5 #include <ltt/LTTTypes.h>
7 #include <ltt/facility.h>
9 /* search for the (named) type in the table, if it does not exist
11 LttType
* lookup_named_type(LttFacility
*fac
, type_descriptor
* td
);
13 /* construct directed acyclic graph for types, and tree for fields */
14 void constructTypeAndFields(LttFacility
* fac
,type_descriptor
* td
,
17 /* generate the facility according to the events belongin to it */
18 void generateFacility(LttFacility
* f
, facility
* fac
,
19 LttChecksum checksum
);
21 /* functions to release the memory occupied by a facility */
22 void freeFacility(LttFacility
* facility
);
23 void freeEventtype(LttEventType
* evType
);
24 void freeAllNamedTypes(table
* named_types
);
25 void freeAllUnamedTypes(sequence
* unnamed_types
);
26 void freeAllFields(sequence
* all_fields
);
27 void freeLttType(LttType
* type
);
28 void freeLttField(LttField
* fld
);
31 /*****************************************************************************
33 * ltt_facility_open : open facilities
35 * t : the trace containing the facilities
36 * pathname : the path name of the facility
37 ****************************************************************************/
39 void ltt_facility_open(LttTrace
* t
, char * pathname
)
43 char buffer
[BUFFER_SIZE
];
50 in
.error
= error_callback
;
53 in
.fp
= fopen(in
.name
, "r");
54 if(!in
.fp
) in
.error(&in
,"cannot open input file");
57 token
= getToken(&in
);
58 if(in
.type
== ENDFILE
) break;
60 if(strcmp(token
, "<")) in
.error(&in
,"not a facility file");
63 if(strcmp("facility",token
) == 0) {
64 fac
= g_new(facility
, 1);
66 fac
->description
= NULL
;
67 sequence_init(&(fac
->events
));
68 table_init(&(fac
->named_types
));
69 sequence_init(&(fac
->unnamed_types
));
71 parseFacility(&in
, fac
);
73 //check if any namedType is not defined
74 checkNamedTypesImplemented(&fac
->named_types
);
76 generateChecksum(fac
->name
, &checksum
, &fac
->events
);
78 f
= g_new(LttFacility
,1);
79 generateFacility(f
, fac
, checksum
);
82 g_ptr_array_add(t
->facilities
,f
);
85 free(fac
->description
);
86 freeEvents(&fac
->events
);
87 sequence_dispose(&fac
->events
);
88 freeNamedType(&fac
->named_types
);
89 table_dispose(&fac
->named_types
);
90 freeTypes(&fac
->unnamed_types
);
91 sequence_dispose(&fac
->unnamed_types
);
94 else in
.error(&in
,"facility token was expected");
100 /*****************************************************************************
102 * generateFacility : generate facility, internal function
104 * facility : LttFacilty structure
105 * fac : facility structure
106 * checksum : checksum of the facility
107 ****************************************************************************/
109 void generateFacility(LttFacility
*f
, facility
*fac
,LttChecksum checksum
)
111 char * facilityName
= fac
->name
;
112 sequence
* events
= &fac
->events
;
114 LttEventType
* evType
;
118 f
->name
= g_strdup(facilityName
);
119 f
->event_number
= events
->position
;
120 f
->checksum
= checksum
;
122 //initialize inner structures
123 f
->events
= g_new(LttEventType
*,f
->event_number
);
124 sequence_init(&(f
->all_fields
));
125 sequence_init(&(f
->all_unnamed_types
));
126 table_init(&(f
->all_named_types
));
128 //for each event, construct field tree and type graph
129 for(i
=0;i
<events
->position
;i
++){
130 evType
= g_new(LttEventType
,1);
131 f
->events
[i
] = evType
;
133 evType
->name
= g_strdup(((event
*)(events
->array
[i
]))->name
);
134 evType
->description
=g_strdup(((event
*)(events
->array
[i
]))->description
);
136 field
= g_new(LttField
, 1);
137 sequence_push(&(f
->all_fields
), field
);
138 evType
->root_field
= field
;
139 evType
->facility
= f
;
142 field
->field_pos
= 0;
143 type
= lookup_named_type(f
,((event
*)(events
->array
[i
]))->type
);
144 field
->field_type
= type
;
145 field
->offset_root
= 0;
146 field
->fixed_root
= 1;
147 field
->offset_parent
= 0;
148 field
->fixed_parent
= 1;
149 // field->base_address = NULL;
150 field
->field_size
= 0;
151 field
->field_fixed
= -1;
152 field
->parent
= NULL
;
154 field
->current_element
= 0;
156 //construct field tree and type graph
157 constructTypeAndFields(f
,((event
*)(events
->array
[i
]))->type
,field
);
162 /*****************************************************************************
164 * constructTypeAndFields : construct field tree and type graph,
165 * internal recursion function
167 * fac : facility struct
168 * td : type descriptor
169 * root_field : root field of the event
170 ****************************************************************************/
172 void constructTypeAndFields(LttFacility
* fac
,type_descriptor
* td
,
176 type_descriptor
* tmpTd
;
178 // if(td->type == LTT_STRING || td->type == LTT_SEQUENCE)
179 // fld->field_size = 0;
180 // else fld->field_size = -1;
182 if(td
->type
== LTT_ENUM
){
183 fld
->field_type
->element_number
= td
->labels
.position
;
184 fld
->field_type
->enum_strings
= g_new(char*,td
->labels
.position
);
185 for(i
=0;i
<td
->labels
.position
;i
++){
186 fld
->field_type
->enum_strings
[i
]
187 = g_strdup(((char*)(td
->labels
.array
[i
])));
189 }else if(td
->type
== LTT_ARRAY
|| td
->type
== LTT_SEQUENCE
){
190 if(td
->type
== LTT_ARRAY
)
191 fld
->field_type
->element_number
= (unsigned)td
->size
;
192 fld
->field_type
->element_type
= g_new(LttType
*,1);
193 tmpTd
= td
->nested_type
;
194 fld
->field_type
->element_type
[0] = lookup_named_type(fac
, tmpTd
);
195 fld
->child
= g_new(LttField
*, 1);
196 fld
->child
[0] = g_new(LttField
, 1);
197 sequence_push(&(fac
->all_fields
), fld
->child
[0]);
199 fld
->child
[0]->field_pos
= 0;
200 fld
->child
[0]->field_type
= fld
->field_type
->element_type
[0];
201 fld
->child
[0]->offset_root
= fld
->offset_root
;
202 fld
->child
[0]->fixed_root
= fld
->fixed_root
;
203 fld
->child
[0]->offset_parent
= 0;
204 fld
->child
[0]->fixed_parent
= 1;
205 // fld->child[0]->base_address = NULL;
206 fld
->child
[0]->field_size
= 0;
207 fld
->child
[0]->field_fixed
= -1;
208 fld
->child
[0]->parent
= fld
;
209 fld
->child
[0]->child
= NULL
;
210 fld
->child
[0]->current_element
= 0;
211 constructTypeAndFields(fac
, tmpTd
, fld
->child
[0]);
212 }else if(td
->type
== LTT_STRUCT
){
213 fld
->field_type
->element_number
= td
->fields
.position
;
214 fld
->field_type
->element_type
= g_new(LttType
*, td
->fields
.position
);
215 fld
->child
= g_new(LttField
*, td
->fields
.position
);
216 for(i
=0;i
<td
->fields
.position
;i
++){
217 tmpTd
= ((field
*)(td
->fields
.array
[i
]))->type
;
218 fld
->field_type
->element_type
[i
] = lookup_named_type(fac
, tmpTd
);
219 fld
->child
[i
] = g_new(LttField
,1);
220 sequence_push(&(fac
->all_fields
), fld
->child
[i
]);
222 fld
->child
[i
]->field_pos
= i
;
223 fld
->child
[i
]->field_type
= fld
->field_type
->element_type
[i
];
224 fld
->child
[i
]->field_type
->element_name
225 = g_strdup(((field
*)(td
->fields
.array
[i
]))->name
);
226 fld
->child
[i
]->offset_root
= -1;
227 fld
->child
[i
]->fixed_root
= -1;
228 fld
->child
[i
]->offset_parent
= -1;
229 fld
->child
[i
]->fixed_parent
= -1;
230 // fld->child[i]->base_address = NULL;
231 fld
->child
[i
]->field_size
= 0;
232 fld
->child
[i
]->field_fixed
= -1;
233 fld
->child
[i
]->parent
= fld
;
234 fld
->child
[i
]->child
= NULL
;
235 fld
->child
[i
]->current_element
= 0;
236 constructTypeAndFields(fac
, tmpTd
, fld
->child
[i
]);
242 /*****************************************************************************
244 * lookup_named_type: search named type in the table
247 * fac : facility struct
248 * td : type descriptor
250 * : either find the named type, or create a new LttType
251 ****************************************************************************/
253 LttType
* lookup_named_type(LttFacility
*fac
, type_descriptor
* td
)
255 LttType
* lttType
= NULL
;
259 for(i
=0;i
<fac
->all_named_types
.keys
.position
;i
++){
260 name
= (char *)(fac
->all_named_types
.keys
.array
[i
]);
261 if(strcmp(name
, td
->type_name
)==0){
262 lttType
= (LttType
*)(fac
->all_named_types
.values
.array
[i
]);
269 lttType
= g_new(LttType
,1);
270 lttType
->type_class
= td
->type
;
271 if(td
->fmt
) lttType
->fmt
= g_strdup(td
->fmt
);
272 else lttType
->fmt
= NULL
;
273 lttType
->size
= td
->size
;
274 lttType
->enum_strings
= NULL
;
275 lttType
->element_type
= NULL
;
276 lttType
->element_number
= 0;
278 name
= g_strdup(td
->type_name
);
279 table_insert(&(fac
->all_named_types
),name
,lttType
);
280 lttType
->element_name
= name
;
283 sequence_push(&(fac
->all_unnamed_types
), lttType
);
284 lttType
->element_name
= NULL
;
292 /*****************************************************************************
294 * ltt_facility_close : close a facility, decrease its usage count,
295 * if usage count = 0, release the memory
297 * f : facility that will be closed
299 * int : usage count ?? status
300 ****************************************************************************/
302 int ltt_facility_close(LttFacility
*f
)
304 //release the memory it occupied
310 /*****************************************************************************
311 * Functions to release the memory occupied by the facility
312 ****************************************************************************/
314 void freeFacility(LttFacility
* fac
)
317 g_free(fac
->name
); //free facility name
320 for(i
=0;i
<fac
->event_number
;i
++){
321 freeEventtype(fac
->events
[i
]);
325 //free all named types
326 freeAllNamedTypes(&(fac
->all_named_types
));
328 //free all unnamed types
329 freeAllUnamedTypes(&(fac
->all_unnamed_types
));
332 freeAllFields(&(fac
->all_fields
));
334 //free the facility itself
338 void freeEventtype(LttEventType
* evType
)
340 g_free(evType
->name
);
341 if(evType
->description
)
342 g_free(evType
->description
);
346 void freeAllNamedTypes(table
* named_types
)
349 for(i
=0;i
<named_types
->keys
.position
;i
++){
350 //free the name of the type
351 g_free((char*)(named_types
->keys
.array
[i
]));
354 freeLttType((LttType
*)(named_types
->values
.array
[i
]));
356 table_dispose(named_types
);
359 void freeAllUnamedTypes(sequence
* unnamed_types
)
362 for(i
=0;i
<unnamed_types
->position
;i
++){
363 freeLttType((LttType
*)(unnamed_types
->array
[i
]));
365 sequence_dispose(unnamed_types
);
368 void freeAllFields(sequence
* all_fields
)
371 for(i
=0;i
<all_fields
->position
;i
++){
372 freeLttField((LttField
*)(all_fields
->array
[i
]));
374 sequence_dispose(all_fields
);
377 //only free current type, not child types
378 void freeLttType(LttType
* type
)
381 if(type
->element_name
)
382 g_free(type
->element_name
);
385 if(type
->enum_strings
){
386 for(i
=0;i
<type
->element_number
;i
++)
387 g_free(type
->enum_strings
[i
]);
388 g_free(type
->enum_strings
);
391 if(type
->element_type
){
392 g_free(type
->element_type
);
397 //only free the current field, not child fields
398 void freeLttField(LttField
* fld
)
405 /*****************************************************************************
407 * ltt_facility_name : obtain the facility's name
409 * f : the facility that will be closed
411 * char * : the facility's name
412 ****************************************************************************/
414 char *ltt_facility_name(LttFacility
*f
)
419 /*****************************************************************************
421 * ltt_facility_checksum : obtain the facility's checksum
423 * f : the facility that will be closed
425 * LttChecksum : the checksum of the facility
426 ****************************************************************************/
428 LttChecksum
ltt_facility_checksum(LttFacility
*f
)
433 /*****************************************************************************
435 * ltt_facility_base_id : obtain the facility base id
439 * : the base id of the facility
440 ****************************************************************************/
442 unsigned ltt_facility_base_id(LttFacility
*f
)
447 /*****************************************************************************
449 * ltt_facility_eventtype_number: obtain the number of the event types
451 * f : the facility that will be closed
453 * unsigned : the number of the event types
454 ****************************************************************************/
456 unsigned ltt_facility_eventtype_number(LttFacility
*f
)
458 return (unsigned)(f
->event_number
);
461 /*****************************************************************************
463 * ltt_facility_eventtype_get: obtain the event type according to event id
464 * from 0 to event_number - 1
466 * f : the facility that will be closed
468 * LttEventType * : the event type required
469 ****************************************************************************/
471 LttEventType
*ltt_facility_eventtype_get(LttFacility
*f
, unsigned i
)
476 /*****************************************************************************
478 * ltt_facility_eventtype_get_by_name
479 * : obtain the event type according to event name
480 * event name is unique in the facility
482 * f : the facility that will be closed
483 * name : the name of the event
485 * LttEventType * : the event type required
486 ****************************************************************************/
488 LttEventType
*ltt_facility_eventtype_get_by_name(LttFacility
*f
, char *name
)
492 for(i
=0;i
<f
->event_number
;i
++){
494 if(strcmp(ev
->name
, name
) == 0)break;
497 if(i
==f
->event_number
) return NULL
;
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