5a1bc7d3 |
1 | |
2 | /* Extensible array container */ |
3 | |
4 | typedef struct _sequence { |
5 | int size; |
6 | int position; |
7 | void **array; |
8 | } sequence; |
9 | |
10 | void sequence_init(sequence *t); |
11 | void sequence_dispose(sequence *t); |
12 | void sequence_push(sequence *t, void *elem); |
13 | void *sequence_pop(sequence *t); |
14 | |
15 | |
16 | /* Hash table */ |
17 | |
18 | typedef struct _table { |
19 | sequence keys; |
20 | sequence values; |
21 | } table; |
22 | |
23 | void table_init(table *t); |
24 | void table_dispose(table *t); |
25 | void table_insert(table *t, char *key, void *value); |
26 | void *table_find(table *t, char *key); |
27 | |
28 | |
29 | /* Token types */ |
30 | |
31 | typedef enum _token_type { |
32 | ENDFILE, |
33 | COMA, |
34 | LPARENTHESIS, |
35 | RPARENTHESIS, |
36 | SEMICOLON, |
37 | EQUAL, |
38 | QUOTEDSTRING, |
39 | NUMBER, |
40 | NAME |
41 | } token_type; |
42 | |
43 | |
44 | /* State associated with a file being parsed */ |
45 | typedef struct _parse_file { |
46 | char *name; |
47 | FILE * fp; |
48 | int lineno; |
49 | char *buffer; |
50 | token_type type; |
51 | int unget; |
52 | void (*error) (struct _parse_file *, char *); |
53 | } parse_file; |
54 | |
55 | void ungetToken(parse_file * in); |
56 | char *getToken(parse_file *in); |
57 | char *getComa(parse_file *in); |
58 | char *getLParenthesis(parse_file *in); |
59 | char *getRParenthesis(parse_file *in); |
60 | char *getSemiColon(parse_file *in); |
61 | char *getQuotedString(parse_file *in); |
62 | char *getName(parse_file *in); |
63 | int getNumber(parse_file *in); |
64 | char * getEqual(parse_file *in); |
65 | |
66 | void skipComment(parse_file * in); |
67 | void skipEOL(parse_file * in); |
68 | int isalpha(char car); |
69 | int isalnum(char car); |
70 | |
71 | /* Some constants */ |
72 | |
73 | static const int BUFFER_SIZE = 1024; |
74 | |
75 | |
76 | /* Events data types */ |
77 | |
78 | typedef enum _data_type { |
79 | INT, |
80 | UINT, |
81 | FLOAT, |
82 | STRING, |
83 | ENUM, |
84 | ARRAY, |
85 | SEQUENCE, |
86 | STRUCT, |
87 | NONE |
88 | } data_type; |
89 | |
90 | |
91 | /* Event type descriptors */ |
92 | |
93 | typedef struct _type_descriptor { |
94 | data_type type; |
95 | char *fmt; |
96 | int size; |
97 | sequence labels; // for enumeration |
98 | sequence fields; // for structure |
99 | struct _type_descriptor *nested_type; // for array and sequence |
100 | } type_descriptor; |
101 | |
102 | |
103 | /* Fields within types */ |
104 | |
105 | typedef struct _field{ |
106 | char *name; |
107 | char *description; |
108 | type_descriptor *type; |
109 | } field; |
110 | |
111 | |
112 | /* Events definitions */ |
113 | |
114 | typedef struct _event { |
115 | char *name; |
116 | char *description; |
117 | type_descriptor *type; |
118 | int nested; |
119 | } event; |
120 | |
121 | int getSize(parse_file *in); |
122 | unsigned long getTypeChecksum(unsigned long aCrc, type_descriptor * type, int * nestedStruct); |
123 | |
124 | void parseEvent(parse_file *in, event *ev, sequence * unnamed_types, table * named_types); |
125 | void parseTypeDefinition(parse_file *in, sequence * unnamed_types, table * named_types); |
126 | type_descriptor *parseType(parse_file *in, type_descriptor *t, sequence * unnamed_types, table * named_types); |
127 | void parseFields(parse_file *in, type_descriptor *t, sequence * unnamed_types, table * named_types); |
128 | void checkNamedTypesImplemented(table * namedTypes); |
129 | type_descriptor * find_named_type(char *name, table * named_types); |
130 | void generateChecksum(char * facName, unsigned long * checksum, sequence * events); |
131 | |
132 | |
133 | |
134 | static char *intOutputTypes[] = { |
135 | "int8_t", "int16_t", "int32_t", "int64_t", "short int", "int", "long int" }; |
136 | |
137 | static char *uintOutputTypes[] = { |
138 | "uint8_t", "uint16_t", "uint32_t", "uint64_t", "unsigned short int", |
139 | "unsigned int", "unsigned long int" }; |
140 | |
141 | static char *floatOutputTypes[] = { |
142 | "undef", "undef", "float", "double", "undef", "float", "double" }; |
143 | |
144 | |
145 | /* Dynamic memory allocation and freeing */ |
146 | |
147 | void * memAlloc(int size); |
148 | char *allocAndCopy(char * str); |
149 | char *appendString(char *s, char *suffix); |
150 | void freeTypes(sequence *t); |
151 | void freeType(type_descriptor * td); |
152 | void freeEvents(sequence *t); |
153 | void freeNamedType(table * t); |
154 | void error_callback(parse_file *in, char *msg); |
155 | |
156 | |
157 | //checksum part |
158 | static const unsigned int crctab32[] = |
159 | { |
160 | #include "crc32.tab" |
161 | }; |
162 | |
163 | static inline unsigned long |
164 | partial_crc32_one(unsigned char c, unsigned long crc) |
165 | { |
166 | return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8); |
167 | } |
168 | |
169 | static inline unsigned long |
170 | partial_crc32(const char *s, unsigned long crc) |
171 | { |
172 | while (*s) |
173 | crc = partial_crc32_one(*s++, crc); |
174 | return crc; |
175 | } |
176 | |
177 | static inline unsigned long |
178 | crc32(const char *s) |
179 | { |
180 | return partial_crc32(s, 0xffffffff) ^ 0xffffffff; |
181 | } |
182 | |