[babeltrace.git] / converter / babeltrace.c

/*
 * babeltrace.c
 *
 * Babeltrace Trace Converter
 *
 * 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.
 */

#define _GNU_SOURCE
#include <config.h>
#include <babeltrace/babeltrace.h>
#include <babeltrace/format.h>
#include <babeltrace/context.h>
#include <babeltrace/ctf/types.h>
#include <babeltrace/ctf/events.h>
#include <babeltrace/ctf-text/types.h>
#include <babeltrace/iterator.h>
#include <popt.h>
#include <errno.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <inttypes.h>
#include <fts.h>

#include <babeltrace/ctf-ir/metadata.h>	/* for clocks */

#define DEFAULT_FILE_ARRAY_SIZE	1
static char *opt_input_format;
static char *opt_output_format;

static const char *opt_input_path;
static const char *opt_output_path;

static struct format *fmt_read;

void strlower(char *str)
{
	while (*str) {
		*str = tolower(*str);
		str++;
	}
}

enum {
	OPT_NONE = 0,
	OPT_HELP,
	OPT_LIST,
	OPT_VERBOSE,
	OPT_DEBUG,
	OPT_NAMES,
	OPT_FIELDS,
	OPT_NO_DELTA,
	OPT_CLOCK_OFFSET,
	OPT_CLOCK_RAW,
	OPT_CLOCK_SECONDS,
	OPT_CLOCK_DATE,
	OPT_CLOCK_GMT,
	OPT_CLOCK_FORCE_CORRELATE,
};

static struct poptOption long_options[] = {
	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
	{ "input-format", 'i', POPT_ARG_STRING, &opt_input_format, OPT_NONE, NULL, NULL },
	{ "output-format", 'o', POPT_ARG_STRING, &opt_output_format, OPT_NONE, NULL, NULL },
	{ "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
	{ "list", 'l', POPT_ARG_NONE, NULL, OPT_LIST, NULL, NULL },
	{ "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
	{ "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
	{ "names", 'n', POPT_ARG_STRING, NULL, OPT_NAMES, NULL, NULL },
	{ "fields", 'f', POPT_ARG_STRING, NULL, OPT_FIELDS, NULL, NULL },
	{ "no-delta", 0, POPT_ARG_NONE, NULL, OPT_NO_DELTA, NULL, NULL },
	{ "clock-offset", 0, POPT_ARG_STRING, NULL, OPT_CLOCK_OFFSET, NULL, NULL },
	{ "clock-raw", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_RAW, NULL, NULL },
	{ "clock-seconds", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_SECONDS, NULL, NULL },
	{ "clock-date", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_DATE, NULL, NULL },
	{ "clock-gmt", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_GMT, NULL, NULL },
	{ "clock-force-correlate", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_FORCE_CORRELATE, NULL, NULL },
	{ NULL, 0, 0, NULL, 0, NULL, NULL },
};

static void list_formats(FILE *fp)
{
	fprintf(fp, "\n");
	bt_fprintf_format_list(fp);
}

static void usage(FILE *fp)
{
	fprintf(fp, "BabelTrace Trace Viewer and Converter %s\n\n", VERSION);
	fprintf(fp, "usage : babeltrace [OPTIONS] INPUT <OUTPUT>\n");
	fprintf(fp, "\n");
	fprintf(fp, "  INPUT                          Input trace path\n");
	fprintf(fp, "  OUTPUT                         Output trace path (default: stdout)\n");
	fprintf(fp, "\n");
	fprintf(fp, "  -i, --input-format FORMAT      Input trace format (default: ctf)\n");
	fprintf(fp, "  -o, --output-format FORMAT     Output trace format (default: text)\n");
	fprintf(fp, "\n");
	fprintf(fp, "  -h, --help                     This help message\n");
	fprintf(fp, "  -l, --list                     List available formats\n");
	fprintf(fp, "  -v, --verbose                  Verbose mode\n");
	fprintf(fp, "                                 (or set BABELTRACE_VERBOSE environment variable)\n");
	fprintf(fp, "  -d, --debug                    Debug mode\n");
	fprintf(fp, "                                 (or set BABELTRACE_DEBUG environment variable)\n");
	fprintf(fp, "      --no-delta                 Do not print time delta between consecutive events\n");
	fprintf(fp, "  -n, --names name1<,name2,...>  Print field names:\n");
	fprintf(fp, "                                     (payload OR args OR arg)\n");
	fprintf(fp, "                                     all, scope, header, (context OR ctx)\n");
	fprintf(fp, "                                        (payload active by default)\n");
	fprintf(fp, "  -f, --fields name1<,name2,...> Print additional fields:\n");
	fprintf(fp, "                                     all, trace, trace:domain, trace:procname,\n");
	fprintf(fp, "                                     trace:vpid, loglevel.\n");
	fprintf(fp, "      --clock-raw                Disregard internal clock offset (use raw value)\n");
	fprintf(fp, "      --clock-offset seconds     Clock offset in seconds\n");
	fprintf(fp, "      --clock-seconds            Print the timestamps as [sec.ns]\n");
	fprintf(fp, "                                 (default is: [hh:mm:ss.ns])\n");
	fprintf(fp, "      --clock-date               Print clock date\n");
	fprintf(fp, "      --clock-gmt                Print clock in GMT time zone (default: local time zone)\n");
	fprintf(fp, "      --clock-force-correlate    Assume that clocks are inherently correlated\n");
	fprintf(fp, "                                 across traces.\n");
	list_formats(fp);
	fprintf(fp, "\n");
}

static int get_names_args(poptContext *pc)
{
	char *str, *strlist, *strctx;

	opt_payload_field_names = 0;
	strlist = (char *) poptGetOptArg(*pc);
	if (!strlist) {
		return -EINVAL;
	}
	str = strtok_r(strlist, ",", &strctx);
	do {
		if (!strcmp(str, "all"))
			opt_all_field_names = 1;
		else if (!strcmp(str, "scope"))
			opt_scope_field_names = 1;
		else if (!strcmp(str, "context") || !strcmp(str, "ctx"))
			opt_context_field_names = 1;
		else if (!strcmp(str, "header"))
			opt_header_field_names = 1;
		else if (!strcmp(str, "payload") || !strcmp(str, "args") || !strcmp(str, "arg"))
			opt_payload_field_names = 1;
		else {
			fprintf(stderr, "[error] unknown field name type %s\n", str);
			return -EINVAL;
		}
	} while ((str = strtok_r(NULL, ",", &strctx)));
	return 0;
}

static int get_fields_args(poptContext *pc)
{
	char *str, *strlist, *strctx;

	strlist = (char *) poptGetOptArg(*pc);
	if (!strlist) {
		return -EINVAL;
	}
	str = strtok_r(strlist, ",", &strctx);
	do {
		if (!strcmp(str, "all"))
			opt_all_fields = 1;
		else if (!strcmp(str, "trace"))
			opt_trace_field = 1;
		else if (!strcmp(str, "trace:domain"))
			opt_trace_domain_field = 1;
		else if (!strcmp(str, "trace:procname"))
			opt_trace_procname_field = 1;
		else if (!strcmp(str, "trace:vpid"))
			opt_trace_vpid_field = 1;
		else if (!strcmp(str, "loglevel"))
			opt_loglevel_field = 1;
		else {
			fprintf(stderr, "[error] unknown field type %s\n", str);
			return -EINVAL;
		}
	} while ((str = strtok_r(NULL, ",", &strctx)));
	return 0;
}

/*
 * Return 0 if caller should continue, < 0 if caller should return
 * error, > 0 if caller should exit without reporting error.
 */
static int parse_options(int argc, char **argv)
{
	poptContext pc;
	int opt, ret = 0;

	if (argc == 1) {
		usage(stdout);
		return 1;	/* exit cleanly */
	}

	pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
	poptReadDefaultConfig(pc, 0);

	/* set default */
	opt_payload_field_names = 1;

	while ((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
		case OPT_HELP:
			usage(stdout);
			ret = 1;	/* exit cleanly */
			goto end;
		case OPT_LIST:
			list_formats(stdout);
			ret = 1;
			goto end;
		case OPT_VERBOSE:
			babeltrace_verbose = 1;
			break;
		case OPT_NAMES:
			if (get_names_args(&pc)) {
				ret = -EINVAL;
				goto end;
			}
			break;
		case OPT_FIELDS:
			if (get_fields_args(&pc)) {
				ret = -EINVAL;
				goto end;
			}
			break;
		case OPT_DEBUG:
			babeltrace_debug = 1;
			break;
		case OPT_NO_DELTA:
			opt_delta_field = 0;
			break;
		case OPT_CLOCK_RAW:
			opt_clock_raw = 1;
			break;
		case OPT_CLOCK_OFFSET:
		{
			char *str, *endptr;

			str = poptGetOptArg(pc);
			if (!str) {
				fprintf(stderr, "[error] Missing --clock-offset argument\n");
				ret = -EINVAL;
				goto end;
			}
			errno = 0;
			opt_clock_offset = strtoull(str, &endptr, 0);
			if (*endptr != '\0' || str == endptr || errno != 0) {
				fprintf(stderr, "[error] Incorrect --clock-offset argument: %s\n", str);
				ret = -EINVAL;
				goto end;
			}
			break;
		}
		case OPT_CLOCK_SECONDS:
			opt_clock_seconds = 1;
			break;
		case OPT_CLOCK_DATE:
			opt_clock_date = 1;
			break;
		case OPT_CLOCK_GMT:
			opt_clock_gmt = 1;
			break;
		case OPT_CLOCK_FORCE_CORRELATE:
			opt_clock_force_correlate = 1;
			break;

		default:
			ret = -EINVAL;
			goto end;
		}
	}

	opt_input_path = poptGetArg(pc);
	if (!opt_input_path) {
		ret = -EINVAL;
		goto end;
	}
	opt_output_path = poptGetArg(pc);

end:
	if (pc) {
		poptFreeContext(pc);
	}
	return ret;
}


/*
 * bt_context_add_traces_recursive: Open a trace recursively
 *
 * Find each trace present in the subdirectory starting from the given
 * path, and add them to the context. The packet_seek parameter can be
 * NULL: this specify to use the default format packet_seek.
 *
 * Return: 0 on success, nonzero on failure.
 * Unable to open toplevel: failure.
 * Unable to open some subdirectory or file: warn and continue;
 */
int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path,
		const char *format_str,
		void (*packet_seek)(struct stream_pos *pos,
			size_t offset, int whence))
{
	FTS *tree;
	FTSENT *node;
	GArray *trace_ids;
	char lpath[PATH_MAX];
	char * const paths[2] = { lpath, NULL };
	int ret;

	/*
	 * Need to copy path, because fts_open can change it.
	 * It is the pointer array, not the strings, that are constant.
	 */
	strncpy(lpath, path, PATH_MAX);
	lpath[PATH_MAX - 1] = '\0';

	tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0);
	if (tree == NULL) {
		fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n",
				path);
		return -EINVAL;
	}

	trace_ids = g_array_new(FALSE, TRUE, sizeof(int));

	while ((node = fts_read(tree))) {
		int dirfd, metafd;

		if (!(node->fts_info & FTS_D))
			continue;

		dirfd = open(node->fts_accpath, 0);
		if (dirfd < 0) {
			fprintf(stderr, "[error] [Context] Unable to open trace "
				"directory file descriptor.\n");
			ret = dirfd;
			goto error;
		}
		metafd = openat(dirfd, "metadata", O_RDONLY);
		if (metafd < 0) {
			ret = close(dirfd);
			if (ret < 0) {
				perror("close");
				goto error;
			}
		} else {
			int trace_id;

			ret = close(metafd);
			if (ret < 0) {
				perror("close");
				goto error;
			}
			ret = close(dirfd);
			if (ret < 0) {
				perror("close");
				goto error;
			}

			trace_id = bt_context_add_trace(ctx,
				node->fts_accpath, format_str,
				packet_seek, NULL, NULL);
			if (trace_id < 0) {
				fprintf(stderr, "[error] [Context] opening trace \"%s\" from %s "
					"for reading.\n", node->fts_accpath, path);
				ret = trace_id;
				goto error;
			}
			g_array_append_val(trace_ids, trace_id);
		}
	}

	g_array_free(trace_ids, TRUE);
	return 0;

error:
	return ret;
}


int convert_trace(struct trace_descriptor *td_write,
		  struct bt_context *ctx)
{
	struct bt_ctf_iter *iter;
	struct ctf_text_stream_pos *sout;
	struct bt_iter_pos begin_pos;
	struct bt_ctf_event *ctf_event;
	int ret;

	sout = container_of(td_write, struct ctf_text_stream_pos,
			trace_descriptor);

	begin_pos.type = BT_SEEK_BEGIN;
	iter = bt_ctf_iter_create(ctx, &begin_pos, NULL);
	if (!iter) {
		ret = -1;
		goto error_iter;
	}
	while ((ctf_event = bt_ctf_iter_read_event(iter))) {
		ret = sout->parent.event_cb(&sout->parent, ctf_event->stream);
		if (ret) {
			fprintf(stderr, "[error] Writing event failed.\n");
			goto end;
		}
		ret = bt_iter_next(bt_ctf_get_iter(iter));
		if (ret < 0)
			goto end;
	}
	ret = 0;

end:
	bt_ctf_iter_destroy(iter);
error_iter:
	return ret;
}

int main(int argc, char **argv)
{
	int ret;
	struct format *fmt_write;
	struct trace_descriptor *td_write;
	struct bt_context *ctx;

	ret = parse_options(argc, argv);
	if (ret < 0) {
		fprintf(stderr, "Error parsing options.\n\n");
		usage(stderr);
		exit(EXIT_FAILURE);
	} else if (ret > 0) {
		exit(EXIT_SUCCESS);
	}
	printf_verbose("Verbose mode active.\n");
	printf_debug("Debug mode active.\n");

	if (opt_input_format)
		strlower(opt_input_format);
	if (opt_output_format)
		strlower(opt_output_format);

	printf_verbose("Converting from directory: %s\n", opt_input_path);
	printf_verbose("Converting from format: %s\n",
		opt_input_format ? : "ctf <default>");
	printf_verbose("Converting to directory: %s\n",
		opt_output_path ? : "<stdout>");
	printf_verbose("Converting to format: %s\n",
		opt_output_format ? : "text <default>");

	if (!opt_input_format)
		opt_input_format = "ctf";
	if (!opt_output_format)
		opt_output_format = "text";
	fmt_read = bt_lookup_format(g_quark_from_static_string(opt_input_format));
	if (!fmt_read) {
		fprintf(stderr, "[error] Format \"%s\" is not supported.\n\n",
			opt_input_format);
		exit(EXIT_FAILURE);
	}
	fmt_write = bt_lookup_format(g_quark_from_static_string(opt_output_format));
	if (!fmt_write) {
		fprintf(stderr, "[error] format \"%s\" is not supported.\n\n",
			opt_output_format);
		exit(EXIT_FAILURE);
	}

	ctx = bt_context_create();

	ret = bt_context_add_traces_recursive(ctx, opt_input_path,
			opt_input_format, NULL);
	if (ret) {
		fprintf(stderr, "[error] opening trace \"%s\" for reading.\n\n",
			opt_input_path);
		goto error_td_read;
	}

	td_write = fmt_write->open_trace(opt_output_path, O_RDWR, NULL, NULL);
	if (!td_write) {
		fprintf(stderr, "Error opening trace \"%s\" for writing.\n\n",
			opt_output_path ? : "<none>");
		goto error_td_write;
	}

	ret = convert_trace(td_write, ctx);
	if (ret) {
		fprintf(stderr, "Error printing trace.\n\n");
		goto error_copy_trace;
	}

	fmt_write->close_trace(td_write);

	bt_context_put(ctx);
	printf_verbose("finished converting. Output written to:\n%s\n",
			opt_output_path ? : "<stdout>");
	exit(EXIT_SUCCESS);

	/* Error handling */
error_copy_trace:
	fmt_write->close_trace(td_write);
error_td_write:
	bt_context_put(ctx);
error_td_read:
	exit(EXIT_FAILURE);
}
Commit	Line	Data
34ac0e6c MD	1	/*
	2	* babeltrace.c
	3	*
	4	* Babeltrace Trace Converter
	5	*
64fa3fec MD	6	* Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
	7	*
	8	* Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
34ac0e6c 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	*/
4c8bfb7e	20
20d24215	21	#define _GNU_SOURCE
00f7fbf0	22	#include <config.h>
95d36295	23	#include <babeltrace/babeltrace.h>
7fb21036	24	#include <babeltrace/format.h>
95d36295 JD	25	#include <babeltrace/context.h>
95d36295 JD	26	#include <babeltrace/ctf/types.h>
9843982d	27	#include <babeltrace/ctf/events.h>
31bdef5c	28	#include <babeltrace/ctf-text/types.h>
6204d33c	29	#include <babeltrace/iterator.h>
34ac0e6c MD	30	#include <popt.h>
	31	#include <errno.h>
	32	#include <stdlib.h>
bbefb8dd MD	33	#include <ctype.h>
	34	#include <sys/stat.h>
	35	#include <sys/types.h>
	36	#include <fcntl.h>
afb48eae	37	#include <unistd.h>
70accc14	38	#include <inttypes.h>
20d24215	39	#include <fts.h>
4c8bfb7e	40
a44bc4c9 MD	41	#include <babeltrace/ctf-ir/metadata.h> /* for clocks */
a44bc4c9 MD	42
afb48eae	43	#define DEFAULT_FILE_ARRAY_SIZE 1
bbefb8dd MD	44	static char *opt_input_format;
bbefb8dd MD	45	static char *opt_output_format;
34ac0e6c MD	46
	47	static const char *opt_input_path;
	48	static const char *opt_output_path;
	49
afb48eae AA	50	static struct format *fmt_read;
afb48eae AA	51
bbefb8dd MD	52	void strlower(char *str)
	53	{
	54	while (*str) {
	55	str = tolower(str);
	56	str++;
	57	}
	58	}
	59
34ac0e6c MD	60	enum {
	61	OPT_NONE = 0,
	62	OPT_HELP,
7fb21036	63	OPT_LIST,
34ac0e6c MD	64	OPT_VERBOSE,
34ac0e6c MD	65	OPT_DEBUG,
d63ca2cd	66	OPT_NAMES,
359d7456	67	OPT_FIELDS,
8d8ed9af	68	OPT_NO_DELTA,
11ac6674 MD	69	OPT_CLOCK_OFFSET,
	70	OPT_CLOCK_RAW,
	71	OPT_CLOCK_SECONDS,
	72	OPT_CLOCK_DATE,
	73	OPT_CLOCK_GMT,
82ace6d6	74	OPT_CLOCK_FORCE_CORRELATE,
34ac0e6c MD	75	};
	76
	77	static struct poptOption long_options[] = {
	78	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
	79	{ "input-format", 'i', POPT_ARG_STRING, &opt_input_format, OPT_NONE, NULL, NULL },
	80	{ "output-format", 'o', POPT_ARG_STRING, &opt_output_format, OPT_NONE, NULL, NULL },
	81	{ "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
7fb21036	82	{ "list", 'l', POPT_ARG_NONE, NULL, OPT_LIST, NULL, NULL },
34ac0e6c MD	83	{ "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
34ac0e6c MD	84	{ "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
cba1661c	85	{ "names", 'n', POPT_ARG_STRING, NULL, OPT_NAMES, NULL, NULL },
359d7456	86	{ "fields", 'f', POPT_ARG_STRING, NULL, OPT_FIELDS, NULL, NULL },
8d8ed9af	87	{ "no-delta", 0, POPT_ARG_NONE, NULL, OPT_NO_DELTA, NULL, NULL },
11ac6674 MD	88	{ "clock-offset", 0, POPT_ARG_STRING, NULL, OPT_CLOCK_OFFSET, NULL, NULL },
	89	{ "clock-raw", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_RAW, NULL, NULL },
	90	{ "clock-seconds", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_SECONDS, NULL, NULL },
	91	{ "clock-date", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_DATE, NULL, NULL },
	92	{ "clock-gmt", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_GMT, NULL, NULL },
82ace6d6	93	{ "clock-force-correlate", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_FORCE_CORRELATE, NULL, NULL },
34ac0e6c MD	94	{ NULL, 0, 0, NULL, 0, NULL, NULL },
	95	};
	96
7fb21036 MD	97	static void list_formats(FILE *fp)
	98	{
	99	fprintf(fp, "\n");
	100	bt_fprintf_format_list(fp);
	101	}
	102
34ac0e6c	103	static void usage(FILE *fp)
4c8bfb7e	104	{
4c15b06b	105	fprintf(fp, "BabelTrace Trace Viewer and Converter %s\n\n", VERSION);
4d5678b9	106	fprintf(fp, "usage : babeltrace [OPTIONS] INPUT <OUTPUT>\n");
34ac0e6c	107	fprintf(fp, "\n");
4d5678b9 MD	108	fprintf(fp, " INPUT Input trace path\n");
4d5678b9 MD	109	fprintf(fp, " OUTPUT Output trace path (default: stdout)\n");
34ac0e6c	110	fprintf(fp, "\n");
d2b8ea6b MD	111	fprintf(fp, " -i, --input-format FORMAT Input trace format (default: ctf)\n");
d2b8ea6b MD	112	fprintf(fp, " -o, --output-format FORMAT Output trace format (default: text)\n");
34ac0e6c	113	fprintf(fp, "\n");
4d5678b9 MD	114	fprintf(fp, " -h, --help This help message\n");
	115	fprintf(fp, " -l, --list List available formats\n");
	116	fprintf(fp, " -v, --verbose Verbose mode\n");
cba1661c	117	fprintf(fp, " (or set BABELTRACE_VERBOSE environment variable)\n");
4d5678b9	118	fprintf(fp, " -d, --debug Debug mode\n");
cba1661c	119	fprintf(fp, " (or set BABELTRACE_DEBUG environment variable)\n");
8d8ed9af	120	fprintf(fp, " --no-delta Do not print time delta between consecutive events\n");
359d7456	121	fprintf(fp, " -n, --names name1<,name2,...> Print field names:\n");
82662ad4 MD	122	fprintf(fp, " (payload OR args OR arg)\n");
82662ad4 MD	123	fprintf(fp, " all, scope, header, (context OR ctx)\n");
cba1661c	124	fprintf(fp, " (payload active by default)\n");
359d7456 MD	125	fprintf(fp, " -f, --fields name1<,name2,...> Print additional fields:\n");
	126	fprintf(fp, " all, trace, trace:domain, trace:procname,\n");
	127	fprintf(fp, " trace:vpid, loglevel.\n");
11ac6674 MD	128	fprintf(fp, " --clock-raw Disregard internal clock offset (use raw value)\n");
	129	fprintf(fp, " --clock-offset seconds Clock offset in seconds\n");
	130	fprintf(fp, " --clock-seconds Print the timestamps as [sec.ns]\n");
	131	fprintf(fp, " (default is: [hh:mm:ss.ns])\n");
	132	fprintf(fp, " --clock-date Print clock date\n");
	133	fprintf(fp, " --clock-gmt Print clock in GMT time zone (default: local time zone)\n");
82ace6d6 MD	134	fprintf(fp, " --clock-force-correlate Assume that clocks are inherently correlated\n");
82ace6d6 MD	135	fprintf(fp, " across traces.\n");
7fb21036	136	list_formats(fp);
34ac0e6c MD	137	fprintf(fp, "\n");
	138	}
	139
cba1661c MD	140	static int get_names_args(poptContext *pc)
	141	{
	142	char str, strlist, *strctx;
	143
	144	opt_payload_field_names = 0;
	145	strlist = (char ) poptGetOptArg(pc);
	146	if (!strlist) {
	147	return -EINVAL;
	148	}
	149	str = strtok_r(strlist, ",", &strctx);
	150	do {
	151	if (!strcmp(str, "all"))
	152	opt_all_field_names = 1;
	153	else if (!strcmp(str, "scope"))
	154	opt_scope_field_names = 1;
	155	else if (!strcmp(str, "context") \|\| !strcmp(str, "ctx"))
	156	opt_context_field_names = 1;
	157	else if (!strcmp(str, "header"))
	158	opt_header_field_names = 1;
	159	else if (!strcmp(str, "payload") \|\| !strcmp(str, "args") \|\| !strcmp(str, "arg"))
	160	opt_payload_field_names = 1;
359d7456 MD	161	else {
	162	fprintf(stderr, "[error] unknown field name type %s\n", str);
	163	return -EINVAL;
	164	}
	165	} while ((str = strtok_r(NULL, ",", &strctx)));
	166	return 0;
	167	}
	168
	169	static int get_fields_args(poptContext *pc)
	170	{
	171	char str, strlist, *strctx;
	172
359d7456 MD	173	strlist = (char ) poptGetOptArg(pc);
	174	if (!strlist) {
	175	return -EINVAL;
	176	}
	177	str = strtok_r(strlist, ",", &strctx);
	178	do {
	179	if (!strcmp(str, "all"))
	180	opt_all_fields = 1;
82662ad4	181	else if (!strcmp(str, "trace"))
359d7456	182	opt_trace_field = 1;
8c250d87	183	else if (!strcmp(str, "trace:domain"))
359d7456	184	opt_trace_domain_field = 1;
8c250d87	185	else if (!strcmp(str, "trace:procname"))
359d7456	186	opt_trace_procname_field = 1;
8c250d87	187	else if (!strcmp(str, "trace:vpid"))
359d7456	188	opt_trace_vpid_field = 1;
d86d62f8	189	else if (!strcmp(str, "loglevel"))
359d7456	190	opt_loglevel_field = 1;
cba1661c	191	else {
359d7456	192	fprintf(stderr, "[error] unknown field type %s\n", str);
cba1661c MD	193	return -EINVAL;
	194	}
	195	} while ((str = strtok_r(NULL, ",", &strctx)));
	196	return 0;
	197	}
	198
34ac0e6c MD	199	/*
	200	* Return 0 if caller should continue, < 0 if caller should return
	201	* error, > 0 if caller should exit without reporting error.
	202	*/
bbefb8dd	203	static int parse_options(int argc, char **argv)
34ac0e6c MD	204	{
	205	poptContext pc;
	206	int opt, ret = 0;
	207
0f980a35 MD	208	if (argc == 1) {
	209	usage(stdout);
	210	return 1; /* exit cleanly */
	211	}
	212
bbefb8dd	213	pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
34ac0e6c MD	214	poptReadDefaultConfig(pc, 0);
34ac0e6c MD	215
cba1661c MD	216	/* set default */
	217	opt_payload_field_names = 1;
	218
34ac0e6c MD	219	while ((opt = poptGetNextOpt(pc)) != -1) {
	220	switch (opt) {
	221	case OPT_HELP:
7fb21036	222	usage(stdout);
34ac0e6c MD	223	ret = 1; /* exit cleanly */
34ac0e6c MD	224	goto end;
7fb21036 MD	225	case OPT_LIST:
	226	list_formats(stdout);
	227	ret = 1;
	228	goto end;
34ac0e6c MD	229	case OPT_VERBOSE:
	230	babeltrace_verbose = 1;
	231	break;
cba1661c MD	232	case OPT_NAMES:
	233	if (get_names_args(&pc)) {
	234	ret = -EINVAL;
	235	goto end;
	236	}
	237	break;
359d7456 MD	238	case OPT_FIELDS:
	239	if (get_fields_args(&pc)) {
	240	ret = -EINVAL;
	241	goto end;
	242	}
	243	break;
34ac0e6c MD	244	case OPT_DEBUG:
	245	babeltrace_debug = 1;
	246	break;
8d8ed9af	247	case OPT_NO_DELTA:
359d7456	248	opt_delta_field = 0;
8d8ed9af	249	break;
11ac6674 MD	250	case OPT_CLOCK_RAW:
	251	opt_clock_raw = 1;
	252	break;
	253	case OPT_CLOCK_OFFSET:
	254	{
	255	char str, endptr;
	256
	257	str = poptGetOptArg(pc);
	258	if (!str) {
	259	fprintf(stderr, "[error] Missing --clock-offset argument\n");
	260	ret = -EINVAL;
	261	goto end;
	262	}
	263	errno = 0;
	264	opt_clock_offset = strtoull(str, &endptr, 0);
	265	if (*endptr != '\0' \|\| str == endptr \|\| errno != 0) {
	266	fprintf(stderr, "[error] Incorrect --clock-offset argument: %s\n", str);
	267	ret = -EINVAL;
	268	goto end;
	269	}
	270	break;
	271	}
	272	case OPT_CLOCK_SECONDS:
	273	opt_clock_seconds = 1;
	274	break;
	275	case OPT_CLOCK_DATE:
	276	opt_clock_date = 1;
	277	break;
	278	case OPT_CLOCK_GMT:
	279	opt_clock_gmt = 1;
	280	break;
82ace6d6 MD	281	case OPT_CLOCK_FORCE_CORRELATE:
	282	opt_clock_force_correlate = 1;
	283	break;
11ac6674	284
34ac0e6c MD	285	default:
	286	ret = -EINVAL;
	287	goto end;
	288	}
	289	}
	290
	291	opt_input_path = poptGetArg(pc);
	292	if (!opt_input_path) {
	293	ret = -EINVAL;
	294	goto end;
	295	}
	296	opt_output_path = poptGetArg(pc);
cba1661c	297
34ac0e6c MD	298	end:
	299	if (pc) {
	300	poptFreeContext(pc);
	301	}
	302	return ret;
	303	}
	304
afb48eae	305
20d24215 YB	306	/*
	307	* bt_context_add_traces_recursive: Open a trace recursively
	308	*
	309	* Find each trace present in the subdirectory starting from the given
613f532b MD	310	* path, and add them to the context. The packet_seek parameter can be
613f532b MD	311	* NULL: this specify to use the default format packet_seek.
20d24215 YB	312	*
	313	* Return: 0 on success, nonzero on failure.
	314	* Unable to open toplevel: failure.
	315	* Unable to open some subdirectory or file: warn and continue;
	316	*/
	317	int bt_context_add_traces_recursive(struct bt_context ctx, const char path,
613f532b MD	318	const char *format_str,
	319	void (packet_seek)(struct stream_pos pos,
	320	size_t offset, int whence))
20d24215 YB	321	{
	322	FTS *tree;
	323	FTSENT *node;
	324	GArray *trace_ids;
	325	char lpath[PATH_MAX];
	326	char * const paths[2] = { lpath, NULL };
	327	int ret;
	328
	329	/*
	330	* Need to copy path, because fts_open can change it.
	331	* It is the pointer array, not the strings, that are constant.
	332	*/
	333	strncpy(lpath, path, PATH_MAX);
	334	lpath[PATH_MAX - 1] = '\0';
	335
	336	tree = fts_open(paths, FTS_NOCHDIR \| FTS_LOGICAL, 0);
	337	if (tree == NULL) {
	338	fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n",
	339	path);
	340	return -EINVAL;
	341	}
	342
	343	trace_ids = g_array_new(FALSE, TRUE, sizeof(int));
	344
	345	while ((node = fts_read(tree))) {
	346	int dirfd, metafd;
	347
	348	if (!(node->fts_info & FTS_D))
	349	continue;
	350
	351	dirfd = open(node->fts_accpath, 0);
	352	if (dirfd < 0) {
	353	fprintf(stderr, "[error] [Context] Unable to open trace "
	354	"directory file descriptor.\n");
	355	ret = dirfd;
	356	goto error;
	357	}
	358	metafd = openat(dirfd, "metadata", O_RDONLY);
	359	if (metafd < 0) {
	360	ret = close(dirfd);
	361	if (ret < 0) {
	362	perror("close");
	363	goto error;
	364	}
	365	} else {
	366	int trace_id;
	367
	368	ret = close(metafd);
	369	if (ret < 0) {
	370	perror("close");
	371	goto error;
	372	}
	373	ret = close(dirfd);
	374	if (ret < 0) {
	375	perror("close");
	376	goto error;
	377	}
	378
	379	trace_id = bt_context_add_trace(ctx,
613f532b	380	node->fts_accpath, format_str,
0d4c669f	381	packet_seek, NULL, NULL);
20d24215 YB	382	if (trace_id < 0) {
	383	fprintf(stderr, "[error] [Context] opening trace \"%s\" from %s "
	384	"for reading.\n", node->fts_accpath, path);
	385	ret = trace_id;
	386	goto error;
	387	}
	388	g_array_append_val(trace_ids, trace_id);
	389	}
	390	}
	391
	392	g_array_free(trace_ids, TRUE);
	393	return 0;
	394
	395	error:
	396	return ret;
	397	}
a44bc4c9	398
a44bc4c9	399
afb48eae	400
95d36295 JD	401	int convert_trace(struct trace_descriptor *td_write,
	402	struct bt_context *ctx)
	403	{
e4195791	404	struct bt_ctf_iter *iter;
95d36295	405	struct ctf_text_stream_pos *sout;
e8c92a62	406	struct bt_iter_pos begin_pos;
9843982d	407	struct bt_ctf_event *ctf_event;
95d36295 JD	408	int ret;
	409
	410	sout = container_of(td_write, struct ctf_text_stream_pos,
	411	trace_descriptor);
	412
	413	begin_pos.type = BT_SEEK_BEGIN;
e4195791	414	iter = bt_ctf_iter_create(ctx, &begin_pos, NULL);
95d36295 JD	415	if (!iter) {
	416	ret = -1;
	417	goto error_iter;
	418	}
e4195791	419	while ((ctf_event = bt_ctf_iter_read_event(iter))) {
9843982d	420	ret = sout->parent.event_cb(&sout->parent, ctf_event->stream);
95d36295	421	if (ret) {
3394d22e	422	fprintf(stderr, "[error] Writing event failed.\n");
95d36295 JD	423	goto end;
95d36295 JD	424	}
e4195791	425	ret = bt_iter_next(bt_ctf_get_iter(iter));
95d36295 JD	426	if (ret < 0)
	427	goto end;
	428	}
	429	ret = 0;
	430
	431	end:
e4195791	432	bt_ctf_iter_destroy(iter);
95d36295 JD	433	error_iter:
	434	return ret;
	435	}
	436
bbefb8dd	437	int main(int argc, char **argv)
34ac0e6c MD	438	{
34ac0e6c MD	439	int ret;
afb48eae AA	440	struct format *fmt_write;
afb48eae AA	441	struct trace_descriptor *td_write;
95d36295	442	struct bt_context *ctx;
34ac0e6c MD	443
	444	ret = parse_options(argc, argv);
	445	if (ret < 0) {
3394d22e MD	446	fprintf(stderr, "Error parsing options.\n\n");
3394d22e MD	447	usage(stderr);
34ac0e6c MD	448	exit(EXIT_FAILURE);
	449	} else if (ret > 0) {
	450	exit(EXIT_SUCCESS);
	451	}
	452	printf_verbose("Verbose mode active.\n");
	453	printf_debug("Debug mode active.\n");
	454
bbefb8dd MD	455	if (opt_input_format)
	456	strlower(opt_input_format);
	457	if (opt_output_format)
	458	strlower(opt_output_format);
	459
afb48eae	460	printf_verbose("Converting from directory: %s\n", opt_input_path);
34ac0e6c	461	printf_verbose("Converting from format: %s\n",
b61922b5	462	opt_input_format ? : "ctf <default>");
afb48eae	463	printf_verbose("Converting to directory: %s\n",
478b6389	464	opt_output_path ? : "<stdout>");
34ac0e6c	465	printf_verbose("Converting to format: %s\n",
b61922b5	466	opt_output_format ? : "text <default>");
bbefb8dd	467
b61922b5 MD	468	if (!opt_input_format)
	469	opt_input_format = "ctf";
	470	if (!opt_output_format)
	471	opt_output_format = "text";
bbefb8dd MD	472	fmt_read = bt_lookup_format(g_quark_from_static_string(opt_input_format));
bbefb8dd MD	473	if (!fmt_read) {
3394d22e	474	fprintf(stderr, "[error] Format \"%s\" is not supported.\n\n",
bbefb8dd MD	475	opt_input_format);
	476	exit(EXIT_FAILURE);
	477	}
bbefb8dd MD	478	fmt_write = bt_lookup_format(g_quark_from_static_string(opt_output_format));
bbefb8dd MD	479	if (!fmt_write) {
3394d22e	480	fprintf(stderr, "[error] format \"%s\" is not supported.\n\n",
bbefb8dd MD	481	opt_output_format);
	482	exit(EXIT_FAILURE);
	483	}
	484
6cba487f MD	485	ctx = bt_context_create();
6cba487f MD	486
e669e45e	487	ret = bt_context_add_traces_recursive(ctx, opt_input_path,
613f532b	488	opt_input_format, NULL);
6cba487f	489	if (ret) {
3394d22e	490	fprintf(stderr, "[error] opening trace \"%s\" for reading.\n\n",
bbefb8dd MD	491	opt_input_path);
	492	goto error_td_read;
	493	}
6cba487f	494
5b80ddfb	495	td_write = fmt_write->open_trace(opt_output_path, O_RDWR, NULL, NULL);
bbefb8dd	496	if (!td_write) {
3394d22e	497	fprintf(stderr, "Error opening trace \"%s\" for writing.\n\n",
b61922b5	498	opt_output_path ? : "<none>");
bbefb8dd MD	499	goto error_td_write;
bbefb8dd MD	500	}
847bf71a	501
95d36295	502	ret = convert_trace(td_write, ctx);
46322b33	503	if (ret) {
3394d22e	504	fprintf(stderr, "Error printing trace.\n\n");
46322b33 MD	505	goto error_copy_trace;
46322b33 MD	506	}
847bf71a	507
bbefb8dd	508	fmt_write->close_trace(td_write);
6cba487f MD	509
6cba487f MD	510	bt_context_put(ctx);
afb48eae AA	511	printf_verbose("finished converting. Output written to:\n%s\n",
afb48eae AA	512	opt_output_path ? : "<stdout>");
bbefb8dd	513	exit(EXIT_SUCCESS);
34ac0e6c	514
bbefb8dd	515	/* Error handling */
46322b33	516	error_copy_trace:
bbefb8dd MD	517	fmt_write->close_trace(td_write);
bbefb8dd MD	518	error_td_write:
6cba487f	519	bt_context_put(ctx);
bbefb8dd MD	520	error_td_read:
bbefb8dd MD	521	exit(EXIT_FAILURE);
4c8bfb7e	522	}