3 parser.c: Generate helper declarations and functions to trace events
4 from an event description file.
6 Copyright (C) 2002, Xianxiu Yang
7 Copyright (C) 2002, Michel Dagenais
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; version 2 of the License.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 /* Extensible array container */
29 typedef struct _sequence
{
35 void sequence_init(sequence
*t
);
36 void sequence_dispose(sequence
*t
);
37 void sequence_push(sequence
*t
, void *elem
);
38 void *sequence_pop(sequence
*t
);
43 typedef struct _table
{
48 void table_init(table
*t
);
49 void table_dispose(table
*t
);
50 void table_insert(table
*t
, char *key
, void *value
);
51 void *table_find(table
*t
, char *key
);
52 void table_insert_int(table
*t
, int *key
, void *value
);
53 void *table_find_int(table
*t
, int *key
);
58 typedef enum _token_type
{
70 /* State associated with a file being parsed */
71 typedef struct _parse_file
{
80 void (*error
) (struct _parse_file
*, char *);
83 void ungetToken(parse_file
* in
);
84 gchar
*getToken(parse_file
*in
);
85 gchar
*getForwardslash(parse_file
*in
);
86 gchar
*getLAnglebracket(parse_file
*in
);
87 gchar
*getRAnglebracket(parse_file
*in
);
88 gchar
*getQuotedString(parse_file
*in
);
89 gchar
*getName(parse_file
*in
);
90 int getNumber(parse_file
*in
);
91 gchar
*getEqual(parse_file
*in
);
92 GIOStatus
seekNextChar(parse_file
*in
, gunichar
*car
);
94 void skipComment(parse_file
* in
);
95 void skipEOL(parse_file
* in
);
99 #define BUFFER_SIZE 1024
102 /* Events data types */
104 typedef enum _data_type
{
118 /* Event type descriptors */
120 typedef struct _type_descriptor
{
121 char * type_name
; //used for named type
125 sequence labels
; // for enumeration
126 sequence fields
; // for structure
127 struct _type_descriptor
*nested_type
; // for array and sequence
131 /* Fields within types */
133 typedef struct _type_fields
{
136 type_descriptor
*type
;
140 /* Events definitions */
142 typedef struct _event_t
{
145 type_descriptor
*type
;
148 typedef struct _facility_t
{
152 sequence unnamed_types
;
156 int getSize(parse_file
*in
);
157 unsigned long getTypeChecksum(unsigned long aCrc
, type_descriptor
* type
);
159 void parseFacility(parse_file
*in
, facility_t
* fac
);
160 void parseEvent(parse_file
*in
, event_t
*ev
, sequence
* unnamed_types
, table
* named_types
);
161 void parseTypeDefinition(parse_file
*in
, sequence
* unnamed_types
, table
* named_types
);
162 type_descriptor
*parseType(parse_file
*in
, type_descriptor
*t
, sequence
* unnamed_types
, table
* named_types
);
163 void parseFields(parse_file
*in
, type_descriptor
*t
, sequence
* unnamed_types
, table
* named_types
);
164 int checkNamedTypesImplemented(table
* namedTypes
);
165 type_descriptor
* find_named_type(char *name
, table
* named_types
);
166 int generateChecksum(char * facName
, guint32
* checksum
, sequence
* events
);
170 char * getNameAttribute(parse_file
*in
);
171 char * getFormatAttribute(parse_file
*in
);
172 int getSizeAttribute(parse_file
*in
);
173 int getValueAttribute(parse_file
*in
);
174 char * getValueStrAttribute(parse_file
*in
);
176 char * getDescription(parse_file
*in
);
179 static char *intOutputTypes
[] = {
180 "int8_t", "int16_t", "int32_t", "int64_t", "short int", "int", "long int" };
182 static char *uintOutputTypes
[] = {
183 "uint8_t", "uint16_t", "uint32_t", "uint64_t", "unsigned short int",
184 "unsigned int", "unsigned long int" };
186 static char *floatOutputTypes
[] = {
187 "undef", "undef", "float", "double", "undef", "float", "double" };
190 /* Dynamic memory allocation and freeing */
192 void freeTypes(sequence
*t
);
193 void freeType(type_descriptor
* td
);
194 void freeEvents(sequence
*t
);
195 void freeNamedType(table
* t
);
196 void error_callback(parse_file
*in
, char *msg
);
200 static const unsigned int crctab32
[] =
205 static inline unsigned long
206 partial_crc32_one(unsigned char c
, unsigned long crc
)
208 return crctab32
[(crc
^ c
) & 0xff] ^ (crc
>> 8);
211 static inline unsigned long
212 partial_crc32(const char *s
, unsigned long crc
)
215 crc
= partial_crc32_one(*s
++, crc
);
219 static inline unsigned long
222 return partial_crc32(s
, 0xffffffff) ^ 0xffffffff;
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