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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 | |
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24 | #include <stdio.h> |
57df94dd |
25 | #include <glib.h> |
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26 | |
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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 | |
57df94dd |
36 | typedef enum _intSizesNames { SIZE_INT8, SIZE_INT16, SIZE_INT32, |
37 | SIZE_INT64, SIZE_SHORT, INT_SIZES_NUMBER } |
38 | intSizesNames; |
39 | |
40 | |
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41 | static unsigned floatSizes[] = { |
42 | 0, 0, sizeof(float), sizeof(double), 0, sizeof(float), sizeof(double) }; |
43 | |
57df94dd |
44 | #define FLOAT_SIZES_NUMBER 7 |
45 | |
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46 | |
47 | /***************************************************************************** |
48 | *Function name |
49 | * ltt_eventtype_name : get the name of the event type |
50 | *Input params |
51 | * et : an event type |
52 | *Return value |
3aee1200 |
53 | * GQuark : the name of the event type |
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54 | ****************************************************************************/ |
55 | |
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56 | GQuark ltt_eventtype_name(LttEventType *et) |
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57 | { |
58 | return et->name; |
59 | } |
60 | |
61 | /***************************************************************************** |
62 | *Function name |
63 | * ltt_eventtype_description : get the description of the event type |
64 | *Input params |
65 | * et : an event type |
66 | *Return value |
67 | * char * : the description of the event type |
68 | ****************************************************************************/ |
69 | |
45e14832 |
70 | gchar *ltt_eventtype_description(LttEventType *et) |
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71 | { |
72 | return et->description; |
73 | } |
74 | |
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75 | /***************************************************************************** |
76 | *Function name |
77 | * ltt_eventtype_facility : get the facility which contains the event type |
78 | *Input params |
79 | * et : an event type |
80 | *Return value |
81 | * LttFacility * : the facility |
82 | ****************************************************************************/ |
83 | |
84 | LttFacility *ltt_eventtype_facility(LttEventType *et) |
85 | { |
86 | return et->facility; |
87 | } |
88 | |
963b5f2d |
89 | /***************************************************************************** |
90 | *Function name |
91 | * ltt_eventtype_id : get the id of the event type |
92 | *Input params |
93 | * et : an event type |
94 | *Return value |
33690006 |
95 | * unsigned : the id |
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96 | ****************************************************************************/ |
97 | |
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98 | guint8 ltt_eventtype_id(LttEventType *et) |
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99 | { |
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100 | return et->index; |
963b5f2d |
101 | } |
102 | |
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103 | /***************************************************************************** |
104 | *Function name |
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105 | * ltt_field_name : get the name of the field |
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106 | *Input params |
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107 | * f : a field |
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108 | *Return value |
109 | * char * : the name of the type |
110 | ****************************************************************************/ |
111 | |
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112 | GQuark ltt_field_name(LttField *f) |
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113 | { |
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114 | return f->name; |
6cd62ccf |
115 | } |
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116 | /***************************************************************************** |
117 | *Function name |
118 | * ltt_type_class : get the type class of the type |
119 | *Input params |
120 | * t : a type |
121 | *Return value |
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122 | * LttTypeEnum : the type class of the type |
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123 | ****************************************************************************/ |
124 | |
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125 | LttTypeEnum ltt_type_class(LttType *t) |
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126 | { |
127 | return t->type_class; |
128 | } |
129 | |
130 | /***************************************************************************** |
131 | *Function name |
132 | * ltt_type_size : obtain the type size. The size is the number of bytes |
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133 | * for primitive types (INT, UINT, FLOAT, ENUM) |
134 | * or the size for the unsigned integer length count for |
135 | * sequences |
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136 | *Input params |
137 | * tf : trace file |
138 | * t : a type |
139 | *Return value |
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140 | * : the type size |
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141 | * returns 0 if erroneous, and show a critical warning message. |
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142 | ****************************************************************************/ |
143 | |
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144 | guint ltt_type_size(LttTrace * trace, LttType *t) |
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145 | { |
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146 | guint size; |
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147 | |
148 | switch(t->type_class) { |
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149 | case LTT_INT_FIXED: |
150 | case LTT_UINT_FIXED: |
151 | case LTT_CHAR: |
152 | case LTT_UCHAR: |
153 | case LTT_SHORT: |
154 | case LTT_USHORT: |
3aee1200 |
155 | case LTT_INT: |
156 | case LTT_UINT: |
3aee1200 |
157 | case LTT_ENUM: |
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158 | if(likely(t->size < INT_SIZES_NUMBER)) |
159 | size = intSizes[t->size]; |
3aee1200 |
160 | else |
161 | goto error; |
162 | break; |
163 | case LTT_FLOAT: |
164 | if(likely(t->size < FLOAT_SIZES_NUMBER)) |
165 | size = floatSizes[t->size]; |
166 | else |
167 | goto error; |
168 | break; |
169 | case LTT_POINTER: |
170 | case LTT_LONG: |
171 | case LTT_ULONG: |
172 | case LTT_SIZE_T: |
173 | case LTT_SSIZE_T: |
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174 | case LTT_SEQUENCE: |
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175 | case LTT_OFF_T: |
176 | case LTT_STRING: |
177 | case LTT_ARRAY: |
178 | case LTT_STRUCT: |
179 | case LTT_UNION: |
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180 | case LTT_NONE: |
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181 | goto error; |
182 | break; |
6cd62ccf |
183 | } |
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184 | |
185 | return size; |
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186 | |
187 | |
188 | error: |
189 | g_warning("no size known for the type"); |
190 | return 0; |
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191 | } |
192 | |
193 | /***************************************************************************** |
194 | *Function name |
195 | * ltt_type_element_type : obtain the type of nested elements for arrays |
196 | * and sequences |
197 | *Input params |
198 | * t : a type |
199 | *Return value |
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200 | * LttType : the type of nested element of array or sequence |
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201 | ****************************************************************************/ |
202 | |
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203 | LttType *ltt_type_element_type(LttType *t) |
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204 | { |
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205 | LttType *element_type; |
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206 | LttField *field; |
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207 | |
208 | if(unlikely(t->type_class != LTT_ARRAY && t->type_class != LTT_SEQUENCE)) |
209 | element_type = NULL; |
2312de30 |
210 | else { |
211 | if(t->type_class == LTT_ARRAY) |
212 | field = &g_array_index(t->fields, LttField, 0); |
213 | else |
214 | field = &g_array_index(t->fields, LttField, 1); |
215 | element_type = ltt_field_type(field); |
216 | } |
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217 | |
218 | return element_type; |
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219 | } |
220 | |
221 | /***************************************************************************** |
222 | *Function name |
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223 | * ltt_type_element_number : obtain the number of elements for enums |
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224 | *Input params |
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225 | * t : a type |
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226 | *Return value |
227 | * unsigned : the number of elements for arrays |
228 | ****************************************************************************/ |
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229 | unsigned ltt_type_element_number(LttType *t) |
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230 | { |
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231 | unsigned ret = 0; |
232 | |
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233 | if(likely(t->type_class == LTT_ENUM)) |
234 | ret = g_hash_table_size(t->enum_map); |
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235 | |
236 | return ret; |
6cd62ccf |
237 | } |
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238 | |
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239 | /***************************************************************************** |
240 | *Function name |
241 | * ltt_type_member_number : obtain the number of data members for structure |
242 | *Input params |
243 | * t : a type |
244 | *Return value |
245 | * unsigned : the number of members for structure |
246 | ****************************************************************************/ |
247 | |
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248 | unsigned ltt_type_member_number(LttType *t) |
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249 | { |
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250 | unsigned ret = 0; |
251 | |
252 | if(likely(t->type_class == LTT_STRUCT || t->type_class == LTT_UNION)) |
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253 | ret = t->fields->len; |
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254 | |
255 | return ret; |
6cd62ccf |
256 | } |
257 | |
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258 | |
259 | /***************************************************************************** |
260 | *Function name |
261 | * ltt_enum_string_get : for enumerations, obtain the symbolic string |
262 | * associated with a value (0 to n - 1 for an |
263 | * enumeration of n elements) |
264 | *Input params |
265 | * t : a type |
266 | * i : index of the member |
267 | *Return value |
268 | * char * : symbolic string associated with a value |
269 | ****************************************************************************/ |
270 | |
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271 | GQuark ltt_enum_string_get(LttType *t, gulong i) |
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272 | { |
2312de30 |
273 | if(likely(t->type_class == LTT_ENUM)) |
274 | return (GQuark)g_hash_table_lookup(t->enum_map, (gpointer)i); |
3aee1200 |
275 | else |
276 | return 0; |
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277 | } |
2312de30 |
278 | #if 0 |
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279 | /***************************************************************************** |
280 | *Function name |
281 | * ltt_field_element : obtain the field of nested elements for arrays and |
282 | * sequence |
283 | *Input params |
284 | * f : a field |
285 | *Return value |
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286 | * LttField * : the field of the nested element |
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287 | ****************************************************************************/ |
288 | |
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289 | LttField *ltt_field_element(LttField *f) |
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290 | { |
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291 | LttField *nest = NULL; |
292 | |
293 | if(likely(f->field_type->type_class == LTT_ARRAY || |
294 | f->field_type->type_class == LTT_SEQUENCE)) |
295 | nest = f->child[0]; |
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296 | |
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297 | return nest; |
6cd62ccf |
298 | } |
2312de30 |
299 | #endif//0 |
300 | |
301 | /***************************************************************************** |
302 | *Function name |
303 | * ltt_field_member_by_name : obtain the field of data members for structure |
304 | *Input params |
305 | * f : a field |
306 | * name : name of the field |
307 | *Return value |
308 | * LttField * : the field of the nested element |
309 | ****************************************************************************/ |
310 | |
311 | LttField *ltt_field_member_by_name(LttField *f, GQuark name) |
312 | { |
313 | LttField *field_member; |
314 | |
315 | g_assert(f->field_type.type_class == LTT_STRUCT || |
316 | f->field_type.type_class == LTT_UNION); |
317 | |
318 | field_member = g_datalist_id_get_data(&f->field_type.fields_by_name, name); |
319 | |
320 | return field_member; |
321 | } |
322 | |
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323 | |
324 | /***************************************************************************** |
325 | *Function name |
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326 | * ltt_field_member : obtain the field of data members for structure |
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327 | *Input params |
328 | * f : a field |
329 | * i : index of member field |
330 | *Return value |
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331 | * LttField * : the field of the nested element |
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332 | ****************************************************************************/ |
333 | |
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334 | LttField *ltt_field_member(LttField *f, guint i) |
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335 | { |
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336 | LttField *field_member; |
337 | |
2312de30 |
338 | g_assert(f->field_type.type_class == LTT_STRUCT || |
339 | f->field_type.type_class == LTT_UNION); |
340 | g_assert(i < f->field_type.fields->len); |
341 | |
342 | field_member = &g_array_index(f->field_type.fields, LttField, i); |
57df94dd |
343 | |
344 | return field_member; |
6cd62ccf |
345 | } |
346 | |
347 | /***************************************************************************** |
348 | *Function name |
349 | * ltt_field_type : obtain the type of the field |
350 | *Input params |
351 | * f : a field |
352 | *Return value |
353 | * ltt_tyoe * : the type of field |
354 | ****************************************************************************/ |
355 | |
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356 | LttType *ltt_field_type(LttField *f) |
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357 | { |
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358 | if(unlikely(!f))return NULL; |
2312de30 |
359 | return &f->field_type; |
6cd62ccf |
360 | } |
361 | |
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362 | int ltt_field_size(LttField * f) |
363 | { |
57df94dd |
364 | if(unlikely(!f))return 0; |
a5dcde2f |
365 | return f->field_size; |
366 | } |
2312de30 |
367 | |
368 | |
369 | /***************************************************************************** |
370 | *Function name |
371 | * ltt_eventtype_num_fields : get the number of fields of the event |
372 | *Input params |
373 | * e : an instance of an event type |
374 | *Return value |
375 | * guint : number of fields |
376 | ****************************************************************************/ |
377 | |
378 | guint ltt_eventtype_num_fields(LttEventType *event_type) |
379 | { |
83e160f2 |
380 | if(unlikely(!event_type)) return 0; |
2312de30 |
381 | |
382 | return event_type->fields->len; |
383 | |
384 | } |
385 | /***************************************************************************** |
386 | *Function name |
387 | * ltt_eventtype_field : get the i th field of the event |
388 | *Input params |
389 | * e : an instance of an event type |
390 | * i : field index |
391 | *Return value |
392 | * LttField * : The requested field, or NULL |
393 | ****************************************************************************/ |
394 | |
395 | LttField *ltt_eventtype_field(LttEventType *event_type, guint i) |
396 | { |
397 | if(unlikely(!event_type)) return NULL; |
398 | |
399 | if(i >= event_type->fields->len) return NULL; |
400 | |
401 | return &g_array_index(event_type->fields, LttField, i); |
402 | |
403 | } |
404 | |
405 | /***************************************************************************** |
406 | *Function name |
407 | * ltt_eventtype_field_by_name : get a field of the event |
408 | *Input params |
409 | * e : an instance of an event type |
410 | * name : field name |
411 | *Return value |
412 | * LttField * : The requested field, or NULL |
413 | ****************************************************************************/ |
414 | |
415 | LttField *ltt_eventtype_field_by_name(LttEventType *event_type, GQuark name) |
416 | { |
417 | if(unlikely(!event_type)) return NULL; |
418 | |
419 | return (LttField*)g_datalist_id_get_data(&event_type->fields_by_name, name); |
420 | |
421 | } |
422 | |
423 | |