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1 | |
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2 | #include <ltt/event.h> |
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3 | |
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4 | /***************************************************************************** |
5 | *Function name |
6 | * ltt_event_position_get : get the event position data |
7 | *Input params |
8 | * e : an instance of an event type |
9 | * ep : a pointer to event's position structure |
10 | * tf : tracefile pointer |
11 | * block : current block |
12 | * offset : current offset |
13 | * tsc : current tsc |
14 | ****************************************************************************/ |
15 | void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf, |
16 | guint *block, guint *offset, guint64 *tsc) |
17 | { |
18 | *tf = ep->tracefile; |
19 | *block = ep->block; |
20 | *offset = ep->offset; |
21 | *tsc = ep->tsc; |
22 | } |
23 | |
24 | |
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25 | void ltt_event_position_set(LttEventPosition *ep, LttTracefile *tf, |
26 | guint block, guint offset, guint64 tsc) |
27 | { |
28 | ep->tracefile = tf; |
29 | ep->block = block; |
30 | ep->offset = offset; |
31 | ep->tsc = tsc; |
32 | } |
33 | |
34 | |
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35 | /***************************************************************************** |
36 | *Function name |
37 | * ltt_event_position : get the event's position |
38 | *Input params |
39 | * e : an instance of an event type |
40 | * ep : a pointer to event's position structure |
41 | ****************************************************************************/ |
42 | |
43 | void ltt_event_position(LttEvent *e, LttEventPosition *ep) |
44 | { |
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45 | ep->tracefile = e->tracefile; |
46 | ep->block = e->block; |
47 | ep->offset = e->offset; |
48 | ep->tsc = e->tsc; |
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49 | } |
50 | |
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51 | LttEventPosition * ltt_event_position_new() |
52 | { |
53 | return g_new(LttEventPosition, 1); |
54 | } |
55 | |
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56 | |
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57 | /***************************************************************************** |
58 | * Function name |
59 | * ltt_event_position_compare : compare two positions |
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60 | * A NULL value is infinite. |
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61 | * Input params |
62 | * ep1 : a pointer to event's position structure |
63 | * ep2 : a pointer to event's position structure |
64 | * Return |
65 | * -1 is ep1 < ep2 |
66 | * 1 if ep1 > ep2 |
67 | * 0 if ep1 == ep2 |
68 | ****************************************************************************/ |
69 | |
70 | |
71 | gint ltt_event_position_compare(const LttEventPosition *ep1, |
72 | const LttEventPosition *ep2) |
73 | { |
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74 | if(ep1 == NULL && ep2 == NULL) |
75 | return 0; |
76 | if(ep1 != NULL && ep2 == NULL) |
77 | return -1; |
78 | if(ep1 == NULL && ep2 != NULL) |
79 | return 1; |
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80 | |
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81 | if(ep1->tracefile != ep2->tracefile) |
82 | g_error("ltt_event_position_compare on different tracefiles makes no sense"); |
83 | |
84 | if(ep1->block < ep2->block) |
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85 | return -1; |
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86 | if(ep1->block > ep2->block) |
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87 | return 1; |
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88 | if(ep1->offset < ep2->offset) |
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89 | return -1; |
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90 | if(ep1->offset > ep2->offset) |
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91 | return 1; |
92 | return 0; |
93 | } |
94 | |
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95 | /***************************************************************************** |
96 | * Function name |
97 | * ltt_event_position_copy : copy position |
98 | * Input params |
99 | * src : a pointer to event's position structure source |
100 | * dest : a pointer to event's position structure dest |
101 | * Return |
102 | * void |
103 | ****************************************************************************/ |
104 | void ltt_event_position_copy(LttEventPosition *dest, |
105 | const LttEventPosition *src) |
106 | { |
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107 | if(src == NULL) |
108 | dest = NULL; |
109 | else |
110 | *dest = *src; |
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111 | } |
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112 | |
113 | |
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114 | |
115 | LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep) |
116 | { |
117 | return ep->tracefile; |
118 | } |
119 | |
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120 | /***************************************************************************** |
121 | * These functions extract data from an event after architecture specific |
122 | * conversions |
123 | ****************************************************************************/ |
124 | guint32 ltt_event_get_unsigned(LttEvent *e, struct marker_field *f) |
125 | { |
126 | gboolean reverse_byte_order; |
127 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
128 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
129 | } else { |
130 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
131 | } |
132 | |
133 | switch(f->size) { |
134 | case 1: |
135 | { |
136 | guint8 x = *(guint8 *)(e->data + f->offset); |
137 | return (guint32) x; |
138 | } |
139 | break; |
140 | case 2: |
141 | return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset); |
142 | break; |
143 | case 4: |
144 | return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset); |
145 | break; |
146 | case 8: |
147 | default: |
148 | g_critical("ltt_event_get_unsigned : field size %i unknown", f->size); |
149 | return 0; |
150 | break; |
151 | } |
152 | } |
153 | |
154 | gint32 ltt_event_get_int(LttEvent *e, struct marker_field *f) |
155 | { |
156 | gboolean reverse_byte_order; |
157 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
158 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
159 | } else { |
160 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
161 | } |
162 | |
163 | switch(f->size) { |
164 | case 1: |
165 | { |
166 | gint8 x = *(gint8 *)(e->data + f->offset); |
167 | return (gint32) x; |
168 | } |
169 | break; |
170 | case 2: |
171 | return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset); |
172 | break; |
173 | case 4: |
174 | return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset); |
175 | break; |
176 | case 8: |
177 | default: |
178 | g_critical("ltt_event_get_int : field size %i unknown", f->size); |
179 | return 0; |
180 | break; |
181 | } |
182 | } |
183 | |
184 | guint64 ltt_event_get_long_unsigned(LttEvent *e, struct marker_field *f) |
185 | { |
186 | gboolean reverse_byte_order; |
187 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
188 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
189 | } else { |
190 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
191 | } |
192 | |
193 | switch(f->size) { |
194 | case 1: |
195 | { |
196 | guint8 x = *(guint8 *)(e->data + f->offset); |
197 | return (guint64) x; |
198 | } |
199 | break; |
200 | case 2: |
201 | return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset); |
202 | break; |
203 | case 4: |
204 | return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset); |
205 | break; |
206 | case 8: |
207 | return ltt_get_uint64(reverse_byte_order, e->data + f->offset); |
208 | break; |
209 | default: |
210 | g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->size); |
211 | return 0; |
212 | break; |
213 | } |
214 | } |
215 | |
216 | gint64 ltt_event_get_long_int(LttEvent *e, struct marker_field *f) |
217 | { |
218 | gboolean reverse_byte_order; |
219 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
220 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
221 | } else { |
222 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
223 | } |
224 | |
225 | switch(f->size) { |
226 | case 1: |
227 | { |
228 | gint8 x = *(gint8 *)(e->data + f->offset); |
229 | return (gint64) x; |
230 | } |
231 | break; |
232 | case 2: |
233 | return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset); |
234 | break; |
235 | case 4: |
236 | return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset); |
237 | break; |
238 | case 8: |
239 | return ltt_get_int64(reverse_byte_order, e->data + f->offset); |
240 | break; |
241 | default: |
242 | g_critical("ltt_event_get_long_int : field size %i unknown", f->size); |
243 | return 0; |
244 | break; |
245 | } |
246 | } |
247 | |
248 | #if 0 |
249 | float ltt_event_get_float(LttEvent *e, struct marker_field *f) |
250 | { |
251 | gboolean reverse_byte_order; |
252 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
253 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
254 | } else { |
255 | g_assert(LTT_HAS_FLOAT(e->tracefile)); |
256 | reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); |
257 | } |
258 | |
259 | g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 4); |
260 | |
261 | if(reverse_byte_order == 0) return *(float *)(e->data + f->offset); |
262 | else{ |
263 | void *ptr = e->data + f->offset; |
264 | guint32 value = bswap_32(*(guint32*)ptr); |
265 | return *(float*)&value; |
266 | } |
267 | } |
268 | |
269 | double ltt_event_get_double(LttEvent *e, struct marker_field *f) |
270 | { |
271 | gboolean reverse_byte_order; |
272 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
273 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
274 | } else { |
275 | g_assert(LTT_HAS_FLOAT(e->tracefile)); |
276 | reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); |
277 | } |
278 | |
279 | if(f->size == 4) |
280 | return ltt_event_get_float(e, f); |
281 | |
282 | g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 8); |
283 | |
284 | if(reverse_byte_order == 0) return *(double *)(e->data + f->offset); |
285 | else { |
286 | void *ptr = e->data + f->offset; |
287 | guint64 value = bswap_64(*(guint64*)ptr); |
288 | return *(double*)&value; |
289 | } |
290 | } |
291 | #endif |
292 | |
293 | /***************************************************************************** |
294 | * The string obtained is only valid until the next read from |
295 | * the same tracefile. |
296 | ****************************************************************************/ |
297 | char *ltt_event_get_string(LttEvent *e, struct marker_field *f) |
298 | { |
299 | g_assert(f->type == LTT_TYPE_STRING); |
300 | |
301 | return (gchar*)g_strdup((gchar*)(e->data + f->offset)); |
302 | } |
303 | |
304 | |