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1 | /* This file is part of the Linux Trace Toolkit viewer |
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2 | * Copyright (C) 2003-2004 Xiangxiu Yang |
3 | * 2005 Mathieu Desnoyers |
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4 | * |
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5 | * This library is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU Lesser General Public |
7 | * License Version 2.1 as published by the Free Software Foundation. |
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8 | * |
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9 | * This library is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the |
16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
17 | * Boston, MA 02111-1307, USA. |
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18 | */ |
19 | |
4e4d11b3 |
20 | #ifdef HAVE_CONFIG_H |
21 | #include <config.h> |
22 | #endif |
23 | |
6cd62ccf |
24 | #include <stdio.h> |
57df94dd |
25 | #include <glib.h> |
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26 | |
6cd62ccf |
27 | #include "parser.h" |
a5dcde2f |
28 | #include <ltt/ltt.h> |
29 | #include "ltt-private.h" |
6cd62ccf |
30 | #include <ltt/type.h> |
31 | |
32 | static unsigned intSizes[] = { |
33 | sizeof(int8_t), sizeof(int16_t), sizeof(int32_t), sizeof(int64_t), |
34 | sizeof(short) }; |
35 | |
c1161b10 |
36 | static unsigned floatSizes[] = { |
37 | 0, 0, sizeof(float), sizeof(double), 0, sizeof(float), sizeof(double) }; |
38 | |
39 | |
57df94dd |
40 | typedef enum _intSizesNames { SIZE_INT8, SIZE_INT16, SIZE_INT32, |
41 | SIZE_INT64, SIZE_SHORT, INT_SIZES_NUMBER } |
42 | intSizesNames; |
43 | |
c1161b10 |
44 | static char * typeNames[] = { |
45 | "int_fixed", "uint_fixed", "pointer", "char", "uchar", "short", "ushort", |
46 | "int", "uint", "long", "ulong", "size_t", "ssize_t", "off_t", "float", |
47 | "string", "enum", "array", "sequence", "struct", "union", "none" }; |
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48 | |
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49 | |
57df94dd |
50 | #define FLOAT_SIZES_NUMBER 7 |
51 | |
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52 | |
53 | /***************************************************************************** |
54 | *Function name |
55 | * ltt_eventtype_name : get the name of the event type |
56 | *Input params |
57 | * et : an event type |
58 | *Return value |
3aee1200 |
59 | * GQuark : the name of the event type |
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60 | ****************************************************************************/ |
61 | |
3aee1200 |
62 | GQuark ltt_eventtype_name(LttEventType *et) |
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63 | { |
64 | return et->name; |
65 | } |
66 | |
67 | /***************************************************************************** |
68 | *Function name |
69 | * ltt_eventtype_description : get the description of the event type |
70 | *Input params |
71 | * et : an event type |
72 | *Return value |
73 | * char * : the description of the event type |
74 | ****************************************************************************/ |
75 | |
45e14832 |
76 | gchar *ltt_eventtype_description(LttEventType *et) |
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77 | { |
78 | return et->description; |
79 | } |
80 | |
963b5f2d |
81 | /***************************************************************************** |
82 | *Function name |
83 | * ltt_eventtype_facility : get the facility which contains the event type |
84 | *Input params |
85 | * et : an event type |
86 | *Return value |
87 | * LttFacility * : the facility |
88 | ****************************************************************************/ |
89 | |
90 | LttFacility *ltt_eventtype_facility(LttEventType *et) |
91 | { |
92 | return et->facility; |
93 | } |
94 | |
963b5f2d |
95 | /***************************************************************************** |
96 | *Function name |
97 | * ltt_eventtype_id : get the id of the event type |
98 | *Input params |
99 | * et : an event type |
100 | *Return value |
33690006 |
101 | * unsigned : the id |
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102 | ****************************************************************************/ |
103 | |
3aee1200 |
104 | guint8 ltt_eventtype_id(LttEventType *et) |
963b5f2d |
105 | { |
3aee1200 |
106 | return et->index; |
963b5f2d |
107 | } |
108 | |
c1161b10 |
109 | /***************************************************************************** |
110 | *Function name |
111 | * ltt_type_name : get the name of the type |
112 | *Input params |
113 | * t : a type |
114 | *Return value |
115 | * GQuark : the name of the type |
116 | ****************************************************************************/ |
117 | |
118 | GQuark ltt_type_name(LttType *t) |
119 | { |
120 | return g_quark_from_static_string(typeNames[t->type_class]); |
121 | } |
122 | |
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123 | /***************************************************************************** |
124 | *Function name |
2312de30 |
125 | * ltt_field_name : get the name of the field |
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126 | *Input params |
2312de30 |
127 | * f : a field |
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128 | *Return value |
129 | * char * : the name of the type |
130 | ****************************************************************************/ |
131 | |
2312de30 |
132 | GQuark ltt_field_name(LttField *f) |
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133 | { |
2312de30 |
134 | return f->name; |
6cd62ccf |
135 | } |
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136 | |
137 | |
138 | |
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139 | /***************************************************************************** |
140 | *Function name |
141 | * ltt_type_class : get the type class of the type |
142 | *Input params |
143 | * t : a type |
144 | *Return value |
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145 | * LttTypeEnum : the type class of the type |
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146 | ****************************************************************************/ |
147 | |
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148 | LttTypeEnum ltt_type_class(LttType *t) |
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149 | { |
150 | return t->type_class; |
151 | } |
152 | |
153 | /***************************************************************************** |
154 | *Function name |
155 | * ltt_type_size : obtain the type size. The size is the number of bytes |
3aee1200 |
156 | * for primitive types (INT, UINT, FLOAT, ENUM) |
157 | * or the size for the unsigned integer length count for |
158 | * sequences |
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159 | *Input params |
160 | * tf : trace file |
161 | * t : a type |
162 | *Return value |
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163 | * : the type size |
8d1e6362 |
164 | * returns 0 if erroneous, and show a critical warning message. |
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165 | ****************************************************************************/ |
166 | |
8e14270e |
167 | guint ltt_type_size(LttTrace * trace, LttType *t) |
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168 | { |
8e14270e |
169 | guint size; |
3aee1200 |
170 | |
171 | switch(t->type_class) { |
83e160f2 |
172 | case LTT_INT_FIXED: |
173 | case LTT_UINT_FIXED: |
174 | case LTT_CHAR: |
175 | case LTT_UCHAR: |
176 | case LTT_SHORT: |
177 | case LTT_USHORT: |
3aee1200 |
178 | case LTT_INT: |
179 | case LTT_UINT: |
3aee1200 |
180 | case LTT_ENUM: |
57df94dd |
181 | if(likely(t->size < INT_SIZES_NUMBER)) |
182 | size = intSizes[t->size]; |
3aee1200 |
183 | else |
184 | goto error; |
185 | break; |
186 | case LTT_FLOAT: |
187 | if(likely(t->size < FLOAT_SIZES_NUMBER)) |
188 | size = floatSizes[t->size]; |
189 | else |
190 | goto error; |
191 | break; |
192 | case LTT_POINTER: |
193 | case LTT_LONG: |
194 | case LTT_ULONG: |
195 | case LTT_SIZE_T: |
196 | case LTT_SSIZE_T: |
83e160f2 |
197 | case LTT_SEQUENCE: |
3aee1200 |
198 | case LTT_OFF_T: |
199 | case LTT_STRING: |
200 | case LTT_ARRAY: |
201 | case LTT_STRUCT: |
202 | case LTT_UNION: |
83e160f2 |
203 | case LTT_NONE: |
3aee1200 |
204 | goto error; |
205 | break; |
6cd62ccf |
206 | } |
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207 | |
208 | return size; |
3aee1200 |
209 | |
210 | |
211 | error: |
212 | g_warning("no size known for the type"); |
213 | return 0; |
6cd62ccf |
214 | } |
215 | |
216 | /***************************************************************************** |
217 | *Function name |
218 | * ltt_type_element_type : obtain the type of nested elements for arrays |
219 | * and sequences |
220 | *Input params |
221 | * t : a type |
222 | *Return value |
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223 | * LttType : the type of nested element of array or sequence |
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224 | ****************************************************************************/ |
225 | |
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226 | LttType *ltt_type_element_type(LttType *t) |
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227 | { |
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228 | LttType *element_type; |
2312de30 |
229 | LttField *field; |
57df94dd |
230 | |
231 | if(unlikely(t->type_class != LTT_ARRAY && t->type_class != LTT_SEQUENCE)) |
232 | element_type = NULL; |
2312de30 |
233 | else { |
234 | if(t->type_class == LTT_ARRAY) |
235 | field = &g_array_index(t->fields, LttField, 0); |
236 | else |
237 | field = &g_array_index(t->fields, LttField, 1); |
238 | element_type = ltt_field_type(field); |
239 | } |
57df94dd |
240 | |
241 | return element_type; |
6cd62ccf |
242 | } |
243 | |
244 | /***************************************************************************** |
245 | *Function name |
d3cd9e86 |
246 | * ltt_type_element_number : obtain the number of elements for enums |
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247 | *Input params |
d3cd9e86 |
248 | * t : a type |
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249 | *Return value |
250 | * unsigned : the number of elements for arrays |
251 | ****************************************************************************/ |
963b5f2d |
252 | unsigned ltt_type_element_number(LttType *t) |
6cd62ccf |
253 | { |
57df94dd |
254 | unsigned ret = 0; |
255 | |
d3cd9e86 |
256 | if(likely(t->type_class == LTT_ENUM)) |
880fded3 |
257 | // Permits non full enums ret = g_hash_table_size(t->enum_map); |
258 | ret = (unsigned)(t->highest_value - t->lowest_value); |
57df94dd |
259 | |
260 | return ret; |
6cd62ccf |
261 | } |
d3cd9e86 |
262 | |
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263 | /***************************************************************************** |
264 | *Function name |
265 | * ltt_type_member_number : obtain the number of data members for structure |
266 | *Input params |
267 | * t : a type |
268 | *Return value |
269 | * unsigned : the number of members for structure |
270 | ****************************************************************************/ |
271 | |
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272 | unsigned ltt_type_member_number(LttType *t) |
6cd62ccf |
273 | { |
57df94dd |
274 | unsigned ret = 0; |
275 | |
276 | if(likely(t->type_class == LTT_STRUCT || t->type_class == LTT_UNION)) |
2312de30 |
277 | ret = t->fields->len; |
57df94dd |
278 | |
279 | return ret; |
6cd62ccf |
280 | } |
281 | |
6cd62ccf |
282 | |
283 | /***************************************************************************** |
284 | *Function name |
285 | * ltt_enum_string_get : for enumerations, obtain the symbolic string |
286 | * associated with a value (0 to n - 1 for an |
287 | * enumeration of n elements) |
288 | *Input params |
289 | * t : a type |
290 | * i : index of the member |
291 | *Return value |
292 | * char * : symbolic string associated with a value |
293 | ****************************************************************************/ |
294 | |
2312de30 |
295 | GQuark ltt_enum_string_get(LttType *t, gulong i) |
57df94dd |
296 | { |
2312de30 |
297 | if(likely(t->type_class == LTT_ENUM)) |
298 | return (GQuark)g_hash_table_lookup(t->enum_map, (gpointer)i); |
3aee1200 |
299 | else |
300 | return 0; |
6cd62ccf |
301 | } |
2312de30 |
302 | #if 0 |
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303 | /***************************************************************************** |
304 | *Function name |
305 | * ltt_field_element : obtain the field of nested elements for arrays and |
306 | * sequence |
307 | *Input params |
308 | * f : a field |
309 | *Return value |
963b5f2d |
310 | * LttField * : the field of the nested element |
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311 | ****************************************************************************/ |
312 | |
963b5f2d |
313 | LttField *ltt_field_element(LttField *f) |
6cd62ccf |
314 | { |
57df94dd |
315 | LttField *nest = NULL; |
316 | |
317 | if(likely(f->field_type->type_class == LTT_ARRAY || |
318 | f->field_type->type_class == LTT_SEQUENCE)) |
319 | nest = f->child[0]; |
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320 | |
57df94dd |
321 | return nest; |
6cd62ccf |
322 | } |
2312de30 |
323 | #endif//0 |
324 | |
325 | /***************************************************************************** |
326 | *Function name |
327 | * ltt_field_member_by_name : obtain the field of data members for structure |
328 | *Input params |
329 | * f : a field |
330 | * name : name of the field |
331 | *Return value |
332 | * LttField * : the field of the nested element |
333 | ****************************************************************************/ |
334 | |
335 | LttField *ltt_field_member_by_name(LttField *f, GQuark name) |
336 | { |
337 | LttField *field_member; |
338 | |
339 | g_assert(f->field_type.type_class == LTT_STRUCT || |
340 | f->field_type.type_class == LTT_UNION); |
341 | |
342 | field_member = g_datalist_id_get_data(&f->field_type.fields_by_name, name); |
343 | |
344 | return field_member; |
345 | } |
346 | |
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347 | |
348 | /***************************************************************************** |
349 | *Function name |
59d7bdf3 |
350 | * ltt_field_member : obtain the field of data members for structure |
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351 | *Input params |
352 | * f : a field |
353 | * i : index of member field |
354 | *Return value |
963b5f2d |
355 | * LttField * : the field of the nested element |
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356 | ****************************************************************************/ |
357 | |
2312de30 |
358 | LttField *ltt_field_member(LttField *f, guint i) |
6cd62ccf |
359 | { |
57df94dd |
360 | LttField *field_member; |
361 | |
2312de30 |
362 | g_assert(f->field_type.type_class == LTT_STRUCT || |
363 | f->field_type.type_class == LTT_UNION); |
364 | g_assert(i < f->field_type.fields->len); |
365 | |
366 | field_member = &g_array_index(f->field_type.fields, LttField, i); |
57df94dd |
367 | |
368 | return field_member; |
6cd62ccf |
369 | } |
370 | |
371 | /***************************************************************************** |
372 | *Function name |
373 | * ltt_field_type : obtain the type of the field |
374 | *Input params |
375 | * f : a field |
376 | *Return value |
377 | * ltt_tyoe * : the type of field |
378 | ****************************************************************************/ |
379 | |
963b5f2d |
380 | LttType *ltt_field_type(LttField *f) |
6cd62ccf |
381 | { |
57df94dd |
382 | if(unlikely(!f))return NULL; |
2312de30 |
383 | return &f->field_type; |
6cd62ccf |
384 | } |
385 | |
a5dcde2f |
386 | int ltt_field_size(LttField * f) |
387 | { |
57df94dd |
388 | if(unlikely(!f))return 0; |
a5dcde2f |
389 | return f->field_size; |
390 | } |
2312de30 |
391 | |
392 | |
393 | /***************************************************************************** |
394 | *Function name |
395 | * ltt_eventtype_num_fields : get the number of fields of the event |
396 | *Input params |
397 | * e : an instance of an event type |
398 | *Return value |
399 | * guint : number of fields |
400 | ****************************************************************************/ |
401 | |
402 | guint ltt_eventtype_num_fields(LttEventType *event_type) |
403 | { |
83e160f2 |
404 | if(unlikely(!event_type)) return 0; |
2312de30 |
405 | |
406 | return event_type->fields->len; |
407 | |
408 | } |
409 | /***************************************************************************** |
410 | *Function name |
411 | * ltt_eventtype_field : get the i th field of the event |
412 | *Input params |
413 | * e : an instance of an event type |
414 | * i : field index |
415 | *Return value |
416 | * LttField * : The requested field, or NULL |
417 | ****************************************************************************/ |
418 | |
419 | LttField *ltt_eventtype_field(LttEventType *event_type, guint i) |
420 | { |
421 | if(unlikely(!event_type)) return NULL; |
422 | |
423 | if(i >= event_type->fields->len) return NULL; |
424 | |
425 | return &g_array_index(event_type->fields, LttField, i); |
426 | |
427 | } |
428 | |
429 | /***************************************************************************** |
430 | *Function name |
431 | * ltt_eventtype_field_by_name : get a field of the event |
432 | *Input params |
433 | * e : an instance of an event type |
434 | * name : field name |
435 | *Return value |
436 | * LttField * : The requested field, or NULL |
437 | ****************************************************************************/ |
438 | |
439 | LttField *ltt_eventtype_field_by_name(LttEventType *event_type, GQuark name) |
440 | { |
441 | if(unlikely(!event_type)) return NULL; |
442 | |
443 | return (LttField*)g_datalist_id_get_data(&event_type->fields_by_name, name); |
444 | |
445 | } |
446 | |
447 | |