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
)
188 token
= getToken(in
);
189 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
194 if(!strcmp("format",token
)) {
196 t
->fmt
= allocAndCopy(getQuotedString(in
));
197 //} else if(!strcmp("name",token)) {
199 // car = seekNextChar(in);
200 // if(car == EOF) in->error(in,"name was expected");
201 // else if(car == '\"') t->type_name = allocAndCopy(getQuotedString(in));
202 // else t->type_name = allocAndCopy(getName(in));
203 } else if(!strcmp("size",token
)) {
205 t
->size
= getSize(in
);
206 } else if(!strcmp("custom_write", token
)) {
212 /**************************************************************************
216 * Read the attribute from the input file.
219 * in , input file handle.
220 * ev , the event to fill.
222 **************************************************************************/
224 void getEventAttributes(parse_file_t
*in
, event_t
*ev
)
231 ev
->per_tracefile
= 0;
234 token
= getToken(in
);
235 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
240 if(!strcmp("name",token
)) {
242 car
= seekNextChar(in
);
243 if(car
== EOF
) in
->error(in
,"name was expected");
244 else if(car
== '\"') ev
->name
= allocAndCopy(getQuotedString(in
));
245 else ev
->name
= allocAndCopy(getName(in
));
246 } else if(!strcmp("per_trace", token
)) {
248 } else if(!strcmp("per_tracefile", token
)) {
249 ev
->per_tracefile
= 1;
255 /**************************************************************************
257 * getFacilityAttributes
259 * Read the attribute from the input file.
262 * in , input file handle.
263 * fac , the facility to fill.
265 **************************************************************************/
267 void getFacilityAttributes(parse_file_t
*in
, facility_t
*fac
)
276 token
= getToken(in
);
277 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
282 if(!strcmp("name",token
)) {
284 car
= seekNextChar(in
);
285 if(car
== EOF
) in
->error(in
,"name was expected");
286 else if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
287 else fac
->name
= allocAndCopy(getName(in
));
288 } else if(!strcmp("arch", token
)) {
290 car
= seekNextChar(in
);
291 if(car
== '\"') fac
->name
= allocAndCopy(getQuotedString(in
));
292 else fac
->arch
= allocAndCopy(getName(in
));
297 /**************************************************************************
301 * Read the attribute from the input file.
304 * in , input file handle.
305 * f , the field to fill.
307 **************************************************************************/
309 void getFieldAttributes(parse_file_t
*in
, field_t
*f
)
317 token
= getToken(in
);
318 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
323 if(!strcmp("name",token
)) {
325 car
= seekNextChar(in
);
326 if(car
== EOF
) in
->error(in
,"name was expected");
327 else if(car
== '\"') f
->name
= allocAndCopy(getQuotedString(in
));
328 else f
->name
= allocAndCopy(getName(in
));
333 char *getNameAttribute(parse_file_t
*in
)
340 token
= getToken(in
);
341 if(strcmp("/",token
) == 0 || strcmp(">",token
) == 0){
346 if(!strcmp("name",token
)) {
348 car
= seekNextChar(in
);
349 if(car
== EOF
) in
->error(in
,"name was expected");
350 else if(car
== '\"') name
= allocAndCopy(getQuotedString(in
));
351 else name
= allocAndCopy(getName(in
));
354 if(name
== NULL
) in
->error(in
, "Name was expected");
361 //for <label name=label_name value=n format="..."/>, value is an option
362 char * getValueStrAttribute(parse_file_t
*in
)
366 token
= getToken(in
);
367 if(strcmp("/",token
) == 0){
372 if(strcmp("value",token
))in
->error(in
,"value was expected");
374 token
= getToken(in
);
375 if(in
->type
!= NUMBER
) in
->error(in
,"number was expected");
379 char * getDescription(parse_file_t
*in
)
382 char * token
, car
, *str
;
386 getLAnglebracket(in
);
388 if(strcmp("description",token
)){
389 fseek(in
->fp
, pos
, SEEK_SET
);
393 getRAnglebracket(in
);
396 while((car
= getc(in
->fp
)) != EOF
) {
397 if(car
== '<') break;
398 if(car
== '\0') continue;
399 in
->buffer
[pos
] = car
;
402 if(car
== EOF
)in
->error(in
,"not a valid description");
403 in
->buffer
[pos
] = '\0';
405 str
= allocAndCopy(in
->buffer
);
409 if(strcmp("description", token
))in
->error(in
,"not a valid description");
410 getRAnglebracket(in
);
415 /*****************************************************************************
417 * parseFacility : generate event list
419 * in : input file handle
420 * fac : empty facility
422 * fac : facility filled with event list
423 ****************************************************************************/
425 void parseFacility(parse_file_t
*in
, facility_t
* fac
)
430 getFacilityAttributes(in
, fac
);
431 if(fac
->name
== NULL
) in
->error(in
, "Attribute not named");
433 fac
->capname
= allocAndCopy(fac
->name
);
434 strupper(fac
->capname
);
435 getRAnglebracket(in
);
437 fac
->description
= getDescription(in
);
440 getLAnglebracket(in
);
442 token
= getToken(in
);
443 if(in
->type
== ENDFILE
)
444 in
->error(in
,"the definition of the facility is not finished");
446 if(strcmp("event",token
) == 0){
447 ev
= (event_t
*) memAlloc(sizeof(event_t
));
448 sequence_push(&(fac
->events
),ev
);
449 parseEvent(in
,ev
, &(fac
->unnamed_types
), &(fac
->named_types
));
450 }else if(strcmp("type",token
) == 0){
451 parseTypeDefinition(in
, &(fac
->unnamed_types
), &(fac
->named_types
));
452 }else if(in
->type
== FORWARDSLASH
){
454 }else in
->error(in
,"event or type token expected\n");
458 if(strcmp("facility",token
)) in
->error(in
,"not the end of the facility");
459 getRAnglebracket(in
); //</facility>
462 /*****************************************************************************
464 * parseEvent : generate event from event definition
466 * in : input file handle
468 * unnamed_types : array of unamed types
469 * named_types : array of named types
471 * ev : new event (parameters are passed to it)
472 ****************************************************************************/
474 void parseEvent(parse_file_t
*in
, event_t
* ev
, sequence_t
* unnamed_types
,
475 table_t
* named_types
)
480 sequence_init(&(ev
->fields
));
481 //<event name=eventtype_name>
482 getEventAttributes(in
, ev
);
483 if(ev
->name
== NULL
) in
->error(in
, "Event not named");
484 getRAnglebracket(in
);
486 //<description>...</description>
487 ev
->description
= getDescription(in
);
490 /* Events can have multiple fields. each field form at least a function
491 * parameter of the logging function. */
493 getLAnglebracket(in
);
494 token
= getToken(in
);
497 case FORWARDSLASH
: /* </event> */
499 if(strcmp("event",token
))in
->error(in
,"not an event definition");
500 getRAnglebracket(in
); //</event>
503 case NAME
: /* a field */
504 if(strcmp("field",token
))in
->error(in
,"expecting a field");
505 f
= (field_t
*)memAlloc(sizeof(field_t
));
506 sequence_push(&(ev
->fields
),f
);
507 parseFields(in
, f
, unnamed_types
, named_types
, 1);
510 in
->error(in
, "expecting </event> or <field >");
515 if(in
->type
== FORWARDSLASH
){ //</event> NOTHING
517 }else if(in
->type
== NAME
){
518 if(strcmp("struct",token
)==0 || strcmp("typeref",token
)==0){
520 ev
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
521 if(ev
->type
->type
!= STRUCT
&& ev
->type
->type
!= NONE
)
522 in
->error(in
,"type must be a struct");
523 }else in
->error(in
, "not a valid type");
525 getLAnglebracket(in
);
527 }else in
->error(in
,"not a struct type");
528 getLAnglebracket(in
);
531 if(strcmp("event",token
))in
->error(in
,"not an event definition");
532 getRAnglebracket(in
); //</event>
536 /*****************************************************************************
538 * parseField : get field infomation from buffer
540 * in : input file handle
542 * unnamed_types : array of unamed types
543 * named_types : array of named types
544 * tag : is field surrounded by a <field> </field> tag ?
545 ****************************************************************************/
547 void parseFields(parse_file_t
*in
, field_t
*f
,
548 sequence_t
* unnamed_types
,
549 table_t
* named_types
,
554 //<field name=field_name> <description> <type> </field>
555 getFieldAttributes(in
, f
);
556 if(f
->name
== NULL
) in
->error(in
, "Field not named");
557 getRAnglebracket(in
);
559 f
->description
= getDescription(in
);
563 getLAnglebracket(in
);
564 f
->type
= parseType(in
,NULL
, unnamed_types
, named_types
);
567 getLAnglebracket(in
);
570 if(strcmp("field",token
))in
->error(in
,"not a valid field definition");
571 getRAnglebracket(in
); //</field>
576 /*****************************************************************************
578 * parseType : get type information, type can be :
580 * int(size,fmt); uint(size,fmt); float(size,fmt);
581 * string(fmt); enum(size,fmt,(label1,label2...))
583 * array(arraySize, type); sequence(lengthSize,type)
584 * struct(field(name,type,description)...)
588 * in : input file handle
589 * inType : a type descriptor
590 * unnamed_types : array of unamed types
591 * named_types : array of named types
593 * type_descriptor* : a type descriptor
594 ****************************************************************************/
596 type_descriptor_t
*parseType(parse_file_t
*in
, type_descriptor_t
*inType
,
597 sequence_t
* unnamed_types
, table_t
* named_types
)
600 type_descriptor_t
*t
;
604 t
= (type_descriptor_t
*) memAlloc(sizeof(type_descriptor_t
));
608 sequence_push(unnamed_types
,t
);
614 if(strcmp(token
,"struct") == 0) {
616 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
617 getRAnglebracket(in
); //<struct>
618 getLAnglebracket(in
); //<field name=..>
619 token
= getToken(in
);
620 sequence_init(&(t
->fields
));
621 while(strcmp("field",token
) == 0){
622 f
= (field_t
*)memAlloc(sizeof(field_t
));
623 sequence_push(&(t
->fields
),f
);
625 parseFields(in
, f
, unnamed_types
, named_types
, 1);
628 getLAnglebracket(in
);
629 token
= getToken(in
);
631 if(strcmp("/",token
))in
->error(in
,"not a valid structure definition");
633 if(strcmp("struct",token
)!=0)
634 in
->error(in
,"not a valid structure definition");
635 getRAnglebracket(in
); //</struct>
637 else if(strcmp(token
,"union") == 0) {
639 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
640 getRAnglebracket(in
); //<union>
642 getLAnglebracket(in
); //<field name=..>
643 token
= getToken(in
);
644 sequence_init(&(t
->fields
));
645 while(strcmp("field",token
) == 0){
646 f
= (field_t
*)memAlloc(sizeof(field_t
));
647 sequence_push(&(t
->fields
),f
);
648 parseFields(in
, f
, unnamed_types
, named_types
, 1);
651 getLAnglebracket(in
);
652 token
= getToken(in
);
654 if(strcmp("/",token
))in
->error(in
,"not a valid union definition");
656 if(strcmp("union",token
)!=0)
657 in
->error(in
,"not a valid union definition");
658 getRAnglebracket(in
); //</union>
660 else if(strcmp(token
,"array") == 0) {
662 sequence_init(&(t
->fields
));
663 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
664 if(t
->size
== 0) in
->error(in
, "Array has empty size");
666 getRAnglebracket(in
); //<array size=n>
668 //getLAnglebracket(in); //<subtype>
670 f
= (field_t
*)memAlloc(sizeof(field_t
));
671 sequence_push(&(t
->fields
),f
);
672 parseFields(in
, f
, unnamed_types
, named_types
, 0);
674 //getLAnglebracket(in); //<type struct>
675 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
677 getLAnglebracket(in
); //</array>
680 if(strcmp("array",token
))in
->error(in
,"not a valid array definition");
681 getRAnglebracket(in
); //</array>
683 else if(strcmp(token
,"sequence") == 0) {
685 sequence_init(&(t
->fields
));
686 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
688 getRAnglebracket(in
); //<sequence>
690 //getLAnglebracket(in); //<sequence size type>
692 f
= (field_t
*)memAlloc(sizeof(field_t
));
693 sequence_push(&(t
->fields
),f
);
694 parseFields(in
, f
, unnamed_types
, named_types
, 0);
696 //getLAnglebracket(in); //<subtype>
698 f
= (field_t
*)memAlloc(sizeof(field_t
));
699 sequence_push(&(t
->fields
),f
);
700 parseFields(in
, f
, unnamed_types
, named_types
, 0);
702 //getLAnglebracket(in); //<type sequence>
703 //t->length_type = parseType(in, NULL, unnamed_types, named_types);
705 //getLAnglebracket(in); //<type sequence>
707 //t->nested_type = parseType(in, NULL, unnamed_types, named_types);
709 if(t
->fields
.position
< 1) in
->error(in
, "Sequence has no length type");
710 if(t
->fields
.position
< 2) in
->error(in
, "Sequence has no subtype");
711 switch(((field_t
*)t
->fields
.array
[0])->type
->type
) {
721 in
->error(in
, "Wrong length type for sequence");
724 getLAnglebracket(in
); //</sequence>
727 if(strcmp("sequence",token
))in
->error(in
,"not a valid sequence definition");
728 getRAnglebracket(in
); //</sequence>
730 else if(strcmp(token
,"enum") == 0) {
735 sequence_init(&(t
->labels
));
736 sequence_init(&(t
->labels_values
));
737 sequence_init(&(t
->labels_description
));
738 t
->already_printed
= 0;
739 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
740 //if(t->size == 0) in->error(in, "Sequence has empty size");
741 //Mathieu : we fix enum size to target int size. GCC is always like this.
742 //fox copy optimisation.
743 if(t
->size
!= 0) in
->error(in
, "Enum has fixed size of target int.");
745 getRAnglebracket(in
);
747 //<label name=label1 value=n/>
748 getLAnglebracket(in
);
749 token
= getToken(in
); //"label" or "/"
750 while(strcmp("label",token
) == 0){
751 int *label_value
= malloc(sizeof(int));
753 str
= allocAndCopy(getNameAttribute(in
));
754 token
= getValueStrAttribute(in
);
756 sequence_push(&(t
->labels
),str
);
758 if(token
) value
= strtol(token
, NULL
, 0);
761 *label_value
= value
;
762 sequence_push(&(t
->labels_values
), label_value
);
765 getRAnglebracket(in
);
767 //read description if any. May be NULL.
768 str
= allocAndCopy(getDescription(in
));
769 sequence_push(&(t
->labels_description
),str
);
771 //next label definition
772 getLAnglebracket(in
);
773 token
= getToken(in
); //"label" or "/"
775 if(strcmp("/",token
))in
->error(in
, "not a valid enum definition");
777 if(strcmp("enum",token
))in
->error(in
, "not a valid enum definition");
778 getRAnglebracket(in
); //</label>
780 else if(strcmp(token
,"int_fixed") == 0) {
782 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
783 if(t
->size
== 0) in
->error(in
, "int has empty size");
785 getRAnglebracket(in
);
787 else if(strcmp(token
,"uint_fixed") == 0) {
788 t
->type
= UINT_FIXED
;
789 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
790 if(t
->size
== 0) in
->error(in
, "uint has empty size");
792 getRAnglebracket(in
);
794 else if(strcmp(token
,"char") == 0) {
796 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
799 getRAnglebracket(in
);
801 else if(strcmp(token
,"uchar") == 0) {
803 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
806 getRAnglebracket(in
);
808 else if(strcmp(token
,"short") == 0) {
810 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
813 getRAnglebracket(in
);
815 else if(strcmp(token
,"ushort") == 0) {
817 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
820 getRAnglebracket(in
);
822 else if(strcmp(token
,"int") == 0) {
824 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
826 getRAnglebracket(in
);
828 else if(strcmp(token
,"uint") == 0) {
830 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
832 getRAnglebracket(in
);
835 else if(strcmp(token
,"pointer") == 0) {
837 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
839 getRAnglebracket(in
);
841 else if(strcmp(token
,"long") == 0) {
843 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
845 getRAnglebracket(in
);
847 else if(strcmp(token
,"ulong") == 0) {
849 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
851 getRAnglebracket(in
);
853 else if(strcmp(token
,"size_t") == 0) {
855 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
857 getRAnglebracket(in
);
859 else if(strcmp(token
,"ssize_t") == 0) {
861 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
863 getRAnglebracket(in
);
865 else if(strcmp(token
,"off_t") == 0) {
867 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
869 getRAnglebracket(in
);
871 else if(strcmp(token
,"float") == 0) {
873 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
875 getRAnglebracket(in
);
877 else if(strcmp(token
,"string") == 0) {
879 getTypeAttributes(in
, t
, unnamed_types
, named_types
);
881 getRAnglebracket(in
);
883 else if(strcmp(token
,"typeref") == 0){
884 // Must be a named type
886 sequence_pop(unnamed_types
);
887 token
= getNameAttribute(in
);
888 t
= find_named_type(token
, named_types
);
889 if(t
== NULL
) in
->error(in
,"Named referred to must be pre-declared.");
890 getForwardslash(in
); //<typeref name=type_name/>
891 getRAnglebracket(in
);
893 }else in
->error(in
,"not a valid type");
898 /*****************************************************************************
900 * find_named_type : find a named type from hash table
903 * named_types : array of named types
905 * type_descriptor * : a type descriptor
906 *****************************************************************************/
908 type_descriptor_t
* find_named_type(char *name
, table_t
* named_types
)
910 type_descriptor_t
*t
;
912 t
= table_find(named_types
,name
);
917 type_descriptor_t
* create_named_type(char *name
, table_t
* named_types
)
919 type_descriptor_t
*t
;
921 t
= (type_descriptor_t
*)memAlloc(sizeof(type_descriptor_t
));
922 t
->type_name
= allocAndCopy(name
);
925 table_insert(named_types
,t
->type_name
,t
);
926 // table_insert(named_types,allocAndCopy(name),t);
930 /*****************************************************************************
932 * parseTypeDefinition : get type information from type definition
934 * in : input file handle
935 * unnamed_types : array of unamed types
936 * named_types : array of named types
937 *****************************************************************************/
939 void parseTypeDefinition(parse_file_t
* in
, sequence_t
* unnamed_types
,
940 table_t
* named_types
)
943 type_descriptor_t
*t
;
945 token
= getNameAttribute(in
);
946 if(token
== NULL
) in
->error(in
, "Type has empty name");
947 t
= create_named_type(token
, named_types
);
949 if(t
->type
!= NONE
) in
->error(in
,"redefinition of named type");
950 getRAnglebracket(in
); //<type name=type_name>
951 getLAnglebracket(in
); //<
953 //MD ??if(strcmp("struct",token))in->error(in,"not a valid type definition");
955 parseType(in
,t
, unnamed_types
, named_types
);
958 getLAnglebracket(in
);
961 if(strcmp("type",token
))in
->error(in
,"not a valid type definition");
962 getRAnglebracket(in
); //</type>
965 /**************************************************************************
967 * getComa, getName, getNumber, getEqual
969 * Read a token from the input file, check its type, return it scontent.
972 * in , input file handle.
975 * address of token content.
977 **************************************************************************/
979 char *getName(parse_file_t
* in
)
983 token
= getToken(in
);
984 // Optional descriptions
985 // if(in->type != NAME) in->error(in,"Name token was expected");
989 int getNumber(parse_file_t
* in
)
993 token
= getToken(in
);
994 if(in
->type
!= NUMBER
) in
->error(in
, "Number token was expected");
998 char *getForwardslash(parse_file_t
* in
)
1002 token
= getToken(in
);
1003 //if(in->type != FORWARDSLASH) in->error(in, "forward slash token was expected");
1004 /* Mathieu : final / is optional now. */
1005 if(in
->type
!= FORWARDSLASH
) ungetToken(in
);
1010 char *getLAnglebracket(parse_file_t
* in
)
1014 token
= getToken(in
);
1015 if(in
->type
!= LANGLEBRACKET
) in
->error(in
, "Left angle bracket was expected");
1019 char *getRAnglebracket(parse_file_t
* in
)
1023 token
= getToken(in
);
1024 if(in
->type
!= RANGLEBRACKET
) in
->error(in
, "Right angle bracket was expected");
1028 char *getQuotedString(parse_file_t
* in
)
1032 token
= getToken(in
);
1033 if(in
->type
!= QUOTEDSTRING
) in
->error(in
, "quoted string was expected");
1037 char * getEqual(parse_file_t
*in
)
1041 token
= getToken(in
);
1042 if(in
->type
!= EQUAL
) in
->error(in
, "equal was expected");
1046 char seekNextChar(parse_file_t
*in
)
1049 while((car
= getc(in
->fp
)) != EOF
) {
1058 /******************************************************************
1060 * getToken, ungetToken
1062 * Read a token from the input file and return its type and content.
1063 * Line numbers are accounted for and whitespace/comments are skipped.
1066 * in, input file handle.
1069 * address of token content.
1071 ******************************************************************/
1073 void ungetToken(parse_file_t
* in
)
1078 char *getToken(parse_file_t
* in
)
1082 int pos
= 0, escaped
;
1084 if(in
->unget
== 1) {
1089 /* skip whitespace and comments */
1091 while((car
= getc(fp
)) != EOF
) {
1094 if(car1
== '*') skipComment(in
);
1095 else if(car1
== '/') skipEOL(in
);
1097 car1
= ungetc(car1
,fp
);
1101 else if(car
== '\n') in
->lineno
++;
1102 else if(!isspace(car
)) break;
1110 in
->type
= FORWARDSLASH
;
1111 in
->buffer
[pos
] = car
;
1115 in
->type
= LANGLEBRACKET
;
1116 in
->buffer
[pos
] = car
;
1120 in
->type
= RANGLEBRACKET
;
1121 in
->buffer
[pos
] = car
;
1126 in
->buffer
[pos
] = car
;
1131 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1132 if(car
== '\\' && escaped
== 0) {
1133 in
->buffer
[pos
] = car
;
1138 if(car
== '"' && escaped
== 0) break;
1139 if(car
== '\n' && escaped
== 0) {
1140 in
->error(in
, "non escaped newline inside quoted string");
1142 if(car
== '\n') in
->lineno
++;
1143 in
->buffer
[pos
] = car
;
1147 if(car
== EOF
) in
->error(in
,"no ending quotemark");
1148 if(pos
== BUFFER_SIZE
) in
->error(in
, "quoted string token too large");
1149 in
->type
= QUOTEDSTRING
;
1153 in
->buffer
[pos
] = car
;
1155 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1160 in
->buffer
[pos
] = car
;
1163 if(car
== EOF
) ungetc(car
,fp
);
1164 if(pos
== BUFFER_SIZE
) in
->error(in
, "number token too large");
1167 else if(isalnum(car
) || car
== '_' || car
== '-') {
1168 in
->buffer
[0] = car
;
1170 while((car
= getc(fp
)) != EOF
&& pos
< BUFFER_SIZE
) {
1171 if(!(isalnum(car
) || car
== '_' || car
== '-')) {
1175 in
->buffer
[pos
] = car
;
1178 if(car
== EOF
) ungetc(car
,fp
);
1179 if(pos
== BUFFER_SIZE
) in
->error(in
, "name token too large");
1182 else in
->error(in
, "invalid character, unrecognized token");
1184 in
->buffer
[pos
] = 0;
1188 void skipComment(parse_file_t
* in
)
1191 while((car
= getc(in
->fp
)) != EOF
) {
1192 if(car
== '\n') in
->lineno
++;
1193 else if(car
== '*') {
1195 if(car
==EOF
) break;
1196 if(car
== '/') return;
1200 if(car
== EOF
) in
->error(in
,"comment begining with '/*' has no ending '*/'");
1203 void skipEOL(parse_file_t
* in
)
1206 while((car
= getc(in
->fp
)) != EOF
) {
1212 if(car
== EOF
)ungetc(car
, in
->fp
);
1215 /*****************************************************************************
1217 * checkNamedTypesImplemented : check if all named types have definition
1218 ****************************************************************************/
1220 void checkNamedTypesImplemented(table_t
* named_types
)
1222 type_descriptor_t
*t
;
1226 for(pos
= 0 ; pos
< named_types
->values
.position
; pos
++) {
1227 t
= (type_descriptor_t
*) named_types
->values
.array
[pos
];
1228 if(t
->type
== NONE
){
1229 sprintf(str
,"named type '%s' has no definition",
1230 (char*)named_types
->keys
.array
[pos
]);
1231 error_callback(NULL
,str
);
1237 /*****************************************************************************
1239 * generateChecksum : generate checksum for the facility
1241 * facName : name of facility
1243 * checksum : checksum for the facility
1244 ****************************************************************************/
1246 void generateChecksum(char* facName
,
1247 unsigned int * checksum
, sequence_t
* events
)
1254 crc
= crc32(facName
);
1255 for(pos
= 0; pos
< events
->position
; pos
++){
1256 ev
= (event_t
*)(events
->array
[pos
]);
1257 crc
= partial_crc32(ev
->name
, crc
);
1258 for(i
= 0; i
< ev
->fields
.position
; i
++) {
1259 field_t
*f
= (field_t
*)ev
->fields
.array
[i
];
1260 crc
= partial_crc32(f
->name
, crc
);
1261 crc
= getTypeChecksum(crc
, f
->type
);
1267 /*****************************************************************************
1269 * getTypeChecksum : generate checksum by type info
1271 * crc : checksum generated so far
1272 * type : type descriptor containing type info
1274 * unsigned long : checksum
1275 *****************************************************************************/
1277 unsigned long getTypeChecksum(unsigned long aCrc
, type_descriptor_t
* type
)
1279 unsigned long crc
= aCrc
;
1280 char * str
= NULL
, buf
[16];
1286 str
= intOutputTypes
[getSizeindex(type
->size
)];
1289 str
= uintOutputTypes
[getSizeindex(type
->size
)];
1292 str
= allocAndCopy("void *");
1296 str
= allocAndCopy("signed char");
1300 str
= allocAndCopy("unsigned char");
1304 str
= allocAndCopy("short");
1308 str
= allocAndCopy("unsigned short");
1312 str
= allocAndCopy("int");
1316 str
= allocAndCopy("uint");
1320 str
= allocAndCopy("long");
1324 str
= allocAndCopy("unsigned long");
1328 str
= allocAndCopy("size_t");
1332 str
= allocAndCopy("ssize_t");
1336 str
= allocAndCopy("off_t");
1340 str
= floatOutputTypes
[getSizeindex(type
->size
)];
1343 str
= allocAndCopy("string");
1347 //str = appendString("enum ", uintOutputTypes[getSizeindex(type->size)]);
1348 str
= allocAndCopy("enum");
1352 sprintf(buf
,"%zu", type
->size
);
1353 str
= appendString("array ",buf
);
1357 str
= allocAndCopy("sequence ");
1361 str
= allocAndCopy("struct");
1365 str
= allocAndCopy("union");
1369 error_callback(NULL
, "named type has no definition");
1373 crc
= partial_crc32(str
,crc
);
1376 if(type
->fmt
) crc
= partial_crc32(type
->fmt
,crc
);
1378 if(type
->type
== ARRAY
){
1379 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1380 } else if(type
->type
==SEQUENCE
) {
1381 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[0])->type
);
1382 crc
= getTypeChecksum(crc
,((field_t
*)type
->fields
.array
[1])->type
);
1383 } else if(type
->type
== STRUCT
|| type
->type
== UNION
){
1384 for(pos
=0; pos
< type
->fields
.position
; pos
++){
1385 fld
= (field_t
*) type
->fields
.array
[pos
];
1386 crc
= partial_crc32(fld
->name
,crc
);
1387 crc
= getTypeChecksum(crc
, fld
->type
);
1389 }else if(type
->type
== ENUM
){
1390 for(pos
= 0; pos
< type
->labels
.position
; pos
++)
1391 crc
= partial_crc32((char*)type
->labels
.array
[pos
],crc
);
1398 /* Event type descriptors */
1399 void freeType(type_descriptor_t
* tp
)
1404 if(tp
->fmt
!= NULL
) free(tp
->fmt
);
1405 if(tp
->type
== ENUM
) {
1406 for(pos2
= 0; pos2
< tp
->labels
.position
; pos2
++) {
1407 free(tp
->labels
.array
[pos2
]);
1409 sequence_dispose(&(tp
->labels
));
1410 for(pos2
= 0; pos2
< tp
->labels_values
.position
; pos2
++) {
1411 free(tp
->labels_values
.array
[pos2
]);
1413 sequence_dispose(&(tp
->labels_values
));
1415 if(tp
->type
== STRUCT
) {
1416 for(pos2
= 0; pos2
< tp
->fields
.position
; pos2
++) {
1417 f
= (field_t
*) tp
->fields
.array
[pos2
];
1419 free(f
->description
);
1422 sequence_dispose(&(tp
->fields
));
1426 void freeNamedType(table_t
* t
)
1429 type_descriptor_t
* td
;
1431 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1432 free((char *)t
->keys
.array
[pos
]);
1433 td
= (type_descriptor_t
*)t
->values
.array
[pos
];
1439 void freeTypes(sequence_t
*t
)
1442 type_descriptor_t
*tp
;
1444 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1445 tp
= (type_descriptor_t
*)t
->array
[pos
];
1451 void freeEvents(sequence_t
*t
)
1456 for(pos
= 0 ; pos
< t
->position
; pos
++) {
1457 ev
= (event_t
*) t
->array
[pos
];
1459 free(ev
->description
);
1460 sequence_dispose(&ev
->fields
);
1467 /* Extensible array */
1469 void sequence_init(sequence_t
*t
)
1473 t
->array
= (void **)memAlloc(t
->size
* sizeof(void *));
1476 void sequence_dispose(sequence_t
*t
)
1483 void sequence_push(sequence_t
*t
, void *elem
)
1487 if(t
->position
>= t
->size
) {
1489 t
->array
= (void **)memAlloc(t
->size
* 2 * sizeof(void *));
1490 memcpy(t
->array
, tmp
, t
->size
* sizeof(void *));
1491 t
->size
= t
->size
* 2;
1494 t
->array
[t
->position
] = elem
;
1498 void *sequence_pop(sequence_t
*t
)
1500 return t
->array
[t
->position
--];
1504 /* Hash table API, implementation is just linear search for now */
1506 void table_init(table_t
*t
)
1508 sequence_init(&(t
->keys
));
1509 sequence_init(&(t
->values
));
1512 void table_dispose(table_t
*t
)
1514 sequence_dispose(&(t
->keys
));
1515 sequence_dispose(&(t
->values
));
1518 void table_insert(table_t
*t
, char *key
, void *value
)
1520 sequence_push(&(t
->keys
),key
);
1521 sequence_push(&(t
->values
),value
);
1524 void *table_find(table_t
*t
, char *key
)
1527 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1528 if(strcmp((char *)key
,(char *)t
->keys
.array
[pos
]) == 0)
1529 return(t
->values
.array
[pos
]);
1534 void table_insert_int(table_t
*t
, int *key
, void *value
)
1536 sequence_push(&(t
->keys
),key
);
1537 sequence_push(&(t
->values
),value
);
1540 void *table_find_int(table_t
*t
, int *key
)
1543 for(pos
= 0 ; pos
< t
->keys
.position
; pos
++) {
1544 if(*key
== *(int *)t
->keys
.array
[pos
])
1545 return(t
->values
.array
[pos
]);
1551 /* Concatenate strings */
1553 char *appendString(char *s
, char *suffix
)
1556 if(suffix
== NULL
) return s
;
1558 tmp
= (char *)memAlloc(strlen(s
) + strlen(suffix
) + 1);
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