[lttv.git] / lttv / lttv / traceset-process.c

/* This file is part of the Linux Trace Toolkit viewer
 * Copyright (C) 2003-2004 Michel Dagenais
 * Copyright (C) 2012 Yannick Brosseau
 *
 * 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., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <lttv/traceset-process.h>
#include <lttv/traceset.h>
#include <lttv/event.h>
#include <babeltrace/context.h>
#include <babeltrace/iterator.h>
#include <babeltrace/trace-handle.h>
#include <babeltrace/ctf/events.h>
#include <babeltrace/ctf/iterator.h>

void lttv_process_traceset_begin(LttvTraceset *traceset,
		LttvHooks *before_traceset,
		LttvHooks *before_trace,
		LttvHooks *event)
{
	struct bt_iter_pos begin_pos;
	/* simply add hooks in context. _before hooks are called by add_hooks. */
	/* It calls all before_traceset, before_trace, and before_tracefile hooks. */
	lttv_traceset_add_hooks(traceset,
				before_traceset,
				before_trace,
				event);
	

	begin_pos.type = BT_SEEK_BEGIN;

	if(!traceset->iter) {
        traceset->iter = bt_ctf_iter_create(lttv_traceset_get_context(traceset),
                                        &begin_pos,
                                        NULL);
	}
}

guint lttv_process_traceset_middle(LttvTraceset *traceset,
					LttTime end,
					gulong nb_events,
					const LttvTracesetPosition *end_position)
{
	unsigned count = 0;
	gint last_ret = 0;
	LttvTracesetPosition *currentPos;
        
	struct bt_ctf_event *bt_event;
	
	LttvEvent event;
	LttTime endPositionTime;

	if(end_position) {
		endPositionTime = lttv_traceset_position_get_time(end_position);
	}
	while(TRUE) {

		if(last_ret == TRUE || ((count >= nb_events) && (nb_events != G_MAXULONG))) {
			break;
		}

		if((bt_event = bt_ctf_iter_read_event(traceset->iter)) != NULL) {

			LttTime time = ltt_time_from_uint64(bt_ctf_get_timestamp(bt_event));
			if(ltt_time_compare(end, time) <= 0) {
				break;
			}
			/*
			currentPos = lttv_traceset_create_current_position(traceset);
			if(lttv_traceset_position_compare(currentPos,end_position ) == 0){
				lttv_traceset_destroy_position(currentPos);
				break;
			}
			lttv_traceset_destroy_position(currentPos);
			*/
			if(end_position && (ltt_time_compare(endPositionTime, time) <= 0)) {
				break;
			}
			count++;

			event.bt_event = bt_event;

			/* Retreive the associated state */
			event.state = g_ptr_array_index(traceset->state_trace_handle_index,
							bt_ctf_event_get_handle_id(bt_event));
			
			last_ret = lttv_hooks_call(traceset->event_hooks, &event);

			if(bt_iter_next(bt_ctf_get_iter(traceset->iter)) < 0) {
				printf("ERROR NEXT\n");
				break;
			}
		} else {
			/* READ FAILED */
			
			break;
		
		}
	}
	return count;
}

void lttv_process_traceset_end(LttvTraceset *traceset,
			       LttvHooks *after_traceset,
			       LttvHooks *after_trace,	
			       LttvHooks *event)
{
	/* Remove hooks from context. _after hooks are called by remove_hooks. */
	/* It calls all after_traceset, after_trace, and after_tracefile hooks. */
	lttv_traceset_remove_hooks(traceset,
				   after_traceset,
				   after_trace,
				   event);

}


void lttv_traceset_add_hooks(LttvTraceset *traceset,
			     LttvHooks *before_traceset,
			     LttvHooks *before_trace,
			     LttvHooks *event)
{
	guint i, nb_trace;

	LttvTrace *trace;

	lttv_hooks_call(before_traceset, traceset);
	
	lttv_hooks_add_list(traceset->event_hooks, event);

	nb_trace = lttv_traceset_number(traceset);

	for(i = 0 ; i < nb_trace ; i++) {
		trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i);
		lttv_trace_add_hooks(trace,
					     before_trace,
					     event
					     );
	}
}
void lttv_traceset_remove_hooks(LttvTraceset *traceset,
				LttvHooks *after_traceset,
				LttvHooks *after_trace,
				LttvHooks *event)
{
	guint i, nb_trace;

	LttvTrace *trace;

	nb_trace = lttv_traceset_number(traceset);

	for(i = 0 ; i < nb_trace ; i++) {
		trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i);
		lttv_trace_remove_hooks(trace,
						after_trace,
						event);

	}

	lttv_hooks_remove_list(traceset->event_hooks, event);
	lttv_hooks_call(after_traceset, traceset);


}


void lttv_trace_add_hooks(LttvTrace *trace,
			  LttvHooks *before_trace,
			  LttvHooks *event)
{
	lttv_hooks_call(before_trace, trace);
}

void lttv_trace_remove_hooks(LttvTrace *trace,
			     LttvHooks *after_trace,
			     LttvHooks *event)

{
	lttv_hooks_call(after_trace, trace);
}

void lttv_process_traceset_seek_time(LttvTraceset *traceset, LttTime start)
{
        struct bt_iter_pos seekpos;
        int ret;
	if (traceset->iter == NULL) {
		g_warning("Iterator not valid in seek_time");
		return;
	}
        seekpos.type = BT_SEEK_TIME;
        seekpos.u.seek_time = ltt_time_to_uint64(start);

        ret = bt_iter_set_pos(bt_ctf_get_iter(traceset->iter), &seekpos);
        if(ret < 0) {
                printf("Seek by time error: %s,\n",strerror(-ret));
        }
}

guint lttv_process_traceset_seek_n_forward(LttvTraceset *traceset,
                guint n,
                check_handler *check,
                gboolean *stop_flag,
                LttvFilter *filter1,
                LttvFilter *filter2,
                LttvFilter *filter3,
                gpointer data)
{
        unsigned count = 0;
        while(count < n) {
		if(bt_iter_next(bt_ctf_get_iter(traceset->iter)) < 0) {
			printf("ERROR NEXT\n");
			break;
		}
		count++;
        }
      return count;  
}

guint lttv_process_traceset_seek_n_backward(LttvTraceset *ts,
                guint n,
                gdouble ratio,
                check_handler *check,
                gboolean *stop_flag,
                LttvFilter *filter1,
                LttvFilter *filter2,
                LttvFilter *filter3,
                gpointer data)
{
        guint i, count, ret;
        gint extraEvent = 0;
        guint64 initialTimeStamp, previousTimeStamp;
        LttvTracesetPosition *initialPos, *previousPos, *currentPos, beginPos;
        struct bt_iter_pos pos;
        beginPos.bt_pos = &pos;
        beginPos.iter = ts->iter;
        beginPos.bt_pos->type = BT_SEEK_BEGIN;
        beginPos.timestamp = G_MAXUINT64;
        beginPos.cpu_id = INT_MAX;
        /*Save initial position of the traceset*/
        initialPos = lttv_traceset_create_current_position (ts);
        
        /*Get the timespan of the initial position*/
        initialTimeStamp = lttv_traceset_position_get_timestamp(initialPos);
        /* 
         * Create a position before the initial timestamp according
         * to the ratio of nanosecond/event hopefully before the
         * the desired seek position
         */
        while(1){
		previousTimeStamp = initialTimeStamp - n*(guint)ceil(ratio);

		previousPos = lttv_traceset_create_time_position(ts,ltt_time_from_uint64(previousTimeStamp));
		if(initialTimeStamp == previousTimeStamp)
			break;
                
                currentPos = lttv_traceset_create_time_position(ts,ltt_time_from_uint64(previousTimeStamp));
                /*Corner case: When we are near the beginning of the trace and the previousTimeStamp is before
                        * the beginning of the trace. We have to seek to the first event.
                        */
                if((lttv_traceset_position_compare(currentPos,&beginPos ) == 0)){
                                lttv_traceset_seek_to_position(&beginPos);
                                break;
                        }
                /*move traceset position */
                lttv_state_traceset_seek_position(ts, previousPos);
                /* iterate to the initial position counting the number of event*/
                count = 0;
                do {
                        if((ret = lttv_traceset_position_compare(currentPos,initialPos)) == 1){       
				if(bt_iter_next(bt_ctf_get_iter(ts->iter)) == 0) {
					if(bt_ctf_iter_read_event(ts->iter) > 0) {
						lttv_traceset_destroy_position(currentPos);
						currentPos = lttv_traceset_create_current_position(ts);
						count++;
					} else  {
						break;
					}
					
				} else {

					//No more event available
					break;
				}
                        }
                }while(ret != 0);
                
                /*substract the desired number of event to the count*/
                extraEvent = count - n;
                if (extraEvent >= 0) {
                        //if the extraEvent is over 0 go back to previousPos and 
                        //move forward the value of extraEvent times
                        lttv_state_traceset_seek_position(ts, previousPos);
                        
                        for(i = 0 ; i < extraEvent ; i++){
                                if(bt_iter_next(bt_ctf_get_iter(ts->iter)) < 0){
                                        printf("ERROR NEXT\n");
                                        break;
                                }
                                
                        }
                        break; /* we successfully seeked backward */
                }
                else{ 
                        /* if the extraEvent is below 0 create a position before and start over*/  
			ratio = ratio * 16;
                }
                lttv_traceset_destroy_position(currentPos);
        }
        return 0;
}
Commit	Line	Data
7a4bdb54 YB	1	/* This file is part of the Linux Trace Toolkit viewer
	2	* Copyright (C) 2003-2004 Michel Dagenais
	3	* Copyright (C) 2012 Yannick Brosseau
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License Version 2 as
	7	* published by the Free Software Foundation;
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
	17	* MA 02111-1307, USA.
	18	*/
	19	#ifdef HAVE_CONFIG_H
	20	#include <config.h>
	21	#endif
	22
	23	#include <lttv/traceset-process.h>
	24	#include <lttv/traceset.h>
	25	#include <lttv/event.h>
	26	#include <babeltrace/context.h>
	27	#include <babeltrace/iterator.h>
9a366873	28	#include <babeltrace/trace-handle.h>
7a4bdb54 YB	29	#include <babeltrace/ctf/events.h>
	30	#include <babeltrace/ctf/iterator.h>
	31
	32	void lttv_process_traceset_begin(LttvTraceset *traceset,
	33	LttvHooks *before_traceset,
	34	LttvHooks *before_trace,
	35	LttvHooks *event)
	36	{
f1e5df2a	37	struct bt_iter_pos begin_pos;
7a4bdb54 YB	38	/* simply add hooks in context. _before hooks are called by add_hooks. */
	39	/* It calls all before_traceset, before_trace, and before_tracefile hooks. */
	40	lttv_traceset_add_hooks(traceset,
	41	before_traceset,
	42	before_trace,
	43	event);
	44
	45
f1e5df2a YB	46
	47	begin_pos.type = BT_SEEK_BEGIN;
	48
	49	if(!traceset->iter) {
	50	traceset->iter = bt_ctf_iter_create(lttv_traceset_get_context(traceset),
	51	&begin_pos,
	52	NULL);
	53	}
7a4bdb54 YB	54	}
	55
	56	guint lttv_process_traceset_middle(LttvTraceset *traceset,
9a366873 FD	57	LttTime end,
	58	gulong nb_events,
	59	const LttvTracesetPosition *end_position)
7a4bdb54	60	{
7a4bdb54	61	unsigned count = 0;
9a366873 FD	62	gint last_ret = 0;
	63	LttvTracesetPosition *currentPos;
	64
7a4bdb54 YB	65	struct bt_ctf_event *bt_event;
	66
	67	LttvEvent event;
13d35254 YB	68	LttTime endPositionTime;
	69
	70	if(end_position) {
	71	endPositionTime = lttv_traceset_position_get_time(end_position);
	72	}
7a4bdb54 YB	73	while(TRUE) {
7a4bdb54 YB	74
9a366873	75	if(last_ret == TRUE \|\| ((count >= nb_events) && (nb_events != G_MAXULONG))) {
7a4bdb54 YB	76	break;
	77	}
	78
	79	if((bt_event = bt_ctf_iter_read_event(traceset->iter)) != NULL) {
9a366873	80
762e15b0	81	LttTime time = ltt_time_from_uint64(bt_ctf_get_timestamp(bt_event));
9a366873 FD	82	if(ltt_time_compare(end, time) <= 0) {
	83	break;
	84	}
13d35254	85	/*
68573dd0	86	currentPos = lttv_traceset_create_current_position(traceset);
9a366873 FD	87	if(lttv_traceset_position_compare(currentPos,end_position ) == 0){
9a366873 FD	88	lttv_traceset_destroy_position(currentPos);
2dd99ee2 YB	89	break;
2dd99ee2 YB	90	}
9a366873	91	lttv_traceset_destroy_position(currentPos);
13d35254 YB	92	*/
	93	if(end_position && (ltt_time_compare(endPositionTime, time) <= 0)) {
	94	break;
	95	}
7a4bdb54 YB	96	count++;
	97
	98	event.bt_event = bt_event;
115c78c2 YB	99
	100	/* Retreive the associated state */
	101	event.state = g_ptr_array_index(traceset->state_trace_handle_index,
	102	bt_ctf_event_get_handle_id(bt_event));
7a4bdb54	103
9a366873	104	last_ret = lttv_hooks_call(traceset->event_hooks, &event);
7a4bdb54 YB	105
	106	if(bt_iter_next(bt_ctf_get_iter(traceset->iter)) < 0) {
	107	printf("ERROR NEXT\n");
	108	break;
	109	}
	110	} else {
	111	/* READ FAILED */
	112
	113	break;
	114
	115	}
	116	}
7a4bdb54 YB	117	return count;
	118	}
	119
	120	void lttv_process_traceset_end(LttvTraceset *traceset,
	121	LttvHooks *after_traceset,
	122	LttvHooks *after_trace,
	123	LttvHooks *event)
	124	{
	125	/* Remove hooks from context. _after hooks are called by remove_hooks. */
	126	/* It calls all after_traceset, after_trace, and after_tracefile hooks. */
	127	lttv_traceset_remove_hooks(traceset,
	128	after_traceset,
	129	after_trace,
	130	event);
	131
	132	}
	133
	134
	135	void lttv_traceset_add_hooks(LttvTraceset *traceset,
	136	LttvHooks *before_traceset,
	137	LttvHooks *before_trace,
	138	LttvHooks *event)
	139	{
7a4bdb54 YB	140	guint i, nb_trace;
	141
	142	LttvTrace *trace;
	143
	144	lttv_hooks_call(before_traceset, traceset);
	145
	146	lttv_hooks_add_list(traceset->event_hooks, event);
	147
	148	nb_trace = lttv_traceset_number(traceset);
	149
	150	for(i = 0 ; i < nb_trace ; i++) {
	151	trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i);
	152	lttv_trace_add_hooks(trace,
	153	before_trace,
	154	event
	155	);
	156	}
	157	}
	158	void lttv_traceset_remove_hooks(LttvTraceset *traceset,
	159	LttvHooks *after_traceset,
	160	LttvHooks *after_trace,
	161	LttvHooks *event)
	162	{
7a4bdb54 YB	163	guint i, nb_trace;
	164
	165	LttvTrace *trace;
	166
	167	nb_trace = lttv_traceset_number(traceset);
	168
	169	for(i = 0 ; i < nb_trace ; i++) {
	170	trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i);
	171	lttv_trace_remove_hooks(trace,
	172	after_trace,
	173	event);
	174
	175	}
	176
9a366873	177	lttv_hooks_remove_list(traceset->event_hooks, event);
7a4bdb54 YB	178	lttv_hooks_call(after_traceset, traceset);
	179
	180
	181	}
	182
	183
	184	void lttv_trace_add_hooks(LttvTrace *trace,
	185	LttvHooks *before_trace,
	186	LttvHooks *event)
	187	{
	188	lttv_hooks_call(before_trace, trace);
	189	}
	190
	191	void lttv_trace_remove_hooks(LttvTrace *trace,
	192	LttvHooks *after_trace,
	193	LttvHooks *event)
	194
	195	{
	196	lttv_hooks_call(after_trace, trace);
7a4bdb54 YB	197	}
	198
	199	void lttv_process_traceset_seek_time(LttvTraceset *traceset, LttTime start)
	200	{
7a4bdb54 YB	201	struct bt_iter_pos seekpos;
7a4bdb54 YB	202	int ret;
f1e5df2a YB	203	if (traceset->iter == NULL) {
	204	g_warning("Iterator not valid in seek_time");
	205	return;
	206	}
7a4bdb54 YB	207	seekpos.type = BT_SEEK_TIME;
7a4bdb54 YB	208	seekpos.u.seek_time = ltt_time_to_uint64(start);
f1e5df2a YB	209
f1e5df2a YB	210	ret = bt_iter_set_pos(bt_ctf_get_iter(traceset->iter), &seekpos);
7a4bdb54 YB	211	if(ret < 0) {
	212	printf("Seek by time error: %s,\n",strerror(-ret));
	213	}
9a366873 FD	214	}
	215
	216	guint lttv_process_traceset_seek_n_forward(LttvTraceset *traceset,
	217	guint n,
	218	check_handler *check,
	219	gboolean *stop_flag,
	220	LttvFilter *filter1,
	221	LttvFilter *filter2,
	222	LttvFilter *filter3,
	223	gpointer data)
	224	{
9a366873 FD	225	unsigned count = 0;
	226	while(count < n) {
	227	if(bt_iter_next(bt_ctf_get_iter(traceset->iter)) < 0) {
	228	printf("ERROR NEXT\n");
	229	break;
	230	}
	231	count++;
	232	}
	233	return count;
	234	}
	235
	236	guint lttv_process_traceset_seek_n_backward(LttvTraceset *ts,
	237	guint n,
	238	gdouble ratio,
	239	check_handler *check,
	240	gboolean *stop_flag,
	241	LttvFilter *filter1,
	242	LttvFilter *filter2,
	243	LttvFilter *filter3,
	244	gpointer data)
	245	{
	246	guint i, count, ret;
	247	gint extraEvent = 0;
	248	guint64 initialTimeStamp, previousTimeStamp;
88bf15f0 FD	249	LttvTracesetPosition initialPos, previousPos, *currentPos, beginPos;
	250	struct bt_iter_pos pos;
	251	beginPos.bt_pos = &pos;
	252	beginPos.iter = ts->iter;
	253	beginPos.bt_pos->type = BT_SEEK_BEGIN;
c73ce169 FD	254	beginPos.timestamp = G_MAXUINT64;
c73ce169 FD	255	beginPos.cpu_id = INT_MAX;
9a366873	256	/Save initial position of the traceset/
68573dd0	257	initialPos = lttv_traceset_create_current_position (ts);
9a366873 FD	258
	259	/Get the timespan of the initial position/
	260	initialTimeStamp = lttv_traceset_position_get_timestamp(initialPos);
	261	/*
	262	* Create a position before the initial timestamp according
68573dd0	263	* to the ratio of nanosecond/event hopefully before the
9a366873 FD	264	* the desired seek position
	265	*/
	266	while(1){
	267	previousTimeStamp = initialTimeStamp - n*(guint)ceil(ratio);
	268
	269	previousPos = lttv_traceset_create_time_position(ts,ltt_time_from_uint64(previousTimeStamp));
	270	if(initialTimeStamp == previousTimeStamp)
	271	break;
	272
	273	currentPos = lttv_traceset_create_time_position(ts,ltt_time_from_uint64(previousTimeStamp));
88bf15f0 FD	274	/*Corner case: When we are near the beginning of the trace and the previousTimeStamp is before
	275	* the beginning of the trace. We have to seek to the first event.
	276	*/
	277	if((lttv_traceset_position_compare(currentPos,&beginPos ) == 0)){
	278	lttv_traceset_seek_to_position(&beginPos);
	279	break;
	280	}
9a366873	281	/move traceset position /
58b4e4ae	282	lttv_state_traceset_seek_position(ts, previousPos);
9a366873 FD	283	/* iterate to the initial position counting the number of event*/
	284	count = 0;
	285	do {
	286	if((ret = lttv_traceset_position_compare(currentPos,initialPos)) == 1){
993046ef	287	if(bt_iter_next(bt_ctf_get_iter(ts->iter)) == 0) {
13d35254 YB	288	if(bt_ctf_iter_read_event(ts->iter) > 0) {
	289	lttv_traceset_destroy_position(currentPos);
	290	currentPos = lttv_traceset_create_current_position(ts);
	291	count++;
993046ef YB	292	} else {
	293	break;
	294	}
	295
	296	} else {
	297
	298	//No more event available
	299	break;
	300	}
9a366873 FD	301	}
9a366873 FD	302	}while(ret != 0);
88bf15f0	303
9a366873 FD	304	/substract the desired number of event to the count/
9a366873 FD	305	extraEvent = count - n;
88bf15f0	306	if (extraEvent >= 0) {
9a366873 FD	307	//if the extraEvent is over 0 go back to previousPos and
9a366873 FD	308	//move forward the value of extraEvent times
58b4e4ae	309	lttv_state_traceset_seek_position(ts, previousPos);
9a366873 FD	310
	311	for(i = 0 ; i < extraEvent ; i++){
	312	if(bt_iter_next(bt_ctf_get_iter(ts->iter)) < 0){
	313	printf("ERROR NEXT\n");
	314	break;
	315	}
	316
	317	}
	318	break; /* we successfully seeked backward */
	319	}
88bf15f0 FD	320	else{
	321	/* if the extraEvent is below 0 create a position before and start over*/
	322	ratio = ratio * 16;
9a366873	323	}
88bf15f0	324	lttv_traceset_destroy_position(currentPos);
9a366873 FD	325	}
9a366873 FD	326	return 0;
7a4bdb54	327	}