[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>

#define NSEC_PER_SEC 1000000000ULL

int opt_all_field_names,
	opt_scope_field_names,
	opt_header_field_names,
	opt_context_field_names,
	opt_payload_field_names,
	opt_all_fields,
	opt_trace_field,
	opt_trace_domain_field,
	opt_trace_procname_field,
	opt_trace_vpid_field,
	opt_loglevel_field,
	opt_delta_field = 1;

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

	/* Print events discarded */
	if (stream->events_discarded) {
		fflush(pos->fp);
		fprintf(stderr, "[warning] Tracer discarded %d events between [",
			stream->events_discarded);
		ctf_print_timestamp(stderr, stream, stream->prev_timestamp);
		fprintf(stderr, "] and [");
		ctf_print_timestamp(stderr, stream, stream->prev_timestamp_end);
		fprintf(stderr, "]. You should consider increasing the buffer size.\n");
		fflush(stderr);
		stream->events_discarded = 0;
	}

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

		if (pos->print_names)
			fprintf(pos->fp, ", ");
		else
			fprintf(pos->fp, " ");
	}
	if ((opt_delta_field || opt_all_fields) && stream->has_timestamp) {
		uint64_t delta, delta_sec, delta_nsec;

		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names)
			fprintf(pos->fp, "delta = ");
		else
			fprintf(pos->fp, "(");
		if (pos->last_timestamp != -1ULL) {
			delta = stream->timestamp - pos->last_timestamp;
			delta_sec = delta / NSEC_PER_SEC;
			delta_nsec = delta % NSEC_PER_SEC;
			fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
				delta_sec, delta_nsec);
		} else {
			fprintf(pos->fp, "+?.?????????");
		}
		if (!pos->print_names)
			fprintf(pos->fp, ")");

		if (pos->print_names)
			fprintf(pos->fp, ", ");
		else
			fprintf(pos->fp, " ");
		pos->last_timestamp = stream->timestamp;
	}

	if ((opt_trace_field || opt_all_fields) && stream_class->trace->path[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_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_field && !opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "trace:domain = ");
		}
		fprintf(pos->fp, "%s", stream_class->trace->env.domain);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if ((opt_trace_procname_field && !opt_all_fields) && stream_class->trace->env.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, ":");
		}
		fprintf(pos->fp, "%s", stream_class->trace->env.procname);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if ((opt_trace_vpid_field && !opt_all_fields) && stream_class->trace->env.vpid != -1) {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "trace:vpid = ");
		} else if (dom_print) {
			fprintf(pos->fp, ":");
		}
		fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
		if (pos->print_names)
			fprintf(pos->fp, ", ");
		dom_print = 1;
	}
	if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) {
		set_field_names_print(pos, ITEM_HEADER);
		if (pos->print_names) {
			fprintf(pos->fp, "loglevel = ");
		} else if (dom_print) {
			fprintf(pos->fp, ":");
		}
		fprintf(pos->fp, "(%d)",
			event_class->loglevel);
		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(stderr, "[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);

	pos->last_timestamp = -1ULL;
	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(stderr, "[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
bfe74b8c MD	37	#define NSEC_PER_SEC 1000000000ULL
bfe74b8c MD	38
cba1661c MD	39	int opt_all_field_names,
	40	opt_scope_field_names,
	41	opt_header_field_names,
	42	opt_context_field_names,
82662ad4	43	opt_payload_field_names,
359d7456 MD	44	opt_all_fields,
	45	opt_trace_field,
	46	opt_trace_domain_field,
	47	opt_trace_procname_field,
	48	opt_trace_vpid_field,
	49	opt_loglevel_field,
7d97fad9	50	opt_delta_field = 1;
cba1661c MD	51
	52	enum field_item {
	53	ITEM_SCOPE,
	54	ITEM_HEADER,
	55	ITEM_CONTEXT,
	56	ITEM_PAYLOAD,
	57	};
b88d6e85	58
8c250d87 MD	59	struct trace_descriptor ctf_text_open_trace(const char collection_path,
8c250d87 MD	60	const char *path, int flags,
b086c01a	61	void (move_pos_slow)(struct ctf_stream_pos pos, size_t offset,
ae23d232	62	int whence), FILE *metadata_fp);
642ec66d MD	63	void ctf_text_close_trace(struct trace_descriptor *descriptor);
642ec66d MD	64
642ec66d MD	65	static
	66	rw_dispatch write_dispatch_table[] = {
	67	[ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
	68	[ CTF_TYPE_FLOAT ] = ctf_text_float_write,
	69	[ CTF_TYPE_ENUM ] = ctf_text_enum_write,
	70	[ CTF_TYPE_STRING ] = ctf_text_string_write,
	71	[ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
	72	[ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
	73	[ CTF_TYPE_ARRAY ] = ctf_text_array_write,
	74	[ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
	75	};
	76
	77	static
	78	struct format ctf_text_format = {
	79	.open_trace = ctf_text_open_trace,
	80	.close_trace = ctf_text_close_trace,
	81	};
	82
d335f0f7 MD	83	static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
	84	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
	85	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
	86	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
	87	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;
	88
	89	static
	90	void __attribute__((constructor)) init_quarks(void)
	91	{
	92	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
	93	Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
	94	Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
	95	Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
	96	Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
	97	}
	98
	99	int print_field(struct definition *definition)
	100	{
	101	/* Print all fields in verbose mode */
	102	if (babeltrace_verbose)
	103	return 1;
	104
	105	/* Filter out part of the packet context */
	106	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
	107	return 0;
	108	if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
	109	return 0;
	110	if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
	111	return 0;
	112	if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
	113	return 0;
	114	if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
	115	return 0;
	116
	117	return 1;
	118	}
	119
cba1661c MD	120	static
	121	void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
	122	{
	123	switch (item) {
	124	case ITEM_SCOPE:
	125	if (opt_all_field_names \|\| opt_scope_field_names)
	126	pos->print_names = 1;
	127	else
	128	pos->print_names = 0;
	129	break;
	130	case ITEM_HEADER:
	131	if (opt_all_field_names \|\| opt_header_field_names)
	132	pos->print_names = 1;
	133	else
	134	pos->print_names = 0;
	135	break;
	136	case ITEM_CONTEXT:
	137	if (opt_all_field_names \|\| opt_context_field_names)
	138	pos->print_names = 1;
	139	else
	140	pos->print_names = 0;
	141	break;
	142	case ITEM_PAYLOAD:
	143	if (opt_all_field_names \|\| opt_payload_field_names)
	144	pos->print_names = 1;
	145	else
	146	pos->print_names = 0;
	147
	148	break;
	149	default:
	150	assert(0);
	151	}
	152	}
	153
31262354 MD	154	static
31262354 MD	155	int ctf_text_write_event(struct stream_pos *ppos,
764af3f4	156	struct ctf_stream *stream)
31262354 MD	157	{
	158	struct ctf_text_stream_pos *pos =
	159	container_of(ppos, struct ctf_text_stream_pos, parent);
764af3f4	160	struct ctf_stream_class *stream_class = stream->stream_class;
fd3382e8	161	int field_nr_saved;
31262354	162	struct ctf_event *event_class;
42dc00b7	163	struct ctf_stream_event *event;
c87a8eb2	164	uint64_t id;
31262354	165	int ret;
8c250d87	166	int dom_print = 0;
31262354	167
c87a8eb2	168	id = stream->event_id;
31262354 MD	169
31262354 MD	170	if (id >= stream_class->events_by_id->len) {
3394d22e	171	fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
31262354 MD	172	return -EINVAL;
31262354 MD	173	}
e28d4618 MD	174	event = g_ptr_array_index(stream->events_by_id, id);
e28d4618 MD	175	if (!event) {
3394d22e	176	fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
e28d4618 MD	177	return -EINVAL;
e28d4618 MD	178	}
31262354	179	event_class = g_ptr_array_index(stream_class->events_by_id, id);
e28d4618	180	if (!event) {
3394d22e	181	fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
31262354 MD	182	return -EINVAL;
	183	}
	184
fca04958 MD	185	/* Print events discarded */
fca04958 MD	186	if (stream->events_discarded) {
7d97fad9	187	fflush(pos->fp);
fca04958 MD	188	fprintf(stderr, "[warning] Tracer discarded %d events between [",
fca04958 MD	189	stream->events_discarded);
7d97fad9	190	ctf_print_timestamp(stderr, stream, stream->prev_timestamp);
fca04958	191	fprintf(stderr, "] and [");
7d97fad9	192	ctf_print_timestamp(stderr, stream, stream->prev_timestamp_end);
fca04958 MD	193	fprintf(stderr, "]. You should consider increasing the buffer size.\n");
	194	fflush(stderr);
	195	stream->events_discarded = 0;
	196	}
	197
5e2eb0ae	198	if (stream->has_timestamp) {
cba1661c	199	set_field_names_print(pos, ITEM_HEADER);
be60c7fb MD	200	if (pos->print_names)
	201	fprintf(pos->fp, "timestamp = ");
	202	else
	203	fprintf(pos->fp, "[");
7d97fad9	204	ctf_print_timestamp(pos->fp, stream, stream->timestamp);
be60c7fb MD	205	if (!pos->print_names)
be60c7fb MD	206	fprintf(pos->fp, "]");
aa6bffae	207
be60c7fb MD	208	if (pos->print_names)
	209	fprintf(pos->fp, ", ");
	210	else
	211	fprintf(pos->fp, " ");
	212	}
359d7456	213	if ((opt_delta_field \|\| opt_all_fields) && stream->has_timestamp) {
8d8ed9af MD	214	uint64_t delta, delta_sec, delta_nsec;
	215
	216	set_field_names_print(pos, ITEM_HEADER);
	217	if (pos->print_names)
	218	fprintf(pos->fp, "delta = ");
	219	else
	220	fprintf(pos->fp, "(");
	221	if (pos->last_timestamp != -1ULL) {
	222	delta = stream->timestamp - pos->last_timestamp;
	223	delta_sec = delta / NSEC_PER_SEC;
	224	delta_nsec = delta % NSEC_PER_SEC;
	225	fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
	226	delta_sec, delta_nsec);
	227	} else {
	228	fprintf(pos->fp, "+?.?????????");
	229	}
	230	if (!pos->print_names)
	231	fprintf(pos->fp, ")");
	232
	233	if (pos->print_names)
	234	fprintf(pos->fp, ", ");
	235	else
	236	fprintf(pos->fp, " ");
	237	pos->last_timestamp = stream->timestamp;
	238	}
	239
359d7456	240	if ((opt_trace_field \|\| opt_all_fields) && stream_class->trace->path[0] != '\0') {
82662ad4	241	set_field_names_print(pos, ITEM_HEADER);
8c250d87	242	if (pos->print_names) {
359d7456	243	fprintf(pos->fp, "trace = ");
8c250d87	244	}
82662ad4	245	fprintf(pos->fp, "%s", stream_class->trace->path);
82662ad4 MD	246	if (pos->print_names)
	247	fprintf(pos->fp, ", ");
	248	else
	249	fprintf(pos->fp, " ");
	250	}
1842a4c8	251	if ((opt_trace_domain_field && !opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
8c250d87 MD	252	set_field_names_print(pos, ITEM_HEADER);
	253	if (pos->print_names) {
	254	fprintf(pos->fp, "trace:domain = ");
	255	}
1842a4c8	256	fprintf(pos->fp, "%s", stream_class->trace->env.domain);
8c250d87 MD	257	if (pos->print_names)
	258	fprintf(pos->fp, ", ");
	259	dom_print = 1;
	260	}
1842a4c8	261	if ((opt_trace_procname_field && !opt_all_fields) && stream_class->trace->env.procname[0] != '\0') {
8c250d87 MD	262	set_field_names_print(pos, ITEM_HEADER);
	263	if (pos->print_names) {
	264	fprintf(pos->fp, "trace:procname = ");
	265	} else if (dom_print) {
	266	fprintf(pos->fp, ":");
	267	}
1842a4c8	268	fprintf(pos->fp, "%s", stream_class->trace->env.procname);
8c250d87 MD	269	if (pos->print_names)
	270	fprintf(pos->fp, ", ");
	271	dom_print = 1;
	272	}
1842a4c8	273	if ((opt_trace_vpid_field && !opt_all_fields) && stream_class->trace->env.vpid != -1) {
8c250d87 MD	274	set_field_names_print(pos, ITEM_HEADER);
	275	if (pos->print_names) {
	276	fprintf(pos->fp, "trace:vpid = ");
	277	} else if (dom_print) {
	278	fprintf(pos->fp, ":");
	279	}
1842a4c8	280	fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
8c250d87 MD	281	if (pos->print_names)
	282	fprintf(pos->fp, ", ");
	283	dom_print = 1;
	284	}
306eeaa6	285	if ((opt_loglevel_field \|\| opt_all_fields) && event_class->loglevel != -1) {
d86d62f8 MD	286	set_field_names_print(pos, ITEM_HEADER);
	287	if (pos->print_names) {
	288	fprintf(pos->fp, "loglevel = ");
	289	} else if (dom_print) {
	290	fprintf(pos->fp, ":");
	291	}
306eeaa6 MD	292	fprintf(pos->fp, "(%d)",
306eeaa6 MD	293	event_class->loglevel);
d86d62f8 MD	294	if (pos->print_names)
	295	fprintf(pos->fp, ", ");
	296	dom_print = 1;
	297	}
8c250d87 MD	298	if (dom_print && !pos->print_names)
8c250d87 MD	299	fprintf(pos->fp, " ");
cba1661c	300	set_field_names_print(pos, ITEM_HEADER);
31262354 MD	301	if (pos->print_names)
31262354 MD	302	fprintf(pos->fp, "name = ");
8178fe48 MD	303	fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
8178fe48 MD	304	if (pos->print_names)
fd3382e8	305	pos->field_nr++;
8178fe48	306	else
fd3382e8	307	fprintf(pos->fp, ":");
31262354	308
e28d4618 MD	309	/* print cpuid field from packet context */
	310	if (stream->stream_packet_context) {
	311	if (pos->field_nr++ != 0)
	312	fprintf(pos->fp, ",");
cba1661c	313	set_field_names_print(pos, ITEM_SCOPE);
e28d4618 MD	314	if (pos->print_names)
	315	fprintf(pos->fp, " stream.packet.context =");
	316	field_nr_saved = pos->field_nr;
	317	pos->field_nr = 0;
cba1661c	318	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 MD	319	ret = generic_rw(ppos, &stream->stream_packet_context->p);
	320	if (ret)
	321	goto error;
	322	pos->field_nr = field_nr_saved;
	323	}
	324
764af3f4	325	/* Only show the event header in verbose mode */
e28d4618	326	if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8 MD	327	if (pos->field_nr++ != 0)
fd3382e8 MD	328	fprintf(pos->fp, ",");
cba1661c	329	set_field_names_print(pos, ITEM_SCOPE);
31262354	330	if (pos->print_names)
fd3382e8 MD	331	fprintf(pos->fp, " stream.event.header =");
	332	field_nr_saved = pos->field_nr;
	333	pos->field_nr = 0;
cba1661c	334	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	335	ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354 MD	336	if (ret)
31262354 MD	337	goto error;
fd3382e8	338	pos->field_nr = field_nr_saved;
31262354 MD	339	}
	340
	341	/* print stream-declared event context */
e28d4618	342	if (stream->stream_event_context) {
fd3382e8 MD	343	if (pos->field_nr++ != 0)
fd3382e8 MD	344	fprintf(pos->fp, ",");
cba1661c	345	set_field_names_print(pos, ITEM_SCOPE);
31262354	346	if (pos->print_names)
fd3382e8 MD	347	fprintf(pos->fp, " stream.event.context =");
	348	field_nr_saved = pos->field_nr;
	349	pos->field_nr = 0;
cba1661c	350	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	351	ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354 MD	352	if (ret)
31262354 MD	353	goto error;
fd3382e8	354	pos->field_nr = field_nr_saved;
31262354 MD	355	}
	356
	357	/* print event-declared event context */
e28d4618	358	if (event->event_context) {
fd3382e8 MD	359	if (pos->field_nr++ != 0)
fd3382e8 MD	360	fprintf(pos->fp, ",");
cba1661c	361	set_field_names_print(pos, ITEM_SCOPE);
31262354	362	if (pos->print_names)
fd3382e8 MD	363	fprintf(pos->fp, " event.context =");
	364	field_nr_saved = pos->field_nr;
	365	pos->field_nr = 0;
cba1661c	366	set_field_names_print(pos, ITEM_CONTEXT);
e28d4618	367	ret = generic_rw(ppos, &event->event_context->p);
31262354 MD	368	if (ret)
31262354 MD	369	goto error;
fd3382e8	370	pos->field_nr = field_nr_saved;
31262354 MD	371	}
	372
	373	/* Read and print event payload */
e28d4618	374	if (event->event_fields) {
fd3382e8 MD	375	if (pos->field_nr++ != 0)
fd3382e8 MD	376	fprintf(pos->fp, ",");
cba1661c	377	set_field_names_print(pos, ITEM_SCOPE);
31262354	378	if (pos->print_names)
fd3382e8 MD	379	fprintf(pos->fp, " event.fields =");
	380	field_nr_saved = pos->field_nr;
	381	pos->field_nr = 0;
cba1661c	382	set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618	383	ret = generic_rw(ppos, &event->event_fields->p);
31262354 MD	384	if (ret)
31262354 MD	385	goto error;
fd3382e8	386	pos->field_nr = field_nr_saved;
31262354	387	}
fd3382e8	388	/* newline */
31262354	389	fprintf(pos->fp, "\n");
fd3382e8	390	pos->field_nr = 0;
31262354 MD	391
	392	return 0;
	393
	394	error:
3394d22e	395	fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
31262354 MD	396	return ret;
	397	}
	398
	399
8c250d87 MD	400	struct trace_descriptor ctf_text_open_trace(const char collection_path,
8c250d87 MD	401	const char *path, int flags,
b086c01a	402	void (move_pos_slow)(struct ctf_stream_pos pos, size_t offset,
ae23d232	403	int whence), FILE *metadata_fp)
642ec66d MD	404	{
	405	struct ctf_text_stream_pos *pos;
	406	FILE *fp;
	407
	408	pos = g_new0(struct ctf_text_stream_pos, 1);
	409
8d8ed9af	410	pos->last_timestamp = -1ULL;
642ec66d	411	switch (flags & O_ACCMODE) {
989c73bc	412	case O_RDWR:
b61922b5	413	if (!path)
6cf7957b MD	414	fp = stdout;
	415	else
	416	fp = fopen(path, "w");
642ec66d MD	417	if (!fp)
	418	goto error;
	419	pos->fp = fp;
	420	pos->parent.rw_table = write_dispatch_table;
31262354	421	pos->parent.event_cb = ctf_text_write_event;
cba1661c	422	pos->print_names = 0;
642ec66d MD	423	break;
	424	case O_RDONLY:
	425	default:
3394d22e	426	fprintf(stderr, "[error] Incorrect open flags.\n");
642ec66d MD	427	goto error;
	428	}
	429
	430	return &pos->trace_descriptor;
	431	error:
	432	g_free(pos);
	433	return NULL;
	434	}
	435
	436	void ctf_text_close_trace(struct trace_descriptor *td)
	437	{
	438	struct ctf_text_stream_pos *pos =
	439	container_of(td, struct ctf_text_stream_pos, trace_descriptor);
	440	fclose(pos->fp);
	441	g_free(pos);
	442	}
	443
	444	void __attribute__((constructor)) ctf_text_init(void)
	445	{
	446	int ret;
	447
	448	ctf_text_format.name = g_quark_from_static_string("text");
	449	ret = bt_register_format(&ctf_text_format);
	450	assert(!ret);
	451	}
	452
	453	/* TODO: finalize */