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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 | |
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 | |
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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 | |
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81 | /***************************************************************************** |
82 | *Function name |
83 | * ltt_eventtype_id : get the id of the event type |
84 | *Input params |
85 | * et : an event type |
86 | *Return value |
33690006 |
87 | * unsigned : the id |
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88 | ****************************************************************************/ |
89 | |
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90 | guint8 ltt_eventtype_id(LttEventType *et) |
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91 | { |
3aee1200 |
92 | return et->index; |
963b5f2d |
93 | } |
94 | |
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95 | /***************************************************************************** |
96 | *Function name |
97 | * ltt_type_name : get the name of the type |
98 | *Input params |
99 | * t : a type |
100 | *Return value |
101 | * GQuark : the name of the type |
102 | ****************************************************************************/ |
103 | |
104 | GQuark ltt_type_name(LttType *t) |
105 | { |
106 | return g_quark_from_static_string(typeNames[t->type_class]); |
107 | } |
108 | |
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109 | /***************************************************************************** |
110 | *Function name |
2312de30 |
111 | * ltt_field_name : get the name of the field |
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112 | *Input params |
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113 | * f : a field |
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114 | *Return value |
115 | * char * : the name of the type |
116 | ****************************************************************************/ |
117 | |
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118 | GQuark ltt_field_name(LttField *f) |
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119 | { |
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120 | return f->name; |
6cd62ccf |
121 | } |
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122 | |
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123 | /***************************************************************************** |
124 | *Function name |
125 | * ltt_type_class : get the type class of the type |
126 | *Input params |
127 | * t : a type |
128 | *Return value |
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129 | * LttTypeEnum : the type class of the type |
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130 | ****************************************************************************/ |
131 | |
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132 | LttTypeEnum ltt_type_class(LttType *t) |
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133 | { |
134 | return t->type_class; |
135 | } |
136 | |
137 | /***************************************************************************** |
138 | *Function name |
139 | * ltt_type_size : obtain the type size. The size is the number of bytes |
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140 | * for primitive types (INT, UINT, FLOAT, ENUM) |
141 | * or the size for the unsigned integer length count for |
142 | * sequences |
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143 | *Input params |
144 | * tf : trace file |
145 | * t : a type |
146 | *Return value |
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147 | * : the type size |
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148 | * returns 0 if erroneous, and show a critical warning message. |
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149 | ****************************************************************************/ |
150 | |
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151 | guint ltt_type_size(LttTrace * trace, LttType *t) |
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152 | { |
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153 | guint size; |
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154 | |
155 | switch(t->type_class) { |
83e160f2 |
156 | case LTT_INT_FIXED: |
157 | case LTT_UINT_FIXED: |
158 | case LTT_CHAR: |
159 | case LTT_UCHAR: |
160 | case LTT_SHORT: |
161 | case LTT_USHORT: |
3aee1200 |
162 | case LTT_INT: |
163 | case LTT_UINT: |
3aee1200 |
164 | case LTT_ENUM: |
57df94dd |
165 | if(likely(t->size < INT_SIZES_NUMBER)) |
166 | size = intSizes[t->size]; |
3aee1200 |
167 | else |
168 | goto error; |
169 | break; |
170 | case LTT_FLOAT: |
171 | if(likely(t->size < FLOAT_SIZES_NUMBER)) |
172 | size = floatSizes[t->size]; |
173 | else |
174 | goto error; |
175 | break; |
176 | case LTT_POINTER: |
177 | case LTT_LONG: |
178 | case LTT_ULONG: |
179 | case LTT_SIZE_T: |
180 | case LTT_SSIZE_T: |
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181 | case LTT_SEQUENCE: |
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182 | case LTT_OFF_T: |
183 | case LTT_STRING: |
184 | case LTT_ARRAY: |
185 | case LTT_STRUCT: |
186 | case LTT_UNION: |
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187 | case LTT_NONE: |
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188 | goto error; |
189 | break; |
6cd62ccf |
190 | } |
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191 | |
192 | return size; |
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193 | |
194 | |
195 | error: |
196 | g_warning("no size known for the type"); |
197 | return 0; |
6cd62ccf |
198 | } |
199 | |
200 | /***************************************************************************** |
201 | *Function name |
202 | * ltt_type_element_type : obtain the type of nested elements for arrays |
203 | * and sequences |
204 | *Input params |
205 | * t : a type |
206 | *Return value |
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207 | * LttType : the type of nested element of array or sequence |
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208 | ****************************************************************************/ |
209 | |
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210 | LttType *ltt_type_element_type(LttType *t) |
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211 | { |
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212 | LttType *element_type; |
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213 | LttField *field; |
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214 | |
215 | if(unlikely(t->type_class != LTT_ARRAY && t->type_class != LTT_SEQUENCE)) |
216 | element_type = NULL; |
2312de30 |
217 | else { |
218 | if(t->type_class == LTT_ARRAY) |
219 | field = &g_array_index(t->fields, LttField, 0); |
220 | else |
221 | field = &g_array_index(t->fields, LttField, 1); |
222 | element_type = ltt_field_type(field); |
223 | } |
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224 | |
225 | return element_type; |
6cd62ccf |
226 | } |
227 | |
228 | /***************************************************************************** |
229 | *Function name |
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230 | * ltt_type_element_number : obtain the number of elements for enums |
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231 | *Input params |
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232 | * t : a type |
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233 | *Return value |
234 | * unsigned : the number of elements for arrays |
235 | ****************************************************************************/ |
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236 | unsigned ltt_type_element_number(LttType *t) |
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237 | { |
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238 | unsigned ret = 0; |
239 | |
d3cd9e86 |
240 | if(likely(t->type_class == LTT_ENUM)) |
880fded3 |
241 | // Permits non full enums ret = g_hash_table_size(t->enum_map); |
242 | ret = (unsigned)(t->highest_value - t->lowest_value); |
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243 | |
244 | return ret; |
6cd62ccf |
245 | } |
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246 | |
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247 | /***************************************************************************** |
248 | *Function name |
249 | * ltt_type_member_number : obtain the number of data members for structure |
250 | *Input params |
251 | * t : a type |
252 | *Return value |
253 | * unsigned : the number of members for structure |
254 | ****************************************************************************/ |
255 | |
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256 | unsigned ltt_type_member_number(LttType *t) |
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257 | { |
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258 | unsigned ret = 0; |
259 | |
260 | if(likely(t->type_class == LTT_STRUCT || t->type_class == LTT_UNION)) |
2312de30 |
261 | ret = t->fields->len; |
57df94dd |
262 | |
263 | return ret; |
6cd62ccf |
264 | } |
265 | |
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266 | |
267 | /***************************************************************************** |
268 | *Function name |
269 | * ltt_enum_string_get : for enumerations, obtain the symbolic string |
270 | * associated with a value (0 to n - 1 for an |
271 | * enumeration of n elements) |
272 | *Input params |
273 | * t : a type |
274 | * i : index of the member |
275 | *Return value |
276 | * char * : symbolic string associated with a value |
277 | ****************************************************************************/ |
278 | |
2312de30 |
279 | GQuark ltt_enum_string_get(LttType *t, gulong i) |
57df94dd |
280 | { |
2312de30 |
281 | if(likely(t->type_class == LTT_ENUM)) |
282 | return (GQuark)g_hash_table_lookup(t->enum_map, (gpointer)i); |
3aee1200 |
283 | else |
284 | return 0; |
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285 | } |
2312de30 |
286 | #if 0 |
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287 | /***************************************************************************** |
288 | *Function name |
289 | * ltt_field_element : obtain the field of nested elements for arrays and |
290 | * sequence |
291 | *Input params |
292 | * f : a field |
293 | *Return value |
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294 | * LttField * : the field of the nested element |
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295 | ****************************************************************************/ |
296 | |
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297 | LttField *ltt_field_element(LttField *f) |
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298 | { |
57df94dd |
299 | LttField *nest = NULL; |
300 | |
301 | if(likely(f->field_type->type_class == LTT_ARRAY || |
302 | f->field_type->type_class == LTT_SEQUENCE)) |
303 | nest = f->child[0]; |
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304 | |
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305 | return nest; |
6cd62ccf |
306 | } |
2312de30 |
307 | #endif//0 |
308 | |
309 | /***************************************************************************** |
310 | *Function name |
311 | * ltt_field_member_by_name : obtain the field of data members for structure |
312 | *Input params |
313 | * f : a field |
314 | * name : name of the field |
315 | *Return value |
316 | * LttField * : the field of the nested element |
317 | ****************************************************************************/ |
318 | |
319 | LttField *ltt_field_member_by_name(LttField *f, GQuark name) |
320 | { |
321 | LttField *field_member; |
322 | |
323 | g_assert(f->field_type.type_class == LTT_STRUCT || |
324 | f->field_type.type_class == LTT_UNION); |
325 | |
326 | field_member = g_datalist_id_get_data(&f->field_type.fields_by_name, name); |
327 | |
328 | return field_member; |
329 | } |
330 | |
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331 | |
332 | /***************************************************************************** |
333 | *Function name |
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334 | * ltt_field_member : obtain the field of data members for structure |
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335 | *Input params |
336 | * f : a field |
337 | * i : index of member field |
338 | *Return value |
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339 | * LttField * : the field of the nested element |
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340 | ****************************************************************************/ |
341 | |
2312de30 |
342 | LttField *ltt_field_member(LttField *f, guint i) |
6cd62ccf |
343 | { |
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344 | LttField *field_member; |
345 | |
2312de30 |
346 | g_assert(f->field_type.type_class == LTT_STRUCT || |
347 | f->field_type.type_class == LTT_UNION); |
348 | g_assert(i < f->field_type.fields->len); |
349 | |
350 | field_member = &g_array_index(f->field_type.fields, LttField, i); |
57df94dd |
351 | |
352 | return field_member; |
6cd62ccf |
353 | } |
354 | |
355 | /***************************************************************************** |
356 | *Function name |
357 | * ltt_field_type : obtain the type of the field |
358 | *Input params |
359 | * f : a field |
360 | *Return value |
361 | * ltt_tyoe * : the type of field |
362 | ****************************************************************************/ |
363 | |
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364 | LttType *ltt_field_type(LttField *f) |
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365 | { |
57df94dd |
366 | if(unlikely(!f))return NULL; |
2312de30 |
367 | return &f->field_type; |
6cd62ccf |
368 | } |
369 | |
a5dcde2f |
370 | int ltt_field_size(LttField * f) |
371 | { |
57df94dd |
372 | if(unlikely(!f))return 0; |
a5dcde2f |
373 | return f->field_size; |
374 | } |
2312de30 |
375 | |
376 | |
377 | /***************************************************************************** |
378 | *Function name |
379 | * ltt_eventtype_num_fields : get the number of fields of the event |
380 | *Input params |
381 | * e : an instance of an event type |
382 | *Return value |
383 | * guint : number of fields |
384 | ****************************************************************************/ |
385 | |
386 | guint ltt_eventtype_num_fields(LttEventType *event_type) |
387 | { |
83e160f2 |
388 | if(unlikely(!event_type)) return 0; |
2312de30 |
389 | |
390 | return event_type->fields->len; |
391 | |
392 | } |
393 | /***************************************************************************** |
394 | *Function name |
395 | * ltt_eventtype_field : get the i th field of the event |
396 | *Input params |
397 | * e : an instance of an event type |
398 | * i : field index |
399 | *Return value |
400 | * LttField * : The requested field, or NULL |
401 | ****************************************************************************/ |
402 | |
403 | LttField *ltt_eventtype_field(LttEventType *event_type, guint i) |
404 | { |
405 | if(unlikely(!event_type)) return NULL; |
406 | |
407 | if(i >= event_type->fields->len) return NULL; |
408 | |
409 | return &g_array_index(event_type->fields, LttField, i); |
410 | |
411 | } |
412 | |
413 | /***************************************************************************** |
414 | *Function name |
415 | * ltt_eventtype_field_by_name : get a field of the event |
416 | *Input params |
417 | * e : an instance of an event type |
418 | * name : field name |
419 | *Return value |
420 | * LttField * : The requested field, or NULL |
421 | ****************************************************************************/ |
422 | |
423 | LttField *ltt_eventtype_field_by_name(LttEventType *event_type, GQuark name) |
424 | { |
425 | if(unlikely(!event_type)) return NULL; |
426 | |
427 | return (LttField*)g_datalist_id_get_data(&event_type->fields_by_name, name); |
428 | |
429 | } |
430 | |
431 | |