[babeltrace.git] / formats / ctf-text / ctf-text.c

/*
 * BabelTrace - Common Trace Format (CTF)
 *
 * CTF Text Format registration.
 *
 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
 *
 * Author: Mathieu Desnoyers <mathieu.desnoyers@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.
 */

#include <babeltrace/format.h>
#include <babeltrace/ctf-text/types.h>
#include <babeltrace/ctf/metadata.h>
#include <babeltrace/babeltrace-internal.h>
#include <inttypes.h>
#include <uuid/uuid.h>
#include <sys/mman.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#include <glib.h>
#include <unistd.h>
#include <stdlib.h>

int opt_all_field_names,
	opt_scope_field_names,
	opt_header_field_names,
	opt_context_field_names,
	opt_payload_field_names,
	opt_trace_name,
	opt_trace_domain,
	opt_trace_procname,
	opt_trace_vpid;

enum field_item {
	ITEM_SCOPE,
	ITEM_HEADER,
	ITEM_CONTEXT,
	ITEM_PAYLOAD,
};

struct trace_descriptor *ctf_text_open_trace(const char *collection_path,
		const char *path, int flags,
		void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
			int whence), FILE *metadata_fp);
void ctf_text_close_trace(struct trace_descriptor *descriptor);

static
rw_dispatch write_dispatch_table[] = {
	[ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
	[ CTF_TYPE_FLOAT ] = ctf_text_float_write,
	[ CTF_TYPE_ENUM ] = ctf_text_enum_write,
	[ CTF_TYPE_STRING ] = ctf_text_string_write,
	[ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
	[ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
	[ CTF_TYPE_ARRAY ] = ctf_text_array_write,
	[ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
};

static
struct format ctf_text_format = {
	.open_trace = ctf_text_open_trace,
	.close_trace = ctf_text_close_trace,
};

static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;

static
void __attribute__((constructor)) init_quarks(void)
{
	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
}

int print_field(struct definition *definition)
{
	/* Print all fields in verbose mode */
	if (babeltrace_verbose)
		return 1;

	/* Filter out part of the packet context */
	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
		return 0;
	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
		return 0;
	if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
		return 0;
	if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
		return 0;
	if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
		return 0;

	return 1;
}

static
void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
{
	switch (item) {
	case ITEM_SCOPE:
		if (opt_all_field_names || opt_scope_field_names)
			pos->print_names = 1;
		else
			pos->print_names = 0;
		break;
	case ITEM_HEADER:
		if (opt_all_field_names || opt_header_field_names)
			pos->print_names = 1;
		else
			pos->print_names = 0;
		break;
	case ITEM_CONTEXT:
		if (opt_all_field_names || opt_context_field_names)
			pos->print_names = 1;
		else
			pos->print_names = 0;
		break;
	case ITEM_PAYLOAD:
		if (opt_all_field_names || opt_payload_field_names)
			pos->print_names = 1;
		else
			pos->print_names = 0;

		break;
	default:
		assert(0);
	}
}

static
int ctf_text_write_event(struct stream_pos *ppos,
			 struct ctf_stream *stream)
{
	struct ctf_text_stream_pos *pos =
		container_of(ppos, struct ctf_text_stream_pos, parent);
	struct ctf_stream_class *stream_class = stream->stream_class;
	int field_nr_saved;
	struct ctf_event *event_class;
	struct ctf_stream_event *event;
	uint64_t id;
	int ret;
	int dom_print = 0;

	id = stream->event_id;

	if (id >= stream_class->events_by_id->len) {
		fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id);
		return -EINVAL;
	}
	event = g_ptr_array_index(stream->events_by_id, id);
	if (!event) {
		fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
		return -EINVAL;
	}
	event_class = g_ptr_array_index(stream_class->events_by_id, id);
	if (!event) {
		fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
		return -EINVAL;
	}

	if (stream->has_timestamp) {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names)
			fprintf(pos->fp, "timestamp = ");
		else
			fprintf(pos->fp, "[");
		fprintf(pos->fp, "%12" PRIu64, stream->timestamp);
		if (!pos->print_names)
			fprintf(pos->fp, "]");

		if (pos->print_names)
			fprintf(pos->fp, ", ");
		else
			fprintf(pos->fp, " ");
	}
	if ((opt_trace_name || opt_all_field_names) && stream_class->trace->path[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			if (opt_trace_name || opt_all_field_names)
				fprintf(pos->fp, "trace = ");
		}

		fprintf(pos->fp, "%s", stream_class->trace->path);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		else
			fprintf(pos->fp, " ");
	}
	if ((opt_trace_domain) && stream_class->trace->domain[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "trace:domain = ");
		}
		if (opt_trace_domain)
			fprintf(pos->fp, "%s", stream_class->trace->domain);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if ((opt_trace_procname) && stream_class->trace->procname[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "trace:procname = ");
		} else if (dom_print) {
			fprintf(pos->fp, ":");
		}

		if (opt_trace_procname)
			fprintf(pos->fp, "%s", stream_class->trace->procname);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if ((opt_trace_vpid) && stream_class->trace->vpid[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "trace:vpid = ");
		} else if (dom_print) {
			fprintf(pos->fp, ":");
		}

		if (opt_trace_vpid)
			fprintf(pos->fp, "%s", stream_class->trace->vpid);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if (dom_print && !pos->print_names)
		fprintf(pos->fp, " ");
	set_field_names_print(pos, ITEM_HEADER);
	if (pos->print_names)
		fprintf(pos->fp, "name = ");
	fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
	if (pos->print_names)
		pos->field_nr++;
	else
		fprintf(pos->fp, ":");

	/* print cpuid field from packet context */
	if (stream->stream_packet_context) {
		if (pos->field_nr++ != 0)
			fprintf(pos->fp, ",");
		set_field_names_print(pos, ITEM_SCOPE);
		if (pos->print_names)
			fprintf(pos->fp, " stream.packet.context =");
		field_nr_saved = pos->field_nr;
		pos->field_nr = 0;
		set_field_names_print(pos, ITEM_CONTEXT);
		ret = generic_rw(ppos, &stream->stream_packet_context->p);
		if (ret)
			goto error;
		pos->field_nr = field_nr_saved;
	}

	/* Only show the event header in verbose mode */
	if (babeltrace_verbose && stream->stream_event_header) {
		if (pos->field_nr++ != 0)
			fprintf(pos->fp, ",");
		set_field_names_print(pos, ITEM_SCOPE);
		if (pos->print_names)
			fprintf(pos->fp, " stream.event.header =");
		field_nr_saved = pos->field_nr;
		pos->field_nr = 0;
		set_field_names_print(pos, ITEM_CONTEXT);
		ret = generic_rw(ppos, &stream->stream_event_header->p);
		if (ret)
			goto error;
		pos->field_nr = field_nr_saved;
	}

	/* print stream-declared event context */
	if (stream->stream_event_context) {
		if (pos->field_nr++ != 0)
			fprintf(pos->fp, ",");
		set_field_names_print(pos, ITEM_SCOPE);
		if (pos->print_names)
			fprintf(pos->fp, " stream.event.context =");
		field_nr_saved = pos->field_nr;
		pos->field_nr = 0;
		set_field_names_print(pos, ITEM_CONTEXT);
		ret = generic_rw(ppos, &stream->stream_event_context->p);
		if (ret)
			goto error;
		pos->field_nr = field_nr_saved;
	}

	/* print event-declared event context */
	if (event->event_context) {
		if (pos->field_nr++ != 0)
			fprintf(pos->fp, ",");
		set_field_names_print(pos, ITEM_SCOPE);
		if (pos->print_names)
			fprintf(pos->fp, " event.context =");
		field_nr_saved = pos->field_nr;
		pos->field_nr = 0;
		set_field_names_print(pos, ITEM_CONTEXT);
		ret = generic_rw(ppos, &event->event_context->p);
		if (ret)
			goto error;
		pos->field_nr = field_nr_saved;
	}

	/* Read and print event payload */
	if (event->event_fields) {
		if (pos->field_nr++ != 0)
			fprintf(pos->fp, ",");
		set_field_names_print(pos, ITEM_SCOPE);
		if (pos->print_names)
			fprintf(pos->fp, " event.fields =");
		field_nr_saved = pos->field_nr;
		pos->field_nr = 0;
		set_field_names_print(pos, ITEM_PAYLOAD);
		ret = generic_rw(ppos, &event->event_fields->p);
		if (ret)
			goto error;
		pos->field_nr = field_nr_saved;
	}
	/* newline */
	fprintf(pos->fp, "\n");
	pos->field_nr = 0;

	return 0;

error:
	fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
	return ret;
}


struct trace_descriptor *ctf_text_open_trace(const char *collection_path,
		const char *path, int flags,
		void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
			int whence), FILE *metadata_fp)
{
	struct ctf_text_stream_pos *pos;
	FILE *fp;

	pos = g_new0(struct ctf_text_stream_pos, 1);

	switch (flags & O_ACCMODE) {
	case O_RDWR:
		if (!path)
			fp = stdout;
		else
			fp = fopen(path, "w");
		if (!fp)
			goto error;
		pos->fp = fp;
		pos->parent.rw_table = write_dispatch_table;
		pos->parent.event_cb = ctf_text_write_event;
		pos->print_names = 0;
		break;
	case O_RDONLY:
	default:
		fprintf(stdout, "[error] Incorrect open flags.\n");
		goto error;
	}

	return &pos->trace_descriptor;
error:
	g_free(pos);
	return NULL;
}

void ctf_text_close_trace(struct trace_descriptor *td)
{
	struct ctf_text_stream_pos *pos =
		container_of(td, struct ctf_text_stream_pos, trace_descriptor);
	fclose(pos->fp);
	g_free(pos);
}

void __attribute__((constructor)) ctf_text_init(void)
{
	int ret;

	ctf_text_format.name = g_quark_from_static_string("text");
	ret = bt_register_format(&ctf_text_format);
	assert(!ret);
}

/* TODO: finalize */
Commit	Line	Data
642ec66d MD	1	/*
	2	* BabelTrace - Common Trace Format (CTF)
	3	*
	4	* CTF Text Format registration.
	5	*
64fa3fec MD	6	* Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
	7	*
	8	* Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
642ec66d MD	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
	21	#include <babeltrace/format.h>
	22	#include <babeltrace/ctf-text/types.h>
31262354	23	#include <babeltrace/ctf/metadata.h>
70bd0a12	24	#include <babeltrace/babeltrace-internal.h>
642ec66d MD	25	#include <inttypes.h>
	26	#include <uuid/uuid.h>
	27	#include <sys/mman.h>
	28	#include <errno.h>
	29	#include <sys/types.h>
	30	#include <sys/stat.h>
	31	#include <fcntl.h>
	32	#include <dirent.h>
	33	#include <glib.h>
	34	#include <unistd.h>
	35	#include <stdlib.h>
	36
cba1661c MD	37	int opt_all_field_names,
	38	opt_scope_field_names,
	39	opt_header_field_names,
	40	opt_context_field_names,
82662ad4	41	opt_payload_field_names,
8c250d87 MD	42	opt_trace_name,
	43	opt_trace_domain,
	44	opt_trace_procname,
	45	opt_trace_vpid;
cba1661c MD	46
	47	enum field_item {
	48	ITEM_SCOPE,
	49	ITEM_HEADER,
	50	ITEM_CONTEXT,
	51	ITEM_PAYLOAD,
	52	};
b88d6e85	53
8c250d87 MD	54	struct trace_descriptor ctf_text_open_trace(const char collection_path,
8c250d87 MD	55	const char *path, int flags,
b086c01a	56	void (move_pos_slow)(struct ctf_stream_pos pos, size_t offset,
ae23d232	57	int whence), FILE *metadata_fp);
642ec66d MD	58	void ctf_text_close_trace(struct trace_descriptor *descriptor);
642ec66d MD	59
642ec66d MD	60	static
	61	rw_dispatch write_dispatch_table[] = {
	62	[ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
	63	[ CTF_TYPE_FLOAT ] = ctf_text_float_write,
	64	[ CTF_TYPE_ENUM ] = ctf_text_enum_write,
	65	[ CTF_TYPE_STRING ] = ctf_text_string_write,
	66	[ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
	67	[ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
	68	[ CTF_TYPE_ARRAY ] = ctf_text_array_write,
	69	[ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
	70	};
	71
	72	static
	73	struct format ctf_text_format = {
	74	.open_trace = ctf_text_open_trace,
	75	.close_trace = ctf_text_close_trace,
	76	};
	77
d335f0f7 MD	78	static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
	79	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
	80	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
	81	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
	82	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;
	83
	84	static
	85	void __attribute__((constructor)) init_quarks(void)
	86	{
	87	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
	88	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
	89	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
	90	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
	91	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
	92	}
	93
	94	int print_field(struct definition *definition)
	95	{
	96	/* Print all fields in verbose mode */
	97	if (babeltrace_verbose)
	98	return 1;
	99
	100	/* Filter out part of the packet context */
	101	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
	102	return 0;
	103	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
	104	return 0;
	105	if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
	106	return 0;
	107	if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
	108	return 0;
	109	if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
	110	return 0;
	111
	112	return 1;
	113	}
	114
cba1661c MD	115	static
	116	void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
	117	{
	118	switch (item) {
	119	case ITEM_SCOPE:
	120	if (opt_all_field_names \|\| opt_scope_field_names)
	121	pos->print_names = 1;
	122	else
	123	pos->print_names = 0;
	124	break;
	125	case ITEM_HEADER:
	126	if (opt_all_field_names \|\| opt_header_field_names)
	127	pos->print_names = 1;
	128	else
	129	pos->print_names = 0;
	130	break;
	131	case ITEM_CONTEXT:
	132	if (opt_all_field_names \|\| opt_context_field_names)
	133	pos->print_names = 1;
	134	else
	135	pos->print_names = 0;
	136	break;
	137	case ITEM_PAYLOAD:
	138	if (opt_all_field_names \|\| opt_payload_field_names)
	139	pos->print_names = 1;
	140	else
	141	pos->print_names = 0;
	142
	143	break;
	144	default:
	145	assert(0);
	146	}
	147	}
	148
31262354 MD	149	static
31262354 MD	150	int ctf_text_write_event(struct stream_pos *ppos,
764af3f4	151	struct ctf_stream *stream)
31262354 MD	152	{
	153	struct ctf_text_stream_pos *pos =
	154	container_of(ppos, struct ctf_text_stream_pos, parent);
764af3f4	155	struct ctf_stream_class *stream_class = stream->stream_class;
fd3382e8	156	int field_nr_saved;
31262354	157	struct ctf_event *event_class;
42dc00b7	158	struct ctf_stream_event *event;
c87a8eb2	159	uint64_t id;
31262354	160	int ret;
8c250d87	161	int dom_print = 0;
31262354	162
c87a8eb2	163	id = stream->event_id;
31262354 MD	164
	165	if (id >= stream_class->events_by_id->len) {
	166	fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id);
	167	return -EINVAL;
	168	}
e28d4618 MD	169	event = g_ptr_array_index(stream->events_by_id, id);
	170	if (!event) {
	171	fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
	172	return -EINVAL;
	173	}
31262354	174	event_class = g_ptr_array_index(stream_class->events_by_id, id);
e28d4618	175	if (!event) {
31262354 MD	176	fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
	177	return -EINVAL;
	178	}
	179
5e2eb0ae	180	if (stream->has_timestamp) {
cba1661c	181	set_field_names_print(pos, ITEM_HEADER);
be60c7fb MD	182	if (pos->print_names)
	183	fprintf(pos->fp, "timestamp = ");
	184	else
	185	fprintf(pos->fp, "[");
	186	fprintf(pos->fp, "%12" PRIu64, stream->timestamp);
	187	if (!pos->print_names)
	188	fprintf(pos->fp, "]");
aa6bffae	189
be60c7fb MD	190	if (pos->print_names)
	191	fprintf(pos->fp, ", ");
	192	else
	193	fprintf(pos->fp, " ");
	194	}
82662ad4 MD	195	if ((opt_trace_name \|\| opt_all_field_names) && stream_class->trace->path[0] != '\0') {
82662ad4 MD	196	set_field_names_print(pos, ITEM_HEADER);
8c250d87 MD	197	if (pos->print_names) {
	198	if (opt_trace_name \|\| opt_all_field_names)
	199	fprintf(pos->fp, "trace = ");
	200	}
82662ad4 MD	201
82662ad4 MD	202	fprintf(pos->fp, "%s", stream_class->trace->path);
82662ad4 MD	203	if (pos->print_names)
	204	fprintf(pos->fp, ", ");
	205	else
	206	fprintf(pos->fp, " ");
	207	}
8c250d87 MD	208	if ((opt_trace_domain) && stream_class->trace->domain[0] != '\0') {
	209	set_field_names_print(pos, ITEM_HEADER);
	210	if (pos->print_names) {
	211	fprintf(pos->fp, "trace:domain = ");
	212	}
	213	if (opt_trace_domain)
	214	fprintf(pos->fp, "%s", stream_class->trace->domain);
	215	if (pos->print_names)
	216	fprintf(pos->fp, ", ");
	217	dom_print = 1;
	218	}
	219	if ((opt_trace_procname) && stream_class->trace->procname[0] != '\0') {
	220	set_field_names_print(pos, ITEM_HEADER);
	221	if (pos->print_names) {
	222	fprintf(pos->fp, "trace:procname = ");
	223	} else if (dom_print) {
	224	fprintf(pos->fp, ":");
	225	}
	226
	227	if (opt_trace_procname)
	228	fprintf(pos->fp, "%s", stream_class->trace->procname);
	229	if (pos->print_names)
	230	fprintf(pos->fp, ", ");
	231	dom_print = 1;
	232	}
	233	if ((opt_trace_vpid) && stream_class->trace->vpid[0] != '\0') {
	234	set_field_names_print(pos, ITEM_HEADER);
	235	if (pos->print_names) {
	236	fprintf(pos->fp, "trace:vpid = ");
	237	} else if (dom_print) {
	238	fprintf(pos->fp, ":");
	239	}
	240
	241	if (opt_trace_vpid)
	242	fprintf(pos->fp, "%s", stream_class->trace->vpid);
	243	if (pos->print_names)
	244	fprintf(pos->fp, ", ");
	245	dom_print = 1;
	246	}
	247	if (dom_print && !pos->print_names)
	248	fprintf(pos->fp, " ");
cba1661c	249	set_field_names_print(pos, ITEM_HEADER);
31262354 MD	250	if (pos->print_names)
31262354 MD	251	fprintf(pos->fp, "name = ");
8178fe48 MD	252	fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
8178fe48 MD	253	if (pos->print_names)
fd3382e8	254	pos->field_nr++;
8178fe48	255	else
fd3382e8	256	fprintf(pos->fp, ":");
31262354	257
e28d4618 MD	258	/* print cpuid field from packet context */
	259	if (stream->stream_packet_context) {
	260	if (pos->field_nr++ != 0)
	261	fprintf(pos->fp, ",");
cba1661c	262	set_field_names_print(pos, ITEM_SCOPE);
e28d4618 MD	263	if (pos->print_names)
	264	fprintf(pos->fp, " stream.packet.context =");
	265	field_nr_saved = pos->field_nr;
	266	pos->field_nr = 0;
cba1661c	267	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 MD	268	ret = generic_rw(ppos, &stream->stream_packet_context->p);
	269	if (ret)
	270	goto error;
	271	pos->field_nr = field_nr_saved;
	272	}
	273
764af3f4	274	/* Only show the event header in verbose mode */
e28d4618	275	if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8 MD	276	if (pos->field_nr++ != 0)
fd3382e8 MD	277	fprintf(pos->fp, ",");
cba1661c	278	set_field_names_print(pos, ITEM_SCOPE);
31262354	279	if (pos->print_names)
fd3382e8 MD	280	fprintf(pos->fp, " stream.event.header =");
	281	field_nr_saved = pos->field_nr;
	282	pos->field_nr = 0;
cba1661c	283	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	284	ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354 MD	285	if (ret)
31262354 MD	286	goto error;
fd3382e8	287	pos->field_nr = field_nr_saved;
31262354 MD	288	}
	289
	290	/* print stream-declared event context */
e28d4618	291	if (stream->stream_event_context) {
fd3382e8 MD	292	if (pos->field_nr++ != 0)
fd3382e8 MD	293	fprintf(pos->fp, ",");
cba1661c	294	set_field_names_print(pos, ITEM_SCOPE);
31262354	295	if (pos->print_names)
fd3382e8 MD	296	fprintf(pos->fp, " stream.event.context =");
	297	field_nr_saved = pos->field_nr;
	298	pos->field_nr = 0;
cba1661c	299	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	300	ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354 MD	301	if (ret)
31262354 MD	302	goto error;
fd3382e8	303	pos->field_nr = field_nr_saved;
31262354 MD	304	}
	305
	306	/* print event-declared event context */
e28d4618	307	if (event->event_context) {
fd3382e8 MD	308	if (pos->field_nr++ != 0)
fd3382e8 MD	309	fprintf(pos->fp, ",");
cba1661c	310	set_field_names_print(pos, ITEM_SCOPE);
31262354	311	if (pos->print_names)
fd3382e8 MD	312	fprintf(pos->fp, " event.context =");
	313	field_nr_saved = pos->field_nr;
	314	pos->field_nr = 0;
cba1661c	315	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	316	ret = generic_rw(ppos, &event->event_context->p);
31262354 MD	317	if (ret)
31262354 MD	318	goto error;
fd3382e8	319	pos->field_nr = field_nr_saved;
31262354 MD	320	}
	321
	322	/* Read and print event payload */
e28d4618	323	if (event->event_fields) {
fd3382e8 MD	324	if (pos->field_nr++ != 0)
fd3382e8 MD	325	fprintf(pos->fp, ",");
cba1661c	326	set_field_names_print(pos, ITEM_SCOPE);
31262354	327	if (pos->print_names)
fd3382e8 MD	328	fprintf(pos->fp, " event.fields =");
	329	field_nr_saved = pos->field_nr;
	330	pos->field_nr = 0;
cba1661c	331	set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618	332	ret = generic_rw(ppos, &event->event_fields->p);
31262354 MD	333	if (ret)
31262354 MD	334	goto error;
fd3382e8	335	pos->field_nr = field_nr_saved;
31262354	336	}
fd3382e8	337	/* newline */
31262354	338	fprintf(pos->fp, "\n");
fd3382e8	339	pos->field_nr = 0;
31262354 MD	340
	341	return 0;
	342
	343	error:
	344	fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
	345	return ret;
	346	}
	347
	348
8c250d87 MD	349	struct trace_descriptor ctf_text_open_trace(const char collection_path,
8c250d87 MD	350	const char *path, int flags,
b086c01a	351	void (move_pos_slow)(struct ctf_stream_pos pos, size_t offset,
ae23d232	352	int whence), FILE *metadata_fp)
642ec66d MD	353	{
	354	struct ctf_text_stream_pos *pos;
	355	FILE *fp;
	356
	357	pos = g_new0(struct ctf_text_stream_pos, 1);
	358
	359	switch (flags & O_ACCMODE) {
989c73bc	360	case O_RDWR:
b61922b5	361	if (!path)
6cf7957b MD	362	fp = stdout;
	363	else
	364	fp = fopen(path, "w");
642ec66d MD	365	if (!fp)
	366	goto error;
	367	pos->fp = fp;
	368	pos->parent.rw_table = write_dispatch_table;
31262354	369	pos->parent.event_cb = ctf_text_write_event;
cba1661c	370	pos->print_names = 0;
642ec66d MD	371	break;
	372	case O_RDONLY:
	373	default:
	374	fprintf(stdout, "[error] Incorrect open flags.\n");
	375	goto error;
	376	}
	377
	378	return &pos->trace_descriptor;
	379	error:
	380	g_free(pos);
	381	return NULL;
	382	}
	383
	384	void ctf_text_close_trace(struct trace_descriptor *td)
	385	{
	386	struct ctf_text_stream_pos *pos =
	387	container_of(td, struct ctf_text_stream_pos, trace_descriptor);
	388	fclose(pos->fp);
	389	g_free(pos);
	390	}
	391
	392	void __attribute__((constructor)) ctf_text_init(void)
	393	{
	394	int ret;
	395
	396	ctf_text_format.name = g_quark_from_static_string("text");
	397	ret = bt_register_format(&ctf_text_format);
	398	assert(!ret);
	399	}
	400
	401	/* TODO: finalize */