = g_string_new("trace");
	104	if (!writer_component->trace_name_base) {
	105	g_free(writer_component);
	106	writer_component = NULL;
	107	goto end;
	108	}
bc506aa5 JD	109
	110	/*
	111	* Reader to writer corresponding structures.
	112	*/
	113	writer_component->trace_map = g_hash_table_new_full(g_direct_hash,
f3168545	114	g_direct_equal, NULL, (GDestroyNotify) free_fs_writer);
bc506aa5 JD	115
	116	end:
	117	return writer_component;
	118	}
	119
	120	static
	121	enum bt_component_status handle_notification(
	122	struct writer_component *writer_component,
	123	struct bt_notification *notification)
	124	{
	125	enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
	126
	127	if (!writer_component) {
	128	ret = BT_COMPONENT_STATUS_ERROR;
	129	goto end;
	130	}
	131
	132	switch (bt_notification_get_type(notification)) {
ea0e619e	133	case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
bc506aa5 JD	134	{
bc506aa5 JD	135	struct bt_ctf_packet *packet =
ea0e619e	136	bt_notification_packet_begin_get_packet(notification);
bc506aa5 JD	137
	138	if (!packet) {
	139	ret = BT_COMPONENT_STATUS_ERROR;
	140	goto end;
	141	}
	142
	143	ret = writer_new_packet(writer_component, packet);
	144	bt_put(packet);
	145	break;
	146	}
	147	case BT_NOTIFICATION_TYPE_PACKET_END:
	148	{
	149	struct bt_ctf_packet *packet =
ea0e619e	150	bt_notification_packet_end_get_packet(notification);
bc506aa5 JD	151
	152	if (!packet) {
	153	ret = BT_COMPONENT_STATUS_ERROR;
	154	goto end;
	155	}
	156	ret = writer_close_packet(writer_component, packet);
	157	bt_put(packet);
	158	break;
	159	}
	160	case BT_NOTIFICATION_TYPE_EVENT:
	161	{
	162	struct bt_ctf_event *event = bt_notification_event_get_event(
	163	notification);
	164
	165	if (!event) {
	166	ret = BT_COMPONENT_STATUS_ERROR;
	167	goto end;
	168	}
bc506aa5 JD	169	ret = writer_output_event(writer_component, event);
	170	bt_put(event);
	171	if (ret != BT_COMPONENT_STATUS_OK) {
	172	goto end;
	173	}
	174	break;
	175	}
f384901f JD	176	case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
	177	{
	178	struct bt_ctf_stream *stream =
	179	bt_notification_stream_begin_get_stream(notification);
	180
	181	if (!stream) {
	182	ret = BT_COMPONENT_STATUS_ERROR;
	183	goto end;
	184	}
	185	ret = writer_stream_begin(writer_component, stream);
	186	bt_put(stream);
	187	break;
	188	}
bc506aa5	189	case BT_NOTIFICATION_TYPE_STREAM_END:
f3168545 JD	190	{
	191	struct bt_ctf_stream *stream =
	192	bt_notification_stream_end_get_stream(notification);
	193
	194	if (!stream) {
	195	ret = BT_COMPONENT_STATUS_ERROR;
	196	goto end;
	197	}
	198	ret = writer_stream_end(writer_component, stream);
	199	bt_put(stream);
bc506aa5	200	break;
f3168545	201	}
bc506aa5 JD	202	default:
	203	puts("Unhandled notification type");
	204	}
	205	end:
	206	return ret;
	207	}
	208
d8866baa	209	BT_HIDDEN
0d8b4d8e	210	void writer_component_port_connected(
890882ef	211	struct bt_private_component *component,
8f4799f7 PP	212	struct bt_private_port *self_port,
8f4799f7 PP	213	struct bt_port *other_port)
c70ed359	214	{
890882ef	215	struct bt_private_connection *connection;
c70ed359	216	struct writer_component *writer;
73d5c1ad	217	enum bt_connection_status conn_status;
93fc16a5	218	static const enum bt_notification_type notif_types[] = {
f3168545	219	BT_NOTIFICATION_TYPE_EVENT,
93fc16a5 JD	220	BT_NOTIFICATION_TYPE_PACKET_BEGIN,
93fc16a5 JD	221	BT_NOTIFICATION_TYPE_PACKET_END,
f384901f	222	BT_NOTIFICATION_TYPE_STREAM_BEGIN,
f3168545	223	BT_NOTIFICATION_TYPE_STREAM_END,
93fc16a5 JD	224	BT_NOTIFICATION_TYPE_SENTINEL,
93fc16a5 JD	225	};
c70ed359	226
890882ef	227	writer = bt_private_component_get_user_data(component);
c70ed359 JG	228	assert(writer);
c70ed359 JG	229	assert(!writer->input_iterator);
890882ef	230	connection = bt_private_port_get_private_connection(self_port);
72b913fb	231	assert(connection);
73d5c1ad PP	232	conn_status = bt_private_connection_create_notification_iterator(
	233	connection, notif_types, &writer->input_iterator);
	234	if (conn_status != BT_CONNECTION_STATUS_OK) {
0d8b4d8e	235	writer->error = true;
c70ed359	236	}
0d8b4d8e	237
72b913fb	238	bt_put(connection);
c70ed359 JG	239	}
c70ed359 JG	240
d8866baa PP	241	BT_HIDDEN
d8866baa PP	242	enum bt_component_status writer_run(struct bt_private_component *component)
bc506aa5 JD	243	{
	244	enum bt_component_status ret;
	245	struct bt_notification *notification = NULL;
	246	struct bt_notification_iterator *it;
	247	struct writer_component *writer_component =
890882ef	248	bt_private_component_get_user_data(component);
7cdc2bab	249	enum bt_notification_iterator_status it_ret;
bc506aa5	250
0d8b4d8e PP	251	if (unlikely(writer_component->error)) {
	252	ret = BT_COMPONENT_STATUS_ERROR;
	253	goto end;
	254	}
	255
7cdc2bab MD	256	it = writer_component->input_iterator;
	257	assert(it);
	258	it_ret = bt_notification_iterator_next(it);
bc506aa5	259
7cdc2bab MD	260	switch (it_ret) {
	261	case BT_NOTIFICATION_ITERATOR_STATUS_END:
	262	ret = BT_COMPONENT_STATUS_END;
	263	BT_PUT(writer_component->input_iterator);
	264	goto end;
	265	case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN:
	266	ret = BT_COMPONENT_STATUS_AGAIN;
	267	goto end;
	268	case BT_NOTIFICATION_ITERATOR_STATUS_OK:
	269	break;
	270	default:
72b913fb	271	ret = BT_COMPONENT_STATUS_ERROR;
996a07a1 JG	272	goto end;
	273	}
	274
7cdc2bab MD	275	notification = bt_notification_iterator_get_notification(it);
7cdc2bab MD	276	assert(notification);
bc506aa5 JD	277	ret = handle_notification(writer_component, notification);
bc506aa5 JD	278	end:
bc506aa5 JD	279	bt_put(notification);
	280	return ret;
	281	}
	282
d8866baa	283	BT_HIDDEN
bc506aa5	284	enum bt_component_status writer_component_init(
890882ef	285	struct bt_private_component component, struct bt_value params,
7d61fa8e	286	UNUSED_VAR void *init_method_data)
bc506aa5 JD	287	{
	288	enum bt_component_status ret;
	289	enum bt_value_status value_ret;
	290	struct writer_component *writer_component = create_writer_component();
	291	struct bt_value *value = NULL;
	292	const char *path;
	293
	294	if (!writer_component) {
	295	ret = BT_COMPONENT_STATUS_NOMEM;
	296	goto end;
	297	}
	298
147337a3 PP	299	ret = bt_private_component_sink_add_input_private_port(component,
	300	"in", NULL, NULL);
	301	if (ret != BT_COMPONENT_STATUS_OK) {
b9d103be PP	302	goto end;
	303	}
	304
bc506aa5 JD	305	value = bt_value_map_get(params, "path");
	306	if (!value \|\| bt_value_is_null(value) \|\| !bt_value_is_string(value)) {
	307	fprintf(writer_component->err,
	308	"[error] output path parameter required\n");
	309	ret = BT_COMPONENT_STATUS_INVALID;
	310	goto error;
	311	}
	312
	313	value_ret = bt_value_string_get(value, &path);
	314	if (value_ret != BT_VALUE_STATUS_OK) {
	315	ret = BT_COMPONENT_STATUS_INVALID;
	316	goto error;
	317	}
d00b90bf	318	bt_put(value);
bc506aa5	319
9057f037 JD	320	writer_component->base_path = g_string_new(path);
	321	if (!writer_component) {
	322	ret = BT_COMPONENT_STATUS_ERROR;
	323	goto error;
	324	}
bc506aa5	325
890882ef	326	ret = bt_private_component_set_user_data(component, writer_component);
bc506aa5 JD	327	if (ret != BT_COMPONENT_STATUS_OK) {
	328	goto error;
	329	}
	330
bc506aa5 JD	331	end:
	332	return ret;
	333	error:
	334	destroy_writer_component_data(writer_component);
56fa591a	335	g_free(writer_component);
bc506aa5 JD	336	return ret;
bc506aa5 JD	337	}