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
)
294 token
= getToken(in
);
295 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
300 if(!strcmp("name",token
)) {
302 car
= seekNextChar(in
);
303 if(car
== EOF
) in
->error(in
,"name was expected");
304 else if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
305 else fac
->name
= allocAndCopy(getName(in
));
306 } else if(!strcmp("arch", token
)) {
308 car
= seekNextChar(in
);
309 if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
310 else fac
->arch
= allocAndCopy(getName(in
));
315 /**************************************************************************
319 * Read the attribute from the input file.
322 * in , input file handle.
323 * f , the field to fill.
325 **************************************************************************/
327 void getFieldAttributes(parse_file_t
*in
, field_t
*f
)
335 token
= getToken(in
);
336 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
341 if(!strcmp("name",token
)) {
343 car
= seekNextChar(in
);
344 if(car
== EOF
) in
->error(in
,"name was expected");
345 else if(car
== '\"') f
->name
= allocAndCopy(getQuotedString(in
));
346 else f
->name
= allocAndCopy(getName(in
));
351 char *getNameAttribute(parse_file_t
*in
)
358 token
= getToken(in
);
359 if(!strcmp("name",token
)) {
361 car
= seekNextChar(in
);
362 if(car
== EOF
) in
->error(in
,"name was expected");
363 else if(car
== '\"') name
= allocAndCopy(getQuotedString(in
));
364 else name
= allocAndCopy(getName(in
));
371 if(name
== NULL
) in
->error(in
, "Name was expected");
377 //for <label name=label_name value=n format="..."/>, value is an option
378 //Return value : 0 : no value, 1 : has a value
379 int getValueAttribute(parse_file_t
*in
, long long *value
)
384 token
= getToken(in
);
385 if(strcmp("/",token
) == 0){
390 if(strcmp("value",token
))in
->error(in
,"value was expected");
392 token
= getToken(in
);
394 if(token
[0] == '"') {
396 token
= getToken(in
);
398 if(in
->type
== NUMBER
) {
399 *value
= strtoll(token
, NULL
, 0);
404 token
= getToken(in
);
405 if(token
[0] != '"') goto error
;
410 in
->error(in
,"incorrect size specification");
414 char * getDescription(parse_file_t
*in
)
417 char * token
, car
, *str
;
421 getLAnglebracket(in
);
423 if(strcmp("description",token
)){
424 fseek(in
->fp
, pos
, SEEK_SET
);
428 getRAnglebracket(in
);
431 while((car
= getc(in
->fp
)) != EOF
) {
432 if(car
== '<') break;
433 if(car
== '\0') continue;
434 in
->buffer
[pos
] = car
;
437 if(car
== EOF
)in
->error(in
,"not a valid description");
438 in
->buffer
[pos
] = '\0';
440 str
= allocAndCopy(in
->buffer
);
444 if(strcmp("description", token
))in
->error(in
,"not a valid description");
445 getRAnglebracket(in
);
450 /*****************************************************************************
452 * parseFacility : generate event list
454 * in : input file handle
455 * fac : empty facility
457 * fac : facility filled with event list
458 ****************************************************************************/
460 void parseFacility(parse_file_t
*in
, facility_t
* fac
)
465 getFacilityAttributes(in
, fac
);
466 if(fac
->name
== NULL
) in
->error(in
, "Attribute not named");
468 fac
->capname
= allocAndCopy(fac
->name
);
469 strupper(fac
->capname
);
470 getRAnglebracket(in
);
472 fac
->description
= getDescription(in
);
475 getLAnglebracket(in
);
477 token
= getToken(in
);
478 if(in
->type
== ENDFILE
)
479 in
->error(in
,"the definition of the facility is not finished");
481 if(strcmp("event",token
) == 0){
482 ev
= (event_t
*) memAlloc(sizeof(event_t
));
483 sequence_push(&(fac
->events
),ev
);
484 parseEvent(in
,ev
, &(fac
->unnamed_types
), &(fac
->named_types
));
485 }else if(strcmp("type",token
) == 0){
486 parseTypeDefinition(in
, &(fac
->unnamed_types
), &(fac
->named_types
));
487 }else if(in
->type
== FORWARDSLASH
){
489 }else in
->error(in
,"event or type token expected\n");
493 if(strcmp("facility",token
)) in
->error(in
,"not the end of the facility");
494 getRAnglebracket(in
); //</facility>
497 /*****************************************************************************
499 * parseEvent : generate event from event definition
501 * in : input file handle
503 * unnamed_types : array of unamed types
504 * named_types : array of named types
506 * ev : new event (parameters are passed to it)
507 ****************************************************************************/
509 void parseEvent(parse_file_t
*in
, event_t
* ev
, sequence_t
* unnamed_types
,
510 table_t
* named_types
)
515 sequence_init(&(ev
->fields
));
516 //<event name=eventtype_name>
517 getEventAttributes(in
, ev
);
518 if(ev
->name
== NULL
) in
->error(in
, "Event not named");
519 getRAnglebracket(in
);
521 //<description>...</description>
522 ev
->description
= getDescription(in
);
525 /* Events can have multiple fields. each field form at least a function
526 * parameter of the logging function. */
528 getLAnglebracket(in
);
529 token
= getToken(in
);
532 case FORWARDSLASH
: /* </event> */
534 if(strcmp("event",token
))in
->error(in
,"not an event definition");
535 getRAnglebracket(in
); //</event>
538 case NAME
: /* a field */
539 if(strcmp("field",token
))in
->error(in
,"expecting a field");
540 f
= (field_t
*)memAlloc(sizeof(field_t
));
541 sequence_push(&(ev
->fields
),f
);
542 parseFields(in
, f
, unnamed_types
, named_types
, 1);
545 in
->error(in
, "expecting </event> or <field >");
550 if(in
->type
== FORWARDSLASH
){ //</event> NOTHING
552 }else if(in
->type
== NAME
){
553 if(strcmp("struct",token
)==0 || strcmp("typeref",token
)==0){
555 ev
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
556 if(ev
->type
->type
!= STRUCT
&& ev
->type
->type
!= NONE
)
557 in
->error(in
,"type must be a struct");
558 }else in
->error(in
, "not a valid type");
560 getLAnglebracket(in
);
562 }else in
->error(in
,"not a struct type");
563 getLAnglebracket(in
);
566 if(strcmp("event",token
))in
->error(in
,"not an event definition");
567 getRAnglebracket(in
); //</event>
571 /*****************************************************************************
573 * parseField : get field infomation from buffer
575 * in : input file handle
577 * unnamed_types : array of unamed types
578 * named_types : array of named types
579 * tag : is field surrounded by a <field> </field> tag ?
580 ****************************************************************************/
582 void parseFields(parse_file_t
*in
, field_t
*f
,
583 sequence_t
* unnamed_types
,
584 table_t
* named_types
,
589 //<field name=field_name> <description> <type> </field>
590 getFieldAttributes(in
, f
);
591 if(f
->name
== NULL
) in
->error(in
, "Field not named");
592 getRAnglebracket(in
);
594 f
->description
= getDescription(in
);
596 f
->description
= NULL
;
600 getLAnglebracket(in
);
601 f
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
604 getLAnglebracket(in
);
607 if(strcmp("field",token
))in
->error(in
,"not a valid field definition");
608 getRAnglebracket(in
); //</field>
613 /*****************************************************************************
615 * parseType : get type information, type can be :
617 * int(size,fmt); uint(size,fmt); float(size,fmt);
618 * string(fmt); enum(size,fmt,(label1,label2...))
620 * array(arraySize, type); sequence(lengthSize,type)
621 * struct(field(name,type,description)...)
625 * in : input file handle
626 * inType : a type descriptor
627 * unnamed_types : array of unamed types
628 * named_types : array of named types
630 * type_descriptor* : a type descriptor
631 ****************************************************************************/
633 type_descriptor_t
*parseType(parse_file_t
*in
, type_descriptor_t
*inType
,
634 sequence_t
* unnamed_types
, table_t
* named_types
)
637 type_descriptor_t
*t
;
641 t
= (type_descriptor_t
*) memAlloc(sizeof(type_descriptor_t
));
645 sequence_push(unnamed_types
,t
);
651 if(strcmp(token
,"struct") == 0) {
653 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
654 getRAnglebracket(in
); //<struct>
655 getLAnglebracket(in
); //<field name=..>
656 token
= getToken(in
);
657 sequence_init(&(t
->fields
));
658 while(strcmp("field",token
) == 0){
659 f
= (field_t
*)memAlloc(sizeof(field_t
));
660 sequence_push(&(t
->fields
),f
);
662 parseFields(in
, f
, unnamed_types
, named_types
, 1);
665 getLAnglebracket(in
);
666 token
= getToken(in
);
668 if(strcmp("/",token
))in
->error(in
,"not a valid structure definition");
670 if(strcmp("struct",token
)!=0)
671 in
->error(in
,"not a valid structure definition");
672 getRAnglebracket(in
); //</struct>
674 else if(strcmp(token
,"union") == 0) {
676 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
677 getRAnglebracket(in
); //<union>
679 getLAnglebracket(in
); //<field name=..>
680 token
= getToken(in
);
681 sequence_init(&(t
->fields
));
682 while(strcmp("field",token
) == 0){
683 f
= (field_t
*)memAlloc(sizeof(field_t
));
684 sequence_push(&(t
->fields
),f
);
685 parseFields(in
, f
, unnamed_types
, named_types
, 1);
688 getLAnglebracket(in
);
689 token
= getToken(in
);
691 if(strcmp("/",token
))in
->error(in
,"not a valid union definition");
693 if(strcmp("union",token
)!=0)
694 in
->error(in
,"not a valid union definition");
695 getRAnglebracket(in
); //</union>
697 else if(strcmp(token
,"array") == 0) {
699 sequence_init(&(t
->fields
));
700 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
701 if(t
->size
== 0) in
->error(in
, "Array has empty size");
703 getRAnglebracket(in
); //<array size=n>
705 //getLAnglebracket(in); //<subtype>
707 f
= (field_t
*)memAlloc(sizeof(field_t
));
708 sequence_push(&(t
->fields
),f
);
709 parseFields(in
, f
, unnamed_types
, named_types
, 0);
711 //getLAnglebracket(in); //<type struct>
712 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
714 getLAnglebracket(in
); //</array>
717 if(strcmp("array",token
))in
->error(in
,"not a valid array definition");
718 getRAnglebracket(in
); //</array>
720 else if(strcmp(token
,"sequence") == 0) {
722 sequence_init(&(t
->fields
));
723 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
725 getRAnglebracket(in
); //<sequence>
727 //getLAnglebracket(in); //<sequence size type>
729 f
= (field_t
*)memAlloc(sizeof(field_t
));
730 sequence_push(&(t
->fields
),f
);
731 parseFields(in
, f
, unnamed_types
, named_types
, 0);
733 //getLAnglebracket(in); //<subtype>
735 f
= (field_t
*)memAlloc(sizeof(field_t
));
736 sequence_push(&(t
->fields
),f
);
737 parseFields(in
, f
, unnamed_types
, named_types
, 0);
739 //getLAnglebracket(in); //<type sequence>
740 //t->length_type = parseType(in, NULL, unnamed_types, named_types);
742 //getLAnglebracket(in); //<type sequence>
744 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
746 if(t
->fields
.position
< 1) in
->error(in
, "Sequence has no length type");
747 if(t
->fields
.position
< 2) in
->error(in
, "Sequence has no subtype");
748 switch(((field_t
*)t
->fields
.array
[0])->type
->type
) {
758 in
->error(in
, "Wrong length type for sequence");
761 getLAnglebracket(in
); //</sequence>
764 if(strcmp("sequence",token
))in
->error(in
,"not a valid sequence definition");
765 getRAnglebracket(in
); //</sequence>
767 else if(strcmp(token
,"enum") == 0) {
769 long long value
= -1;
772 sequence_init(&(t
->labels
));
773 sequence_init(&(t
->labels_values
));
774 sequence_init(&(t
->labels_description
));
775 t
->already_printed
= 0;
776 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
777 //if(t->size == 0) in->error(in, "Sequence has empty size");
778 //Mathieu : we fix enum size to target int size. GCC is always like this.
779 //fox copy optimisation.
780 if(t
->size
!= 0) in
->error(in
, "Enum has fixed size of target int.");
782 getRAnglebracket(in
);
784 //<label name=label1 value=n/>
785 getLAnglebracket(in
);
786 token
= getToken(in
); //"label" or "/"
787 while(strcmp("label",token
) == 0){
788 int *label_value
= malloc(sizeof(int));
792 str
= allocAndCopy(getNameAttribute(in
));
793 has_value
= getValueAttribute(in
, &loc_value
);
795 sequence_push(&(t
->labels
),str
);
797 if(has_value
) value
= loc_value
;
800 *label_value
= value
;
801 sequence_push(&(t
->labels_values
), label_value
);
804 getRAnglebracket(in
);
806 //read description if any. May be NULL.
807 str
= allocAndCopy(getDescription(in
));
808 sequence_push(&(t
->labels_description
),str
);
810 //next label definition
811 getLAnglebracket(in
);
812 token
= getToken(in
); //"label" or "/"
814 if(strcmp("/",token
))in
->error(in
, "not a valid enum definition");
816 if(strcmp("enum",token
))in
->error(in
, "not a valid enum definition");
817 getRAnglebracket(in
); //</label>
819 else if(strcmp(token
,"int_fixed") == 0) {
821 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
822 if(t
->size
== 0) in
->error(in
, "int has empty size");
824 getRAnglebracket(in
);
826 else if(strcmp(token
,"uint_fixed") == 0) {
827 t
->type
= UINT_FIXED
;
828 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
829 if(t
->size
== 0) in
->error(in
, "uint has empty size");
831 getRAnglebracket(in
);
833 else if(strcmp(token
,"char") == 0) {
835 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
838 getRAnglebracket(in
);
840 else if(strcmp(token
,"uchar") == 0) {
842 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
845 getRAnglebracket(in
);
847 else if(strcmp(token
,"short") == 0) {
849 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
852 getRAnglebracket(in
);
854 else if(strcmp(token
,"ushort") == 0) {
856 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
859 getRAnglebracket(in
);
861 else if(strcmp(token
,"int") == 0) {
863 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
865 getRAnglebracket(in
);
867 else if(strcmp(token
,"uint") == 0) {
869 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
871 getRAnglebracket(in
);
874 else if(strcmp(token
,"pointer") == 0) {
876 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
878 getRAnglebracket(in
);
880 else if(strcmp(token
,"long") == 0) {
882 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
884 getRAnglebracket(in
);
886 else if(strcmp(token
,"ulong") == 0) {
888 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
890 getRAnglebracket(in
);
892 else if(strcmp(token
,"size_t") == 0) {
894 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
896 getRAnglebracket(in
);
898 else if(strcmp(token
,"ssize_t") == 0) {
900 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
902 getRAnglebracket(in
);
904 else if(strcmp(token
,"off_t") == 0) {
906 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
908 getRAnglebracket(in
);
910 else if(strcmp(token
,"float") == 0) {
912 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
914 getRAnglebracket(in
);
916 else if(strcmp(token
,"string") == 0) {
918 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
920 getRAnglebracket(in
);
922 else if(strcmp(token
,"typeref") == 0){
923 // Must be a named type
925 sequence_pop(unnamed_types
);
926 token
= getNameAttribute(in
);
927 t
= find_named_type(token
, named_types
);
928 if(t
== NULL
) in
->error(in
,"Named referred to must be pre-declared.");
929 getForwardslash(in
); //<typeref name=type_name/>
930 getRAnglebracket(in
);
932 }else in
->error(in
,"not a valid type");
937 /*****************************************************************************
939 * find_named_type : find a named type from hash table
942 * named_types : array of named types
944 * type_descriptor * : a type descriptor
945 *****************************************************************************/
947 type_descriptor_t
* find_named_type(char *name
, table_t
* named_types
)
949 type_descriptor_t
*t
;
951 t
= table_find(named_types
,name
);
956 type_descriptor_t
* create_named_type(char *name
, table_t
* named_types
)
958 type_descriptor_t
*t
;
960 t
= (type_descriptor_t
*)memAlloc(sizeof(type_descriptor_t
));
961 t
->type_name
= allocAndCopy(name
);
964 table_insert(named_types
,t
->type_name
,t
);
965 // table_insert(named_types,allocAndCopy(name),t);
969 /*****************************************************************************
971 * parseTypeDefinition : get type information from type definition
973 * in : input file handle
974 * unnamed_types : array of unamed types
975 * named_types : array of named types
976 *****************************************************************************/
978 void parseTypeDefinition(parse_file_t
* in
, sequence_t
* unnamed_types
,
979 table_t
* named_types
)
982 type_descriptor_t
*t
;
984 token
= getNameAttribute(in
);
985 if(token
== NULL
) in
->error(in
, "Type has empty name");
986 t
= create_named_type(token
, named_types
);
988 if(t
->type
!= NONE
) in
->error(in
,"redefinition of named type");
989 getRAnglebracket(in
); //<type name=type_name>
990 getLAnglebracket(in
); //<
992 //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition");
994 parseType(in
,t
, unnamed_types
, named_types
);
997 getLAnglebracket(in
);
1000 if(strcmp("type",token
))in
->error(in
,"not a valid type definition");
1001 getRAnglebracket(in
); //</type>
1004 /**************************************************************************
1006 * getComa, getName, getNumber, getEqual
1008 * Read a token from the input file, check its type, return it scontent.
1011 * in , input file handle.
1014 * address of token content.
1016 **************************************************************************/
1018 char *getName(parse_file_t
* in
)
1022 token
= getToken(in
);
1023 // Optional descriptions
1024 // if(in->type != NAME) in->error(in,"Name token was expected");
1028 int getNumber(parse_file_t
* in
)
1032 token
= getToken(in
);
1033 if(in
->type
!= NUMBER
) in
->error(in
, "Number token was expected");
1037 char *getForwardslash(parse_file_t
* in
)
1041 token
= getToken(in
);
1042 //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
1043 /* Mathieu : final / is optional now. */
1044 if(in
->type
!= FORWARDSLASH
) ungetToken(in
);
1049 char *getLAnglebracket(parse_file_t
* in
)
1053 token
= getToken(in
);
1054 if(in
->type
!= LANGLEBRACKET
) in
->error(in
, "Left angle bracket was expected");
1058 char *getRAnglebracket(parse_file_t
* in
)
1062 token
= getToken(in
);
1063 if(in
->type
!= RANGLEBRACKET
) in
->error(in
, "Right angle bracket was expected");
1067 char *getQuotedString(parse_file_t
* in
)
1071 token
= getToken(in
);
1072 if(in
->type
!= QUOTEDSTRING
) in
->error(in
, "quoted string was expected");
1076 char * getEqual(parse_file_t
*in
)
1080 token
= getToken(in
);
1081 if(in
->type
!= EQUAL
) in
->error(in
, "equal was expected");
1085 char seekNextChar(parse_file_t
*in
)
1088 while((car
= getc(in
->fp
)) != EOF
) {
1097 /******************************************************************
1099 * getToken, ungetToken
1101 * Read a token from the input file and return its type and content.
1102 * Line numbers are accounted for and whitespace/comments are skipped.
1105 * in, input file handle.
1108 * address of token content.
1110 ******************************************************************/
1112 void ungetToken(parse_file_t
* in
)
1117 char *getToken(parse_file_t
* in
)
1121 int pos
= 0, escaped
;
1123 if(in
->unget
== 1) {
1128 /* skip whitespace and comments */
1130 while((car
= getc(fp
)) != EOF
) {
1133 if(car1
== '*') skipComment(in
);
1134 else if(car1
== '/') skipEOL(in
);
1136 car1
= ungetc(car1
,fp
);
1140 else if(car
== '\n') in
->lineno
++;
1141 else if(!isspace(car
)) break;
1149 in
->type
= FORWARDSLASH
;
1150 in
->buffer
[pos
] = car
;
1154 in
->type
= LANGLEBRACKET
;
1155 in
->buffer
[pos
] = car
;
1159 in
->type
= RANGLEBRACKET
;
1160 in
->buffer
[pos
] = car
;
1165 in
->buffer
[pos
] = car
;
1170 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1171 if(car
== '\\' && escaped
== 0) {
1172 in
->buffer
[pos
] = car
;
1177 if(car
== '"' && escaped
== 0) break;
1178 if(car
== '\n' && escaped
== 0) {
1179 in
->error(in
, "non escaped newline inside quoted string");
1181 if(car
== '\n') in
->lineno
++;
1182 in
->buffer
[pos
] = car
;
1186 if(car
== EOF
) in
->error(in
,"no ending quotemark");
1187 if(pos
== BUFFER_SIZE
) in
->error(in
, "quoted string token too large");
1188 in
->type
= QUOTEDSTRING
;
1192 in
->buffer
[pos
] = car
;
1194 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1199 in
->buffer
[pos
] = car
;
1202 if(car
== EOF
) ungetc(car
,fp
);
1203 if(pos
== BUFFER_SIZE
) in
->error(in
, "number token too large");
1206 else if(isalnum(car
) || car
== '_' || car
== '-') {
1207 in
->buffer
[0] = car
;
1209 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1210 if(!(isalnum(car
) || car
== '_' || car
== '-')) {
1214 in
->buffer
[pos
] = car
;
1217 if(car
== EOF
) ungetc(car
,fp
);
1218 if(pos
== BUFFER_SIZE
) in
->error(in
, "name token too large");
1221 else in
->error(in
, "invalid character, unrecognized token");
1223 in
->buffer
[pos
] = 0;
1227 void skipComment(parse_file_t
* in
)
1230 while((car
= getc(in
->fp
)) != EOF
) {
1231 if(car
== '\n') in
->lineno
++;
1232 else if(car
== '*') {
1234 if(car
==EOF
) break;
1235 if(car
== '/') return;
1239 if(car
== EOF
) in
->error(in
,"comment begining with '/*' has no ending '*/'");
1242 void skipEOL(parse_file_t
* in
)
1245 while((car
= getc(in
->fp
)) != EOF
) {
1251 if(car
== EOF
)ungetc(car
, in
->fp
);
1254 /*****************************************************************************
1256 * checkNamedTypesImplemented : check if all named types have definition
1257 ****************************************************************************/
1259 void checkNamedTypesImplemented(table_t
* named_types
)
1261 type_descriptor_t
*t
;
1265 for(pos
= 0 ; pos
< named_types
->values
.position
; pos
++) {
1266 t
= (type_descriptor_t
*) named_types
->values
.array
[pos
];
1267 if(t
->type
== NONE
){
1268 sprintf(str
,"named type '%s' has no definition",
1269 (char*)named_types
->keys
.array
[pos
]);
1270 error_callback(NULL
,str
);
1276 /*****************************************************************************
1278 * generateChecksum : generate checksum for the facility
1280 * facName : name of facility
1282 * checksum : checksum for the facility
1283 ****************************************************************************/
1285 void generateChecksum(char* facName
,
1286 unsigned int * checksum
, sequence_t
* events
)
1293 crc
= crc32(facName
);
1294 for(pos
= 0; pos
< events
->position
; pos
++){
1295 ev
= (event_t
*)(events
->array
[pos
]);
1296 crc
= partial_crc32(ev
->name
, crc
);
1297 for(i
= 0; i
< ev
->fields
.position
; i
++) {
1298 field_t
*f
= (field_t
*)ev
->fields
.array
[i
];
1299 crc
= partial_crc32(f
->name
, crc
);
1300 crc
= getTypeChecksum(crc
, f
->type
);
1306 /*****************************************************************************
1308 * getTypeChecksum : generate checksum by type info
1310 * crc : checksum generated so far
1311 * type : type descriptor containing type info
1313 * unsigned long : checksum
1314 *****************************************************************************/
1316 unsigned long getTypeChecksum(unsigned long aCrc
, type_descriptor_t
* type
)
1318 unsigned long crc
= aCrc
;
1319 char * str
= NULL
, buf
[16];
1325 str
= intOutputTypes
[getSizeindex(type
->size
)];
1328 str
= uintOutputTypes
[getSizeindex(type
->size
)];
1331 str
= allocAndCopy("void *");
1335 str
= allocAndCopy("signed char");
1339 str
= allocAndCopy("unsigned char");
1343 str
= allocAndCopy("short");
1347 str
= allocAndCopy("unsigned short");
1351 str
= allocAndCopy("int");
1355 str
= allocAndCopy("uint");
1359 str
= allocAndCopy("long");
1363 str
= allocAndCopy("unsigned long");
1367 str
= allocAndCopy("size_t");
1371 str
= allocAndCopy("ssize_t");
1375 str
= allocAndCopy("off_t");
1379 str
= floatOutputTypes
[getSizeindex(type
->size
)];
1382 str
= allocAndCopy("string");
1386 //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]);
1387 str
= allocAndCopy("enum");
1391 sprintf(buf
,"%zu", type
->size
);
1392 str
= appendString("array ",buf
);
1396 str
= allocAndCopy("sequence ");
1400 str
= allocAndCopy("struct");
1404 str
= allocAndCopy("union");
1408 error_callback(NULL
, "named type has no definition");
1412 crc
= partial_crc32(str
,crc
);
1415 if(type
->fmt
) crc
= partial_crc32(type
->fmt
,crc
);
1417 if(type
->type
== ARRAY
){
1418 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1419 } else if(type
->type
==SEQUENCE
) {
1420 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1421 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[1])->type
);
1422 } else if(type
->type
== STRUCT
|| type
->type
== UNION
){
1423 for(pos
=0; pos
< type
->fields
.position
; pos
++){
1424 fld
= (field_t
*) type
->fields
.array
[pos
];
1425 crc
= partial_crc32(fld
->name
,crc
);
1426 crc
= getTypeChecksum(crc
, fld
->type
);
1428 }else if(type
->type
== ENUM
){
1429 for(pos
= 0; pos
< type
->labels
.position
; pos
++)
1430 crc
= partial_crc32((char*)type
->labels
.array
[pos
],crc
);
1437 /* Event type descriptors */
1438 void freeType(type_descriptor_t
* tp
)
1443 if(tp
->fmt
!= NULL
) free(tp
->fmt
);
1444 if(tp
->type
== ENUM
) {
1445 for(pos2
= 0; pos2
< tp
->labels
.position
; pos2
++) {
1446 free(tp
->labels
.array
[pos2
]);
1448 sequence_dispose(&(tp
->labels
));
1449 for(pos2
= 0; pos2
< tp
->labels_values
.position
; pos2
++) {
1450 free(tp
->labels_values
.array
[pos2
]);
1452 sequence_dispose(&(tp
->labels_values
));
1454 if(tp
->type
== STRUCT
) {
1455 for(pos2
= 0; pos2
< tp
->fields
.position
; pos2
++) {
1456 f
= (field_t
*) tp
->fields
.array
[pos2
];
1458 free(f
->description
);
1461 sequence_dispose(&(tp
->fields
));
1465 void freeNamedType(table_t
* t
)
1468 type_descriptor_t
* td
;
1470 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1471 free((char *)t
->keys
.array
[pos
]);
1472 td
= (type_descriptor_t
*)t
->values
.array
[pos
];
1478 void freeTypes(sequence_t
*t
)
1481 type_descriptor_t
*tp
;
1483 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1484 tp
= (type_descriptor_t
*)t
->array
[pos
];
1490 void freeEvents(sequence_t
*t
)
1495 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1496 ev
= (event_t
*) t
->array
[pos
];
1498 free(ev
->description
);
1499 sequence_dispose(&ev
->fields
);
1506 /* Extensible array */
1508 void sequence_init(sequence_t
*t
)
1512 t
->array
= (void **)memAlloc(t
->size
* sizeof(void *));
1515 void sequence_dispose(sequence_t
*t
)
1522 void sequence_push(sequence_t
*t
, void *elem
)
1526 if(t
->position
>= t
->size
) {
1528 t
->array
= (void **)memAlloc(t
->size
* 2 * sizeof(void *));
1529 memcpy(t
->array
, tmp
, t
->size
* sizeof(void *));
1530 t
->size
= t
->size
* 2;
1533 t
->array
[t
->position
] = elem
;
1537 void *sequence_pop(sequence_t
*t
)
1539 if(t
->position
== 0) printf("Error : trying to pop an empty sequence");
1540 return t
->array
[--t
->position
];
1544 /* Hash table API, implementation is just linear search for now */
1546 void table_init(table_t
*t
)
1548 sequence_init(&(t
->keys
));
1549 sequence_init(&(t
->values
));
1552 void table_dispose(table_t
*t
)
1554 sequence_dispose(&(t
->keys
));
1555 sequence_dispose(&(t
->values
));
1558 void table_insert(table_t
*t
, char *key
, void *value
)
1560 sequence_push(&(t
->keys
),key
);
1561 sequence_push(&(t
->values
),value
);
1564 void *table_find(table_t
*t
, char *key
)
1567 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1568 if(strcmp((char *)key
,(char *)t
->keys
.array
[pos
]) == 0)
1569 return(t
->values
.array
[pos
]);
1574 void table_insert_int(table_t
*t
, int *key
, void *value
)
1576 sequence_push(&(t
->keys
),key
);
1577 sequence_push(&(t
->values
),value
);
1580 void *table_find_int(table_t
*t
, int *key
)
1583 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1584 if(*key
== *(int *)t
->keys
.array
[pos
])
1585 return(t
->values
.array
[pos
]);
1591 /* Concatenate strings */
1593 char *appendString(char *s
, char *suffix
)
1596 if(suffix
== NULL
) return s
;
1598 tmp
= (char *)memAlloc(strlen(s
) + strlen(suffix
) + 1);
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