1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Xiangxiu Yang
3 * 2005 Mathieu Desnoyers
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;
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.
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,
28 #include <sys/types.h>
36 #include "ltt-private.h"
37 #include <ltt/facility.h>
45 /* search for the (named) type in the table, if it does not exist
47 LttType
* lookup_named_type(LttFacility
*fac
, type_descriptor_t
* td
);
49 /* construct directed acyclic graph for types, and tree for fields */
50 void construct_types_and_fields(LttFacility
* fac
, type_descriptor_t
* td
,
53 /* generate the facility according to the events belongin to it */
54 void generateFacility(LttFacility
* f
, facility_t
* fac
,
57 /* functions to release the memory occupied by a facility */
58 void freeFacility(LttFacility
* facility
);
59 void freeEventtype(LttEventType
* evType
);
60 void freeLttType(LttType
** type
);
61 void freeLttField(LttField
* fld
);
62 void freeLttNamedType(LttType
* type
);
65 /*****************************************************************************
67 * ltt_facility_open : open facilities
69 * t : the trace containing the facilities
70 * pathname : the path name of the facility
72 *returns 0 on success, 1 on error.
73 ****************************************************************************/
75 int ltt_facility_open(LttFacility
*f
, LttTrace
* t
, gchar
* pathname
)
81 unsigned long checksum
;
82 GError
* error
= NULL
;
83 gchar buffer
[BUFFER_SIZE
];
85 in
.buffer
= &(buffer
[0]);
87 in
.error
= error_callback
;
90 //in.fd = g_open(in.name, O_RDONLY, 0);
92 in
.fp
= fopen(in
.name
, "r");
94 g_warning("cannot open facility description file %s",
99 //in.channel = g_io_channel_unix_new(in.fd);
103 token
= getToken(&in
);
104 if(in
.type
== ENDFILE
) break;
106 if(g_ascii_strcasecmp(token
, "<")) in
.error(&in
,"not a facility file");
107 token
= getName(&in
);
109 if(g_ascii_strcasecmp("facility",token
) == 0) {
110 fac
= g_new(facility_t
, 1);
112 fac
->description
= NULL
;
113 sequence_init(&(fac
->events
));
114 table_init(&(fac
->named_types
));
115 sequence_init(&(fac
->unnamed_types
));
117 parseFacility(&in
, fac
);
119 //check if any namedType is not defined
120 checkNamedTypesImplemented(&fac
->named_types
);
122 generateChecksum(fac
->name
, &checksum
, &fac
->events
);
124 generateFacility(f
, fac
, checksum
);
127 g_free(fac
->description
);
128 freeEvents(&fac
->events
);
129 sequence_dispose(&fac
->events
);
130 freeNamedType(&fac
->named_types
);
131 table_dispose(&fac
->named_types
);
132 freeTypes(&fac
->unnamed_types
);
133 sequence_dispose(&fac
->unnamed_types
);
137 g_warning("facility token was expected in file %s", in
.name
);
143 //g_io_channel_shutdown(in.channel, FALSE, &error); /* No flush */
144 //if(error != NULL) {
146 // g_warning("Can not close file: \n%s\n", error->message);
147 // g_error_free(error);
154 /*****************************************************************************
156 * generateFacility : generate facility, internal function
158 * facility : LttFacilty structure
159 * fac : facility structure
160 * checksum : checksum of the facility
161 ****************************************************************************/
163 void generateFacility(LttFacility
*f
, facility_t
*fac
, guint32 checksum
)
165 char * facilityName
= fac
->name
;
166 sequence_t
* events
= &fac
->events
;
168 //LttEventType * evType;
169 LttEventType
* event_type
;
173 g_assert(f
->name
== g_quark_from_string(facilityName
));
174 g_assert(f
->checksum
== checksum
);
176 //f->event_number = events->position;
178 //initialize inner structures
179 f
->events
= g_array_sized_new (FALSE
, TRUE
, sizeof(LttEventType
),
181 //f->events = g_new(LttEventType*,f->event_number);
182 f
->events
= g_array_set_size(f
->events
, events
->position
);
184 g_datalist_init(&f
->events_by_name
);
185 g_datalist_init(&f
->named_types
);
187 //f->named_types_number = fac->named_types.keys.position;
188 //f->named_types = g_array_sized_new (FALSE, TRUE, sizeof(LttType),
189 // fac->named_types.keys.position);
190 //f->named_types = g_new(LttType*, fac->named_types.keys.position);
191 //f->named_types = g_array_set_size(f->named_types,
192 // fac->named_types.keys.position);
194 //for each event, construct field tree and type graph
195 for(i
=0;i
<events
->position
;i
++){
196 event_type
= &g_array_index(f
->events
, LttEventType
, i
);
197 //evType = g_new(LttEventType,1);
198 //f->events[i] = evType;
201 g_quark_from_string(((event_t
*)(events
->array
[i
]))->name
);
203 g_datalist_id_set_data(&f
->events_by_name
, event_type
->name
,
206 event_type
->description
=
207 g_strdup(((event_t
*)(events
->array
[i
]))->description
);
209 field
= g_new(LttField
, 1);
210 event_type
->root_field
= field
;
211 event_type
->facility
= f
;
212 event_type
->index
= i
;
214 if(((event_t
*)(events
->array
[i
]))->type
!= NULL
){
215 // field->field_pos = 0;
216 type
= lookup_named_type(f
,((event_t
*)(events
->array
[i
]))->type
);
217 field
->field_type
= type
;
218 field
->offset_root
= 0;
219 field
->fixed_root
= FIELD_UNKNOWN
;
220 field
->offset_parent
= 0;
221 field
->fixed_parent
= FIELD_UNKNOWN
;
222 // field->base_address = NULL;
223 field
->field_size
= 0;
224 field
->fixed_size
= FIELD_UNKNOWN
;
225 field
->parent
= NULL
;
227 field
->current_element
= 0;
229 //construct field tree and type graph
230 construct_types_and_fields(f
,((event_t
*)(events
->array
[i
]))->type
,field
);
232 event_type
->root_field
= NULL
;
239 /*****************************************************************************
241 * construct_types_and_fields : construct field tree and type graph,
242 * internal recursion function
244 * fac : facility struct
245 * td : type descriptor
246 * root_field : root field of the event
247 ****************************************************************************/
250 void construct_types_and_fields(LttFacility
* fac
, type_descriptor_t
* td
,
254 type_descriptor_t
* tmpTd
;
260 fld
->field_type
->size
= td
->size
;
268 fld
->field_type
->size
= 0;
271 fld
->field_type
->size
= 0;
274 fld
->field_type
->element_number
= td
->labels
.position
;
275 fld
->field_type
->enum_strings
= g_new(GQuark
,td
->labels
.position
);
276 for(i
=0;i
<td
->labels
.position
;i
++){
277 fld
->field_type
->enum_strings
[i
]
278 = g_quark_from_string(((char*)(td
->labels
.array
[i
])));
280 fld
->field_type
->size
= td
->size
;
284 fld
->field_type
->element_number
= (unsigned)td
->size
;
286 fld
->field_type
->element_type
= g_new(LttType
*,1);
287 tmpTd
= td
->nested_type
;
288 fld
->field_type
->element_type
[0] = lookup_named_type(fac
, tmpTd
);
289 fld
->child
= g_new(LttField
*, 1);
290 fld
->child
[0] = g_new(LttField
, 1);
292 fld
->child
[0]->field_type
= fld
->field_type
->element_type
[0];
293 fld
->child
[0]->offset_root
= 0;
294 fld
->child
[0]->fixed_root
= FIELD_UNKNOWN
;
295 fld
->child
[0]->offset_parent
= 0;
296 fld
->child
[0]->fixed_parent
= FIELD_UNKNOWN
;
297 fld
->child
[0]->field_size
= 0;
298 fld
->child
[0]->fixed_size
= FIELD_UNKNOWN
;
299 fld
->child
[0]->parent
= fld
;
300 fld
->child
[0]->child
= NULL
;
301 fld
->child
[0]->current_element
= 0;
302 construct_types_and_fields(fac
, tmpTd
, fld
->child
[0]);
307 fld
->field_type
->element_number
= td
->fields
.position
;
309 g_assert(fld
->field_type
->element_type
== NULL
);
310 fld
->field_type
->element_type
= g_new(LttType
*, td
->fields
.position
);
312 fld
->child
= g_new(LttField
*, td
->fields
.position
);
313 for(i
=0;i
<td
->fields
.position
;i
++){
314 tmpTd
= ((field_t
*)(td
->fields
.array
[i
]))->type
;
316 fld
->field_type
->element_type
[i
] = lookup_named_type(fac
, tmpTd
);
317 fld
->child
[i
] = g_new(LttField
,1);
319 // fld->child[i]->field_pos = i;
320 fld
->child
[i
]->field_type
= fld
->field_type
->element_type
[i
];
322 fld
->child
[i
]->field_type
->element_name
323 = g_quark_from_string(((field_t
*)(td
->fields
.array
[i
]))->name
);
325 fld
->child
[i
]->offset_root
= 0;
326 fld
->child
[i
]->fixed_root
= FIELD_UNKNOWN
;
327 fld
->child
[i
]->offset_parent
= 0;
328 fld
->child
[i
]->fixed_parent
= FIELD_UNKNOWN
;
329 fld
->child
[i
]->field_size
= 0;
330 fld
->child
[i
]->fixed_size
= FIELD_UNKNOWN
;
331 fld
->child
[i
]->parent
= fld
;
332 fld
->child
[i
]->child
= NULL
;
333 fld
->child
[i
]->current_element
= 0;
334 construct_types_and_fields(fac
, tmpTd
, fld
->child
[i
]);
339 g_error("construct_types_and_fields : unknown type");
348 void construct_types_and_fields(LttFacility
* fac
, type_descriptor
* td
,
352 type_descriptor
* tmpTd
;
354 // if(td->type == LTT_STRING || td->type == LTT_SEQUENCE)
355 // fld->field_size = 0;
356 // else fld->field_size = -1;
358 if(td
->type
== LTT_ENUM
){
359 fld
->field_type
->element_number
= td
->labels
.position
;
360 fld
->field_type
->enum_strings
= g_new(GQuark
,td
->labels
.position
);
361 for(i
=0;i
<td
->labels
.position
;i
++){
362 fld
->field_type
->enum_strings
[i
]
363 = g_quark_from_string(((char*)(td
->labels
.array
[i
])));
365 }else if(td
->type
== LTT_ARRAY
|| td
->type
== LTT_SEQUENCE
){
366 if(td
->type
== LTT_ARRAY
)
367 fld
->field_type
->element_number
= (unsigned)td
->size
;
368 fld
->field_type
->element_type
= g_new(LttType
*,1);
369 tmpTd
= td
->nested_type
;
370 fld
->field_type
->element_type
[0] = lookup_named_type(fac
, tmpTd
);
371 fld
->child
= g_new(LttField
*, 1);
372 fld
->child
[0] = g_new(LttField
, 1);
374 // fld->child[0]->field_pos = 0;
375 fld
->child
[0]->field_type
= fld
->field_type
->element_type
[0];
376 fld
->child
[0]->offset_root
= fld
->offset_root
;
377 fld
->child
[0]->fixed_root
= fld
->fixed_root
;
378 fld
->child
[0]->offset_parent
= 0;
379 fld
->child
[0]->fixed_parent
= 1;
380 // fld->child[0]->base_address = NULL;
381 fld
->child
[0]->field_size
= 0;
382 fld
->child
[0]->field_fixed
= -1;
383 fld
->child
[0]->parent
= fld
;
384 fld
->child
[0]->child
= NULL
;
385 fld
->child
[0]->current_element
= 0;
386 construct_types_and_fields(fac
, tmpTd
, fld
->child
[0]);
387 }else if(td
->type
== LTT_STRUCT
){
388 fld
->field_type
->element_number
= td
->fields
.position
;
390 if(fld
->field_type
->element_type
== NULL
){
391 fld
->field_type
->element_type
= g_new(LttType
*, td
->fields
.position
);
397 fld
->child
= g_new(LttField
*, td
->fields
.position
);
398 for(i
=0;i
<td
->fields
.position
;i
++){
399 tmpTd
= ((type_fields
*)(td
->fields
.array
[i
]))->type
;
402 fld
->field_type
->element_type
[i
] = lookup_named_type(fac
, tmpTd
);
403 fld
->child
[i
] = g_new(LttField
,1);
405 fld
->child
[i
]->field_pos
= i
;
406 fld
->child
[i
]->field_type
= fld
->field_type
->element_type
[i
];
409 fld
->child
[i
]->field_type
->element_name
410 = g_quark_from_string(((type_fields
*)(td
->fields
.array
[i
]))->name
);
413 fld
->child
[i
]->offset_root
= -1;
414 fld
->child
[i
]->fixed_root
= -1;
415 fld
->child
[i
]->offset_parent
= -1;
416 fld
->child
[i
]->fixed_parent
= -1;
417 // fld->child[i]->base_address = NULL;
418 fld
->child
[i
]->field_size
= 0;
419 fld
->child
[i
]->field_fixed
= -1;
420 fld
->child
[i
]->parent
= fld
;
421 fld
->child
[i
]->child
= NULL
;
422 fld
->child
[i
]->current_element
= 0;
423 construct_types_and_fields(fac
, tmpTd
, fld
->child
[i
]);
429 /*****************************************************************************
431 * lookup_named_type: search named type in the table
434 * fac : facility struct
435 * td : type descriptor
437 * : either find the named type, or create a new LttType
438 ****************************************************************************/
440 LttType
* lookup_named_type(LttFacility
*fac
, type_descriptor_t
* td
)
442 LttType
*type
= NULL
;
445 if(td
->type_name
!= NULL
) {
447 name
= g_quark_from_string(td
->type_name
);
449 type
= g_datalist_id_get_data(&fac
->named_types
, name
);
453 /* Create the type */
454 type
= g_new(LttType
,1);
455 type
->type_name
= name
;
456 type
->type_class
= td
->type
;
457 if(td
->fmt
) type
->fmt
= g_strdup(td
->fmt
);
458 else type
->fmt
= NULL
;
459 type
->size
= td
->size
;
460 type
->enum_strings
= NULL
;
461 type
->element_type
= NULL
;
462 type
->element_number
= 0;
464 if(td
->type_name
!= NULL
)
465 g_datalist_id_set_data_full(&fac
->named_types
, name
,
466 type
, (GDestroyNotify
)freeLttNamedType
);
472 /*****************************************************************************
474 * ltt_facility_close : close a facility, decrease its usage count,
475 * if usage count = 0, release the memory
477 * f : facility that will be closed
478 ****************************************************************************/
480 void ltt_facility_close(LttFacility
*f
)
482 //release the memory it occupied
486 /*****************************************************************************
487 * Functions to release the memory occupied by the facility
488 ****************************************************************************/
490 void freeFacility(LttFacility
* fac
)
495 for(i
=0; i
<fac
->events
->len
; i
++) {
496 et
= &g_array_index (fac
->events
, LttEventType
, i
);
499 g_array_free(fac
->events
, TRUE
);
501 g_datalist_clear(&fac
->named_types
);
505 void freeEventtype(LttEventType
* evType
)
508 if(evType
->description
)
509 g_free(evType
->description
);
510 if(evType
->root_field
){
511 root_type
= evType
->root_field
->field_type
;
512 freeLttField(evType
->root_field
);
513 freeLttType(&root_type
);
517 void freeLttNamedType(LttType
* type
)
522 void freeLttType(LttType
** type
)
525 if(*type
== NULL
) return;
526 if((*type
)->type_name
!= 0) return; //this is a named type.
527 //if((*type)->type_name){
528 // return; //this is a named type
531 g_free((*type
)->fmt
);
532 if((*type
)->enum_strings
){
533 g_free((*type
)->enum_strings
);
536 if((*type
)->element_type
){
537 for(i
=0;i
<(*type
)->element_number
;i
++)
538 freeLttType(&((*type
)->element_type
[i
]));
539 g_free((*type
)->element_type
);
545 void freeLttField(LttField
* fld
)
551 if(fld
->field_type
->type_class
== LTT_ARRAY
||
552 fld
->field_type
->type_class
== LTT_SEQUENCE
){
554 }else if(fld
->field_type
->type_class
== LTT_STRUCT
){
555 size
= fld
->field_type
->element_number
;
560 for(i
=0; i
<size
; i
++){
561 if(fld
->child
[i
])freeLttField(fld
->child
[i
]);
568 /*****************************************************************************
570 * ltt_facility_name : obtain the facility's name
574 * GQuark : the facility's name
575 ****************************************************************************/
577 GQuark
ltt_facility_name(LttFacility
*f
)
582 /*****************************************************************************
584 * ltt_facility_checksum : obtain the facility's checksum
588 * : the checksum of the facility
589 ****************************************************************************/
591 guint32
ltt_facility_checksum(LttFacility
*f
)
596 /*****************************************************************************
598 * ltt_facility_base_id : obtain the facility base id
602 * : the base id of the facility
603 ****************************************************************************/
605 guint
ltt_facility_id(LttFacility
*f
)
610 /*****************************************************************************
612 * ltt_facility_eventtype_number: obtain the number of the event types
614 * f : the facility that will be closed
616 * : the number of the event types
617 ****************************************************************************/
619 guint8
ltt_facility_eventtype_number(LttFacility
*f
)
621 return (f
->events
->len
);
624 /*****************************************************************************
626 * ltt_facility_eventtype_get: obtain the event type according to event id
627 * from 0 to event_number - 1
629 * f : the facility that will be closed
631 * LttEventType * : the event type required
632 ****************************************************************************/
634 LttEventType
*ltt_facility_eventtype_get(LttFacility
*f
, guint8 i
)
636 if(!f
->exists
) return NULL
;
638 g_assert(i
< f
->events
->len
);
639 return &g_array_index(f
->events
, LttEventType
, i
);
642 /*****************************************************************************
644 * ltt_facility_eventtype_get_by_name
645 * : obtain the event type according to event name
646 * event name is unique in the facility
649 * name : the name of the event
651 * LttEventType * : the event type required
652 ****************************************************************************/
654 LttEventType
*ltt_facility_eventtype_get_by_name(LttFacility
*f
, GQuark name
)
656 LttEventType
*et
= g_datalist_id_get_data(&f
->events_by_name
, name
);
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