1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Xiangxiu Yang, Mathieu Desnoyers
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
24 #include <sys/types.h>
36 #include "ltt-private.h"
37 #include <ltt/trace.h>
38 #include <ltt/facility.h>
39 #include <ltt/event.h>
41 #include <ltt/ltt-types.h>
43 #define DIR_NAME_SIZE 256
44 #define __UNUSED__ __attribute__((__unused__))
46 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
47 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
50 /* obtain the time of an event */
52 static inline LttTime
getEventTime(LttTracefile
* tf
);
55 /* set the offset of the fields belonging to the event,
56 need the information of the archecture */
57 void setFieldsOffset(LttTracefile
*tf
,LttEventType
*evT
,void *evD
,LttTrace
*t
);
59 /* get the size of the field type according to the archtecture's
60 size and endian type(info of the archecture) */
61 static inline gint
getFieldtypeSize(LttTracefile
* tf
,
62 LttEventType
* evT
, gint offsetRoot
,
63 gint offsetParent
, LttField
*fld
, void *evD
, LttTrace
* t
);
65 /* read a fixed size or a block information from the file (fd) */
66 int readFile(int fd
, void * buf
, size_t size
, char * mesg
);
67 int readBlock(LttTracefile
* tf
, int whichBlock
);
69 /* calculate cycles per nsec for current block */
70 void getCyclePerNsec(LttTracefile
* t
);
72 /* reinitialize the info of the block which is already in the buffer */
73 void updateTracefile(LttTracefile
* tf
);
75 /* go to the next event */
76 int skipEvent(LttTracefile
* t
);
79 /* Functions to parse system.xml file (using glib xml parser) */
80 static void parser_start_element (GMarkupParseContext __UNUSED__
*context
,
81 const gchar
*element_name
,
82 const gchar
**attribute_names
,
83 const gchar
**attribute_values
,
88 LttSystemDescription
* des
= (LttSystemDescription
* )user_data
;
89 if(strcmp("system", element_name
)){
90 *error
= g_error_new(G_MARKUP_ERROR
,
92 "This is not system.xml file");
96 while(attribute_names
[i
]){
97 if(strcmp("node_name", attribute_names
[i
])==0){
98 des
->node_name
= g_strdup(attribute_values
[i
]);
99 }else if(strcmp("domainname", attribute_names
[i
])==0){
100 des
->domain_name
= g_strdup(attribute_values
[i
]);
101 }else if(strcmp("cpu", attribute_names
[i
])==0){
102 des
->nb_cpu
= atoi(attribute_values
[i
]);
103 }else if(strcmp("arch_size", attribute_names
[i
])==0){
104 if(strcmp(attribute_values
[i
],"LP32") == 0) des
->size
= LTT_LP32
;
105 else if(strcmp(attribute_values
[i
],"ILP32") == 0) des
->size
= LTT_ILP32
;
106 else if(strcmp(attribute_values
[i
],"LP64") == 0) des
->size
= LTT_LP64
;
107 else if(strcmp(attribute_values
[i
],"ILP64") == 0) des
->size
= LTT_ILP64
;
108 else if(strcmp(attribute_values
[i
],"UNKNOWN") == 0) des
->size
= LTT_UNKNOWN
;
109 }else if(strcmp("endian", attribute_names
[i
])==0){
110 if(strcmp(attribute_values
[i
],"LITTLE_ENDIAN") == 0)
111 des
->endian
= LTT_LITTLE_ENDIAN
;
112 else if(strcmp(attribute_values
[i
],"BIG_ENDIAN") == 0)
113 des
->endian
= LTT_BIG_ENDIAN
;
114 }else if(strcmp("kernel_name", attribute_names
[i
])==0){
115 des
->kernel_name
= g_strdup(attribute_values
[i
]);
116 }else if(strcmp("kernel_release", attribute_names
[i
])==0){
117 des
->kernel_release
= g_strdup(attribute_values
[i
]);
118 }else if(strcmp("kernel_version", attribute_names
[i
])==0){
119 des
->kernel_version
= g_strdup(attribute_values
[i
]);
120 }else if(strcmp("machine", attribute_names
[i
])==0){
121 des
->machine
= g_strdup(attribute_values
[i
]);
122 }else if(strcmp("processor", attribute_names
[i
])==0){
123 des
->processor
= g_strdup(attribute_values
[i
]);
124 }else if(strcmp("hardware_platform", attribute_names
[i
])==0){
125 des
->hardware_platform
= g_strdup(attribute_values
[i
]);
126 }else if(strcmp("operating_system", attribute_names
[i
])==0){
127 des
->operating_system
= g_strdup(attribute_values
[i
]);
128 }else if(strcmp("ltt_major_version", attribute_names
[i
])==0){
129 des
->ltt_major_version
= atoi(attribute_values
[i
]);
130 }else if(strcmp("ltt_minor_version", attribute_names
[i
])==0){
131 des
->ltt_minor_version
= atoi(attribute_values
[i
]);
132 }else if(strcmp("ltt_block_size", attribute_names
[i
])==0){
133 des
->ltt_block_size
= atoi(attribute_values
[i
]);
135 *error
= g_error_new(G_MARKUP_ERROR
,
137 "Not a valid attribute");
144 static void parser_characters (GMarkupParseContext __UNUSED__
*context
,
146 gsize __UNUSED__ text_len
,
148 GError __UNUSED__
**error
)
150 LttSystemDescription
* des
= (LttSystemDescription
* )user_data
;
151 des
->description
= g_strdup(text
);
155 /*****************************************************************************
157 * ltt_tracefile_open : open a trace file, construct a LttTracefile
159 * t : the trace containing the tracefile
160 * fileName : path name of the trace file
162 * : a pointer to a tracefile
163 ****************************************************************************/
165 LttTracefile
* ltt_tracefile_open(LttTrace
* t
, char * fileName
)
168 struct stat lTDFStat
; /* Trace data file status */
170 tf
= g_new(LttTracefile
, 1);
173 tf
->name
= g_strdup(fileName
);
175 tf
->fd
= open(fileName
, O_RDONLY
, 0);
177 g_warning("Unable to open input data file %s\n", fileName
);
183 // Get the file's status
184 if(fstat(tf
->fd
, &lTDFStat
) < 0){
185 g_warning("Unable to get the status of the input data file %s\n", fileName
);
192 // Is the file large enough to contain a trace
193 if(lTDFStat
.st_size
< (off_t
)(sizeof(BlockStart
) + EVENT_HEADER_SIZE
)){
194 g_print("The input data file %s does not contain a trace\n", fileName
);
201 //store the size of the file
202 tf
->file_size
= lTDFStat
.st_size
;
203 tf
->block_size
= t
->system_description
->ltt_block_size
;
204 tf
->block_number
= tf
->file_size
/ tf
->block_size
;
207 //allocate memory to contain the info of a block
208 tf
->buffer
= (void *) g_new(char, t
->system_description
->ltt_block_size
);
210 //read the first block
211 if(readBlock(tf
,1)) exit(1);
217 /*****************************************************************************
218 *Open control and per cpu tracefiles
219 ****************************************************************************/
221 void ltt_tracefile_open_cpu(LttTrace
*t
, char * tracefile_name
)
224 tf
= ltt_tracefile_open(t
,tracefile_name
);
226 t
->per_cpu_tracefile_number
++;
227 g_ptr_array_add(t
->per_cpu_tracefiles
, tf
);
230 gint
ltt_tracefile_open_control(LttTrace
*t
, char * control_name
)
239 tf
= ltt_tracefile_open(t
,control_name
);
241 g_warning("ltt_tracefile_open_control : bad file descriptor");
244 t
->control_tracefile_number
++;
245 g_ptr_array_add(t
->control_tracefiles
,tf
);
247 //parse facilities tracefile to get base_id
248 if(strcmp(&control_name
[strlen(control_name
)-10],"facilities") ==0){
250 if(!ltt_tracefile_read(tf
,&ev
)) return 0; // end of file
252 if(ev
.event_id
== TRACE_FACILITY_LOAD
){
254 fLoad
.name
= (char*)pos
;
255 fLoad
.checksum
= *(LttChecksum
*)(pos
+ strlen(fLoad
.name
));
256 fLoad
.base_code
= *(guint32
*)(pos
+ strlen(fLoad
.name
) + sizeof(LttChecksum
));
258 for(i
=0;i
<t
->facility_number
;i
++){
259 f
= (LttFacility
*)g_ptr_array_index(t
->facilities
,i
);
260 if(strcmp(f
->name
,fLoad
.name
)==0 && fLoad
.checksum
==f
->checksum
){
261 f
->base_id
= fLoad
.base_code
;
265 if(i
==t
->facility_number
) {
266 g_warning("Facility: %s, checksum: %u is not found",
267 fLoad
.name
,(unsigned int)fLoad
.checksum
);
270 }else if(ev
.event_id
== TRACE_BLOCK_START
){
272 }else if(ev
.event_id
== TRACE_BLOCK_END
){
275 g_warning("Not valid facilities trace file");
283 /*****************************************************************************
285 * ltt_tracefile_close: close a trace file,
287 * t : tracefile which will be closed
288 ****************************************************************************/
290 void ltt_tracefile_close(LttTracefile
*t
)
299 /*****************************************************************************
300 *Get system information
301 ****************************************************************************/
302 gint
getSystemInfo(LttSystemDescription
* des
, char * pathname
)
305 char buf
[DIR_NAME_SIZE
];
307 GMarkupParseContext
* context
;
308 GError
* error
= NULL
;
309 GMarkupParser markup_parser
=
311 parser_start_element
,
314 NULL
, /* passthrough */
318 fp
= fopen(pathname
,"r");
320 g_warning("Can not open file : %s\n", pathname
);
324 context
= g_markup_parse_context_new(&markup_parser
, 0, des
,NULL
);
326 while(fgets(buf
,DIR_NAME_SIZE
, fp
) != NULL
){
327 if(!g_markup_parse_context_parse(context
, buf
, DIR_NAME_SIZE
, &error
)){
329 g_warning("Can not parse xml file: \n%s\n", error
->message
);
332 g_markup_parse_context_free(context
);
337 g_markup_parse_context_free(context
);
342 /*****************************************************************************
343 *The following functions get facility/tracefile information
344 ****************************************************************************/
346 gint
getFacilityInfo(LttTrace
*t
, char* eventdefs
)
349 struct dirent
*entry
;
354 char name
[DIR_NAME_SIZE
];
356 dir
= opendir(eventdefs
);
358 g_warning("Can not open directory: %s\n", eventdefs
);
362 while((entry
= readdir(dir
)) != NULL
){
363 ptr
= &entry
->d_name
[strlen(entry
->d_name
)-4];
364 if(strcmp(ptr
,".xml") != 0) continue;
365 strcpy(name
,eventdefs
);
366 strcat(name
,entry
->d_name
);
367 ltt_facility_open(t
,name
);
371 for(j
=0;j
<t
->facility_number
;j
++){
372 f
= (LttFacility
*)g_ptr_array_index(t
->facilities
, j
);
373 for(i
=0; i
<f
->event_number
; i
++){
375 setFieldsOffset(NULL
, et
, NULL
, t
);
381 gint
getControlFileInfo(LttTrace
*t
, char* control
)
384 struct dirent
*entry
;
385 char name
[DIR_NAME_SIZE
];
387 dir
= opendir(control
);
389 g_warning("Can not open directory: %s\n", control
);
393 while((entry
= readdir(dir
)) != NULL
){
394 if(strcmp(entry
->d_name
,"facilities") != 0 &&
395 strcmp(entry
->d_name
,"interrupts") != 0 &&
396 strcmp(entry
->d_name
,"processes") != 0) continue;
398 strcpy(name
,control
);
399 strcat(name
,entry
->d_name
);
400 if(ltt_tracefile_open_control(t
,name
))
407 gint
getCpuFileInfo(LttTrace
*t
, char* cpu
)
410 struct dirent
*entry
;
411 char name
[DIR_NAME_SIZE
];
415 g_warning("Can not open directory: %s\n", cpu
);
419 while((entry
= readdir(dir
)) != NULL
){
420 if(strcmp(entry
->d_name
,".") != 0 &&
421 strcmp(entry
->d_name
,"..") != 0 &&
422 strcmp(entry
->d_name
,".svn") != 0){
424 strcat(name
,entry
->d_name
);
425 ltt_tracefile_open_cpu(t
,name
);
432 /*****************************************************************************
433 *A trace is specified as a pathname to the directory containing all the
434 *associated data (control tracefiles, per cpu tracefiles, event
437 *When a trace is closed, all the associated facilities, types and fields
438 *are released as well.
442 /****************************************************************************
443 * get_absolute_pathname
445 * return the unique pathname in the system
447 * MD : Fixed this function so it uses realpath, dealing well with
448 * forgotten cases (.. were not used correctly before).
450 ****************************************************************************/
451 void get_absolute_pathname(const char *pathname
, char * abs_pathname
)
453 abs_pathname
[0] = '\0';
455 if ( realpath (pathname
, abs_pathname
) != NULL
)
459 /* error, return the original path unmodified */
460 strcpy(abs_pathname
, pathname
);
466 LttTrace
*ltt_trace_open(const char *pathname
)
469 LttSystemDescription
* sys_description
;
470 char eventdefs
[DIR_NAME_SIZE
];
471 char info
[DIR_NAME_SIZE
];
472 char control
[DIR_NAME_SIZE
];
473 char cpu
[DIR_NAME_SIZE
];
474 char tmp
[DIR_NAME_SIZE
];
475 char abs_path
[DIR_NAME_SIZE
];
476 gboolean has_slash
= FALSE
;
478 get_absolute_pathname(pathname
, abs_path
);
479 //establish the pathname to different directories
480 if(abs_path
[strlen(abs_path
)-1] == '/')has_slash
= TRUE
;
481 strcpy(eventdefs
,abs_path
);
482 if(!has_slash
)strcat(eventdefs
,"/");
483 strcat(eventdefs
,"eventdefs/");
485 strcpy(info
,abs_path
);
486 if(!has_slash
)strcat(info
,"/");
487 strcat(info
,"info/");
489 strcpy(control
,abs_path
);
490 if(!has_slash
)strcat(control
,"/");
491 strcat(control
,"control/");
493 strcpy(cpu
,abs_path
);
494 if(!has_slash
)strcat(cpu
,"/");
498 sys_description
= g_new(LttSystemDescription
, 1);
499 t
= g_new(LttTrace
, 1);
500 t
->pathname
= g_strdup(abs_path
);
501 t
->facility_number
= 0;
502 t
->control_tracefile_number
= 0;
503 t
->per_cpu_tracefile_number
= 0;
504 t
->system_description
= sys_description
;
505 t
->control_tracefiles
= g_ptr_array_new();
506 t
->per_cpu_tracefiles
= g_ptr_array_new();
507 t
->facilities
= g_ptr_array_new();
508 //getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian));
510 //get system description
512 strcat(tmp
,"system.xml");
513 if(getSystemInfo(sys_description
, tmp
)) {
514 g_ptr_array_free(t
->facilities
, TRUE
);
515 g_ptr_array_free(t
->per_cpu_tracefiles
, TRUE
);
516 g_ptr_array_free(t
->control_tracefiles
, TRUE
);
517 g_free(sys_description
);
523 /* Set the reverse byte order between trace and reader */
524 if(sys_description
->endian
== LTT_LITTLE_ENDIAN
525 && G_BYTE_ORDER
!= G_LITTLE_ENDIAN
) {
526 t
->reverse_byte_order
= 1;
527 } else if(sys_description
->endian
== LTT_BIG_ENDIAN
528 && G_BYTE_ORDER
!= G_BIG_ENDIAN
) {
529 t
->reverse_byte_order
= 1;
530 } else t
->reverse_byte_order
= 0;
532 //get facilities info
533 if(getFacilityInfo(t
,eventdefs
)) {
534 g_ptr_array_free(t
->facilities
, TRUE
);
535 g_ptr_array_free(t
->per_cpu_tracefiles
, TRUE
);
536 g_ptr_array_free(t
->control_tracefiles
, TRUE
);
537 g_free(sys_description
);
543 //get control tracefile info
544 getControlFileInfo(t
,control
);
546 if(getControlFileInfo(t,control)) {
547 g_ptr_array_free(t->facilities, TRUE);
548 g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
549 g_ptr_array_free(t->control_tracefiles, TRUE);
550 g_free(sys_description);
554 }*/ // With fatal error
556 //get cpu tracefile info
557 if(getCpuFileInfo(t
,cpu
)) {
558 g_ptr_array_free(t
->facilities
, TRUE
);
559 g_ptr_array_free(t
->per_cpu_tracefiles
, TRUE
);
560 g_ptr_array_free(t
->control_tracefiles
, TRUE
);
561 g_free(sys_description
);
570 char * ltt_trace_name(LttTrace
*t
)
576 /******************************************************************************
577 * When we copy a trace, we want all the opening actions to happen again :
578 * the trace will be reopened and totally independant from the original.
579 * That's why we call ltt_trace_open.
580 *****************************************************************************/
581 LttTrace
*ltt_trace_copy(LttTrace
*self
)
583 return ltt_trace_open(self
->pathname
);
586 void ltt_trace_close(LttTrace
*t
)
594 //free system_description
595 g_free(t
->system_description
->description
);
596 g_free(t
->system_description
->node_name
);
597 g_free(t
->system_description
->domain_name
);
598 g_free(t
->system_description
->kernel_name
);
599 g_free(t
->system_description
->kernel_release
);
600 g_free(t
->system_description
->kernel_version
);
601 g_free(t
->system_description
->machine
);
602 g_free(t
->system_description
->processor
);
603 g_free(t
->system_description
->hardware_platform
);
604 g_free(t
->system_description
->operating_system
);
605 g_free(t
->system_description
);
607 //free control_tracefiles
608 for(i
=0;i
<t
->control_tracefile_number
;i
++){
609 tf
= (LttTracefile
*)g_ptr_array_index(t
->control_tracefiles
,i
);
610 ltt_tracefile_close(tf
);
612 g_ptr_array_free(t
->control_tracefiles
, TRUE
);
614 //free per_cpu_tracefiles
615 for(i
=0;i
<t
->per_cpu_tracefile_number
;i
++){
616 tf
= (LttTracefile
*)g_ptr_array_index(t
->per_cpu_tracefiles
,i
);
617 ltt_tracefile_close(tf
);
619 g_ptr_array_free(t
->per_cpu_tracefiles
, TRUE
);
622 for(i
=0;i
<t
->facility_number
;i
++){
623 f
= (LttFacility
*)g_ptr_array_index(t
->facilities
,i
);
624 ltt_facility_close(f
);
626 g_ptr_array_free(t
->facilities
, TRUE
);
634 /*****************************************************************************
635 *Get the system description of the trace
636 ****************************************************************************/
638 LttSystemDescription
*ltt_trace_system_description(LttTrace
*t
)
640 return t
->system_description
;
643 /*****************************************************************************
644 * The following functions discover the facilities of the trace
645 ****************************************************************************/
647 unsigned ltt_trace_facility_number(LttTrace
*t
)
649 return (unsigned)(t
->facility_number
);
652 LttFacility
*ltt_trace_facility_get(LttTrace
*t
, unsigned i
)
654 return (LttFacility
*)g_ptr_array_index(t
->facilities
, i
);
657 /*****************************************************************************
659 * ltt_trace_facility_find : find facilities in the trace
662 * name : facility name
664 * position : position of the facility in the trace
666 * : the number of facilities
667 ****************************************************************************/
669 unsigned ltt_trace_facility_find(LttTrace
*t
, char *name
, unsigned *position
)
671 unsigned int i
, count
=0;
673 for(i
=0;i
<t
->facility_number
;i
++){
674 f
= (LttFacility
*)g_ptr_array_index(t
->facilities
, i
);
675 if(strcmp(f
->name
,name
)==0){
677 if(count
==1) *position
= i
;
685 /*****************************************************************************
686 * Functions to discover all the event types in the trace
687 ****************************************************************************/
689 unsigned ltt_trace_eventtype_number(LttTrace
*t
)
693 unsigned int num
= t
->facility_number
;
697 f
= (LttFacility
*)g_ptr_array_index(t
->facilities
, i
);
698 count
+= f
->event_number
;
703 /* FIXME : performances could be improved with a better design for this
704 * function : sequential search through a container has never been the
705 * best on the critical path. */
706 LttFacility
* ltt_trace_facility_by_id(LttTrace
* trace
, unsigned id
)
708 LttFacility
* facility
= NULL
;
710 unsigned int num
= trace
->facility_number
;
711 GPtrArray
*facilities
= trace
->facilities
;
713 for(i
=0;unlikely(i
<num
);){
714 LttFacility
*iter_facility
=
715 (LttFacility
*) g_ptr_array_index(facilities
,i
);
716 unsigned base_id
= iter_facility
->base_id
;
718 if(likely(id
>= base_id
&&
719 id
< base_id
+ iter_facility
->event_number
)) {
720 facility
= iter_facility
;
730 LttEventType
*ltt_trace_eventtype_get(LttTrace
*t
, unsigned evId
)
732 LttEventType
*event_type
;
735 f
= ltt_trace_facility_by_id(t
,evId
);
737 if(unlikely(!f
)) event_type
= NULL
;
738 else event_type
= f
->events
[evId
- f
->base_id
];
743 /*****************************************************************************
744 *There is one "per cpu" tracefile for each CPU, numbered from 0 to
745 *the maximum number of CPU in the system. When the number of CPU installed
746 *is less than the maximum, some positions are unused. There are also a
747 *number of "control" tracefiles (facilities, interrupts...).
748 ****************************************************************************/
749 unsigned ltt_trace_control_tracefile_number(LttTrace
*t
)
751 return t
->control_tracefile_number
;
754 unsigned ltt_trace_per_cpu_tracefile_number(LttTrace
*t
)
756 return t
->per_cpu_tracefile_number
;
759 /*****************************************************************************
760 *It is possible to search for the tracefiles by name or by CPU position.
761 *The index within the tracefiles of the same type is returned if found
762 *and a negative value otherwise.
763 ****************************************************************************/
765 int ltt_trace_control_tracefile_find(LttTrace
*t
, const gchar
*name
)
767 LttTracefile
* tracefile
;
769 for(i
=0;i
<t
->control_tracefile_number
;i
++){
770 tracefile
= (LttTracefile
*)g_ptr_array_index(t
->control_tracefiles
, i
);
771 if(strcmp(tracefile
->name
, name
)==0)break;
773 if(i
== t
->control_tracefile_number
) return -1;
777 /* not really useful. We just have to know that cpu tracefiles
778 * comes before control tracefiles.
780 int ltt_trace_per_cpu_tracefile_find(LttTrace
*t
, const gchar
*name
)
782 LttTracefile
* tracefile
;
784 for(i
=0;i
<t
->per_cpu_tracefile_number
;i
++){
785 tracefile
= (LttTracefile
*)g_ptr_array_index(t
->per_cpu_tracefiles
, i
);
786 if(strcmp(tracefile
->name
, name
)==0)break;
788 if(i
== t
->per_cpu_tracefile_number
) return -1;
792 /*****************************************************************************
793 *Get a specific tracefile
794 ****************************************************************************/
796 LttTracefile
*ltt_trace_control_tracefile_get(LttTrace
*t
, unsigned i
)
798 return (LttTracefile
*)g_ptr_array_index(t
->control_tracefiles
, i
);
801 LttTracefile
*ltt_trace_per_cpu_tracefile_get(LttTrace
*t
, unsigned i
)
803 return (LttTracefile
*)g_ptr_array_index(t
->per_cpu_tracefiles
, i
);
806 /*****************************************************************************
807 * Get the start time and end time of the trace
808 ****************************************************************************/
810 void ltt_trace_time_span_get(LttTrace
*t
, LttTime
*start
, LttTime
*end
)
812 LttTime startSmall
, startTmp
, endBig
, endTmp
;
816 for(i
=0;i
<t
->control_tracefile_number
;i
++){
817 tf
= g_ptr_array_index(t
->control_tracefiles
, i
);
819 startTmp
= ltt_get_time(t
->reverse_byte_order
, &tf
->a_block_start
->time
);
820 readBlock(tf
,tf
->block_number
);
821 endTmp
= ltt_get_time(t
->reverse_byte_order
, &tf
->a_block_end
->time
);
823 startSmall
= startTmp
;
828 if(ltt_time_compare(startSmall
,startTmp
) > 0) startSmall
= startTmp
;
829 if(ltt_time_compare(endBig
,endTmp
) < 0) endBig
= endTmp
;
832 for(i
=0;i
<t
->per_cpu_tracefile_number
;i
++){
833 tf
= g_ptr_array_index(t
->per_cpu_tracefiles
, i
);
835 startTmp
= ltt_get_time(t
->reverse_byte_order
, &tf
->a_block_start
->time
);
836 readBlock(tf
,tf
->block_number
);
837 endTmp
= ltt_get_time(t
->reverse_byte_order
, &tf
->a_block_end
->time
);
839 startSmall
= startTmp
;
843 if(ltt_time_compare(startSmall
,startTmp
) > 0) startSmall
= startTmp
;
844 if(ltt_time_compare(endBig
,endTmp
) < 0) endBig
= endTmp
;
847 if(start
!= NULL
) *start
= startSmall
;
848 if(end
!= NULL
) *end
= endBig
;
852 /*****************************************************************************
853 *Get the name of a tracefile
854 ****************************************************************************/
856 char *ltt_tracefile_name(LttTracefile
*tf
)
861 /*****************************************************************************
862 * Get the number of blocks in the tracefile
863 ****************************************************************************/
865 unsigned ltt_tracefile_block_number(LttTracefile
*tf
)
867 return tf
->block_number
;
870 /*****************************************************************************
872 * ltt_tracefile_seek_time: seek to the first event of the trace with time
873 * larger or equal to time
876 * time : criteria of the time
877 ****************************************************************************/
878 void ltt_tracefile_find_time_block(LttTracefile
*t
, LttTime time
,
879 int start_block
, int end_block
)
881 int err
, tmp_block
, s
, e
;
885 err
=readBlock(t
,start_block
);
886 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
887 if(start_block
== end_block
)return;
889 tailTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
890 &t
->a_block_end
->time
), time
);
891 if(tailTime
>= 0) return;
893 err
=readBlock(t
,end_block
);
894 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
895 if(start_block
+1 == end_block
)return;
897 headTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
898 &t
->a_block_start
->time
), time
);
899 if(headTime
<= 0 ) return;
901 tmp_block
= (end_block
+ start_block
)/2;
902 err
=readBlock(t
,tmp_block
);
903 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
905 headTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
906 &t
->a_block_start
->time
), time
);
907 tailTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
908 &t
->a_block_end
->time
), time
);
909 if(headTime
<= 0 && tailTime
>= 0) return;
915 ltt_tracefile_find_time_block(t
, time
, s
, e
);
923 ltt_tracefile_find_time_block(t
, time
, s
, e
);
928 void ltt_tracefile_backward_find_time_block(LttTracefile
*t
, LttTime time
)
930 int t_time
, h_time
, err
;
931 err
=readBlock(t
,t
->which_block
-1);
932 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
933 h_time
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
934 &t
->a_block_start
->time
), time
);
935 t_time
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
936 &t
->a_block_end
->time
), time
);
939 if(t
->which_block
== 1) return;
940 err
=readBlock(t
,t
->which_block
-1);
941 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
942 tmp
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
943 &t
->a_block_end
->time
), time
);
944 if(tmp
== 0) return ltt_tracefile_seek_time(t
, time
);
945 err
=readBlock(t
,t
->which_block
+1);
946 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
947 }else if(h_time
> 0){
948 ltt_tracefile_find_time_block(t
, time
, 1, t
->which_block
);
949 return ltt_tracefile_seek_time(t
, time
) ;
951 if(t_time
>= 0) return ltt_tracefile_seek_time(t
, time
);
952 err
=readBlock(t
,t
->which_block
+1);
953 if(err
) g_error("Can not read tracefile: %s\n", t
->name
);
957 void ltt_tracefile_seek_time(LttTracefile
*t
, LttTime time
)
961 int headTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
962 &t
->a_block_start
->time
), time
);
963 int tailTime
= ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
964 &t
->a_block_end
->time
), time
);
967 if(headTime
< 0 && tailTime
> 0){
968 if(ltt_time_compare(ltt_get_time(t
->trace
->reverse_byte_order
,
969 &t
->a_block_end
->time
),
970 t
->current_event_time
) !=0) {
971 lttTime
= getEventTime(t
);
972 err
= ltt_time_compare(lttTime
, time
);
974 if(t
->which_event
==2 || ltt_time_compare(t
->prev_event_time
,time
)<0){
978 return ltt_tracefile_seek_time(t
, time
);
982 if(ltt_tracefile_read(t
,&ev
) == NULL
) {
983 g_print("End of file\n");
986 lttTime
= getEventTime(t
);
987 err
= ltt_time_compare(lttTime
, time
);
991 }else{//we are at the end of the block
993 return ltt_tracefile_seek_time(t
, time
);
995 }else if(headTime
>= 0){
996 if(t
->which_block
== 1){
999 if(ltt_time_compare(t
->prev_block_end_time
, time
) >= 0 ||
1000 (t
->prev_block_end_time
.tv_sec
== 0 &&
1001 t
->prev_block_end_time
.tv_nsec
== 0 )){
1002 ltt_tracefile_backward_find_time_block(t
, time
);
1007 }else if(tailTime
< 0){
1008 if(t
->which_block
!= t
->block_number
){
1009 ltt_tracefile_find_time_block(t
, time
, t
->which_block
+1, t
->block_number
);
1010 return ltt_tracefile_seek_time(t
, time
);
1012 t
->cur_event_pos
= t
->buffer
+ t
->block_size
;
1013 g_print("End of file\n");
1016 }else if(tailTime
== 0){
1017 t
->cur_event_pos
= t
->last_event_pos
;
1018 t
->current_event_time
= time
;
1019 t
->cur_heart_beat_number
= 0;
1020 t
->prev_event_time
.tv_sec
= 0;
1021 t
->prev_event_time
.tv_nsec
= 0;
1026 /*****************************************************************************
1027 * Seek to the first event with position equal or larger to ep
1029 * Modified by Mathieu Desnoyers to used faster offset position instead of
1030 * re-reading the whole buffer.
1031 ****************************************************************************/
1033 void ltt_tracefile_seek_position(LttTracefile
*t
, const LttEventPosition
*ep
)
1035 //if we are at the right place, just return
1036 if(likely(t
->which_block
== ep
->block_num
&& t
->which_event
== ep
->event_num
))
1039 if(likely(t
->which_block
== ep
->block_num
)) updateTracefile(t
);
1040 else readBlock(t
,ep
->block_num
);
1041 //event offset is available
1042 if(likely(ep
->old_position
)){
1045 t
->which_event
= ep
->event_num
;
1046 t
->cur_event_pos
= t
->buffer
+ ep
->event_offset
;
1047 t
->prev_event_time
= ep
->event_time
;
1048 t
->current_event_time
= ep
->event_time
;
1049 t
->cur_heart_beat_number
= ep
->heart_beat_number
;
1050 t
->cur_cycle_count
= ep
->event_cycle_count
;
1052 /* This is a workaround for fast position seek */
1053 t
->last_event_pos
= ep
->last_event_pos
;
1054 t
->prev_block_end_time
= ep
->prev_block_end_time
;
1055 t
->prev_event_time
= ep
->prev_event_time
;
1056 t
->pre_cycle_count
= ep
->pre_cycle_count
;
1057 t
->count
= ep
->count
;
1058 t
->overflow_nsec
= ep
->overflow_nsec
;
1059 t
->last_heartbeat
= ep
->last_heartbeat
;
1060 /* end of workaround */
1062 //update the fields of the current event and go to the next event
1064 if(unlikely(err
== ERANGE
)) g_error("event id is out of range\n");
1069 //only block number and event index are available
1070 //MD: warning : this is slow!
1071 g_warning("using slow O(n) tracefile seek position");
1074 while(likely(t
->which_event
< ep
->event_num
)) ltt_tracefile_read(t
, &event
);
1079 /*****************************************************************************
1081 * ltt_tracefile_read : read the current event, set the pointer to the next
1085 * LttEvent * : an event to be processed
1086 ****************************************************************************/
1088 LttEvent
*ltt_tracefile_read(LttTracefile
*t
, LttEvent
*event
)
1092 if(unlikely(t
->cur_event_pos
== t
->buffer
+ t
->block_size
)){
1093 if(unlikely(t
->which_block
== t
->block_number
)){
1096 err
= readBlock(t
, t
->which_block
+ 1);
1097 if(unlikely(err
))g_error("Can not read tracefile");
1100 event
->event_id
= ltt_get_uint16(t
->trace
->reverse_byte_order
, t
->cur_event_pos
);
1101 if(unlikely(event
->event_id
== TRACE_TIME_HEARTBEAT
))
1102 t
->cur_heart_beat_number
++;
1104 t
->prev_event_time
= t
->current_event_time
;
1105 // t->current_event_time = getEventTime(t);
1107 event
->time_delta
= ltt_get_uint32(t
->trace
->reverse_byte_order
, t
->cur_event_pos
+ EVENT_ID_SIZE
);
1108 event
->event_time
= t
->current_event_time
;
1109 event
->event_cycle_count
= t
->cur_cycle_count
;
1111 event
->tracefile
= t
;
1112 event
->data
= t
->cur_event_pos
+ EVENT_HEADER_SIZE
;
1113 event
->which_block
= t
->which_block
;
1114 event
->which_event
= t
->which_event
;
1116 /* This is a workaround for fast position seek */
1117 event
->last_event_pos
= t
->last_event_pos
;
1118 event
->prev_block_end_time
= t
->prev_block_end_time
;
1119 event
->prev_event_time
= t
->prev_event_time
;
1120 event
->pre_cycle_count
= t
->pre_cycle_count
;
1121 event
->count
= t
->count
;
1122 event
->overflow_nsec
= t
->overflow_nsec
;
1123 event
->last_heartbeat
= t
->last_heartbeat
;
1125 /* end of workaround */
1129 //update the fields of the current event and go to the next event
1131 if(unlikely(err
== ERANGE
)) g_error("event id is out of range\n");
1136 /****************************************************************************
1138 * readFile : wrap function to read from a file
1140 * fd : file descriptor
1141 * buf : buf to contain the content
1142 * size : number of bytes to be read
1143 * mesg : message to be printed if some thing goes wrong
1146 * EIO : can not read from the file
1147 ****************************************************************************/
1149 int readFile(int fd
, void * buf
, size_t size
, char * mesg
)
1151 ssize_t nbBytes
= read(fd
, buf
, size
);
1153 if((size_t)nbBytes
!= size
) {
1155 perror("Error in readFile : ");
1157 g_warning("%s",mesg
);
1165 /****************************************************************************
1167 * readBlock : read a block from the file
1169 * lttdes : ltt trace file
1170 * whichBlock : the block which will be read
1173 * EINVAL : lseek fail
1174 * EIO : can not read from the file
1175 ****************************************************************************/
1177 int readBlock(LttTracefile
* tf
, int whichBlock
)
1182 /* same block already opened requested */
1183 if((guint
)whichBlock
== tf
->which_block
) return 0;
1185 if(likely(whichBlock
- tf
->which_block
== 1 && tf
->which_block
!= 0)){
1186 tf
->prev_block_end_time
= ltt_get_time(tf
->trace
->reverse_byte_order
,
1187 &tf
->a_block_end
->time
);
1188 tf
->prev_event_time
= ltt_get_time(tf
->trace
->reverse_byte_order
,
1189 &tf
->a_block_end
->time
);
1191 tf
->prev_block_end_time
.tv_sec
= 0;
1192 tf
->prev_block_end_time
.tv_nsec
= 0;
1193 tf
->prev_event_time
.tv_sec
= 0;
1194 tf
->prev_event_time
.tv_nsec
= 0;
1197 nbBytes
=lseek(tf
->fd
,(off_t
)((whichBlock
-1)*tf
->block_size
), SEEK_SET
);
1198 if(unlikely(nbBytes
== -1)) return EINVAL
;
1200 if(unlikely(readFile(tf
->fd
,tf
->buffer
,tf
->block_size
,"Unable to read a block")))
1203 tf
->a_block_start
=(BlockStart
*) (tf
->buffer
+ EVENT_HEADER_SIZE
);
1204 lostSize
= *(guint32
*)(tf
->buffer
+ tf
->block_size
- sizeof(guint32
));
1205 tf
->a_block_end
=(BlockEnd
*)(tf
->buffer
+ tf
->block_size
1206 - sizeof(guint32
) - lostSize
- sizeof(BlockEnd
));
1207 tf
->last_event_pos
= tf
->buffer
+ tf
->block_size
-
1208 sizeof(guint32
) - lostSize
1209 - sizeof(BlockEnd
) - EVENT_HEADER_SIZE
;
1211 tf
->which_block
= whichBlock
;
1212 tf
->which_event
= 1;
1213 tf
->cur_event_pos
= tf
->buffer
;//the beginning of the block, block start ev
1214 tf
->cur_heart_beat_number
= 0;
1215 tf
->last_heartbeat
= NULL
;
1217 /* read the whole block to precalculate total of cycles in it */
1219 tf
->pre_cycle_count
= 0;
1220 tf
->cur_cycle_count
= ltt_get_uint32(tf
->trace
->reverse_byte_order
, tf
->cur_event_pos
+ EVENT_ID_SIZE
);
1222 getCyclePerNsec(tf
);
1226 (ltt_get_uint64(tf
->trace
->reverse_byte_order
,
1227 &tf
->a_block_start
->cycle_count
)&0xFFFFFFFF))
1228 * tf
->nsec_per_cycle
);
1230 tf
->current_event_time
= getEventTime(tf
);
1235 /*****************************************************************************
1237 * updateTracefile : reinitialize the info of the block which is already
1241 ****************************************************************************/
1243 void updateTracefile(LttTracefile
* tf
)
1245 tf
->which_event
= 1;
1246 tf
->cur_event_pos
= tf
->buffer
;
1247 tf
->current_event_time
= getEventTime(tf
);
1248 tf
->cur_heart_beat_number
= 0;
1250 tf
->prev_event_time
.tv_sec
= 0;
1251 tf
->prev_event_time
.tv_nsec
= 0;
1255 (-((double)ltt_get_uint64(tf
->trace
->reverse_byte_order
,
1256 &tf
->a_block_start
->cycle_count
))
1257 * tf
->nsec_per_cycle
);
1261 /*****************************************************************************
1263 * skipEvent : go to the next event, update the fields of the current event
1268 * ERANGE : event id is out of range
1269 ****************************************************************************/
1271 int skipEvent(LttTracefile
* t
)
1278 evId
= ltt_get_uint16(t
->trace
->reverse_byte_order
, t
->cur_event_pos
);
1279 evData
= t
->cur_event_pos
+ EVENT_HEADER_SIZE
;
1281 evT
= ltt_trace_eventtype_get(t
->trace
,(unsigned)evId
);
1283 if(likely(evT
)) rootFld
= evT
->root_field
;
1286 if(likely(rootFld
)){
1287 //event has string/sequence or the last event is not the same event
1288 if(likely((evT
->latest_block
!=t
->which_block
|| evT
->latest_event
!=t
->which_event
)
1289 && rootFld
->field_fixed
== 0)){
1290 setFieldsOffset(t
, evT
, evData
, t
->trace
);
1292 t
->cur_event_pos
+= EVENT_HEADER_SIZE
+ rootFld
->field_size
;
1293 }else t
->cur_event_pos
+= EVENT_HEADER_SIZE
;
1295 evT
->latest_block
= t
->which_block
;
1296 evT
->latest_event
= t
->which_event
;
1298 //the next event is in the next block
1299 if(unlikely(evId
== TRACE_BLOCK_END
)){
1300 t
->cur_event_pos
= t
->buffer
+ t
->block_size
;
1302 t
->cur_cycle_count
= ltt_get_uint32(t
->trace
->reverse_byte_order
,
1303 t
->cur_event_pos
+ EVENT_ID_SIZE
);
1305 t
->current_event_time
= getEventTime(t
);
1312 /*****************************************************************************
1314 * getCyclePerNsec : calculate cycles per nsec for current block
1315 * MD: should have tracefile_read the whole block, so we know the
1316 * total of cycles in it before being called.
1319 ****************************************************************************/
1321 void getCyclePerNsec(LttTracefile
* t
)
1323 LttTime lBufTotalTime
; /* Total time for this buffer */
1324 double lBufTotalNSec
; /* Total time for this buffer in nsecs */
1325 LttCycleCount lBufTotalCycle
;/* Total cycles for this buffer */
1327 /* Calculate the total time for this buffer */
1328 lBufTotalTime
= ltt_time_sub(
1329 ltt_get_time(t
->trace
->reverse_byte_order
, &t
->a_block_end
->time
),
1330 ltt_get_time(t
->trace
->reverse_byte_order
, &t
->a_block_start
->time
));
1332 /* Calculate the total cycles for this bufffer */
1333 lBufTotalCycle
= ltt_get_uint64(t
->trace
->reverse_byte_order
,
1334 &t
->a_block_end
->cycle_count
);
1335 lBufTotalCycle
-= ltt_get_uint64(t
->trace
->reverse_byte_order
,
1336 &t
->a_block_start
->cycle_count
);
1338 /* Convert the total time to double */
1339 lBufTotalNSec
= ltt_time_to_double(lBufTotalTime
);
1341 t
->nsec_per_cycle
= (double)lBufTotalNSec
/ (double)lBufTotalCycle
;
1343 /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */
1344 t
->one_overflow_nsec
= t
->nsec_per_cycle
* (double)0x100000000ULL
;
1348 /****************************************************************************
1350 * getEventTime : obtain the time of an event
1351 * NOTE : this function _really_ is on critical path.
1355 * LttTime : the time of the event
1356 ****************************************************************************/
1358 static inline LttTime
getEventTime(LttTracefile
* tf
)
1361 LttCycleCount cycle_count
; // cycle count for the current event
1362 //LttCycleCount lEventTotalCycle; // Total cycles from start for event
1363 gint64 lEventNSec
; // Total nsecs from start for event
1364 LttTime lTimeOffset
; // Time offset in struct LttTime
1367 evId
= ltt_get_uint16(tf
->trace
->reverse_byte_order
,
1370 cycle_count
= ltt_get_uint32(tf
->trace
->reverse_byte_order
,
1371 tf
->cur_event_pos
+ EVENT_ID_SIZE
);
1373 gboolean comp_count
= cycle_count
< tf
->pre_cycle_count
;
1375 tf
->pre_cycle_count
= cycle_count
;
1377 if(unlikely(comp_count
)) {
1379 tf
->overflow_nsec
+= tf
->one_overflow_nsec
;
1380 tf
->count
++; //increment overflow count
1383 if(unlikely(evId
== TRACE_BLOCK_START
)) {
1385 } else if(unlikely(evId
== TRACE_BLOCK_END
)) {
1386 lEventNSec
= ((double)
1387 (ltt_get_uint64(tf
->trace
->reverse_byte_order
,
1388 &tf
->a_block_end
->cycle_count
)
1389 - ltt_get_uint64(tf
->trace
->reverse_byte_order
,
1390 &tf
->a_block_start
->cycle_count
))
1391 * tf
->nsec_per_cycle
);
1394 /* If you want to make heart beat a special case and use their own 64 bits
1395 * TSC, activate this.
1397 else if(unlikely(evId
== TRACE_TIME_HEARTBEAT
)) {
1399 tf
->last_heartbeat
= (TimeHeartbeat
*)(tf
->cur_event_pos
+EVENT_HEADER_SIZE
);
1400 lEventNSec
= ((double)(tf
->last_heartbeat
->cycle_count
1401 - tf
->a_block_start
->cycle_count
)
1402 * tf
->nsec_per_cycle
);
1406 lEventNSec
= (gint64
)((double)cycle_count
* tf
->nsec_per_cycle
)
1410 lTimeOffset
= ltt_time_from_uint64(lEventNSec
);
1412 time
= ltt_time_add(ltt_get_time(tf
->trace
->reverse_byte_order
,
1413 &tf
->a_block_start
->time
), lTimeOffset
);
1418 /*****************************************************************************
1420 * setFieldsOffset : set offset of the fields
1422 * tracefile : opened trace file
1423 * evT : the event type
1424 * evD : event data, it may be NULL
1425 ****************************************************************************/
1427 void setFieldsOffset(LttTracefile
*tf
,LttEventType
*evT
,void *evD
,LttTrace
* t
)
1429 LttField
* rootFld
= evT
->root_field
;
1430 // rootFld->base_address = evD;
1433 rootFld
->field_size
= getFieldtypeSize(tf
, evT
, 0,0,rootFld
, evD
,t
);
1436 /*****************************************************************************
1438 * getFieldtypeSize: get the size of the field type (primitive type)
1440 * tracefile : opened trace file
1442 * offsetRoot : offset from the root
1443 * offsetParent : offset from the parrent
1445 * evD : event data, it may be NULL
1447 * int : size of the field
1448 ****************************************************************************/
1450 static inline gint
getFieldtypeSize(LttTracefile
* t
,
1451 LttEventType
* evT
, gint offsetRoot
,
1452 gint offsetParent
, LttField
* fld
, void *evD
, LttTrace
*trace
)
1454 gint size
, size1
, element_number
, i
, offset1
, offset2
;
1455 LttType
* type
= fld
->field_type
;
1457 if(unlikely(t
&& evT
->latest_block
==t
->which_block
&&
1458 evT
->latest_event
==t
->which_event
)){
1459 size
= fld
->field_size
;
1460 goto end_getFieldtypeSize
;
1462 /* This likely has been tested with gcov : half of them.. */
1463 if(unlikely(fld
->field_fixed
== 1)){
1465 if(unlikely(fld
== evT
->root_field
)) {
1466 size
= fld
->field_size
;
1467 goto end_getFieldtypeSize
;
1471 /* From gcov profiling : half string, half struct, can we gain something
1472 * from that ? (Mathieu) */
1473 switch(type
->type_class
) {
1475 element_number
= (int) type
->element_number
;
1476 if(fld
->field_fixed
== -1){
1477 size
= getFieldtypeSize(t
, evT
, offsetRoot
,
1478 0,fld
->child
[0], NULL
, trace
);
1479 if(size
== 0){ //has string or sequence
1480 fld
->field_fixed
= 0;
1482 fld
->field_fixed
= 1;
1483 size
*= element_number
;
1485 }else if(fld
->field_fixed
== 0){// has string or sequence
1487 for(i
=0;i
<element_number
;i
++){
1488 size
+= getFieldtypeSize(t
, evT
, offsetRoot
+size
,size
,
1489 fld
->child
[0], evD
+size
, trace
);
1491 }else size
= fld
->field_size
;
1493 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
1494 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
1500 size1
= (int) ltt_type_size(trace
, type
);
1501 if(fld
->field_fixed
== -1){
1502 fld
->sequ_number_size
= size1
;
1503 fld
->field_fixed
= 0;
1504 size
= getFieldtypeSize(t
, evT
, offsetRoot
,
1505 0,fld
->child
[0], NULL
, trace
);
1506 fld
->element_size
= size
;
1508 element_number
= getIntNumber(t
->trace
->reverse_byte_order
,size1
,evD
);
1509 type
->element_number
= element_number
;
1510 if(fld
->element_size
> 0){
1511 size
= element_number
* fld
->element_size
;
1512 }else{//sequence has string or sequence
1514 for(i
=0;i
<element_number
;i
++){
1515 size
+= getFieldtypeSize(t
, evT
, offsetRoot
+size
+size1
,size
+size1
,
1516 fld
->child
[0], evD
+size
+size1
, trace
);
1522 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
1523 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
1530 if(fld
->field_fixed
== -1){
1531 fld
->field_fixed
= 0;
1533 /* Hope my implementation is faster than strlen (Mathieu) */
1534 char *ptr
=(char*)evD
;
1536 /* from gcov : many many strings are empty, make it the common case.*/
1537 while(unlikely(*ptr
!= '\0')) { size
++; ptr
++; }
1538 //size = ptr - (char*)evD + 1; //include end : '\0'
1540 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
1541 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
1546 element_number
= (int) type
->element_number
;
1548 /* tested with gcov */
1549 if(unlikely(fld
->field_fixed
== -1)){
1550 offset1
= offsetRoot
;
1552 for(i
=0;i
<element_number
;i
++){
1553 size1
=getFieldtypeSize(t
, evT
,offset1
,offset2
,
1554 fld
->child
[i
], NULL
, trace
);
1555 if(likely(size1
> 0 && size
>= 0)){
1557 if(likely(offset1
>= 0)) offset1
+= size1
;
1565 if(unlikely(size
== -1)){
1566 fld
->field_fixed
= 0;
1568 }else fld
->field_fixed
= 1;
1569 }else if(likely(fld
->field_fixed
== 0)){
1570 offset1
= offsetRoot
;
1572 for(i
=0;unlikely(i
<element_number
);i
++){
1573 size
=getFieldtypeSize(t
,evT
,offset1
,offset2
,
1574 fld
->child
[i
],evD
+offset2
, trace
);
1579 }else size
= fld
->field_size
;
1580 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
1581 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
1585 if(unlikely(fld
->field_fixed
== -1)){
1586 size
= (int) ltt_type_size(trace
, type
);
1587 fld
->field_fixed
= 1;
1588 }else size
= fld
->field_size
;
1590 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
1591 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
1597 fld
->offset_root
= offsetRoot
;
1598 fld
->offset_parent
= offsetParent
;
1599 fld
->field_size
= size
;
1601 end_getFieldtypeSize
:
1607 /*****************************************************************************
1609 * getIntNumber : get an integer number
1611 * size : the size of the integer
1612 * evD : the event data
1614 * gint64 : a 64 bits integer
1615 ****************************************************************************/
1617 gint64
getIntNumber(gboolean reverse_byte_order
, int size
, void *evD
)
1622 case 1: i
= *((gint8
*)evD
); break;
1623 case 2: i
= ltt_get_int16(reverse_byte_order
, evD
); break;
1624 case 4: i
= ltt_get_int32(reverse_byte_order
, evD
); break;
1625 case 8: i
= ltt_get_int64(reverse_byte_order
, evD
); break;
1626 default: i
= ltt_get_int64(reverse_byte_order
, evD
);
1627 g_critical("getIntNumber : integer size %d unknown", size
);
1634 /*****************************************************************************
1636 * getDataEndianType : get the data type size and endian type of the local
1639 * size : size of data type
1640 * endian : endian type, little or big
1641 ****************************************************************************/
1643 void getDataEndianType(LttArchSize
* size
, LttArchEndian
* endian
)
1647 int sizeInt
=sizeof(int), sizeLong
=sizeof(long), sizePointer
=sizeof(void *);
1649 if(c
== 1) *endian
= LTT_LITTLE_ENDIAN
;
1650 else *endian
= LTT_BIG_ENDIAN
;
1652 if(sizeInt
== 2 && sizeLong
== 4 && sizePointer
== 4)
1654 else if(sizeInt
== 4 && sizeLong
== 4 && sizePointer
== 4)
1656 else if(sizeInt
== 4 && sizeLong
== 8 && sizePointer
== 8)
1658 else if(sizeInt
== 8 && sizeLong
== 8 && sizePointer
== 8)
1660 else *size
= LTT_UNKNOWN
;
1663 /* get the node name of the system */
1665 char * ltt_trace_system_description_node_name (LttSystemDescription
* s
)
1667 return s
->node_name
;
1671 /* get the domain name of the system */
1673 char * ltt_trace_system_description_domain_name (LttSystemDescription
* s
)
1675 return s
->domain_name
;
1679 /* get the description of the system */
1681 char * ltt_trace_system_description_description (LttSystemDescription
* s
)
1683 return s
->description
;
1687 /* get the start time of the trace */
1689 LttTime
ltt_trace_system_description_trace_start_time(LttSystemDescription
*s
)
1691 return s
->trace_start
;
1695 LttTracefile
*ltt_tracefile_new()
1697 return g_new(LttTracefile
, 1);
1700 void ltt_tracefile_destroy(LttTracefile
*tf
)
1705 void ltt_tracefile_copy(LttTracefile
*dest
, const LttTracefile
*src
)