3183367e7ff16a97e479c7d52dcd1b6ce540d5e0
3 parser.c: Generate helper declarations and functions to trace events
4 from an event description file.
6 Copyright (C) 2005, Mathieu Desnoyers
7 Copyright (C) 2002, Xianxiu Yang
8 Copyright (C) 2002, Michel Dagenais
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 /* This program reads the ".xml" event definitions input files
24 and constructs structure for each event.
26 The program uses a very simple tokenizer, called from a hand written
27 recursive descent parser to fill a data structure describing the events.
28 The result is a sequence of events definitions which refer to type
31 A table of named types is maintained to allow refering to types by name
32 when the same type is used at several places. Finally a sequence of
33 all types is maintained to facilitate the freeing of all type
34 information when the processing of an ".xml" file is finished. */
40 #include <linux/errno.h>
47 char *intOutputTypes
[] = {
48 "int8_t", "int16_t", "int32_t", "int64_t" };
50 char *uintOutputTypes
[] = {
51 "uint8_t", "uint16_t", "uint32_t", "uint64_t" };
53 char *floatOutputTypes
[] = {
54 "undef", "undef", "float", "double" };
60 void strupper(char *string
)
71 int getSizeindex(unsigned int value
)
83 printf("Error : unknown value size %d\n", value
);
88 /*****************************************************************************
90 * getSize : translate from string to integer
92 * in : input file handle
95 *****************************************************************************/
97 unsigned long long int getSize(parse_file_t
*in
)
101 unsigned long long int ret
;
103 token
= getToken(in
);
104 if(token
[0] == '"') {
106 token
= getToken(in
);
108 if(in
->type
== NUMBER
) {
109 ret
= strtoull(token
, NULL
, 0);
114 token
= getToken(in
);
115 if(token
[0] != '"') goto error
;
120 in
->error(in
,"incorrect size specification");
124 /*****************************************************************************
126 * error_callback : print out error info
128 * in : input file handle
129 * msg : message to be printed
130 ****************************************************************************/
132 void error_callback(parse_file_t
*in
, char *msg
)
135 printf("Error in file %s, line %d: %s\n", in
->name
, in
->lineno
, msg
);
142 /*****************************************************************************
144 * memAlloc : allocate memory
146 * size : required memory size
148 * void * : pointer to allocate memory or NULL
149 ****************************************************************************/
151 void * memAlloc(int size
)
154 if(size
== 0) return NULL
;
157 printf("Failed to allocate memory");
163 /*****************************************************************************
165 * allocAndCopy : allocate memory and initialize it
167 * str : string to be put in memory
169 * char * : pointer to allocate memory or NULL
170 ****************************************************************************/
172 char *allocAndCopy(char *str
)
175 if(str
== NULL
) return NULL
;
176 addr
= (char *)memAlloc(strlen(str
)+1);
181 /**************************************************************************
185 * Read the attribute from the input file.
188 * in , input file handle.
189 * t , the type descriptor to fill.
191 **************************************************************************/
193 void getTypeAttributes(parse_file_t
*in
, type_descriptor_t
*t
,
194 sequence_t
* unnamed_types
, table_t
* named_types
)
204 token
= getToken(in
);
205 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
210 if(!strcmp("format",token
)) {
212 t
->fmt
= allocAndCopy(getQuotedString(in
));
213 //} else if(!strcmp("name",token)) {
215 // car = seekNextChar(in);
216 // if(car == EOF) in->error(in,"name was expected");
217 // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in));
218 // else t->type_name = allocAndCopy(getName(in));
219 } else if(!strcmp("size",token
)) {
221 t
->size
= getSize(in
);
222 } else if(!strcmp("custom_write", token
)) {
224 } else if(!strcmp("network", token
)) {
230 /**************************************************************************
234 * Read the attribute from the input file.
237 * in , input file handle.
238 * ev , the event to fill.
240 **************************************************************************/
242 void getEventAttributes(parse_file_t
*in
, event_t
*ev
)
249 ev
->per_tracefile
= 0;
252 token
= getToken(in
);
253 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
258 if(!strcmp("name",token
)) {
260 car
= seekNextChar(in
);
261 if(car
== EOF
) in
->error(in
,"name was expected");
262 else if(car
== '\"') ev
->name
= allocAndCopy(getQuotedString(in
));
263 else ev
->name
= allocAndCopy(getName(in
));
264 } else if(!strcmp("per_trace", token
)) {
266 } else if(!strcmp("per_tracefile", token
)) {
267 ev
->per_tracefile
= 1;
273 /**************************************************************************
275 * getFacilityAttributes
277 * Read the attribute from the input file.
280 * in , input file handle.
281 * fac , the facility to fill.
283 **************************************************************************/
285 void getFacilityAttributes(parse_file_t
*in
, facility_t
*fac
)
295 token
= getToken(in
);
296 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
301 if(!strcmp("name",token
)) {
303 car
= seekNextChar(in
);
304 if(car
== EOF
) in
->error(in
,"name was expected");
305 else if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
306 else fac
->name
= allocAndCopy(getName(in
));
307 if(!strncmp(fac
->name
, "user_", sizeof("user_")) == 0)
309 } else if(!strcmp("arch", token
)) {
311 car
= seekNextChar(in
);
312 if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
313 else fac
->arch
= allocAndCopy(getName(in
));
318 /**************************************************************************
322 * Read the attribute from the input file.
325 * in , input file handle.
326 * f , the field to fill.
328 **************************************************************************/
330 void getFieldAttributes(parse_file_t
*in
, field_t
*f
)
338 token
= getToken(in
);
339 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
344 if(!strcmp("name",token
)) {
346 car
= seekNextChar(in
);
347 if(car
== EOF
) in
->error(in
,"name was expected");
348 else if(car
== '\"') f
->name
= allocAndCopy(getQuotedString(in
));
349 else f
->name
= allocAndCopy(getName(in
));
354 char *getNameAttribute(parse_file_t
*in
)
361 token
= getToken(in
);
362 if(!strcmp("name",token
)) {
364 car
= seekNextChar(in
);
365 if(car
== EOF
) in
->error(in
,"name was expected");
366 else if(car
== '\"') name
= allocAndCopy(getQuotedString(in
));
367 else name
= allocAndCopy(getName(in
));
374 if(name
== NULL
) in
->error(in
, "Name was expected");
380 //for <label name=label_name value=n format="..."/>, value is an option
381 //Return value : 0 : no value, 1 : has a value
382 int getValueAttribute(parse_file_t
*in
, long long *value
)
387 token
= getToken(in
);
388 if(strcmp("/",token
) == 0){
393 if(strcmp("value",token
))in
->error(in
,"value was expected");
395 token
= getToken(in
);
397 if(token
[0] == '"') {
399 token
= getToken(in
);
401 if(in
->type
== NUMBER
) {
402 *value
= strtoll(token
, NULL
, 0);
407 token
= getToken(in
);
408 if(token
[0] != '"') goto error
;
413 in
->error(in
,"incorrect size specification");
417 char * getDescription(parse_file_t
*in
)
420 char * token
, car
, *str
;
424 getLAnglebracket(in
);
426 if(strcmp("description",token
)){
427 fseek(in
->fp
, pos
, SEEK_SET
);
431 getRAnglebracket(in
);
434 while((car
= getc(in
->fp
)) != EOF
) {
435 if(car
== '<') break;
436 if(car
== '\0') continue;
437 in
->buffer
[pos
] = car
;
440 if(car
== EOF
)in
->error(in
,"not a valid description");
441 in
->buffer
[pos
] = '\0';
443 str
= allocAndCopy(in
->buffer
);
447 if(strcmp("description", token
))in
->error(in
,"not a valid description");
448 getRAnglebracket(in
);
453 /*****************************************************************************
455 * parseFacility : generate event list
457 * in : input file handle
458 * fac : empty facility
460 * fac : facility filled with event list
461 ****************************************************************************/
463 void parseFacility(parse_file_t
*in
, facility_t
* fac
)
468 getFacilityAttributes(in
, fac
);
469 if(fac
->name
== NULL
) in
->error(in
, "Attribute not named");
471 fac
->capname
= allocAndCopy(fac
->name
);
472 strupper(fac
->capname
);
473 getRAnglebracket(in
);
475 fac
->description
= getDescription(in
);
478 getLAnglebracket(in
);
480 token
= getToken(in
);
481 if(in
->type
== ENDFILE
)
482 in
->error(in
,"the definition of the facility is not finished");
484 if(strcmp("event",token
) == 0){
485 ev
= (event_t
*) memAlloc(sizeof(event_t
));
486 sequence_push(&(fac
->events
),ev
);
487 parseEvent(in
,ev
, &(fac
->unnamed_types
), &(fac
->named_types
));
488 }else if(strcmp("type",token
) == 0){
489 parseTypeDefinition(in
, &(fac
->unnamed_types
), &(fac
->named_types
));
490 }else if(in
->type
== FORWARDSLASH
){
492 }else in
->error(in
,"event or type token expected\n");
496 if(strcmp("facility",token
)) in
->error(in
,"not the end of the facility");
497 getRAnglebracket(in
); //</facility>
500 /*****************************************************************************
502 * parseEvent : generate event from event definition
504 * in : input file handle
506 * unnamed_types : array of unamed types
507 * named_types : array of named types
509 * ev : new event (parameters are passed to it)
510 ****************************************************************************/
512 void parseEvent(parse_file_t
*in
, event_t
* ev
, sequence_t
* unnamed_types
,
513 table_t
* named_types
)
518 sequence_init(&(ev
->fields
));
519 //<event name=eventtype_name>
520 getEventAttributes(in
, ev
);
521 if(ev
->name
== NULL
) in
->error(in
, "Event not named");
522 getRAnglebracket(in
);
524 //<description>...</description>
525 ev
->description
= getDescription(in
);
528 /* Events can have multiple fields. each field form at least a function
529 * parameter of the logging function. */
531 getLAnglebracket(in
);
532 token
= getToken(in
);
535 case FORWARDSLASH
: /* </event> */
537 if(strcmp("event",token
))in
->error(in
,"not an event definition");
538 getRAnglebracket(in
); //</event>
541 case NAME
: /* a field */
542 if(strcmp("field",token
))in
->error(in
,"expecting a field");
543 f
= (field_t
*)memAlloc(sizeof(field_t
));
544 sequence_push(&(ev
->fields
),f
);
545 parseFields(in
, f
, unnamed_types
, named_types
, 1);
548 in
->error(in
, "expecting </event> or <field >");
553 if(in
->type
== FORWARDSLASH
){ //</event> NOTHING
555 }else if(in
->type
== NAME
){
556 if(strcmp("struct",token
)==0 || strcmp("typeref",token
)==0){
558 ev
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
559 if(ev
->type
->type
!= STRUCT
&& ev
->type
->type
!= NONE
)
560 in
->error(in
,"type must be a struct");
561 }else in
->error(in
, "not a valid type");
563 getLAnglebracket(in
);
565 }else in
->error(in
,"not a struct type");
566 getLAnglebracket(in
);
569 if(strcmp("event",token
))in
->error(in
,"not an event definition");
570 getRAnglebracket(in
); //</event>
574 /*****************************************************************************
576 * parseField : get field infomation from buffer
578 * in : input file handle
580 * unnamed_types : array of unamed types
581 * named_types : array of named types
582 * tag : is field surrounded by a <field> </field> tag ?
583 ****************************************************************************/
585 void parseFields(parse_file_t
*in
, field_t
*f
,
586 sequence_t
* unnamed_types
,
587 table_t
* named_types
,
592 //<field name=field_name> <description> <type> </field>
593 getFieldAttributes(in
, f
);
594 if(f
->name
== NULL
) in
->error(in
, "Field not named");
595 getRAnglebracket(in
);
597 f
->description
= getDescription(in
);
599 f
->description
= NULL
;
603 getLAnglebracket(in
);
604 f
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
607 getLAnglebracket(in
);
610 if(strcmp("field",token
))in
->error(in
,"not a valid field definition");
611 getRAnglebracket(in
); //</field>
616 /*****************************************************************************
618 * parseType : get type information, type can be :
620 * int(size,fmt); uint(size,fmt); float(size,fmt);
621 * string(fmt); enum(size,fmt,(label1,label2...))
623 * array(arraySize, type); sequence(lengthSize,type)
624 * struct(field(name,type,description)...)
628 * in : input file handle
629 * inType : a type descriptor
630 * unnamed_types : array of unamed types
631 * named_types : array of named types
633 * type_descriptor* : a type descriptor
634 ****************************************************************************/
636 type_descriptor_t
*parseType(parse_file_t
*in
, type_descriptor_t
*inType
,
637 sequence_t
* unnamed_types
, table_t
* named_types
)
640 type_descriptor_t
*t
;
644 t
= (type_descriptor_t
*) memAlloc(sizeof(type_descriptor_t
));
648 sequence_push(unnamed_types
,t
);
654 if(strcmp(token
,"struct") == 0) {
656 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
657 getRAnglebracket(in
); //<struct>
658 getLAnglebracket(in
); //<field name=..>
659 token
= getToken(in
);
660 sequence_init(&(t
->fields
));
661 while(strcmp("field",token
) == 0){
662 f
= (field_t
*)memAlloc(sizeof(field_t
));
663 sequence_push(&(t
->fields
),f
);
665 parseFields(in
, f
, unnamed_types
, named_types
, 1);
668 getLAnglebracket(in
);
669 token
= getToken(in
);
671 if(strcmp("/",token
))in
->error(in
,"not a valid structure definition");
673 if(strcmp("struct",token
)!=0)
674 in
->error(in
,"not a valid structure definition");
675 getRAnglebracket(in
); //</struct>
677 else if(strcmp(token
,"union") == 0) {
679 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
680 getRAnglebracket(in
); //<union>
682 getLAnglebracket(in
); //<field name=..>
683 token
= getToken(in
);
684 sequence_init(&(t
->fields
));
685 while(strcmp("field",token
) == 0){
686 f
= (field_t
*)memAlloc(sizeof(field_t
));
687 sequence_push(&(t
->fields
),f
);
688 parseFields(in
, f
, unnamed_types
, named_types
, 1);
691 getLAnglebracket(in
);
692 token
= getToken(in
);
694 if(strcmp("/",token
))in
->error(in
,"not a valid union definition");
696 if(strcmp("union",token
)!=0)
697 in
->error(in
,"not a valid union definition");
698 getRAnglebracket(in
); //</union>
700 else if(strcmp(token
,"array") == 0) {
702 sequence_init(&(t
->fields
));
703 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
704 if(t
->size
== 0) in
->error(in
, "Array has empty size");
706 getRAnglebracket(in
); //<array size=n>
708 //getLAnglebracket(in); //<subtype>
710 f
= (field_t
*)memAlloc(sizeof(field_t
));
711 sequence_push(&(t
->fields
),f
);
712 parseFields(in
, f
, unnamed_types
, named_types
, 0);
714 //getLAnglebracket(in); //<type struct>
715 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
717 getLAnglebracket(in
); //</array>
720 if(strcmp("array",token
))in
->error(in
,"not a valid array definition");
721 getRAnglebracket(in
); //</array>
723 else if(strcmp(token
,"sequence") == 0) {
725 sequence_init(&(t
->fields
));
726 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
728 getRAnglebracket(in
); //<sequence>
730 //getLAnglebracket(in); //<sequence size type>
732 f
= (field_t
*)memAlloc(sizeof(field_t
));
733 sequence_push(&(t
->fields
),f
);
734 parseFields(in
, f
, unnamed_types
, named_types
, 0);
736 //getLAnglebracket(in); //<subtype>
738 f
= (field_t
*)memAlloc(sizeof(field_t
));
739 sequence_push(&(t
->fields
),f
);
740 parseFields(in
, f
, unnamed_types
, named_types
, 0);
742 //getLAnglebracket(in); //<type sequence>
743 //t->length_type = parseType(in, NULL, unnamed_types, named_types);
745 //getLAnglebracket(in); //<type sequence>
747 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
749 if(t
->fields
.position
< 1) in
->error(in
, "Sequence has no length type");
750 if(t
->fields
.position
< 2) in
->error(in
, "Sequence has no subtype");
751 switch(((field_t
*)t
->fields
.array
[0])->type
->type
) {
761 in
->error(in
, "Wrong length type for sequence");
764 getLAnglebracket(in
); //</sequence>
767 if(strcmp("sequence",token
))in
->error(in
,"not a valid sequence definition");
768 getRAnglebracket(in
); //</sequence>
770 else if(strcmp(token
,"enum") == 0) {
772 long long value
= -1;
775 sequence_init(&(t
->labels
));
776 sequence_init(&(t
->labels_values
));
777 sequence_init(&(t
->labels_description
));
778 t
->already_printed
= 0;
779 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
780 //if(t->size == 0) in->error(in, "Sequence has empty size");
781 //Mathieu : we fix enum size to target int size. GCC is always like this.
782 //fox copy optimisation.
783 if(t
->size
!= 0) in
->error(in
, "Enum has fixed size of target int.");
785 getRAnglebracket(in
);
787 //<label name=label1 value=n/>
788 getLAnglebracket(in
);
789 token
= getToken(in
); //"label" or "/"
790 while(strcmp("label",token
) == 0){
791 int *label_value
= malloc(sizeof(int));
795 str
= allocAndCopy(getNameAttribute(in
));
796 has_value
= getValueAttribute(in
, &loc_value
);
798 sequence_push(&(t
->labels
),str
);
800 if(has_value
) value
= loc_value
;
803 *label_value
= value
;
804 sequence_push(&(t
->labels_values
), label_value
);
807 getRAnglebracket(in
);
809 //read description if any. May be NULL.
810 str
= allocAndCopy(getDescription(in
));
811 sequence_push(&(t
->labels_description
),str
);
813 //next label definition
814 getLAnglebracket(in
);
815 token
= getToken(in
); //"label" or "/"
817 if(strcmp("/",token
))in
->error(in
, "not a valid enum definition");
819 if(strcmp("enum",token
))in
->error(in
, "not a valid enum definition");
820 getRAnglebracket(in
); //</label>
822 else if(strcmp(token
,"int_fixed") == 0) {
824 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
825 if(t
->size
== 0) in
->error(in
, "int has empty size");
827 getRAnglebracket(in
);
829 else if(strcmp(token
,"uint_fixed") == 0) {
830 t
->type
= UINT_FIXED
;
831 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
832 if(t
->size
== 0) in
->error(in
, "uint has empty size");
834 getRAnglebracket(in
);
836 else if(strcmp(token
,"char") == 0) {
838 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
841 getRAnglebracket(in
);
843 else if(strcmp(token
,"uchar") == 0) {
845 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
848 getRAnglebracket(in
);
850 else if(strcmp(token
,"short") == 0) {
852 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
855 getRAnglebracket(in
);
857 else if(strcmp(token
,"ushort") == 0) {
859 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
862 getRAnglebracket(in
);
864 else if(strcmp(token
,"int") == 0) {
866 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
868 getRAnglebracket(in
);
870 else if(strcmp(token
,"uint") == 0) {
872 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
874 getRAnglebracket(in
);
877 else if(strcmp(token
,"pointer") == 0) {
879 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
881 getRAnglebracket(in
);
883 else if(strcmp(token
,"long") == 0) {
885 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
887 getRAnglebracket(in
);
889 else if(strcmp(token
,"ulong") == 0) {
891 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
893 getRAnglebracket(in
);
895 else if(strcmp(token
,"size_t") == 0) {
897 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
899 getRAnglebracket(in
);
901 else if(strcmp(token
,"ssize_t") == 0) {
903 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
905 getRAnglebracket(in
);
907 else if(strcmp(token
,"off_t") == 0) {
909 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
911 getRAnglebracket(in
);
913 else if(strcmp(token
,"float") == 0) {
915 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
917 getRAnglebracket(in
);
919 else if(strcmp(token
,"string") == 0) {
921 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
923 getRAnglebracket(in
);
925 else if(strcmp(token
,"typeref") == 0){
926 // Must be a named type
928 sequence_pop(unnamed_types
);
929 token
= getNameAttribute(in
);
930 t
= find_named_type(token
, named_types
);
931 if(t
== NULL
) in
->error(in
,"Named referred to must be pre-declared.");
932 getForwardslash(in
); //<typeref name=type_name/>
933 getRAnglebracket(in
);
935 }else in
->error(in
,"not a valid type");
940 /*****************************************************************************
942 * find_named_type : find a named type from hash table
945 * named_types : array of named types
947 * type_descriptor * : a type descriptor
948 *****************************************************************************/
950 type_descriptor_t
* find_named_type(char *name
, table_t
* named_types
)
952 type_descriptor_t
*t
;
954 t
= table_find(named_types
,name
);
959 type_descriptor_t
* create_named_type(char *name
, table_t
* named_types
)
961 type_descriptor_t
*t
;
963 t
= (type_descriptor_t
*)memAlloc(sizeof(type_descriptor_t
));
964 t
->type_name
= allocAndCopy(name
);
967 table_insert(named_types
,t
->type_name
,t
);
968 // table_insert(named_types,allocAndCopy(name),t);
972 /*****************************************************************************
974 * parseTypeDefinition : get type information from type definition
976 * in : input file handle
977 * unnamed_types : array of unamed types
978 * named_types : array of named types
979 *****************************************************************************/
981 void parseTypeDefinition(parse_file_t
* in
, sequence_t
* unnamed_types
,
982 table_t
* named_types
)
985 type_descriptor_t
*t
;
987 token
= getNameAttribute(in
);
988 if(token
== NULL
) in
->error(in
, "Type has empty name");
989 t
= create_named_type(token
, named_types
);
991 if(t
->type
!= NONE
) in
->error(in
,"redefinition of named type");
992 getRAnglebracket(in
); //<type name=type_name>
993 getLAnglebracket(in
); //<
995 //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition");
997 parseType(in
,t
, unnamed_types
, named_types
);
1000 getLAnglebracket(in
);
1001 getForwardslash(in
);
1002 token
= getName(in
);
1003 if(strcmp("type",token
))in
->error(in
,"not a valid type definition");
1004 getRAnglebracket(in
); //</type>
1007 /**************************************************************************
1009 * getComa, getName, getNumber, getEqual
1011 * Read a token from the input file, check its type, return it scontent.
1014 * in , input file handle.
1017 * address of token content.
1019 **************************************************************************/
1021 char *getName(parse_file_t
* in
)
1025 token
= getToken(in
);
1026 // Optional descriptions
1027 // if(in->type != NAME) in->error(in,"Name token was expected");
1031 int getNumber(parse_file_t
* in
)
1035 token
= getToken(in
);
1036 if(in
->type
!= NUMBER
) in
->error(in
, "Number token was expected");
1040 char *getForwardslash(parse_file_t
* in
)
1044 token
= getToken(in
);
1045 //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
1046 /* Mathieu : final / is optional now. */
1047 if(in
->type
!= FORWARDSLASH
) ungetToken(in
);
1052 char *getLAnglebracket(parse_file_t
* in
)
1056 token
= getToken(in
);
1057 if(in
->type
!= LANGLEBRACKET
) in
->error(in
, "Left angle bracket was expected");
1061 char *getRAnglebracket(parse_file_t
* in
)
1065 token
= getToken(in
);
1066 if(in
->type
!= RANGLEBRACKET
) in
->error(in
, "Right angle bracket was expected");
1070 char *getQuotedString(parse_file_t
* in
)
1074 token
= getToken(in
);
1075 if(in
->type
!= QUOTEDSTRING
) in
->error(in
, "quoted string was expected");
1079 char * getEqual(parse_file_t
*in
)
1083 token
= getToken(in
);
1084 if(in
->type
!= EQUAL
) in
->error(in
, "equal was expected");
1088 char seekNextChar(parse_file_t
*in
)
1091 while((car
= getc(in
->fp
)) != EOF
) {
1100 /******************************************************************
1102 * getToken, ungetToken
1104 * Read a token from the input file and return its type and content.
1105 * Line numbers are accounted for and whitespace/comments are skipped.
1108 * in, input file handle.
1111 * address of token content.
1113 ******************************************************************/
1115 void ungetToken(parse_file_t
* in
)
1120 char *getToken(parse_file_t
* in
)
1124 int pos
= 0, escaped
;
1126 if(in
->unget
== 1) {
1131 /* skip whitespace and comments */
1133 while((car
= getc(fp
)) != EOF
) {
1136 if(car1
== '*') skipComment(in
);
1137 else if(car1
== '/') skipEOL(in
);
1139 car1
= ungetc(car1
,fp
);
1143 else if(car
== '\n') in
->lineno
++;
1144 else if(!isspace(car
)) break;
1152 in
->type
= FORWARDSLASH
;
1153 in
->buffer
[pos
] = car
;
1157 in
->type
= LANGLEBRACKET
;
1158 in
->buffer
[pos
] = car
;
1162 in
->type
= RANGLEBRACKET
;
1163 in
->buffer
[pos
] = car
;
1168 in
->buffer
[pos
] = car
;
1173 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1174 if(car
== '\\' && escaped
== 0) {
1175 in
->buffer
[pos
] = car
;
1180 if(car
== '"' && escaped
== 0) break;
1181 if(car
== '\n' && escaped
== 0) {
1182 in
->error(in
, "non escaped newline inside quoted string");
1184 if(car
== '\n') in
->lineno
++;
1185 in
->buffer
[pos
] = car
;
1189 if(car
== EOF
) in
->error(in
,"no ending quotemark");
1190 if(pos
== BUFFER_SIZE
) in
->error(in
, "quoted string token too large");
1191 in
->type
= QUOTEDSTRING
;
1195 in
->buffer
[pos
] = car
;
1197 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1202 in
->buffer
[pos
] = car
;
1205 if(car
== EOF
) ungetc(car
,fp
);
1206 if(pos
== BUFFER_SIZE
) in
->error(in
, "number token too large");
1209 else if(isalnum(car
) || car
== '_' || car
== '-') {
1210 in
->buffer
[0] = car
;
1212 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1213 if(!(isalnum(car
) || car
== '_' || car
== '-')) {
1217 in
->buffer
[pos
] = car
;
1220 if(car
== EOF
) ungetc(car
,fp
);
1221 if(pos
== BUFFER_SIZE
) in
->error(in
, "name token too large");
1224 else in
->error(in
, "invalid character, unrecognized token");
1226 in
->buffer
[pos
] = 0;
1230 void skipComment(parse_file_t
* in
)
1233 while((car
= getc(in
->fp
)) != EOF
) {
1234 if(car
== '\n') in
->lineno
++;
1235 else if(car
== '*') {
1237 if(car
==EOF
) break;
1238 if(car
== '/') return;
1242 if(car
== EOF
) in
->error(in
,"comment begining with '/*' has no ending '*/'");
1245 void skipEOL(parse_file_t
* in
)
1248 while((car
= getc(in
->fp
)) != EOF
) {
1254 if(car
== EOF
)ungetc(car
, in
->fp
);
1257 /*****************************************************************************
1259 * checkNamedTypesImplemented : check if all named types have definition
1260 ****************************************************************************/
1262 void checkNamedTypesImplemented(table_t
* named_types
)
1264 type_descriptor_t
*t
;
1268 for(pos
= 0 ; pos
< named_types
->values
.position
; pos
++) {
1269 t
= (type_descriptor_t
*) named_types
->values
.array
[pos
];
1270 if(t
->type
== NONE
){
1271 sprintf(str
,"named type '%s' has no definition",
1272 (char*)named_types
->keys
.array
[pos
]);
1273 error_callback(NULL
,str
);
1279 /*****************************************************************************
1281 * generateChecksum : generate checksum for the facility
1283 * facName : name of facility
1285 * checksum : checksum for the facility
1286 ****************************************************************************/
1288 void generateChecksum(char* facName
,
1289 unsigned int * checksum
, sequence_t
* events
)
1296 crc
= crc32(facName
);
1297 for(pos
= 0; pos
< events
->position
; pos
++){
1298 ev
= (event_t
*)(events
->array
[pos
]);
1299 crc
= partial_crc32(ev
->name
, crc
);
1300 for(i
= 0; i
< ev
->fields
.position
; i
++) {
1301 field_t
*f
= (field_t
*)ev
->fields
.array
[i
];
1302 crc
= partial_crc32(f
->name
, crc
);
1303 crc
= getTypeChecksum(crc
, f
->type
);
1309 /*****************************************************************************
1311 * getTypeChecksum : generate checksum by type info
1313 * crc : checksum generated so far
1314 * type : type descriptor containing type info
1316 * unsigned long : checksum
1317 *****************************************************************************/
1319 unsigned long getTypeChecksum(unsigned long aCrc
, type_descriptor_t
* type
)
1321 unsigned long crc
= aCrc
;
1322 char * str
= NULL
, buf
[16];
1328 str
= intOutputTypes
[getSizeindex(type
->size
)];
1331 str
= uintOutputTypes
[getSizeindex(type
->size
)];
1334 str
= allocAndCopy("void *");
1338 str
= allocAndCopy("signed char");
1342 str
= allocAndCopy("unsigned char");
1346 str
= allocAndCopy("short");
1350 str
= allocAndCopy("unsigned short");
1354 str
= allocAndCopy("int");
1358 str
= allocAndCopy("uint");
1362 str
= allocAndCopy("long");
1366 str
= allocAndCopy("unsigned long");
1370 str
= allocAndCopy("size_t");
1374 str
= allocAndCopy("ssize_t");
1378 str
= allocAndCopy("off_t");
1382 str
= floatOutputTypes
[getSizeindex(type
->size
)];
1385 str
= allocAndCopy("string");
1389 //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]);
1390 str
= allocAndCopy("enum");
1394 sprintf(buf
,"%zu", type
->size
);
1395 str
= appendString("array ",buf
);
1399 str
= allocAndCopy("sequence ");
1403 str
= allocAndCopy("struct");
1407 str
= allocAndCopy("union");
1411 error_callback(NULL
, "named type has no definition");
1415 crc
= partial_crc32(str
,crc
);
1418 if(type
->fmt
) crc
= partial_crc32(type
->fmt
,crc
);
1420 if(type
->type
== ARRAY
){
1421 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1422 } else if(type
->type
==SEQUENCE
) {
1423 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1424 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[1])->type
);
1425 } else if(type
->type
== STRUCT
|| type
->type
== UNION
){
1426 for(pos
=0; pos
< type
->fields
.position
; pos
++){
1427 fld
= (field_t
*) type
->fields
.array
[pos
];
1428 crc
= partial_crc32(fld
->name
,crc
);
1429 crc
= getTypeChecksum(crc
, fld
->type
);
1431 }else if(type
->type
== ENUM
){
1432 for(pos
= 0; pos
< type
->labels
.position
; pos
++)
1433 crc
= partial_crc32((char*)type
->labels
.array
[pos
],crc
);
1440 /* Event type descriptors */
1441 void freeType(type_descriptor_t
* tp
)
1446 if(tp
->fmt
!= NULL
) free(tp
->fmt
);
1447 if(tp
->type
== ENUM
) {
1448 for(pos2
= 0; pos2
< tp
->labels
.position
; pos2
++) {
1449 free(tp
->labels
.array
[pos2
]);
1451 sequence_dispose(&(tp
->labels
));
1452 for(pos2
= 0; pos2
< tp
->labels_values
.position
; pos2
++) {
1453 free(tp
->labels_values
.array
[pos2
]);
1455 sequence_dispose(&(tp
->labels_values
));
1457 if(tp
->type
== STRUCT
) {
1458 for(pos2
= 0; pos2
< tp
->fields
.position
; pos2
++) {
1459 f
= (field_t
*) tp
->fields
.array
[pos2
];
1461 free(f
->description
);
1464 sequence_dispose(&(tp
->fields
));
1468 void freeNamedType(table_t
* t
)
1471 type_descriptor_t
* td
;
1473 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1474 free((char *)t
->keys
.array
[pos
]);
1475 td
= (type_descriptor_t
*)t
->values
.array
[pos
];
1481 void freeTypes(sequence_t
*t
)
1484 type_descriptor_t
*tp
;
1486 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1487 tp
= (type_descriptor_t
*)t
->array
[pos
];
1493 void freeEvents(sequence_t
*t
)
1498 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1499 ev
= (event_t
*) t
->array
[pos
];
1501 free(ev
->description
);
1502 sequence_dispose(&ev
->fields
);
1509 /* Extensible array */
1511 void sequence_init(sequence_t
*t
)
1515 t
->array
= (void **)memAlloc(t
->size
* sizeof(void *));
1518 void sequence_dispose(sequence_t
*t
)
1525 void sequence_push(sequence_t
*t
, void *elem
)
1529 if(t
->position
>= t
->size
) {
1531 t
->array
= (void **)memAlloc(t
->size
* 2 * sizeof(void *));
1532 memcpy(t
->array
, tmp
, t
->size
* sizeof(void *));
1533 t
->size
= t
->size
* 2;
1536 t
->array
[t
->position
] = elem
;
1540 void *sequence_pop(sequence_t
*t
)
1542 if(t
->position
== 0) printf("Error : trying to pop an empty sequence");
1543 return t
->array
[--t
->position
];
1547 /* Hash table API, implementation is just linear search for now */
1549 void table_init(table_t
*t
)
1551 sequence_init(&(t
->keys
));
1552 sequence_init(&(t
->values
));
1555 void table_dispose(table_t
*t
)
1557 sequence_dispose(&(t
->keys
));
1558 sequence_dispose(&(t
->values
));
1561 void table_insert(table_t
*t
, char *key
, void *value
)
1563 sequence_push(&(t
->keys
),key
);
1564 sequence_push(&(t
->values
),value
);
1567 void *table_find(table_t
*t
, char *key
)
1570 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1571 if(strcmp((char *)key
,(char *)t
->keys
.array
[pos
]) == 0)
1572 return(t
->values
.array
[pos
]);
1577 void table_insert_int(table_t
*t
, int *key
, void *value
)
1579 sequence_push(&(t
->keys
),key
);
1580 sequence_push(&(t
->values
),value
);
1583 void *table_find_int(table_t
*t
, int *key
)
1586 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1587 if(*key
== *(int *)t
->keys
.array
[pos
])
1588 return(t
->values
.array
[pos
]);
1594 /* Concatenate strings */
1596 char *appendString(char *s
, char *suffix
)
1599 if(suffix
== NULL
) return s
;
1601 tmp
= (char *)memAlloc(strlen(s
) + strlen(suffix
) + 1);
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