| 1 | |
| 2 | #include <ltt/event.h> |
| 3 | #include <ltt/ltt-types.h> |
| 4 | #include <ltt/ltt-private.h> |
| 5 | |
| 6 | /***************************************************************************** |
| 7 | *Function name |
| 8 | * ltt_event_position_get : get the event position data |
| 9 | *Input params |
| 10 | * e : an instance of an event type |
| 11 | * ep : a pointer to event's position structure |
| 12 | * tf : tracefile pointer |
| 13 | * block : current block |
| 14 | * offset : current offset |
| 15 | * tsc : current tsc |
| 16 | ****************************************************************************/ |
| 17 | void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf, |
| 18 | guint *block, guint *offset, guint64 *tsc) |
| 19 | { |
| 20 | *tf = ep->tracefile; |
| 21 | *block = ep->block; |
| 22 | *offset = ep->offset; |
| 23 | *tsc = ep->tsc; |
| 24 | } |
| 25 | |
| 26 | |
| 27 | void ltt_event_position_set(LttEventPosition *ep, LttTracefile *tf, |
| 28 | guint block, guint offset, guint64 tsc) |
| 29 | { |
| 30 | ep->tracefile = tf; |
| 31 | ep->block = block; |
| 32 | ep->offset = offset; |
| 33 | ep->tsc = tsc; |
| 34 | } |
| 35 | |
| 36 | |
| 37 | /***************************************************************************** |
| 38 | *Function name |
| 39 | * ltt_event_position : get the event's position |
| 40 | *Input params |
| 41 | * e : an instance of an event type |
| 42 | * ep : a pointer to event's position structure |
| 43 | ****************************************************************************/ |
| 44 | |
| 45 | void ltt_event_position(LttEvent *e, LttEventPosition *ep) |
| 46 | { |
| 47 | ep->tracefile = e->tracefile; |
| 48 | ep->block = e->block; |
| 49 | ep->offset = e->offset; |
| 50 | ep->tsc = e->tsc; |
| 51 | } |
| 52 | |
| 53 | LttEventPosition * ltt_event_position_new() |
| 54 | { |
| 55 | return g_new(LttEventPosition, 1); |
| 56 | } |
| 57 | |
| 58 | |
| 59 | /***************************************************************************** |
| 60 | * Function name |
| 61 | * ltt_event_position_compare : compare two positions |
| 62 | * A NULL value is infinite. |
| 63 | * Input params |
| 64 | * ep1 : a pointer to event's position structure |
| 65 | * ep2 : a pointer to event's position structure |
| 66 | * Return |
| 67 | * -1 is ep1 < ep2 |
| 68 | * 1 if ep1 > ep2 |
| 69 | * 0 if ep1 == ep2 |
| 70 | ****************************************************************************/ |
| 71 | |
| 72 | |
| 73 | gint ltt_event_position_compare(const LttEventPosition *ep1, |
| 74 | const LttEventPosition *ep2) |
| 75 | { |
| 76 | if(ep1 == NULL && ep2 == NULL) |
| 77 | return 0; |
| 78 | if(ep1 != NULL && ep2 == NULL) |
| 79 | return -1; |
| 80 | if(ep1 == NULL && ep2 != NULL) |
| 81 | return 1; |
| 82 | |
| 83 | if(ep1->tracefile != ep2->tracefile) |
| 84 | g_error("ltt_event_position_compare on different tracefiles makes no sense"); |
| 85 | |
| 86 | if(ep1->block < ep2->block) |
| 87 | return -1; |
| 88 | if(ep1->block > ep2->block) |
| 89 | return 1; |
| 90 | if(ep1->offset < ep2->offset) |
| 91 | return -1; |
| 92 | if(ep1->offset > ep2->offset) |
| 93 | return 1; |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | /***************************************************************************** |
| 98 | * Function name |
| 99 | * ltt_event_position_copy : copy position |
| 100 | * Input params |
| 101 | * src : a pointer to event's position structure source |
| 102 | * dest : a pointer to event's position structure dest |
| 103 | * Return |
| 104 | * void |
| 105 | ****************************************************************************/ |
| 106 | void ltt_event_position_copy(LttEventPosition *dest, |
| 107 | const LttEventPosition *src) |
| 108 | { |
| 109 | if(src == NULL) |
| 110 | dest = NULL; |
| 111 | else |
| 112 | *dest = *src; |
| 113 | } |
| 114 | |
| 115 | |
| 116 | |
| 117 | LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep) |
| 118 | { |
| 119 | return ep->tracefile; |
| 120 | } |
| 121 | |
| 122 | /***************************************************************************** |
| 123 | * These functions extract data from an event after architecture specific |
| 124 | * conversions |
| 125 | ****************************************************************************/ |
| 126 | guint32 ltt_event_get_unsigned(LttEvent *e, struct marker_field *f) |
| 127 | { |
| 128 | gboolean reverse_byte_order; |
| 129 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 130 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 131 | } else { |
| 132 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
| 133 | } |
| 134 | |
| 135 | switch(f->size) { |
| 136 | case 1: |
| 137 | { |
| 138 | guint8 x = *(guint8 *)(e->data + f->offset); |
| 139 | return (guint32) x; |
| 140 | } |
| 141 | break; |
| 142 | case 2: |
| 143 | return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset); |
| 144 | break; |
| 145 | case 4: |
| 146 | return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset); |
| 147 | break; |
| 148 | case 8: |
| 149 | default: |
| 150 | g_critical("ltt_event_get_unsigned : field size %i unknown", f->size); |
| 151 | return 0; |
| 152 | break; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | gint32 ltt_event_get_int(LttEvent *e, struct marker_field *f) |
| 157 | { |
| 158 | gboolean reverse_byte_order; |
| 159 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 160 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 161 | } else { |
| 162 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
| 163 | } |
| 164 | |
| 165 | switch(f->size) { |
| 166 | case 1: |
| 167 | { |
| 168 | gint8 x = *(gint8 *)(e->data + f->offset); |
| 169 | return (gint32) x; |
| 170 | } |
| 171 | break; |
| 172 | case 2: |
| 173 | return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset); |
| 174 | break; |
| 175 | case 4: |
| 176 | return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset); |
| 177 | break; |
| 178 | case 8: |
| 179 | default: |
| 180 | g_critical("ltt_event_get_int : field size %i unknown", f->size); |
| 181 | return 0; |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | guint64 ltt_event_get_long_unsigned(LttEvent *e, struct marker_field *f) |
| 187 | { |
| 188 | gboolean reverse_byte_order; |
| 189 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 190 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 191 | } else { |
| 192 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
| 193 | } |
| 194 | |
| 195 | switch(f->size) { |
| 196 | case 1: |
| 197 | { |
| 198 | guint8 x = *(guint8 *)(e->data + f->offset); |
| 199 | return (guint64) x; |
| 200 | } |
| 201 | break; |
| 202 | case 2: |
| 203 | return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset); |
| 204 | break; |
| 205 | case 4: |
| 206 | return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset); |
| 207 | break; |
| 208 | case 8: |
| 209 | return ltt_get_uint64(reverse_byte_order, e->data + f->offset); |
| 210 | break; |
| 211 | default: |
| 212 | g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->size); |
| 213 | return 0; |
| 214 | break; |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | gint64 ltt_event_get_long_int(LttEvent *e, struct marker_field *f) |
| 219 | { |
| 220 | gboolean reverse_byte_order; |
| 221 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 222 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 223 | } else { |
| 224 | reverse_byte_order = LTT_GET_BO(e->tracefile); |
| 225 | } |
| 226 | |
| 227 | switch(f->size) { |
| 228 | case 1: |
| 229 | { |
| 230 | gint8 x = *(gint8 *)(e->data + f->offset); |
| 231 | return (gint64) x; |
| 232 | } |
| 233 | break; |
| 234 | case 2: |
| 235 | return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset); |
| 236 | break; |
| 237 | case 4: |
| 238 | return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset); |
| 239 | break; |
| 240 | case 8: |
| 241 | return ltt_get_int64(reverse_byte_order, e->data + f->offset); |
| 242 | break; |
| 243 | default: |
| 244 | g_critical("ltt_event_get_long_int : field size %i unknown", f->size); |
| 245 | return 0; |
| 246 | break; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | #if 0 |
| 251 | float ltt_event_get_float(LttEvent *e, struct marker_field *f) |
| 252 | { |
| 253 | gboolean reverse_byte_order; |
| 254 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 255 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 256 | } else { |
| 257 | g_assert(LTT_HAS_FLOAT(e->tracefile)); |
| 258 | reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); |
| 259 | } |
| 260 | |
| 261 | g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 4); |
| 262 | |
| 263 | if(reverse_byte_order == 0) return *(float *)(e->data + f->offset); |
| 264 | else{ |
| 265 | void *ptr = e->data + f->offset; |
| 266 | guint32 value = bswap_32(*(guint32*)ptr); |
| 267 | return *(float*)&value; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | double ltt_event_get_double(LttEvent *e, struct marker_field *f) |
| 272 | { |
| 273 | gboolean reverse_byte_order; |
| 274 | if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { |
| 275 | reverse_byte_order = (g_ntohs(0x1) != 0x1); |
| 276 | } else { |
| 277 | g_assert(LTT_HAS_FLOAT(e->tracefile)); |
| 278 | reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); |
| 279 | } |
| 280 | |
| 281 | if(f->size == 4) |
| 282 | return ltt_event_get_float(e, f); |
| 283 | |
| 284 | g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 8); |
| 285 | |
| 286 | if(reverse_byte_order == 0) return *(double *)(e->data + f->offset); |
| 287 | else { |
| 288 | void *ptr = e->data + f->offset; |
| 289 | guint64 value = bswap_64(*(guint64*)ptr); |
| 290 | return *(double*)&value; |
| 291 | } |
| 292 | } |
| 293 | #endif |
| 294 | |
| 295 | /***************************************************************************** |
| 296 | * The string obtained is only valid until the next read from |
| 297 | * the same tracefile. |
| 298 | ****************************************************************************/ |
| 299 | char *ltt_event_get_string(LttEvent *e, struct marker_field *f) |
| 300 | { |
| 301 | g_assert(f->type == LTT_TYPE_STRING); |
| 302 | |
| 303 | return (gchar*)g_strdup((gchar*)(e->data + f->offset)); |
| 304 | } |
| 305 | |
| 306 | |