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 token
= getToken(in
);
102 if(in
->type
== NUMBER
) {
103 return strtoull(token
, NULL
, 0);
105 in
->error(in
,"incorrect size specification");
109 /*****************************************************************************
111 * error_callback : print out error info
113 * in : input file handle
114 * msg : message to be printed
115 ****************************************************************************/
117 void error_callback(parse_file_t
*in
, char *msg
)
120 printf("Error in file %s, line %d: %s\n", in
->name
, in
->lineno
, msg
);
127 /*****************************************************************************
129 * memAlloc : allocate memory
131 * size : required memory size
133 * void * : pointer to allocate memory or NULL
134 ****************************************************************************/
136 void * memAlloc(int size
)
139 if(size
== 0) return NULL
;
142 printf("Failed to allocate memory");
148 /*****************************************************************************
150 * allocAndCopy : allocate memory and initialize it
152 * str : string to be put in memory
154 * char * : pointer to allocate memory or NULL
155 ****************************************************************************/
157 char *allocAndCopy(char *str
)
160 if(str
== NULL
) return NULL
;
161 addr
= (char *)memAlloc(strlen(str
)+1);
166 /**************************************************************************
170 * Read the attribute from the input file.
173 * in , input file handle.
174 * t , the type descriptor to fill.
176 **************************************************************************/
178 void getTypeAttributes(parse_file_t
*in
, type_descriptor_t
*t
,
179 sequence_t
* unnamed_types
, table_t
* named_types
)
187 token
= getToken(in
);
188 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
193 if(!strcmp("format",token
)) {
195 t
->fmt
= allocAndCopy(getQuotedString(in
));
196 //} else if(!strcmp("name",token)) {
198 // car = seekNextChar(in);
199 // if(car == EOF) in->error(in,"name was expected");
200 // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in));
201 // else t->type_name = allocAndCopy(getName(in));
202 } else if(!strcmp("size",token
)) {
204 t
->size
= getSize(in
);
209 /**************************************************************************
213 * Read the attribute from the input file.
216 * in , input file handle.
217 * ev , the event to fill.
219 **************************************************************************/
221 void getEventAttributes(parse_file_t
*in
, event_t
*ev
)
228 ev
->per_tracefile
= 0;
231 token
= getToken(in
);
232 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
237 if(!strcmp("name",token
)) {
239 car
= seekNextChar(in
);
240 if(car
== EOF
) in
->error(in
,"name was expected");
241 else if(car
== '\"') ev
->name
= allocAndCopy(getQuotedString(in
));
242 else ev
->name
= allocAndCopy(getName(in
));
243 } else if(!strcmp("per_trace", token
)) {
245 } else if(!strcmp("per_tracefile", token
)) {
246 ev
->per_tracefile
= 1;
252 /**************************************************************************
254 * getFacilityAttributes
256 * Read the attribute from the input file.
259 * in , input file handle.
260 * fac , the facility to fill.
262 **************************************************************************/
264 void getFacilityAttributes(parse_file_t
*in
, facility_t
*fac
)
273 token
= getToken(in
);
274 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
279 if(!strcmp("name",token
)) {
281 car
= seekNextChar(in
);
282 if(car
== EOF
) in
->error(in
,"name was expected");
283 else if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
284 else fac
->name
= allocAndCopy(getName(in
));
285 } else if(!strcmp("arch", token
)) {
287 car
= seekNextChar(in
);
288 if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
289 else fac
->arch
= allocAndCopy(getName(in
));
294 /**************************************************************************
298 * Read the attribute from the input file.
301 * in , input file handle.
302 * f , the field to fill.
304 **************************************************************************/
306 void getFieldAttributes(parse_file_t
*in
, field_t
*f
)
314 token
= getToken(in
);
315 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
320 if(!strcmp("name",token
)) {
322 car
= seekNextChar(in
);
323 if(car
== EOF
) in
->error(in
,"name was expected");
324 else if(car
== '\"') f
->name
= allocAndCopy(getQuotedString(in
));
325 else f
->name
= allocAndCopy(getName(in
));
330 char *getNameAttribute(parse_file_t
*in
)
337 token
= getToken(in
);
338 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
343 if(!strcmp("name",token
)) {
345 car
= seekNextChar(in
);
346 if(car
== EOF
) in
->error(in
,"name was expected");
347 else if(car
== '\"') name
= allocAndCopy(getQuotedString(in
));
348 else name
= allocAndCopy(getName(in
));
351 if(name
== NULL
) in
->error(in
, "Name was expected");
358 //for <label name=label_name value=n format="..."/>, value is an option
359 char * getValueStrAttribute(parse_file_t
*in
)
363 token
= getToken(in
);
364 if(strcmp("/",token
) == 0){
369 if(strcmp("value",token
))in
->error(in
,"value was expected");
371 token
= getToken(in
);
372 if(in
->type
!= NUMBER
) in
->error(in
,"number was expected");
376 char * getDescription(parse_file_t
*in
)
379 char * token
, car
, *str
;
383 getLAnglebracket(in
);
385 if(strcmp("description",token
)){
386 fseek(in
->fp
, pos
, SEEK_SET
);
390 getRAnglebracket(in
);
393 while((car
= getc(in
->fp
)) != EOF
) {
394 if(car
== '<') break;
395 if(car
== '\0') continue;
396 in
->buffer
[pos
] = car
;
399 if(car
== EOF
)in
->error(in
,"not a valid description");
400 in
->buffer
[pos
] = '\0';
402 str
= allocAndCopy(in
->buffer
);
406 if(strcmp("description", token
))in
->error(in
,"not a valid description");
407 getRAnglebracket(in
);
412 /*****************************************************************************
414 * parseFacility : generate event list
416 * in : input file handle
417 * fac : empty facility
419 * fac : facility filled with event list
420 ****************************************************************************/
422 void parseFacility(parse_file_t
*in
, facility_t
* fac
)
427 getFacilityAttributes(in
, fac
);
428 if(fac
->name
== NULL
) in
->error(in
, "Attribute not named");
430 fac
->capname
= allocAndCopy(fac
->name
);
431 strupper(fac
->capname
);
432 getRAnglebracket(in
);
434 fac
->description
= getDescription(in
);
437 getLAnglebracket(in
);
439 token
= getToken(in
);
440 if(in
->type
== ENDFILE
)
441 in
->error(in
,"the definition of the facility is not finished");
443 if(strcmp("event",token
) == 0){
444 ev
= (event_t
*) memAlloc(sizeof(event_t
));
445 sequence_push(&(fac
->events
),ev
);
446 parseEvent(in
,ev
, &(fac
->unnamed_types
), &(fac
->named_types
));
447 }else if(strcmp("type",token
) == 0){
448 parseTypeDefinition(in
, &(fac
->unnamed_types
), &(fac
->named_types
));
449 }else if(in
->type
== FORWARDSLASH
){
451 }else in
->error(in
,"event or type token expected\n");
455 if(strcmp("facility",token
)) in
->error(in
,"not the end of the facility");
456 getRAnglebracket(in
); //</facility>
459 /*****************************************************************************
461 * parseEvent : generate event from event definition
463 * in : input file handle
465 * unnamed_types : array of unamed types
466 * named_types : array of named types
468 * ev : new event (parameters are passed to it)
469 ****************************************************************************/
471 void parseEvent(parse_file_t
*in
, event_t
* ev
, sequence_t
* unnamed_types
,
472 table_t
* named_types
)
477 sequence_init(&(ev
->fields
));
478 //<event name=eventtype_name>
479 getEventAttributes(in
, ev
);
480 if(ev
->name
== NULL
) in
->error(in
, "Event not named");
481 getRAnglebracket(in
);
483 //<description>...</description>
484 ev
->description
= getDescription(in
);
487 /* Events can have multiple fields. each field form at least a function
488 * parameter of the logging function. */
490 getLAnglebracket(in
);
491 token
= getToken(in
);
494 case FORWARDSLASH
: /* </event> */
496 if(strcmp("event",token
))in
->error(in
,"not an event definition");
497 getRAnglebracket(in
); //</event>
500 case NAME
: /* a field */
501 if(strcmp("field",token
))in
->error(in
,"expecting a field");
502 f
= (field_t
*)memAlloc(sizeof(field_t
));
503 sequence_push(&(ev
->fields
),f
);
504 parseFields(in
, f
, unnamed_types
, named_types
, 1);
507 in
->error(in
, "expecting </event> or <field >");
512 if(in
->type
== FORWARDSLASH
){ //</event> NOTHING
514 }else if(in
->type
== NAME
){
515 if(strcmp("struct",token
)==0 || strcmp("typeref",token
)==0){
517 ev
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
518 if(ev
->type
->type
!= STRUCT
&& ev
->type
->type
!= NONE
)
519 in
->error(in
,"type must be a struct");
520 }else in
->error(in
, "not a valid type");
522 getLAnglebracket(in
);
524 }else in
->error(in
,"not a struct type");
525 getLAnglebracket(in
);
528 if(strcmp("event",token
))in
->error(in
,"not an event definition");
529 getRAnglebracket(in
); //</event>
533 /*****************************************************************************
535 * parseField : get field infomation from buffer
537 * in : input file handle
539 * unnamed_types : array of unamed types
540 * named_types : array of named types
541 * tag : is field surrounded by a <field> </field> tag ?
542 ****************************************************************************/
544 void parseFields(parse_file_t
*in
, field_t
*f
,
545 sequence_t
* unnamed_types
,
546 table_t
* named_types
,
551 //<field name=field_name> <description> <type> </field>
552 getFieldAttributes(in
, f
);
553 if(f
->name
== NULL
) in
->error(in
, "Field not named");
554 getRAnglebracket(in
);
556 f
->description
= getDescription(in
);
560 getLAnglebracket(in
);
561 f
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
564 getLAnglebracket(in
);
567 if(strcmp("field",token
))in
->error(in
,"not a valid field definition");
568 getRAnglebracket(in
); //</field>
573 /*****************************************************************************
575 * parseType : get type information, type can be :
577 * int(size,fmt); uint(size,fmt); float(size,fmt);
578 * string(fmt); enum(size,fmt,(label1,label2...))
580 * array(arraySize, type); sequence(lengthSize,type)
581 * struct(field(name,type,description)...)
585 * in : input file handle
586 * inType : a type descriptor
587 * unnamed_types : array of unamed types
588 * named_types : array of named types
590 * type_descriptor* : a type descriptor
591 ****************************************************************************/
593 type_descriptor_t
*parseType(parse_file_t
*in
, type_descriptor_t
*inType
,
594 sequence_t
* unnamed_types
, table_t
* named_types
)
597 type_descriptor_t
*t
;
601 t
= (type_descriptor_t
*) memAlloc(sizeof(type_descriptor_t
));
605 sequence_push(unnamed_types
,t
);
611 if(strcmp(token
,"struct") == 0) {
613 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
614 getRAnglebracket(in
); //<struct>
615 getLAnglebracket(in
); //<field name=..>
616 token
= getToken(in
);
617 sequence_init(&(t
->fields
));
618 while(strcmp("field",token
) == 0){
619 f
= (field_t
*)memAlloc(sizeof(field_t
));
620 sequence_push(&(t
->fields
),f
);
622 parseFields(in
, f
, unnamed_types
, named_types
, 1);
625 getLAnglebracket(in
);
626 token
= getToken(in
);
628 if(strcmp("/",token
))in
->error(in
,"not a valid structure definition");
630 if(strcmp("struct",token
)!=0)
631 in
->error(in
,"not a valid structure definition");
632 getRAnglebracket(in
); //</struct>
634 else if(strcmp(token
,"union") == 0) {
636 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
637 getRAnglebracket(in
); //<union>
639 getLAnglebracket(in
); //<field name=..>
640 token
= getToken(in
);
641 sequence_init(&(t
->fields
));
642 while(strcmp("field",token
) == 0){
643 f
= (field_t
*)memAlloc(sizeof(field_t
));
644 sequence_push(&(t
->fields
),f
);
645 parseFields(in
, f
, unnamed_types
, named_types
, 1);
648 getLAnglebracket(in
);
649 token
= getToken(in
);
651 if(strcmp("/",token
))in
->error(in
,"not a valid union definition");
653 if(strcmp("union",token
)!=0)
654 in
->error(in
,"not a valid union definition");
655 getRAnglebracket(in
); //</union>
657 else if(strcmp(token
,"array") == 0) {
659 sequence_init(&(t
->fields
));
660 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
661 if(t
->size
== 0) in
->error(in
, "Array has empty size");
663 getRAnglebracket(in
); //<array size=n>
665 //getLAnglebracket(in); //<subtype>
667 f
= (field_t
*)memAlloc(sizeof(field_t
));
668 sequence_push(&(t
->fields
),f
);
669 parseFields(in
, f
, unnamed_types
, named_types
, 0);
671 //getLAnglebracket(in); //<type struct>
672 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
674 getLAnglebracket(in
); //</array>
677 if(strcmp("array",token
))in
->error(in
,"not a valid array definition");
678 getRAnglebracket(in
); //</array>
680 else if(strcmp(token
,"sequence") == 0) {
682 sequence_init(&(t
->fields
));
683 //getTypeAttributes(in, t, unnamed_types, named_types);
684 //getForwardslash(in);
685 getRAnglebracket(in
); //<sequence>
687 //getLAnglebracket(in); //<sequence size type>
689 f
= (field_t
*)memAlloc(sizeof(field_t
));
690 sequence_push(&(t
->fields
),f
);
691 parseFields(in
, f
, unnamed_types
, named_types
, 0);
693 //getLAnglebracket(in); //<subtype>
695 f
= (field_t
*)memAlloc(sizeof(field_t
));
696 sequence_push(&(t
->fields
),f
);
697 parseFields(in
, f
, unnamed_types
, named_types
, 0);
699 //getLAnglebracket(in); //<type sequence>
700 //t->length_type = parseType(in, NULL, unnamed_types, named_types);
702 //getLAnglebracket(in); //<type sequence>
704 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
706 if(t
->fields
.position
< 1) in
->error(in
, "Sequence has no length type");
707 if(t
->fields
.position
< 2) in
->error(in
, "Sequence has no subtype");
708 switch(((field_t
*)t
->fields
.array
[0])->type
->type
) {
718 in
->error(in
, "Wrong length type for sequence");
721 getLAnglebracket(in
); //</sequence>
724 if(strcmp("sequence",token
))in
->error(in
,"not a valid sequence definition");
725 getRAnglebracket(in
); //</sequence>
727 else if(strcmp(token
,"enum") == 0) {
732 sequence_init(&(t
->labels
));
733 sequence_init(&(t
->labels_values
));
734 sequence_init(&(t
->labels_description
));
735 t
->already_printed
= 0;
736 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
737 //if(t->size == 0) in->error(in, "Sequence has empty size");
738 //Mathieu : we fix enum size to target int size. GCC is always like this.
739 //fox copy optimisation.
740 if(t
->size
!= 0) in
->error(in
, "Enum has fixed size of target int.");
742 getRAnglebracket(in
);
744 //<label name=label1 value=n/>
745 getLAnglebracket(in
);
746 token
= getToken(in
); //"label" or "/"
747 while(strcmp("label",token
) == 0){
748 int *label_value
= malloc(sizeof(int));
750 str
= allocAndCopy(getNameAttribute(in
));
751 token
= getValueStrAttribute(in
);
753 sequence_push(&(t
->labels
),str
);
755 if(token
) value
= strtol(token
, NULL
, 0);
758 *label_value
= value
;
759 sequence_push(&(t
->labels_values
), label_value
);
762 getRAnglebracket(in
);
764 //read description if any. May be NULL.
765 str
= allocAndCopy(getDescription(in
));
766 sequence_push(&(t
->labels_description
),str
);
768 //next label definition
769 getLAnglebracket(in
);
770 token
= getToken(in
); //"label" or "/"
772 if(strcmp("/",token
))in
->error(in
, "not a valid enum definition");
774 if(strcmp("enum",token
))in
->error(in
, "not a valid enum definition");
775 getRAnglebracket(in
); //</label>
777 else if(strcmp(token
,"int_fixed") == 0) {
779 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
780 if(t
->size
== 0) in
->error(in
, "int has empty size");
782 getRAnglebracket(in
);
784 else if(strcmp(token
,"uint_fixed") == 0) {
785 t
->type
= UINT_FIXED
;
786 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
787 if(t
->size
== 0) in
->error(in
, "uint has empty size");
789 getRAnglebracket(in
);
791 else if(strcmp(token
,"char") == 0) {
793 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
796 getRAnglebracket(in
);
798 else if(strcmp(token
,"uchar") == 0) {
800 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
803 getRAnglebracket(in
);
805 else if(strcmp(token
,"short") == 0) {
807 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
810 getRAnglebracket(in
);
812 else if(strcmp(token
,"ushort") == 0) {
814 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
817 getRAnglebracket(in
);
819 else if(strcmp(token
,"int") == 0) {
821 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
823 getRAnglebracket(in
);
825 else if(strcmp(token
,"uint") == 0) {
827 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
829 getRAnglebracket(in
);
832 else if(strcmp(token
,"pointer") == 0) {
834 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
836 getRAnglebracket(in
);
838 else if(strcmp(token
,"long") == 0) {
840 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
842 getRAnglebracket(in
);
844 else if(strcmp(token
,"ulong") == 0) {
846 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
848 getRAnglebracket(in
);
850 else if(strcmp(token
,"size_t") == 0) {
852 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
854 getRAnglebracket(in
);
856 else if(strcmp(token
,"ssize_t") == 0) {
858 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
860 getRAnglebracket(in
);
862 else if(strcmp(token
,"off_t") == 0) {
864 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
866 getRAnglebracket(in
);
868 else if(strcmp(token
,"float") == 0) {
870 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
872 getRAnglebracket(in
);
874 else if(strcmp(token
,"string") == 0) {
876 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
878 getRAnglebracket(in
);
880 else if(strcmp(token
,"typeref") == 0){
881 // Must be a named type
883 sequence_pop(unnamed_types
);
884 token
= getNameAttribute(in
);
885 t
= find_named_type(token
, named_types
);
886 if(t
== NULL
) in
->error(in
,"Named referred to must be pre-declared.");
887 getForwardslash(in
); //<typeref name=type_name/>
888 getRAnglebracket(in
);
890 }else in
->error(in
,"not a valid type");
895 /*****************************************************************************
897 * find_named_type : find a named type from hash table
900 * named_types : array of named types
902 * type_descriptor * : a type descriptor
903 *****************************************************************************/
905 type_descriptor_t
* find_named_type(char *name
, table_t
* named_types
)
907 type_descriptor_t
*t
;
909 t
= table_find(named_types
,name
);
914 type_descriptor_t
* create_named_type(char *name
, table_t
* named_types
)
916 type_descriptor_t
*t
;
918 t
= (type_descriptor_t
*)memAlloc(sizeof(type_descriptor_t
));
919 t
->type_name
= allocAndCopy(name
);
922 table_insert(named_types
,t
->type_name
,t
);
923 // table_insert(named_types,allocAndCopy(name),t);
927 /*****************************************************************************
929 * parseTypeDefinition : get type information from type definition
931 * in : input file handle
932 * unnamed_types : array of unamed types
933 * named_types : array of named types
934 *****************************************************************************/
936 void parseTypeDefinition(parse_file_t
* in
, sequence_t
* unnamed_types
,
937 table_t
* named_types
)
940 type_descriptor_t
*t
;
942 token
= getNameAttribute(in
);
943 if(token
== NULL
) in
->error(in
, "Type has empty name");
944 t
= create_named_type(token
, named_types
);
946 if(t
->type
!= NONE
) in
->error(in
,"redefinition of named type");
947 getRAnglebracket(in
); //<type name=type_name>
948 getLAnglebracket(in
); //<
950 //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition");
952 parseType(in
,t
, unnamed_types
, named_types
);
955 getLAnglebracket(in
);
958 if(strcmp("type",token
))in
->error(in
,"not a valid type definition");
959 getRAnglebracket(in
); //</type>
962 /**************************************************************************
964 * getComa, getName, getNumber, getEqual
966 * Read a token from the input file, check its type, return it scontent.
969 * in , input file handle.
972 * address of token content.
974 **************************************************************************/
976 char *getName(parse_file_t
* in
)
980 token
= getToken(in
);
981 // Optional descriptions
982 // if(in->type != NAME) in->error(in,"Name token was expected");
986 int getNumber(parse_file_t
* in
)
990 token
= getToken(in
);
991 if(in
->type
!= NUMBER
) in
->error(in
, "Number token was expected");
995 char *getForwardslash(parse_file_t
* in
)
999 token
= getToken(in
);
1000 //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
1001 /* Mathieu : final / is optional now. */
1002 if(in
->type
!= FORWARDSLASH
) ungetToken(in
);
1007 char *getLAnglebracket(parse_file_t
* in
)
1011 token
= getToken(in
);
1012 if(in
->type
!= LANGLEBRACKET
) in
->error(in
, "Left angle bracket was expected");
1016 char *getRAnglebracket(parse_file_t
* in
)
1020 token
= getToken(in
);
1021 if(in
->type
!= RANGLEBRACKET
) in
->error(in
, "Right angle bracket was expected");
1025 char *getQuotedString(parse_file_t
* in
)
1029 token
= getToken(in
);
1030 if(in
->type
!= QUOTEDSTRING
) in
->error(in
, "quoted string was expected");
1034 char * getEqual(parse_file_t
*in
)
1038 token
= getToken(in
);
1039 if(in
->type
!= EQUAL
) in
->error(in
, "equal was expected");
1043 char seekNextChar(parse_file_t
*in
)
1046 while((car
= getc(in
->fp
)) != EOF
) {
1055 /******************************************************************
1057 * getToken, ungetToken
1059 * Read a token from the input file and return its type and content.
1060 * Line numbers are accounted for and whitespace/comments are skipped.
1063 * in, input file handle.
1066 * address of token content.
1068 ******************************************************************/
1070 void ungetToken(parse_file_t
* in
)
1075 char *getToken(parse_file_t
* in
)
1079 int pos
= 0, escaped
;
1081 if(in
->unget
== 1) {
1086 /* skip whitespace and comments */
1088 while((car
= getc(fp
)) != EOF
) {
1091 if(car1
== '*') skipComment(in
);
1092 else if(car1
== '/') skipEOL(in
);
1094 car1
= ungetc(car1
,fp
);
1098 else if(car
== '\n') in
->lineno
++;
1099 else if(!isspace(car
)) break;
1107 in
->type
= FORWARDSLASH
;
1108 in
->buffer
[pos
] = car
;
1112 in
->type
= LANGLEBRACKET
;
1113 in
->buffer
[pos
] = car
;
1117 in
->type
= RANGLEBRACKET
;
1118 in
->buffer
[pos
] = car
;
1123 in
->buffer
[pos
] = car
;
1128 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1129 if(car
== '\\' && escaped
== 0) {
1130 in
->buffer
[pos
] = car
;
1135 if(car
== '"' && escaped
== 0) break;
1136 if(car
== '\n' && escaped
== 0) {
1137 in
->error(in
, "non escaped newline inside quoted string");
1139 if(car
== '\n') in
->lineno
++;
1140 in
->buffer
[pos
] = car
;
1144 if(car
== EOF
) in
->error(in
,"no ending quotemark");
1145 if(pos
== BUFFER_SIZE
) in
->error(in
, "quoted string token too large");
1146 in
->type
= QUOTEDSTRING
;
1150 in
->buffer
[pos
] = car
;
1152 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1157 in
->buffer
[pos
] = car
;
1160 if(car
== EOF
) ungetc(car
,fp
);
1161 if(pos
== BUFFER_SIZE
) in
->error(in
, "number token too large");
1164 else if(isalnum(car
) || car
== '_' || car
== '-') {
1165 in
->buffer
[0] = car
;
1167 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1168 if(!(isalnum(car
) || car
== '_' || car
== '-')) {
1172 in
->buffer
[pos
] = car
;
1175 if(car
== EOF
) ungetc(car
,fp
);
1176 if(pos
== BUFFER_SIZE
) in
->error(in
, "name token too large");
1179 else in
->error(in
, "invalid character, unrecognized token");
1181 in
->buffer
[pos
] = 0;
1185 void skipComment(parse_file_t
* in
)
1188 while((car
= getc(in
->fp
)) != EOF
) {
1189 if(car
== '\n') in
->lineno
++;
1190 else if(car
== '*') {
1192 if(car
==EOF
) break;
1193 if(car
== '/') return;
1197 if(car
== EOF
) in
->error(in
,"comment begining with '/*' has no ending '*/'");
1200 void skipEOL(parse_file_t
* in
)
1203 while((car
= getc(in
->fp
)) != EOF
) {
1209 if(car
== EOF
)ungetc(car
, in
->fp
);
1212 /*****************************************************************************
1214 * checkNamedTypesImplemented : check if all named types have definition
1215 ****************************************************************************/
1217 void checkNamedTypesImplemented(table_t
* named_types
)
1219 type_descriptor_t
*t
;
1223 for(pos
= 0 ; pos
< named_types
->values
.position
; pos
++) {
1224 t
= (type_descriptor_t
*) named_types
->values
.array
[pos
];
1225 if(t
->type
== NONE
){
1226 sprintf(str
,"named type '%s' has no definition",
1227 (char*)named_types
->keys
.array
[pos
]);
1228 error_callback(NULL
,str
);
1234 /*****************************************************************************
1236 * generateChecksum : generate checksum for the facility
1238 * facName : name of facility
1240 * checksum : checksum for the facility
1241 ****************************************************************************/
1243 void generateChecksum(char* facName
,
1244 unsigned int * checksum
, sequence_t
* events
)
1251 crc
= crc32(facName
);
1252 for(pos
= 0; pos
< events
->position
; pos
++){
1253 ev
= (event_t
*)(events
->array
[pos
]);
1254 crc
= partial_crc32(ev
->name
, crc
);
1255 for(i
= 0; i
< ev
->fields
.position
; i
++) {
1256 field_t
*f
= (field_t
*)ev
->fields
.array
[i
];
1257 crc
= partial_crc32(f
->name
, crc
);
1258 crc
= getTypeChecksum(crc
, f
->type
);
1264 /*****************************************************************************
1266 * getTypeChecksum : generate checksum by type info
1268 * crc : checksum generated so far
1269 * type : type descriptor containing type info
1271 * unsigned long : checksum
1272 *****************************************************************************/
1274 unsigned long getTypeChecksum(unsigned long aCrc
, type_descriptor_t
* type
)
1276 unsigned long crc
= aCrc
;
1277 char * str
= NULL
, buf
[16];
1283 str
= intOutputTypes
[getSizeindex(type
->size
)];
1286 str
= uintOutputTypes
[getSizeindex(type
->size
)];
1289 str
= allocAndCopy("void *");
1293 str
= allocAndCopy("signed char");
1297 str
= allocAndCopy("unsigned char");
1301 str
= allocAndCopy("short");
1305 str
= allocAndCopy("unsigned short");
1309 str
= allocAndCopy("int");
1313 str
= allocAndCopy("uint");
1317 str
= allocAndCopy("long");
1321 str
= allocAndCopy("unsigned long");
1325 str
= allocAndCopy("size_t");
1329 str
= allocAndCopy("ssize_t");
1333 str
= allocAndCopy("off_t");
1337 str
= floatOutputTypes
[getSizeindex(type
->size
)];
1340 str
= allocAndCopy("string");
1344 //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]);
1345 str
= allocAndCopy("enum");
1349 sprintf(buf
,"%zu", type
->size
);
1350 str
= appendString("array ",buf
);
1354 str
= allocAndCopy("sequence ");
1358 str
= allocAndCopy("struct");
1362 str
= allocAndCopy("union");
1366 error_callback(NULL
, "named type has no definition");
1370 crc
= partial_crc32(str
,crc
);
1373 if(type
->fmt
) crc
= partial_crc32(type
->fmt
,crc
);
1375 if(type
->type
== ARRAY
){
1376 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1377 } else if(type
->type
==SEQUENCE
) {
1378 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1379 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[1])->type
);
1380 } else if(type
->type
== STRUCT
|| type
->type
== UNION
){
1381 for(pos
=0; pos
< type
->fields
.position
; pos
++){
1382 fld
= (field_t
*) type
->fields
.array
[pos
];
1383 crc
= partial_crc32(fld
->name
,crc
);
1384 crc
= getTypeChecksum(crc
, fld
->type
);
1386 }else if(type
->type
== ENUM
){
1387 for(pos
= 0; pos
< type
->labels
.position
; pos
++)
1388 crc
= partial_crc32((char*)type
->labels
.array
[pos
],crc
);
1395 /* Event type descriptors */
1396 void freeType(type_descriptor_t
* tp
)
1401 if(tp
->fmt
!= NULL
) free(tp
->fmt
);
1402 if(tp
->type
== ENUM
) {
1403 for(pos2
= 0; pos2
< tp
->labels
.position
; pos2
++) {
1404 free(tp
->labels
.array
[pos2
]);
1406 sequence_dispose(&(tp
->labels
));
1407 for(pos2
= 0; pos2
< tp
->labels_values
.position
; pos2
++) {
1408 free(tp
->labels_values
.array
[pos2
]);
1410 sequence_dispose(&(tp
->labels_values
));
1412 if(tp
->type
== STRUCT
) {
1413 for(pos2
= 0; pos2
< tp
->fields
.position
; pos2
++) {
1414 f
= (field_t
*) tp
->fields
.array
[pos2
];
1416 free(f
->description
);
1419 sequence_dispose(&(tp
->fields
));
1423 void freeNamedType(table_t
* t
)
1426 type_descriptor_t
* td
;
1428 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1429 free((char *)t
->keys
.array
[pos
]);
1430 td
= (type_descriptor_t
*)t
->values
.array
[pos
];
1436 void freeTypes(sequence_t
*t
)
1439 type_descriptor_t
*tp
;
1441 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1442 tp
= (type_descriptor_t
*)t
->array
[pos
];
1448 void freeEvents(sequence_t
*t
)
1453 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1454 ev
= (event_t
*) t
->array
[pos
];
1456 free(ev
->description
);
1457 sequence_dispose(&ev
->fields
);
1464 /* Extensible array */
1466 void sequence_init(sequence_t
*t
)
1470 t
->array
= (void **)memAlloc(t
->size
* sizeof(void *));
1473 void sequence_dispose(sequence_t
*t
)
1480 void sequence_push(sequence_t
*t
, void *elem
)
1484 if(t
->position
>= t
->size
) {
1486 t
->array
= (void **)memAlloc(t
->size
* 2 * sizeof(void *));
1487 memcpy(t
->array
, tmp
, t
->size
* sizeof(void *));
1488 t
->size
= t
->size
* 2;
1491 t
->array
[t
->position
] = elem
;
1495 void *sequence_pop(sequence_t
*t
)
1497 return t
->array
[t
->position
--];
1501 /* Hash table API, implementation is just linear search for now */
1503 void table_init(table_t
*t
)
1505 sequence_init(&(t
->keys
));
1506 sequence_init(&(t
->values
));
1509 void table_dispose(table_t
*t
)
1511 sequence_dispose(&(t
->keys
));
1512 sequence_dispose(&(t
->values
));
1515 void table_insert(table_t
*t
, char *key
, void *value
)
1517 sequence_push(&(t
->keys
),key
);
1518 sequence_push(&(t
->values
),value
);
1521 void *table_find(table_t
*t
, char *key
)
1524 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1525 if(strcmp((char *)key
,(char *)t
->keys
.array
[pos
]) == 0)
1526 return(t
->values
.array
[pos
]);
1531 void table_insert_int(table_t
*t
, int *key
, void *value
)
1533 sequence_push(&(t
->keys
),key
);
1534 sequence_push(&(t
->values
),value
);
1537 void *table_find_int(table_t
*t
, int *key
)
1540 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1541 if(*key
== *(int *)t
->keys
.array
[pos
])
1542 return(t
->values
.array
[pos
]);
1548 /* Concatenate strings */
1550 char *appendString(char *s
, char *suffix
)
1553 if(suffix
== NULL
) return s
;
1555 tmp
= (char *)memAlloc(strlen(s
) + strlen(suffix
) + 1);
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