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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 | |
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20 | #ifdef HAVE_CONFIG_H |
21 | #include <config.h> |
22 | #endif |
23 | |
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24 | #include <stdio.h> |
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25 | #include <glib.h> |
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26 | |
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27 | #include "parser.h" |
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28 | #include <ltt/ltt.h> |
29 | #include "ltt-private.h" |
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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 | |
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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 | |
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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 |
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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 | |
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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 | |
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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 |
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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; |
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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; |
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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 | size_t ltt_type_size(LttTrace * trace, LttType *t) |
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145 | { |
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146 | size_t size; |
147 | |
148 | switch(t->type_class) { |
149 | |
150 | case LTT_INT: |
151 | case LTT_UINT: |
152 | case LTT_SEQUENCE: |
153 | case LTT_ENUM: |
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154 | if(likely(t->size < INT_SIZES_NUMBER)) |
155 | size = intSizes[t->size]; |
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156 | else |
157 | goto error; |
158 | break; |
159 | case LTT_FLOAT: |
160 | if(likely(t->size < FLOAT_SIZES_NUMBER)) |
161 | size = floatSizes[t->size]; |
162 | else |
163 | goto error; |
164 | break; |
165 | case LTT_POINTER: |
166 | case LTT_LONG: |
167 | case LTT_ULONG: |
168 | case LTT_SIZE_T: |
169 | case LTT_SSIZE_T: |
170 | case LTT_OFF_T: |
171 | case LTT_STRING: |
172 | case LTT_ARRAY: |
173 | case LTT_STRUCT: |
174 | case LTT_UNION: |
175 | goto error; |
176 | break; |
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177 | } |
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178 | |
179 | return size; |
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180 | |
181 | |
182 | error: |
183 | g_warning("no size known for the type"); |
184 | return 0; |
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185 | } |
186 | |
187 | /***************************************************************************** |
188 | *Function name |
189 | * ltt_type_element_type : obtain the type of nested elements for arrays |
190 | * and sequences |
191 | *Input params |
192 | * t : a type |
193 | *Return value |
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194 | * LttType : the type of nested element of array or sequence |
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195 | ****************************************************************************/ |
196 | |
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197 | LttType *ltt_type_element_type(LttType *t) |
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198 | { |
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199 | LttType *element_type; |
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200 | LttField *field; |
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201 | |
202 | if(unlikely(t->type_class != LTT_ARRAY && t->type_class != LTT_SEQUENCE)) |
203 | element_type = NULL; |
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204 | else { |
205 | if(t->type_class == LTT_ARRAY) |
206 | field = &g_array_index(t->fields, LttField, 0); |
207 | else |
208 | field = &g_array_index(t->fields, LttField, 1); |
209 | element_type = ltt_field_type(field); |
210 | } |
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211 | |
212 | return element_type; |
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213 | } |
214 | |
215 | /***************************************************************************** |
216 | *Function name |
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217 | * ltt_type_element_number : obtain the number of elements for enums |
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218 | *Input params |
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219 | * t : a type |
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220 | *Return value |
221 | * unsigned : the number of elements for arrays |
222 | ****************************************************************************/ |
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223 | unsigned ltt_type_element_number(LttType *t) |
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224 | { |
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225 | unsigned ret = 0; |
226 | |
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227 | if(likely(t->type_class == LTT_ENUM)) |
228 | ret = g_hash_table_size(t->enum_map); |
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229 | |
230 | return ret; |
6cd62ccf |
231 | } |
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232 | |
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233 | /***************************************************************************** |
234 | *Function name |
235 | * ltt_type_member_number : obtain the number of data members for structure |
236 | *Input params |
237 | * t : a type |
238 | *Return value |
239 | * unsigned : the number of members for structure |
240 | ****************************************************************************/ |
241 | |
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242 | unsigned ltt_type_member_number(LttType *t) |
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243 | { |
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244 | unsigned ret = 0; |
245 | |
246 | if(likely(t->type_class == LTT_STRUCT || t->type_class == LTT_UNION)) |
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247 | ret = t->fields->len; |
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248 | |
249 | return ret; |
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250 | } |
251 | |
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252 | |
253 | /***************************************************************************** |
254 | *Function name |
255 | * ltt_enum_string_get : for enumerations, obtain the symbolic string |
256 | * associated with a value (0 to n - 1 for an |
257 | * enumeration of n elements) |
258 | *Input params |
259 | * t : a type |
260 | * i : index of the member |
261 | *Return value |
262 | * char * : symbolic string associated with a value |
263 | ****************************************************************************/ |
264 | |
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265 | GQuark ltt_enum_string_get(LttType *t, gulong i) |
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266 | { |
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267 | if(likely(t->type_class == LTT_ENUM)) |
268 | return (GQuark)g_hash_table_lookup(t->enum_map, (gpointer)i); |
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269 | else |
270 | return 0; |
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271 | } |
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272 | #if 0 |
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273 | /***************************************************************************** |
274 | *Function name |
275 | * ltt_field_element : obtain the field of nested elements for arrays and |
276 | * sequence |
277 | *Input params |
278 | * f : a field |
279 | *Return value |
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280 | * LttField * : the field of the nested element |
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281 | ****************************************************************************/ |
282 | |
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283 | LttField *ltt_field_element(LttField *f) |
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284 | { |
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285 | LttField *nest = NULL; |
286 | |
287 | if(likely(f->field_type->type_class == LTT_ARRAY || |
288 | f->field_type->type_class == LTT_SEQUENCE)) |
289 | nest = f->child[0]; |
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290 | |
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291 | return nest; |
6cd62ccf |
292 | } |
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293 | #endif//0 |
294 | |
295 | /***************************************************************************** |
296 | *Function name |
297 | * ltt_field_member_by_name : obtain the field of data members for structure |
298 | *Input params |
299 | * f : a field |
300 | * name : name of the field |
301 | *Return value |
302 | * LttField * : the field of the nested element |
303 | ****************************************************************************/ |
304 | |
305 | LttField *ltt_field_member_by_name(LttField *f, GQuark name) |
306 | { |
307 | LttField *field_member; |
308 | |
309 | g_assert(f->field_type.type_class == LTT_STRUCT || |
310 | f->field_type.type_class == LTT_UNION); |
311 | |
312 | field_member = g_datalist_id_get_data(&f->field_type.fields_by_name, name); |
313 | |
314 | return field_member; |
315 | } |
316 | |
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317 | |
318 | /***************************************************************************** |
319 | *Function name |
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320 | * ltt_field_member : obtain the field of data members for structure |
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321 | *Input params |
322 | * f : a field |
323 | * i : index of member field |
324 | *Return value |
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325 | * LttField * : the field of the nested element |
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326 | ****************************************************************************/ |
327 | |
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328 | LttField *ltt_field_member(LttField *f, guint i) |
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329 | { |
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330 | LttField *field_member; |
331 | |
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332 | g_assert(f->field_type.type_class == LTT_STRUCT || |
333 | f->field_type.type_class == LTT_UNION); |
334 | g_assert(i < f->field_type.fields->len); |
335 | |
336 | field_member = &g_array_index(f->field_type.fields, LttField, i); |
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337 | |
338 | return field_member; |
6cd62ccf |
339 | } |
340 | |
341 | /***************************************************************************** |
342 | *Function name |
343 | * ltt_field_type : obtain the type of the field |
344 | *Input params |
345 | * f : a field |
346 | *Return value |
347 | * ltt_tyoe * : the type of field |
348 | ****************************************************************************/ |
349 | |
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350 | LttType *ltt_field_type(LttField *f) |
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351 | { |
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352 | if(unlikely(!f))return NULL; |
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353 | return &f->field_type; |
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354 | } |
355 | |
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356 | int ltt_field_size(LttField * f) |
357 | { |
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358 | if(unlikely(!f))return 0; |
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359 | return f->field_size; |
360 | } |
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361 | |
362 | |
363 | /***************************************************************************** |
364 | *Function name |
365 | * ltt_eventtype_num_fields : get the number of fields of the event |
366 | *Input params |
367 | * e : an instance of an event type |
368 | *Return value |
369 | * guint : number of fields |
370 | ****************************************************************************/ |
371 | |
372 | guint ltt_eventtype_num_fields(LttEventType *event_type) |
373 | { |
374 | if(unlikely(!event_type)) return NULL; |
375 | |
376 | return event_type->fields->len; |
377 | |
378 | } |
379 | /***************************************************************************** |
380 | *Function name |
381 | * ltt_eventtype_field : get the i th field of the event |
382 | *Input params |
383 | * e : an instance of an event type |
384 | * i : field index |
385 | *Return value |
386 | * LttField * : The requested field, or NULL |
387 | ****************************************************************************/ |
388 | |
389 | LttField *ltt_eventtype_field(LttEventType *event_type, guint i) |
390 | { |
391 | if(unlikely(!event_type)) return NULL; |
392 | |
393 | if(i >= event_type->fields->len) return NULL; |
394 | |
395 | return &g_array_index(event_type->fields, LttField, i); |
396 | |
397 | } |
398 | |
399 | /***************************************************************************** |
400 | *Function name |
401 | * ltt_eventtype_field_by_name : get a field of the event |
402 | *Input params |
403 | * e : an instance of an event type |
404 | * name : field name |
405 | *Return value |
406 | * LttField * : The requested field, or NULL |
407 | ****************************************************************************/ |
408 | |
409 | LttField *ltt_eventtype_field_by_name(LttEventType *event_type, GQuark name) |
410 | { |
411 | if(unlikely(!event_type)) return NULL; |
412 | |
413 | return (LttField*)g_datalist_id_get_data(&event_type->fields_by_name, name); |
414 | |
415 | } |
416 | |
417 | |