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[lttv.git] / lttv / lttv / batchtest.c

/* This file is part of the Linux Trace Toolkit viewer
 * Copyright (C) 2003-2004 Michel Dagenais
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
 * MA 02110-1301, USA.
 */

/* This module inserts a hook in the program main loop. This hook processes 
   all the events in the main tracefile while testing the speed and
   functionality of the state and stats computations. */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <inttypes.h>
#include <lttv/lttv.h>
#include <lttv/attribute.h>
#include <lttv/hook.h>
#include <lttv/option.h>
#include <lttv/module.h>
#include <lttv/state.h>
#include <lttv/traceset.h>
#include <lttv/traceset-process.h>

#define __UNUSED__ __attribute__((__unused__))

static LttvTraceset *traceset;

static LttvHooks
	*before_traceset,
	*after_traceset,
	*before_trace,
	*after_trace,
	*before_tracefile,
	*after_tracefile,
	//*before_event,
	//*after_event,
	*event_hook,
	*main_hooks;

static char *a_trace;

static char *a_dump_tracefiles;

static char *a_save_sample;

static int
	a_sample_interval,
	a_sample_number,
	a_seek_number,
	a_save_interval;

static gboolean
	a_trace_event,
	a_save_state_copy,
	a_test1,
	a_test2,
	a_test3,
	a_test4,
	a_test5,
	a_test6,
	a_test7,
	a_test8,
	a_test9,
	a_test10,
	a_test_all;

static GQuark QUARK_BLOCK_START,
				QUARK_BLOCK_END;

LttEventPosition *a_event_position;

typedef struct _save_state {
	guint count;
	FILE *fp;
	guint interval;
	guint position;
	guint size;
	LttTime *write_time;
	guint version;
} SaveState;


static void lttv_trace_option(void __UNUSED__ *hook_data)
{ 
#ifdef BABEL_CLEANUP
	LttTrace *trace;

	trace = ltt_trace_open(a_trace);
	if(trace == NULL) {
		g_critical("cannot open trace %s", a_trace);
	} else {
		lttv_traceset_add(traceset, lttv_trace_new(trace));
	}
#endif

	if(lttv_traceset_add_path(traceset, a_trace) < 0) {
			g_critical("cannot open trace %s", a_trace);
	}
}

static double get_time() 
{
	GTimeVal gt;

	g_get_current_time(&gt);
	return gt.tv_sec + (double)gt.tv_usec / (double)1000000.0;
}

static double run_one_test(LttvTracesetState *ts, LttTime start, LttTime end)
{
	double t0, t1;

	unsigned int i;

	//lttv_traceset_context_add_hooks(&ts->parent,
	//before_traceset, after_traceset, NULL, before_trace, after_trace,
	//NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
	lttv_process_traceset_begin(&ts->parent,
								before_traceset,
								before_trace,
								before_tracefile,
								event_hook,
								NULL);

	for(i = 0 ; i < lttv_traceset_number(traceset) ; i++) {
		((LttvTraceState *)(ts->parent.traces[i]))->save_interval =a_save_interval;
	}

	t0 = get_time();
	lttv_state_traceset_seek_time_closest(ts, start);
	//lttv_process_traceset(&ts->parent, end, G_MAXULONG);
	lttv_process_traceset_middle(&ts->parent,
									end,
									G_MAXULONG,
									NULL);
	t1 = get_time();

	//lttv_traceset_context_remove_hooks(&ts->parent,
	//before_traceset, after_traceset, NULL, before_trace, after_trace,
	//NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
	lttv_process_traceset_end(&ts->parent,
								after_traceset,
								after_trace,
								after_tracefile,
								event_hook,
								NULL);

	return t1 - t0;
}


gboolean trace_event(void __UNUSED__ *hook_data, void *call_data)
{
	LttvTracefileState *tfs = (LttvTracefileState *)call_data;

	guint nb_block, offset;

	guint64 tsc;

	LttTracefile *tf;
	LttEvent *e = ltt_tracefile_get_event(tfs->parent.tf);
	ltt_event_position(e, a_event_position);
	ltt_event_position_get(a_event_position, &tf, &nb_block, &offset, &tsc);
	fprintf(stderr, "Event %s %lu.%09lu [%u 0x%x tsc %" PRIu64 "]\n",
			g_quark_to_string(marker_get_info_from_id(tf->mdata,
						ltt_event_id(e))->name),
			tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec,
			nb_block, offset, tsc);
	return FALSE;
}

static LttTime count_previous_time = { 0, 0 };

gboolean count_event(void *hook_data, void __UNUSED__ *call_data)
{
	LttvTracefileState *tfs = (LttvTracefileState *)call_data;
	LttTracefile *tracefile = tfs->parent.tf;
	guint nb_block, offset;
	LttTracefile *tf_pos;
	guint64 tsc;
	LttEvent * event = ltt_tracefile_get_event(tracefile);
	LttTime time;
	guint *pcount = (guint *)hook_data;

	(*pcount)++;

	time = ltt_event_time(event);
	ltt_event_position(event, a_event_position);
	ltt_event_position_get(a_event_position, &tf_pos, &nb_block, &offset, &tsc);

	if(ltt_time_compare(time, count_previous_time) < 0) {
		g_warning("Time decreasing trace %s tracefile %s cpu %u position %u/0x%x",
	g_quark_to_string(ltt_trace_name(ltt_tracefile_get_trace(tracefile))),
	g_quark_to_string(ltt_tracefile_name(tracefile)),
	tfs->cpu, nb_block, offset);
		g_warning("last time %lu.%lu vs current %lu.%lu",
	count_previous_time.tv_sec, count_previous_time.tv_nsec,
	time.tv_sec, time.tv_nsec);
	}
	count_previous_time = time;



	return FALSE;
}


gboolean save_state_copy_event(void *hook_data, void *call_data)
{
	SaveState __UNUSED__ *save_state = (SaveState *)hook_data;

	LttvTracefileState *tfs = (LttvTracefileState *)call_data;

	LttvTraceState *ts = (LttvTraceState *)tfs->parent.t_context;

	LttEvent *e = ltt_tracefile_get_event(tfs->parent.tf);

	GString *filename;

	FILE *fp;

	if(ts->nb_event == 0 &&
			marker_get_info_from_id(tfs->parent.tf->mdata, e->event_id)->name
					== QUARK_BLOCK_START) {
		if(a_save_sample != NULL) {
			filename = g_string_new("");
			g_string_printf(filename, "%s.copy.%lu.%09lu.xml", a_save_sample,
					tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
			fp = fopen(filename->str, "w");
			if(fp == NULL) g_error("Cannot open %s", filename->str);
			g_string_free(filename, TRUE);
			lttv_state_write(ts, tfs->parent.timestamp, fp);
			fclose(fp);
		} //else lttv_state_write(ts, tfs->parent.timestamp, save_state->fp);
	}
	return FALSE;
}


gboolean save_state_event(void *hook_data, void *call_data)
{
	SaveState *save_state = (SaveState *)hook_data;

	LttvTracefileState *tfs = (LttvTracefileState *)call_data;

	LttvTraceState *ts = (LttvTraceState *)tfs->parent.t_context;

	GString *filename;

	FILE *fp;

	(save_state->count)++;
	if(save_state->count % save_state->interval == 0 &&
		 save_state->position < save_state->size) {
		if(a_save_sample != NULL) {
			filename = g_string_new("");
			g_string_printf(filename, "%s.%u.xml.%u", a_save_sample,
					save_state->position, save_state->version);
			fp = fopen(filename->str, "w");
			if(fp == NULL) g_error("Cannot open %s", filename->str);
			g_string_free(filename, TRUE);
			lttv_state_write(ts, tfs->parent.timestamp, fp);
			fclose(fp);
		} //else lttv_state_write(ts, tfs->parent.timestamp, save_state->fp);

		save_state->write_time[save_state->position] = tfs->parent.timestamp;
		save_state->position++;
	}
	return FALSE;
}


static void sanitize_name(gchar *name)
{
	while(*name != '\0') {
		if(*name == '/') *name = '_';
		name++;
	}

}


static void compute_tracefile(LttTracefile *tracefile, void *hook_data)
{
	GString *filename;
	guint nb_equal, nb_block, offset;
	guint64 tsc;
	FILE *fp;
	LttTime time, previous_time;
	LttEvent *event = ltt_tracefile_get_event(tracefile);
	//LttEventType *event_type;
	struct marker_info *minfo;
	int err;
	gchar mod_name[PATH_MAX];

	/* start_count is always initialized in this function _if_ there is always
	 * a block_start before a block_end.
	 */
	//long long unsigned cycle_count, start_count=0, delta_cycle;


	filename = g_string_new("");
	strcpy(mod_name, g_quark_to_string(ltt_tracefile_name(tracefile)));

	sanitize_name(mod_name);

	g_warning("test %s test", g_quark_to_string(ltt_tracefile_name(tracefile)));
	g_string_printf(filename, "%s.%s.%u.trace", a_dump_tracefiles,
			mod_name, ltt_tracefile_cpu(tracefile));
	fp = fopen(filename->str, "w");
	if(fp == NULL) g_error("Cannot open %s", filename->str);
	g_string_free(filename, TRUE);
	err = ltt_tracefile_seek_time(tracefile, ltt_time_zero);
	if(err) goto close;

	previous_time = ltt_time_zero;
	nb_equal = 0;

	do {
		LttTracefile *tf_pos;
		//event_type = ltt_event_eventtype(event);
		minfo = marker_get_info_from_id(tracefile->mdata,
							ltt_event_id(event));
		time = ltt_event_time(event);
		ltt_event_position(event, a_event_position);
		ltt_event_position_get(a_event_position, &tf_pos, &nb_block, &offset, &tsc);
		//fprintf(fp,"%s.%s: %llu %lu.%09lu position %u/%u\n",
		fprintf(fp, "%s: %" PRIu64 " %lu.%09lu position %u/%u, tracefile %s\n",
			g_quark_to_string(minfo->name),
				tsc, (unsigned long)time.tv_sec,
				(unsigned long)time.tv_nsec,
				nb_block, offset,
				g_quark_to_string(ltt_tracefile_name(tracefile)));

		if(ltt_time_compare(time, previous_time) < 0) {
			g_warning("Time decreasing trace %s tracefile %s cpu %u position %u/0x%x",
				g_quark_to_string(ltt_trace_name(ltt_tracefile_get_trace(tracefile))),
				g_quark_to_string(ltt_tracefile_name(tracefile)),
				ltt_tracefile_cpu(tracefile), nb_block, offset);
			g_warning("last time %lu.%lu vs current %lu.%lu",
				previous_time.tv_sec, previous_time.tv_nsec,
				time.tv_sec, time.tv_nsec);
		}

#if 0 //FIXME
		if(ltt_eventtype_name(event_type) == QUARK_BLOCK_START) {
			start_count = cycle_count;
			start_time = time;
		}
		else if(ltt_eventtype_name(event_type) == QUARK_BLOCK_END) {
			delta_cycle = cycle_count - start_count;
			end_nsec_sec = (long long unsigned)time.tv_sec * (long long unsigned)1000000000;
			end_nsec_nsec = time.tv_nsec;
			end_nsec = end_nsec_sec + end_nsec_nsec;
			start_nsec = (long long unsigned)start_time.tv_sec * (long long unsigned)1000000000 + (long long unsigned)start_time.tv_nsec;
			delta_nsec = end_nsec - start_nsec;
			cycle_per_nsec = (double)delta_cycle / (double)delta_nsec;
			nsec_per_cycle = (double)delta_nsec / (double)delta_cycle;
			added_nsec = (double)delta_cycle * nsec_per_cycle;
			interpolated_nsec = start_nsec + added_nsec;
			added_nsec2 = (double)delta_cycle / cycle_per_nsec;
			interpolated_nsec2 = start_nsec + added_nsec2;

			fprintf(fp,"Time: start_count %llu, end_count %llu, delta_cycle %llu, start_nsec %llu, end_nsec_sec %llu, end_nsec_nsec %llu, end_nsec %llu, delta_nsec %llu, cycle_per_nsec %.25f, nsec_per_cycle %.25f, added_nsec %llu, added_nsec2 %llu, interpolated_nsec %llu, interpolated_nsec2 %llu\n", start_count, cycle_count, delta_cycle, start_nsec, end_nsec_sec, end_nsec_nsec, end_nsec, delta_nsec, cycle_per_nsec, nsec_per_cycle, added_nsec, added_nsec2, interpolated_nsec, interpolated_nsec2);
		}
		else {
#endif //0
			if(ltt_time_compare(time, previous_time) == 0)
				nb_equal++;
			else if(nb_equal > 0) {
				g_warning("Consecutive %d events with time %lu.%09lu",
						nb_equal + 1, previous_time.tv_sec, previous_time.tv_nsec);
				nb_equal = 0;
			}
			previous_time = time;
		//}
	} while((!ltt_tracefile_read(tracefile)));

close:
	fclose(fp);
}

// TODO mdenis: adapt to babeltrace
static gboolean process_traceset(void __UNUSED__ *hook_data, 
				void __UNUSED__ *call_data)
{
	GString *filename;
	LttvTracesetStats *tscs;

	LttvTracesetState *ts;

	LttvTracesetContext *tc;

	FILE *fp;

	double t;

	//guint count, nb_control, nb_tracefile, nb_block, nb_event;
	//guint i, j, count, nb_control, nb_tracefile, nb_block, nb_event, nb_equal;
	guint i, j, count;

	LttTime max_time = { G_MAXULONG, G_MAXULONG };

#ifdef BABEL_CLEANUP
	LttTrace *trace;

	a_event_position = ltt_event_position_new();

	GData **tracefiles_groups;

	struct compute_tracefile_group_args args;

	args.func = compute_tracefile;
	args.func_args = NULL;

	if(a_dump_tracefiles != NULL) {
		for(i = 0 ; i < lttv_traceset_number(traceset) ; i++) {
			trace = lttv_trace(lttv_traceset_get(traceset, i));
			tracefiles_groups = ltt_trace_get_tracefiles_groups(trace);

			g_datalist_foreach(tracefiles_groups,
					(GDataForeachFunc)compute_tracefile_group, &args);

		}
	}
#endif

	tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
	ts = &tscs->parent;
	tc = &tscs->parent.parent;

	lttv_context_init(tc, traceset);

	/* For each case compute and print the elapsed time.
	   The first case is simply to run through all events with a
	   simple counter. */

	if(a_test1 || a_test_all) {
		count = 0;
		lttv_hooks_add(event_hook, count_event, &count, LTTV_PRIO_DEFAULT);
		t = run_one_test(ts, ltt_time_zero, max_time);
		lttv_hooks_remove_data(event_hook, count_event, &count);
		g_message("Processing trace while counting events (%u events in %g seconds)",
			count, t);
	}

	/* Run through all events computing the state. */

	if(a_test2 || a_test_all) {
		lttv_state_add_event_hooks(ts);
		t = run_one_test(ts, ltt_time_zero, max_time);
		lttv_state_remove_event_hooks(ts);
		g_message("Processing trace while updating state (%g seconds)", t);
	}

	/* Run through all events computing the state and writing it out
	   periodically. */

	SaveState save_state;

	save_state.interval = a_sample_interval;
	save_state.size = a_sample_number;
	save_state.fp = stderr;
	save_state.write_time = g_new(LttTime, a_sample_number);


	if(a_test3 || a_test_all) {
		for(i = 0 ; i < 2 ; i++) {
			save_state.count = 0;
			save_state.position = 0;
			save_state.version = i;
			lttv_state_add_event_hooks(ts);
			lttv_hooks_add(event_hook, save_state_event, &save_state,
					LTTV_PRIO_DEFAULT);
			t = run_one_test(ts, ltt_time_zero, max_time);
			lttv_state_remove_event_hooks(ts);
			lttv_hooks_remove_data(event_hook, save_state_event, &save_state);
			g_warning("Processing while updating/writing state (%g seconds)", t);
		}
	}

	/* Run through all events computing the stats. */

	if(a_test4 || a_test_all) {
		if(lttv_profile_memory) {
			g_message("Memory summary before computing stats");
			g_mem_profile();
		}

		lttv_stats_add_event_hooks(tscs);
		t = run_one_test(ts, ltt_time_zero, max_time);
		lttv_stats_remove_event_hooks(tscs);
		g_message("Processing trace while counting stats (%g seconds)", t);

		if(lttv_profile_memory) {
			g_message("Memory summary after computing stats");
			g_mem_profile();
		}

		lttv_stats_sum_traceset(tscs, ltt_time_infinite);

		if(lttv_profile_memory) {
			g_message("Memory summary after summing stats");
			g_mem_profile();
		}

		lttv_context_fini(tc);
		lttv_context_init(tc, traceset);

		if(lttv_profile_memory) {
			g_message("Memory summary after cleaning up the stats");
			g_mem_profile();
		}
	}

	/* Run through all events computing the state and stats. */

	if(a_test5 || a_test_all) {
		if(lttv_profile_memory) {
			g_message("Memory summary before computing state and stats");
			g_mem_profile();
		}

		lttv_state_add_event_hooks(ts);
		lttv_stats_add_event_hooks(tscs);
		t = run_one_test(ts, ltt_time_zero, max_time);
		lttv_state_remove_event_hooks(ts);
		lttv_stats_remove_event_hooks(tscs);
		g_message("Processing trace while counting state and stats (%g seconds)", t);

		if(lttv_profile_memory) {
			g_message("Memory summary after computing and state and stats");
			g_mem_profile();
		}

		lttv_context_fini(tc);
		lttv_context_init(tc, traceset);

		if(lttv_profile_memory) {
			g_message("Memory summary after cleaning up the stats");
			g_mem_profile();
		}
	}

	/* Run through all events computing and saving the state. */

	if(a_trace_event) lttv_hooks_add(event_hook, trace_event, NULL,
			LTTV_PRIO_DEFAULT);

	if(a_test6 || a_test_all) {
		if(lttv_profile_memory) {
			g_message("Memory summary before computing and saving state");
			g_mem_profile();
		}

		lttv_state_add_event_hooks(ts);
		lttv_state_save_add_event_hooks(ts);
		if(a_save_state_copy)
				lttv_hooks_add(event_hook, save_state_copy_event, &save_state,
						LTTV_PRIO_DEFAULT);
		t = run_one_test(ts, ltt_time_zero, max_time);
		lttv_state_remove_event_hooks(ts);
		lttv_state_save_remove_event_hooks(ts);
		if(a_save_state_copy)
			lttv_hooks_remove_data(event_hook,save_state_copy_event, &save_state);

		g_message("Processing trace while updating/saving state (%g seconds)", t);

		if(lttv_profile_memory) {
			g_message("Memory summary after computing/saving state");
			g_mem_profile();
		}
	}

	/* Seek a few times to each saved position */

	if((a_test7 && a_test3) || a_test_all) {
		g_assert(a_seek_number >= 0);
		for(i = 0 ; i < (guint)a_seek_number ; i++) {
			gint reverse_j; /* just to make sure j is unsigned */
			for(reverse_j = save_state.position - 1 ; reverse_j >= 0 ; reverse_j--) {
				j = (guint)reverse_j;
				lttv_state_add_event_hooks(ts);
				t = run_one_test(ts, save_state.write_time[j],
						save_state.write_time[j]);
				lttv_state_remove_event_hooks(ts);
				g_message("Seeking to %lu.%lu (%g seconds)",
						save_state.write_time[j].tv_sec,
						save_state.write_time[j].tv_nsec, t);

				if(a_save_sample != NULL) {
					filename = g_string_new("");
					g_string_printf(filename, "%s.%d.xml.bak%d", a_save_sample, j, i);
					fp = fopen(filename->str, "w");
					if(fp == NULL) g_error("Cannot open %s", filename->str);
					g_string_free(filename, TRUE);
					lttv_state_write((LttvTraceState *)tc->traces[0],
							save_state.write_time[j], fp);
					fclose(fp);
				}
				//else lttv_state_write((LttvTraceState *)tc->traces[0],
				//		save_state.write_time[j], save_state.fp);
			}
		}
	}

	/* Seek at specified interval, using states computed in 6, making
	 * sure that there is no more than the number of events between
	 * state save interval to read before getting there.
	 */

	if((a_test8 && a_test6) || a_test_all) {
		g_message("Running test 8 : check save interval");
		LttTime time = tc->time_span.start_time;
		LttTime interval;
		interval.tv_sec = 0;
		interval.tv_nsec = 175674987;
		guint count;

		while(ltt_time_compare(time, tc->time_span.end_time) < 0) {
			//g_message("Seeking at time %u.%u", time.tv_sec, time.tv_nsec);
			lttv_process_traceset_seek_time(&ts->parent, ltt_time_zero);
			lttv_state_traceset_seek_time_closest(ts, time);
			/* We add no hook to the traceset, not necessary */
			count = lttv_process_traceset_middle(&ts->parent,
					time, G_MAXUINT, NULL);
			g_info("Number of events to jump over : %u", count);

			if(count > LTTV_STATE_SAVE_INTERVAL)
				g_warning("Oops! Save interval is %u and it took %u events to seek to a time %lu.%lu supposed to be closer from the last saved state.",
						LTTV_STATE_SAVE_INTERVAL, count, time.tv_sec, time.tv_nsec);
			time = ltt_time_add(time, interval);
		}

	}

	if(a_test9 || a_test_all) {
		double t0, t1;
		/* Run seek_forward and seek_backward test */
		guint count;
		LttvTracesetContext *tsc = &ts->parent;
		LttvTracesetContextPosition *saved_pos =
			lttv_traceset_context_position_new(tsc);
		g_message("Running test 9 : seek_forward and seek_backward");
		lttv_process_traceset_seek_time(tsc, ltt_time_zero);

		count = lttv_process_traceset_seek_n_forward(tsc, 500, NULL, NULL, NULL, NULL, NULL, NULL);
		g_assert(count == 500);
		lttv_traceset_context_position_save(tsc, saved_pos);
		t0 = get_time();
		count = lttv_process_traceset_seek_n_forward(tsc, 150000, NULL, NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek forward 150000 events in %g seconds", t1 - t0);
		g_assert(count == 150000);
		t0 = get_time();
		count = lttv_process_traceset_seek_n_backward(tsc, 150000,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek backward 150000 events in %g seconds", t1 - t0);
		g_assert(count == 150000);
		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos)) {
			g_warning("Problem with seek_n ! Positions differ. (1)");
		}

		lttv_process_traceset_seek_n_forward(tsc, 500, NULL, NULL, NULL, NULL, NULL, NULL);
		lttv_traceset_context_position_save(tsc, saved_pos);
		lttv_process_traceset_seek_n_forward(tsc, 15000, NULL, NULL, NULL, NULL, NULL, NULL);
		lttv_process_traceset_seek_n_backward(tsc, 15005,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		lttv_process_traceset_seek_n_forward(tsc, 5, NULL, NULL, NULL, NULL, NULL, NULL);
		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos)) {
			g_warning("Problem with seek_n ! Positions differ. (2)");
		}

		lttv_process_traceset_seek_time(tsc, ltt_time_infinite);

		count = lttv_process_traceset_seek_n_forward(tsc, 15000, NULL, NULL, NULL, NULL, NULL, NULL);
		if(count > 0)
			g_warning("Problem with seek_n ! Forward at end of traceset.");

		lttv_process_traceset_seek_time(tsc, ltt_time_infinite);

		lttv_traceset_context_position_save(tsc, saved_pos);
		t0 = get_time();
		lttv_process_traceset_seek_n_backward(tsc, 300,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek backward 300 events in %g seconds", t1 - t0);
		count = lttv_process_traceset_seek_n_forward(tsc, 299, NULL, NULL, NULL, NULL, NULL, NULL);
		count = lttv_process_traceset_seek_n_forward(tsc, 1, NULL, NULL, NULL, NULL, NULL, NULL);

		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos)) {
			g_warning("Problem with seek_n ! Positions differ. (4)");
		}

		lttv_traceset_context_position_save(tsc, saved_pos);
		t0 = get_time();
		lttv_process_traceset_seek_n_backward(tsc, 10,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek backward 10 events in %g seconds", t1 - t0);
		t0 = get_time();
		count = lttv_process_traceset_seek_n_forward(tsc, 10, NULL, NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek forward 10 events in %g seconds", t1 - t0);


		/* try a volountary error */
		lttv_process_traceset_seek_time(tsc, ltt_time_infinite);

		lttv_traceset_context_position_save(tsc, saved_pos);
		lttv_process_traceset_seek_n_backward(tsc, 301,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		count = lttv_process_traceset_seek_n_forward(tsc, 299, NULL, NULL, NULL, NULL, NULL, NULL);
		count = lttv_process_traceset_seek_n_forward(tsc, 1, NULL, NULL, NULL, NULL, NULL, NULL);

		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos) == 0) {
			g_warning("Problem with seek_n ! Positions _should_ differ. (5)");
		}

		/* Try a seek by closest time : Hint : try this one with and without states
		 * computed. */
		lttv_process_traceset_seek_time(tsc, ltt_time_zero);
		count = lttv_process_traceset_seek_n_forward(tsc, 200000, NULL, NULL, NULL, NULL, NULL, NULL);
		lttv_traceset_context_position_save(tsc, saved_pos);
		t0 = get_time();
		lttv_process_traceset_seek_n_backward(tsc, 100301,
				seek_back_default_offset,
				(seek_time_fct)lttv_state_traceset_seek_time_closest, NULL,
				NULL, NULL, NULL, NULL, NULL);
		t1 = get_time();
		g_message("Seek backward 100301 events (with seek closest) in %g seconds",
				t1 - t0);
		count = lttv_process_traceset_seek_n_forward(tsc, 100301, NULL, NULL, NULL, NULL, NULL, NULL);

		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos)) {
			g_warning("Problem with seek_n with state seek time! Positions differ. (6)");
		}

		lttv_traceset_context_position_destroy(saved_pos);
	}

	if(a_test10 || a_test_all) {
		g_message("Running test 10 : check seek traceset context position");
		LttvTracesetContext *tsc = &ts->parent;
		LttvTracesetContextPosition *saved_pos =
			lttv_traceset_context_position_new(tsc);

		lttv_process_traceset_seek_time(tsc, ltt_time_zero);
		lttv_process_traceset_seek_n_forward(tsc, 200000, NULL, NULL, NULL, NULL, NULL, NULL);
		lttv_traceset_context_position_save(tsc, saved_pos);
		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos) != 0)
			g_critical("Error in seek position. (1)");

		lttv_process_traceset_seek_time(tsc, ltt_time_infinite);
		lttv_process_traceset_seek_n_backward(tsc, 500,
				seek_back_default_offset, lttv_process_traceset_seek_time, NULL,
				NULL, NULL, NULL, NULL, NULL);
		lttv_traceset_context_position_save(tsc, saved_pos);

		if(lttv_traceset_context_ctx_pos_compare(tsc, saved_pos) != 0)
			g_critical("Error in seek position. (2)");

		lttv_traceset_context_position_destroy(saved_pos);
	}

	if(a_trace_event) lttv_hooks_remove_data(event_hook, trace_event, NULL);

	g_free(save_state.write_time);
	g_free(a_event_position);
	lttv_context_fini(tc);
	g_object_unref(tscs);

	if(lttv_profile_memory) {
		g_message("Memory summary at the end of batchtest");
		g_mem_profile();
	}

	g_info("BatchTest end process traceset");
	return 0;
}


static void init()
{
	LttvAttributeValue value;

	LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
	gboolean retval;

	g_info("Init batchtest.c");

	/* Init GQuarks */
	QUARK_BLOCK_START = g_quark_from_string("block_start");
	QUARK_BLOCK_END = g_quark_from_string("block_end");


	lttv_option_add("trace", 't',
			"add a trace to the trace set to analyse",
			"pathname of the directory containing the trace",
			LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);

	a_trace_event = FALSE;

	a_dump_tracefiles = NULL;
	lttv_option_add("dump-tracefiles", 'D',
			"Write event by event the content of tracefiles",
			"basename for the files where to dump events",
			LTTV_OPT_STRING, &a_dump_tracefiles, NULL, NULL);

	a_save_sample = NULL;
	lttv_option_add("save-sample", 's',
			"Save state samples to multiple files",
			"basename for the files containing the state samples",
			LTTV_OPT_STRING, &a_save_sample, NULL, NULL);

	a_save_state_copy = FALSE;
	lttv_option_add("save-state-copy", 'S', "Write the state saved for seeking",
			"", LTTV_OPT_NONE, &a_save_state_copy, NULL, NULL);

	a_save_interval = 100000;
	lttv_option_add("save-interval", 'i',
			"Interval between saving state",
			"number of events before a block start triggers saving state",
			LTTV_OPT_INT, &a_save_interval, NULL, NULL);

	a_sample_interval = 100000;
	lttv_option_add("sample-interval", 'S',
			"Interval between sampling state",
			"number of events before sampling and writing state",
			LTTV_OPT_INT, &a_sample_interval, NULL, NULL);

	a_sample_number = 20;
	lttv_option_add("sample-number", 'N',
			"Number of state samples",
			"maximum number",
			LTTV_OPT_INT, &a_sample_number, NULL, NULL);

	a_seek_number = 200;
	lttv_option_add("seek-number", 'K',
			"Number of seek",
			"number",
			LTTV_OPT_INT, &a_seek_number, NULL, NULL);

	a_test1 = FALSE;
	lttv_option_add("test1", '1', "Test just counting events", "",
			LTTV_OPT_NONE, &a_test1, NULL, NULL);

	a_test2 = FALSE;
	lttv_option_add("test2", '2', "Test computing the state", "",
			LTTV_OPT_NONE, &a_test2, NULL, NULL);

	a_test3 = FALSE;
	lttv_option_add("test3", '3', "Test computing the state, writing out a few",
			"", LTTV_OPT_NONE, &a_test3, NULL, NULL);

	a_test4 = FALSE;
	lttv_option_add("test4", '4', "Test computing the stats", "",
			LTTV_OPT_NONE, &a_test4, NULL, NULL);

	a_test5 = FALSE;
	lttv_option_add("test5", '5', "Test computing the state and stats", "",
			LTTV_OPT_NONE, &a_test5, NULL, NULL);

	a_test6 = FALSE;
	lttv_option_add("test6", '6', "Test computing and saving the state", "",
			LTTV_OPT_NONE, &a_test6, NULL, NULL);

	a_test7 = FALSE;
	lttv_option_add("test7", '7', "Test seeking to positions written out in 3",
			"", LTTV_OPT_NONE, &a_test7, NULL, NULL);

	a_test8 = FALSE;
	lttv_option_add("test8", '8', "Test seeking to positions using saved states computed at 6 : check if number of events fits",
			"", LTTV_OPT_NONE, &a_test8, NULL, NULL);

	a_test9 = FALSE;
	lttv_option_add("test9", '9', "Test seeking backward/forward positions",
			"", LTTV_OPT_NONE, &a_test9, NULL, NULL);

	a_test10 = FALSE;
	lttv_option_add("test10", ' ', "Test seeking traceset by position",
			"", LTTV_OPT_NONE, &a_test10, NULL, NULL);



	a_test_all = FALSE;
	lttv_option_add("testall", 'a', "Run all tests ", "",
			LTTV_OPT_NONE, &a_test_all, NULL, NULL);

	traceset = lttv_traceset_new();

	before_traceset = lttv_hooks_new();
	after_traceset = lttv_hooks_new();
	before_trace = lttv_hooks_new();
	after_trace = lttv_hooks_new();
	before_tracefile = lttv_hooks_new();
	after_tracefile = lttv_hooks_new();
	//before_event = lttv_hooks_new();
	//after_event = lttv_hooks_new();
	event_hook = lttv_hooks_new();


	retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = before_traceset;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = after_traceset;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = before_trace;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = after_trace;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = before_tracefile;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = after_tracefile;
	//retval= lttv_iattribute_find_by_path(attributes, "hooks/event/before",
	//		LTTV_POINTER, &value);
	//*(value.v_pointer) = before_event;
	//retval= lttv_iattribute_find_by_path(attributes, "hooks/event/after",
	//		LTTV_POINTER, &value);
	//*(value.v_pointer) = after_event;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/event",
			LTTV_POINTER, &value);
	g_assert(retval);
	*(value.v_pointer) = event_hook;
	retval= lttv_iattribute_find_by_path(attributes, "hooks/main/before",
			LTTV_POINTER, &value);
	g_assert(retval);
	g_assert((main_hooks = *(value.v_pointer)) != NULL);
	lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
}


static void destroy()
{
	guint i, nb;

	LttvTrace *trace;

	g_info("Destroy batchAnalysis.c");

	lttv_option_remove("trace");
	lttv_option_remove("dump-tracefiles");
	lttv_option_remove("save-sample");
	lttv_option_remove("save-state-copy");
	lttv_option_remove("sample-interval");
	lttv_option_remove("sample-number");
	lttv_option_remove("seek-number");
	lttv_option_remove("save-interval");
	lttv_option_remove("test1");
	lttv_option_remove("test2");
	lttv_option_remove("test3");
	lttv_option_remove("test4");
	lttv_option_remove("test5");
	lttv_option_remove("test6");
	lttv_option_remove("test7");
	lttv_option_remove("test8");
	lttv_option_remove("test9");
	lttv_option_remove("test10");
	lttv_option_remove("testall");

	lttv_hooks_destroy(before_traceset);
	lttv_hooks_destroy(after_traceset);
	lttv_hooks_destroy(before_trace);
	lttv_hooks_destroy(after_trace);
	lttv_hooks_destroy(before_tracefile);
	lttv_hooks_destroy(after_tracefile);
	//lttv_hooks_destroy(before_event);
	//lttv_hooks_destroy(after_event);
	lttv_hooks_destroy(event_hook);
	lttv_hooks_remove_data(main_hooks, process_traceset, NULL);

	nb = lttv_traceset_number(traceset);
	for(i = 0 ; i < nb ; i++) {
		trace = lttv_traceset_get(traceset, i);
		lttv_traceset_remove(traceset,i);
#ifdef BABEL_CLEANUP
		ltt_trace_close(lttv_trace(trace));
		lttv_trace_destroy(trace);
#endif
	}

	lttv_traceset_destroy(traceset);
}


LTTV_MODULE("batchtest", "Batch processing of a trace for tests", \
		"Run through a trace calling all the registered hooks for tests", \
		init, destroy, "state", "stats", "option" )