| 1 | /* This file is part of the Linux Trace Toolkit Graphic User Interface |
| 2 | * Copyright (C) 2003-2004 Mathieu Desnoyers |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License Version 2 as |
| 6 | * published by the Free Software Foundation; |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | /* This file is the API used to launch any background computation on a trace */ |
| 20 | |
| 21 | /* Here is the implementation of the API */ |
| 22 | |
| 23 | #include <sys/types.h> |
| 24 | #include <sys/stat.h> |
| 25 | #include <unistd.h> |
| 26 | |
| 27 | #include <ltt/time.h> |
| 28 | #include <ltt/trace.h> |
| 29 | #include <glib.h> |
| 30 | #include <lttv/lttv.h> |
| 31 | #include <lttv/traceset.h> |
| 32 | #include <lttv/attribute.h> |
| 33 | #include <lttv/tracecontext.h> |
| 34 | #include <lttvwindow/lttvwindowtraces.h> |
| 35 | #include <lttvwindow/lttvwindow.h> // for CHUNK_NUM_EVENTS |
| 36 | |
| 37 | |
| 38 | typedef struct _BackgroundRequest { |
| 39 | LttvAttributeName module_name; /* Hook path in global attributes, |
| 40 | where all standard hooks under computation/. |
| 41 | i.e. modulename */ |
| 42 | LttvTrace *trace; /* trace concerned */ |
| 43 | } BackgroundRequest; |
| 44 | |
| 45 | typedef struct _BackgroundNotify { |
| 46 | gpointer owner; |
| 47 | LttvTrace *trace; /* trace */ |
| 48 | LttTime notify_time; |
| 49 | LttvTracesetContextPosition *notify_position; |
| 50 | LttvHooks *notify; /* Hook to call when the notify is |
| 51 | passed, or at the end of trace */ |
| 52 | } BackgroundNotify; |
| 53 | |
| 54 | |
| 55 | |
| 56 | /* Prototypes */ |
| 57 | gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace); |
| 58 | |
| 59 | /* Get a trace by its path name. |
| 60 | * |
| 61 | * @param path path of the trace on the virtual file system. |
| 62 | * @return Pointer to trace if found |
| 63 | * NULL is returned if the trace is not present |
| 64 | */ |
| 65 | |
| 66 | LttvTrace *lttvwindowtraces_get_trace_by_name(gchar *path) |
| 67 | { |
| 68 | LttvAttribute *attribute = lttv_global_attributes(); |
| 69 | guint i; |
| 70 | |
| 71 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
| 72 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
| 73 | LttTrace *trace; |
| 74 | gchar *name; |
| 75 | g_assert(trace_v != NULL); |
| 76 | |
| 77 | trace = lttv_trace(trace_v); |
| 78 | g_assert(trace != NULL); |
| 79 | name = ltt_trace_name(trace); |
| 80 | |
| 81 | if(strcmp(name, path) == 0) { |
| 82 | /* Found */ |
| 83 | return trace_v; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | return NULL; |
| 88 | } |
| 89 | |
| 90 | /* Get a trace by its number identifier */ |
| 91 | |
| 92 | LttvTrace *lttvwindowtraces_get_trace(guint num) |
| 93 | { |
| 94 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 95 | LttvAttribute *attribute; |
| 96 | LttvAttributeType type; |
| 97 | LttvAttributeName name; |
| 98 | LttvAttributeValue value; |
| 99 | |
| 100 | g_assert(attribute = |
| 101 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 102 | LTTV_TRACES))); |
| 103 | |
| 104 | type = lttv_iattribute_get(LTTV_IATTRIBUTE(attribute), num, &name, &value); |
| 105 | |
| 106 | if(type == LTTV_POINTER) { |
| 107 | return (LttvTrace *)*(value.v_pointer); |
| 108 | } |
| 109 | |
| 110 | return NULL; |
| 111 | } |
| 112 | |
| 113 | /* Total number of traces */ |
| 114 | |
| 115 | guint lttvwindowtraces_get_number() |
| 116 | { |
| 117 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 118 | LttvAttribute *attribute; |
| 119 | LttvAttributeValue value; |
| 120 | |
| 121 | g_assert(attribute = |
| 122 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 123 | LTTV_TRACES))); |
| 124 | |
| 125 | return ( lttv_iattribute_get_number(LTTV_IATTRIBUTE(attribute)) ); |
| 126 | } |
| 127 | |
| 128 | /* Add a trace to the global attributes */ |
| 129 | |
| 130 | void lttvwindowtraces_add_trace(LttvTrace *trace) |
| 131 | { |
| 132 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 133 | LttvAttribute *attribute; |
| 134 | LttvAttributeValue value; |
| 135 | guint num; |
| 136 | struct stat buf; |
| 137 | gchar attribute_path[PATH_MAX]; |
| 138 | |
| 139 | if(stat(ltt_trace_name(lttv_trace(trace)), &buf)) { |
| 140 | g_warning("lttvwindowtraces_add_trace: Trace %s not found", |
| 141 | ltt_trace_name(lttv_trace(trace))); |
| 142 | return; |
| 143 | } |
| 144 | g_assert( |
| 145 | snprintf(attribute_path, PATH_MAX, "%lu:%lu", buf.st_dev, buf.st_ino) >= 0); |
| 146 | |
| 147 | g_assert(attribute = |
| 148 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 149 | LTTV_TRACES))); |
| 150 | |
| 151 | value = lttv_attribute_add(attribute, |
| 152 | g_quark_from_string(attribute_path), |
| 153 | LTTV_POINTER); |
| 154 | |
| 155 | *(value.v_pointer) = (gpointer)trace; |
| 156 | |
| 157 | /* create new traceset and tracesetcontext */ |
| 158 | LttvTraceset *ts; |
| 159 | LttvTracesetStats *tss; |
| 160 | |
| 161 | attribute = lttv_trace_attribute(trace); |
| 162 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 163 | LTTV_COMPUTATION_TRACESET, |
| 164 | LTTV_POINTER, |
| 165 | &value)); |
| 166 | ts = lttv_traceset_new(); |
| 167 | *(value.v_pointer) = ts; |
| 168 | |
| 169 | lttv_traceset_add(ts,trace); |
| 170 | |
| 171 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 172 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
| 173 | LTTV_POINTER, |
| 174 | &value)); |
| 175 | tss = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL); |
| 176 | *(value.v_pointer) = tss; |
| 177 | |
| 178 | lttv_context_init(LTTV_TRACESET_CONTEXT(tss), ts); |
| 179 | |
| 180 | value = lttv_attribute_add(attribute, |
| 181 | LTTV_REQUESTS_QUEUE, |
| 182 | LTTV_POINTER); |
| 183 | |
| 184 | value = lttv_attribute_add(attribute, |
| 185 | LTTV_REQUESTS_CURRENT, |
| 186 | LTTV_POINTER); |
| 187 | |
| 188 | value = lttv_attribute_add(attribute, |
| 189 | LTTV_NOTIFY_QUEUE, |
| 190 | LTTV_POINTER); |
| 191 | |
| 192 | value = lttv_attribute_add(attribute, |
| 193 | LTTV_NOTIFY_CURRENT, |
| 194 | LTTV_POINTER); |
| 195 | |
| 196 | } |
| 197 | |
| 198 | /* Remove a trace from the global attributes */ |
| 199 | |
| 200 | void lttvwindowtraces_remove_trace(LttvTrace *trace) |
| 201 | { |
| 202 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 203 | LttvAttribute *attribute; |
| 204 | LttvAttributeValue value; |
| 205 | guint i; |
| 206 | |
| 207 | g_assert(attribute = |
| 208 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 209 | LTTV_TRACES))); |
| 210 | |
| 211 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
| 212 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
| 213 | |
| 214 | g_assert(trace_v != NULL); |
| 215 | |
| 216 | /* Remove and background computation that could be in progress */ |
| 217 | g_idle_remove_by_data(trace_v); |
| 218 | |
| 219 | if(trace_v == trace) { |
| 220 | /* Found */ |
| 221 | LttvAttribute *l_attribute; |
| 222 | |
| 223 | /* create new traceset and tracesetcontext */ |
| 224 | LttvTraceset *ts; |
| 225 | LttvTracesetStats *tss; |
| 226 | |
| 227 | l_attribute = lttv_trace_attribute(trace); |
| 228 | |
| 229 | |
| 230 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 231 | LTTV_REQUESTS_QUEUE); |
| 232 | |
| 233 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 234 | LTTV_REQUESTS_CURRENT); |
| 235 | |
| 236 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 237 | LTTV_NOTIFY_QUEUE); |
| 238 | |
| 239 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 240 | LTTV_NOTIFY_CURRENT); |
| 241 | |
| 242 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute), |
| 243 | LTTV_COMPUTATION_TRACESET, |
| 244 | LTTV_POINTER, |
| 245 | &value)); |
| 246 | ts = (LttvTraceset*)*(value.v_pointer); |
| 247 | |
| 248 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute), |
| 249 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
| 250 | LTTV_POINTER, |
| 251 | &value)); |
| 252 | tss = (LttvTracesetStats*)*(value.v_pointer); |
| 253 | |
| 254 | lttv_context_fini(LTTV_TRACESET_CONTEXT(tss)); |
| 255 | g_object_unref(tss); |
| 256 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 257 | LTTV_COMPUTATION_TRACESET_CONTEXT); |
| 258 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
| 259 | LTTV_COMPUTATION_TRACESET); |
| 260 | /* Destroy the traceset and the trace also */ |
| 261 | lttv_traceset_destroy(ts); |
| 262 | |
| 263 | /* finally, remove the global attribute */ |
| 264 | lttv_attribute_remove(attribute, i); |
| 265 | |
| 266 | return; |
| 267 | } |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | |
| 272 | /** |
| 273 | * Function to request data from a specific trace |
| 274 | * |
| 275 | * The memory allocated for the request will be managed by the API. |
| 276 | * |
| 277 | * @param trace the trace to compute |
| 278 | * @param module_name the name of the module which registered global computation |
| 279 | * hooks. |
| 280 | */ |
| 281 | |
| 282 | void lttvwindowtraces_background_request_queue |
| 283 | (LttvTrace *trace, gchar *module_name) |
| 284 | { |
| 285 | BackgroundRequest *bg_req; |
| 286 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 287 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 288 | LttvAttribute *module_attribute; |
| 289 | LttvAttributeValue value; |
| 290 | LttvAttributeType type; |
| 291 | GSList **slist; |
| 292 | guint num; |
| 293 | |
| 294 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 295 | LTTV_REQUESTS_QUEUE, |
| 296 | LTTV_POINTER, |
| 297 | &value)); |
| 298 | slist = (GSList**)(value.v_pointer); |
| 299 | |
| 300 | /* Verify that the calculator is loaded */ |
| 301 | g_assert(module_attribute = |
| 302 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 303 | LTTV_COMPUTATION))); |
| 304 | |
| 305 | |
| 306 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 307 | g_quark_from_string(module_name), |
| 308 | &value); |
| 309 | if(type == LTTV_NONE) { |
| 310 | g_critical("Missing background calculator %s", module_name); |
| 311 | return; |
| 312 | } |
| 313 | |
| 314 | bg_req = g_new(BackgroundRequest,1); |
| 315 | bg_req->module_name = g_quark_from_string(module_name); |
| 316 | bg_req->trace = trace; |
| 317 | |
| 318 | *slist = g_slist_append(*slist, bg_req); |
| 319 | |
| 320 | /* Priority lower than live servicing */ |
| 321 | g_idle_remove_by_data(trace); |
| 322 | g_idle_add_full((G_PRIORITY_HIGH_IDLE + 23), |
| 323 | (GSourceFunc)lttvwindowtraces_process_pending_requests, |
| 324 | trace, |
| 325 | NULL); |
| 326 | /* FIXME : show message in status bar, need context and message id */ |
| 327 | g_info("Background computation started for trace %p", trace); |
| 328 | } |
| 329 | |
| 330 | /** |
| 331 | * Remove a background request from a trace. |
| 332 | * |
| 333 | * This should ONLY be used by the modules which registered the global hooks |
| 334 | * (module_name). If this is called by the viewers, it may lead to incomplete |
| 335 | * and incoherent background processing information. |
| 336 | * |
| 337 | * Even if the module which deals with the hooks removes the background |
| 338 | * requests, it may cause a problem if the module gets loaded again in the |
| 339 | * session : the data will be partially calculated. The calculation function |
| 340 | * must deal with this case correctly. |
| 341 | * |
| 342 | * @param trace the trace to compute |
| 343 | * @param module_name the name of the module which registered global computation |
| 344 | * hooks. |
| 345 | */ |
| 346 | |
| 347 | void lttvwindowtraces_background_request_remove |
| 348 | (LttvTrace *trace, gchar *module_name) |
| 349 | { |
| 350 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 351 | LttvAttributeValue value; |
| 352 | GSList *iter = NULL; |
| 353 | GSList **slist; |
| 354 | |
| 355 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 356 | LTTV_REQUESTS_QUEUE, |
| 357 | LTTV_POINTER, |
| 358 | &value)); |
| 359 | slist = (GSList**)(value.v_pointer); |
| 360 | |
| 361 | for(iter=*slist;iter!=NULL;) { |
| 362 | BackgroundRequest *bg_req = |
| 363 | (BackgroundRequest *)iter->data; |
| 364 | |
| 365 | if(bg_req->module_name == g_quark_from_string(module_name)) { |
| 366 | GSList *rem_iter = iter; |
| 367 | iter=g_slist_next(iter); |
| 368 | g_free(bg_req); |
| 369 | *slist = g_slist_delete_link(*slist, rem_iter); |
| 370 | } else { |
| 371 | iter=g_slist_next(iter); |
| 372 | } |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | |
| 377 | /** |
| 378 | * Register a callback to be called when requested data is passed in the next |
| 379 | * queued background processing. |
| 380 | * |
| 381 | * @param owner owner of the background notification |
| 382 | * @param trace the trace computed |
| 383 | * @param notify_time time when notification hooks must be called |
| 384 | * @param notify_position position when notification hooks must be called |
| 385 | * @param notify Hook to call when the notify position is passed |
| 386 | */ |
| 387 | |
| 388 | void lttvwindowtraces_background_notify_queue |
| 389 | (gpointer owner, |
| 390 | LttvTrace *trace, |
| 391 | LttTime notify_time, |
| 392 | const LttvTracesetContextPosition *notify_position, |
| 393 | const LttvHooks *notify) |
| 394 | { |
| 395 | BackgroundNotify *bg_notify; |
| 396 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 397 | LttvAttributeValue value; |
| 398 | GSList **slist; |
| 399 | |
| 400 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 401 | LTTV_NOTIFY_QUEUE, |
| 402 | LTTV_POINTER, |
| 403 | &value)); |
| 404 | slist = (GSList**)(value.v_pointer); |
| 405 | |
| 406 | |
| 407 | bg_notify = g_new(BackgroundNotify,1); |
| 408 | |
| 409 | bg_notify->owner = owner; |
| 410 | bg_notify->trace = trace; |
| 411 | bg_notify->notify_time = notify_time; |
| 412 | if(notify_position != NULL) { |
| 413 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
| 414 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
| 415 | notify_position); |
| 416 | } else { |
| 417 | bg_notify->notify_position = NULL; |
| 418 | } |
| 419 | |
| 420 | bg_notify->notify = lttv_hooks_new(); |
| 421 | lttv_hooks_add_list(bg_notify->notify, notify); |
| 422 | |
| 423 | *slist = g_slist_append(*slist, bg_notify); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Register a callback to be called when requested data is passed in the current |
| 428 | * background processing. |
| 429 | * |
| 430 | * @param owner owner of the background notification |
| 431 | * @param trace the trace computed |
| 432 | * @param notify_time time when notification hooks must be called |
| 433 | * @param notify_position position when notification hooks must be called |
| 434 | * @param notify Hook to call when the notify position is passed |
| 435 | */ |
| 436 | |
| 437 | void lttvwindowtraces_background_notify_current |
| 438 | (gpointer owner, |
| 439 | LttvTrace *trace, |
| 440 | LttTime notify_time, |
| 441 | const LttvTracesetContextPosition *notify_position, |
| 442 | const LttvHooks *notify) |
| 443 | { |
| 444 | BackgroundNotify *bg_notify; |
| 445 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 446 | LttvAttributeValue value; |
| 447 | GSList **slist; |
| 448 | |
| 449 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 450 | LTTV_NOTIFY_CURRENT, |
| 451 | LTTV_POINTER, |
| 452 | &value)); |
| 453 | slist = (GSList**)(value.v_pointer); |
| 454 | |
| 455 | bg_notify = g_new(BackgroundNotify,1); |
| 456 | |
| 457 | bg_notify->owner = owner; |
| 458 | bg_notify->trace = trace; |
| 459 | bg_notify->notify_time = notify_time; |
| 460 | if(notify_position!= NULL) { |
| 461 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
| 462 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
| 463 | notify_position); |
| 464 | } else { |
| 465 | bg_notify->notify_position = NULL; |
| 466 | } |
| 467 | bg_notify->notify = lttv_hooks_new(); |
| 468 | lttv_hooks_add_list(bg_notify->notify, notify); |
| 469 | |
| 470 | *slist = g_slist_append(*slist, bg_notify); |
| 471 | } |
| 472 | |
| 473 | |
| 474 | static void notify_request_free(BackgroundNotify *notify_req) |
| 475 | { |
| 476 | if(notify_req == NULL) return; |
| 477 | |
| 478 | if(notify_req->notify_position != NULL) |
| 479 | lttv_traceset_context_position_destroy(notify_req->notify_position); |
| 480 | if(notify_req->notify != NULL) |
| 481 | lttv_hooks_destroy(notify_req->notify); |
| 482 | g_free(notify_req); |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Removes all the notifications requests from a specific viewer. |
| 487 | * |
| 488 | * @param owner owner of the background notification |
| 489 | */ |
| 490 | |
| 491 | void lttvwindowtraces_background_notify_remove(gpointer owner) |
| 492 | { |
| 493 | guint i; |
| 494 | |
| 495 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
| 496 | LttvAttribute *attribute; |
| 497 | LttvAttributeValue value; |
| 498 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
| 499 | GSList **slist; |
| 500 | GSList *iter = NULL; |
| 501 | |
| 502 | g_assert(trace_v != NULL); |
| 503 | |
| 504 | attribute = lttv_trace_attribute(trace_v); |
| 505 | |
| 506 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 507 | LTTV_NOTIFY_QUEUE, |
| 508 | LTTV_POINTER, |
| 509 | &value)); |
| 510 | slist = (GSList**)(value.v_pointer); |
| 511 | |
| 512 | for(iter=*slist;iter!=NULL;) { |
| 513 | |
| 514 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
| 515 | |
| 516 | if(bg_notify->owner == owner) { |
| 517 | GSList *rem_iter = iter; |
| 518 | iter=g_slist_next(iter); |
| 519 | notify_request_free(bg_notify); |
| 520 | *slist = g_slist_remove_link(*slist, rem_iter); |
| 521 | } else { |
| 522 | iter=g_slist_next(iter); |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 527 | LTTV_NOTIFY_CURRENT, |
| 528 | LTTV_POINTER, |
| 529 | &value)); |
| 530 | slist = (GSList**)(value.v_pointer); |
| 531 | |
| 532 | for(iter=*slist;iter!=NULL;) { |
| 533 | |
| 534 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
| 535 | |
| 536 | if(bg_notify->owner == owner) { |
| 537 | GSList *rem_iter = iter; |
| 538 | iter=g_slist_next(iter); |
| 539 | notify_request_free(bg_notify); |
| 540 | *slist = g_slist_remove_link(*slist, rem_iter); |
| 541 | } else { |
| 542 | iter=g_slist_next(iter); |
| 543 | } |
| 544 | } |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | |
| 549 | /* Background processing helper functions */ |
| 550 | |
| 551 | void lttvwindowtraces_add_computation_hooks(LttvAttributeName module_name, |
| 552 | LttvTracesetContext *tsc, |
| 553 | LttvHooks *hook_adder) |
| 554 | { |
| 555 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 556 | LttvAttribute *module_attribute; |
| 557 | LttvAttributeType type; |
| 558 | LttvAttributeValue value; |
| 559 | LttvHooks *before_chunk_traceset=NULL; |
| 560 | LttvHooks *before_chunk_trace=NULL; |
| 561 | LttvHooks *before_chunk_tracefile=NULL; |
| 562 | LttvHooks *event_hook=NULL; |
| 563 | LttvHooksById *event_hook_by_id=NULL; |
| 564 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
| 565 | |
| 566 | |
| 567 | g_assert(module_attribute = |
| 568 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 569 | LTTV_COMPUTATION))); |
| 570 | |
| 571 | g_assert(module_attribute = |
| 572 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 573 | LTTV_IATTRIBUTE(module_attribute), |
| 574 | module_name))); |
| 575 | |
| 576 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 577 | LTTV_BEFORE_CHUNK_TRACESET, |
| 578 | &value); |
| 579 | if(type == LTTV_POINTER) { |
| 580 | before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
| 581 | } |
| 582 | |
| 583 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 584 | LTTV_BEFORE_CHUNK_TRACE, |
| 585 | &value); |
| 586 | if(type == LTTV_POINTER) { |
| 587 | before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
| 588 | } |
| 589 | |
| 590 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 591 | LTTV_BEFORE_CHUNK_TRACEFILE, |
| 592 | &value); |
| 593 | if(type == LTTV_POINTER) { |
| 594 | before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
| 595 | } |
| 596 | |
| 597 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 598 | LTTV_EVENT_HOOK, |
| 599 | &value); |
| 600 | if(type == LTTV_POINTER) { |
| 601 | event_hook = (LttvHooks*)*(value.v_pointer); |
| 602 | } |
| 603 | |
| 604 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 605 | LTTV_EVENT_HOOK_BY_ID, |
| 606 | &value); |
| 607 | if(type == LTTV_POINTER) { |
| 608 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
| 609 | } |
| 610 | |
| 611 | /* Call the module's hook adder */ |
| 612 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 613 | LTTV_HOOK_ADDER, |
| 614 | &value); |
| 615 | if(type == LTTV_POINTER) { |
| 616 | //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
| 617 | if(hook_adder != NULL) |
| 618 | lttv_hooks_add_list(hook_adder, (LttvHooks*)*(value.v_pointer)); |
| 619 | } |
| 620 | |
| 621 | |
| 622 | |
| 623 | lttv_process_traceset_begin(tsc, |
| 624 | before_chunk_traceset, |
| 625 | before_chunk_trace, |
| 626 | before_chunk_tracefile, |
| 627 | event_hook, |
| 628 | event_hook_by_id); |
| 629 | |
| 630 | } |
| 631 | |
| 632 | void lttvwindowtraces_remove_computation_hooks(LttvAttributeName module_name, |
| 633 | LttvTracesetContext *tsc, |
| 634 | LttvHooks *hook_remover) |
| 635 | { |
| 636 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 637 | LttvAttribute *module_attribute; |
| 638 | LttvAttributeType type; |
| 639 | LttvAttributeValue value; |
| 640 | LttvHooks *after_chunk_traceset=NULL; |
| 641 | LttvHooks *after_chunk_trace=NULL; |
| 642 | LttvHooks *after_chunk_tracefile=NULL; |
| 643 | LttvHooks *event_hook=NULL; |
| 644 | LttvHooksById *event_hook_by_id=NULL; |
| 645 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
| 646 | |
| 647 | g_assert(module_attribute = |
| 648 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 649 | LTTV_COMPUTATION))); |
| 650 | |
| 651 | g_assert(module_attribute = |
| 652 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 653 | LTTV_IATTRIBUTE(module_attribute), |
| 654 | module_name))); |
| 655 | |
| 656 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 657 | LTTV_AFTER_CHUNK_TRACESET, |
| 658 | &value); |
| 659 | if(type == LTTV_POINTER) { |
| 660 | after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
| 661 | } |
| 662 | |
| 663 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 664 | LTTV_AFTER_CHUNK_TRACE, |
| 665 | &value); |
| 666 | if(type == LTTV_POINTER) { |
| 667 | after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
| 668 | } |
| 669 | |
| 670 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 671 | LTTV_AFTER_CHUNK_TRACEFILE, |
| 672 | &value); |
| 673 | if(type == LTTV_POINTER) { |
| 674 | after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
| 675 | } |
| 676 | |
| 677 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 678 | LTTV_EVENT_HOOK, |
| 679 | &value); |
| 680 | if(type == LTTV_POINTER) { |
| 681 | event_hook = (LttvHooks*)*(value.v_pointer); |
| 682 | } |
| 683 | |
| 684 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 685 | LTTV_EVENT_HOOK_BY_ID, |
| 686 | &value); |
| 687 | if(type == LTTV_POINTER) { |
| 688 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
| 689 | } |
| 690 | |
| 691 | lttv_process_traceset_end(tsc, |
| 692 | after_chunk_traceset, |
| 693 | after_chunk_trace, |
| 694 | after_chunk_tracefile, |
| 695 | event_hook, |
| 696 | event_hook_by_id); |
| 697 | |
| 698 | /* Call the module's hook remover */ |
| 699 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 700 | LTTV_HOOK_REMOVER, |
| 701 | &value); |
| 702 | if(type == LTTV_POINTER) { |
| 703 | //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
| 704 | if(hook_remover != NULL) |
| 705 | lttv_hooks_add_list(hook_remover, (LttvHooks*)*(value.v_pointer)); |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | |
| 710 | void lttvwindowtraces_set_in_progress(LttvAttributeName module_name, |
| 711 | LttvTrace *trace) |
| 712 | { |
| 713 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 714 | LttvAttributeValue value; |
| 715 | |
| 716 | g_assert(attribute = |
| 717 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 718 | module_name))); |
| 719 | |
| 720 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
| 721 | LTTV_IN_PROGRESS, |
| 722 | LTTV_INT); |
| 723 | /* the value is left unset. The only presence of the attribute is necessary. |
| 724 | */ |
| 725 | } |
| 726 | |
| 727 | void lttvwindowtraces_unset_in_progress(LttvAttributeName module_name, |
| 728 | LttvTrace *trace) |
| 729 | { |
| 730 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 731 | |
| 732 | g_assert(attribute = |
| 733 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 734 | module_name))); |
| 735 | |
| 736 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 737 | LTTV_IN_PROGRESS); |
| 738 | } |
| 739 | |
| 740 | gboolean lttvwindowtraces_get_in_progress(LttvAttributeName module_name, |
| 741 | LttvTrace *trace) |
| 742 | { |
| 743 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 744 | LttvAttributeType type; |
| 745 | LttvAttributeValue value; |
| 746 | |
| 747 | g_assert(attribute = |
| 748 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 749 | module_name))); |
| 750 | |
| 751 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 752 | LTTV_IN_PROGRESS, |
| 753 | &value); |
| 754 | /* The only presence of the attribute is necessary. */ |
| 755 | if(type == LTTV_NONE) |
| 756 | return FALSE; |
| 757 | else |
| 758 | return TRUE; |
| 759 | } |
| 760 | |
| 761 | void lttvwindowtraces_set_ready(LttvAttributeName module_name, |
| 762 | LttvTrace *trace) |
| 763 | { |
| 764 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 765 | LttvAttributeValue value; |
| 766 | |
| 767 | g_assert(attribute = |
| 768 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 769 | module_name))); |
| 770 | |
| 771 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
| 772 | LTTV_READY, |
| 773 | LTTV_INT); |
| 774 | /* the value is left unset. The only presence of the attribute is necessary. |
| 775 | */ |
| 776 | } |
| 777 | |
| 778 | void lttvwindowtraces_unset_ready(LttvAttributeName module_name, |
| 779 | LttvTrace *trace) |
| 780 | { |
| 781 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 782 | |
| 783 | g_assert(attribute = |
| 784 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 785 | module_name))); |
| 786 | |
| 787 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 788 | LTTV_READY); |
| 789 | } |
| 790 | |
| 791 | gboolean lttvwindowtraces_get_ready(LttvAttributeName module_name, |
| 792 | LttvTrace *trace) |
| 793 | { |
| 794 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 795 | LttvAttributeType type; |
| 796 | LttvAttributeValue value; |
| 797 | |
| 798 | g_assert(attribute = |
| 799 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 800 | module_name))); |
| 801 | |
| 802 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 803 | LTTV_READY, |
| 804 | &value); |
| 805 | /* The only presence of the attribute is necessary. */ |
| 806 | if(type == LTTV_NONE) |
| 807 | return FALSE; |
| 808 | else |
| 809 | return TRUE; |
| 810 | } |
| 811 | |
| 812 | |
| 813 | /* lttvwindowtraces_process_pending_requests |
| 814 | * |
| 815 | * This internal function gets called by g_idle, taking care of the pending |
| 816 | * requests. |
| 817 | * |
| 818 | */ |
| 819 | |
| 820 | |
| 821 | gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace) |
| 822 | { |
| 823 | LttvTracesetContext *tsc; |
| 824 | LttvTracesetStats *tss; |
| 825 | LttvTraceset *ts; |
| 826 | LttvAttribute *attribute; |
| 827 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 828 | GSList **list_out, **list_in, **notify_in, **notify_out; |
| 829 | LttvAttributeValue value; |
| 830 | LttvAttributeType type; |
| 831 | gboolean ret_val; |
| 832 | LttvHooks *before_request, *after_request; |
| 833 | |
| 834 | if(trace == NULL) |
| 835 | return FALSE; |
| 836 | |
| 837 | attribute = lttv_trace_attribute(trace); |
| 838 | |
| 839 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 840 | LTTV_REQUESTS_QUEUE, |
| 841 | &value); |
| 842 | g_assert(type == LTTV_POINTER); |
| 843 | list_out = (GSList**)(value.v_pointer); |
| 844 | |
| 845 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 846 | LTTV_REQUESTS_CURRENT, |
| 847 | &value); |
| 848 | g_assert(type == LTTV_POINTER); |
| 849 | list_in = (GSList**)(value.v_pointer); |
| 850 | |
| 851 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 852 | LTTV_NOTIFY_QUEUE, |
| 853 | &value); |
| 854 | g_assert(type == LTTV_POINTER); |
| 855 | notify_out = (GSList**)(value.v_pointer); |
| 856 | |
| 857 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 858 | LTTV_NOTIFY_CURRENT, |
| 859 | &value); |
| 860 | g_assert(type == LTTV_POINTER); |
| 861 | notify_in = (GSList**)(value.v_pointer); |
| 862 | |
| 863 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 864 | LTTV_COMPUTATION_TRACESET, |
| 865 | &value); |
| 866 | g_assert(type == LTTV_POINTER); |
| 867 | ts = (LttvTraceset*)*(value.v_pointer); |
| 868 | |
| 869 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 870 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
| 871 | &value); |
| 872 | g_assert(type == LTTV_POINTER); |
| 873 | tsc = (LttvTracesetContext*)*(value.v_pointer); |
| 874 | tss = (LttvTracesetStats*)*(value.v_pointer); |
| 875 | g_assert(LTTV_IS_TRACESET_CONTEXT(tsc)); |
| 876 | g_assert(LTTV_IS_TRACESET_STATS(tss)); |
| 877 | |
| 878 | /* There is no events requests pending : we should never have been called! */ |
| 879 | g_assert(g_slist_length(*list_out) != 0 || g_slist_length(*list_in) != 0); |
| 880 | |
| 881 | /* 0.1 Lock traces */ |
| 882 | { |
| 883 | guint iter_trace=0; |
| 884 | |
| 885 | for(iter_trace=0; |
| 886 | iter_trace<lttv_traceset_number(tsc->ts); |
| 887 | iter_trace++) { |
| 888 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts,iter_trace); |
| 889 | |
| 890 | if(lttvwindowtraces_lock(trace_v) != 0) |
| 891 | return TRUE; /* Cannot get trace lock, try later */ |
| 892 | |
| 893 | } |
| 894 | } |
| 895 | /* 0.2 Sync tracefiles */ |
| 896 | lttv_process_traceset_synchronize_tracefiles(tsc); |
| 897 | |
| 898 | /* 1. Before processing */ |
| 899 | { |
| 900 | /* if list_in is empty */ |
| 901 | if(g_slist_length(*list_in) == 0) { |
| 902 | |
| 903 | { |
| 904 | /* - Add all requests in list_out to list_in, empty list_out */ |
| 905 | GSList *iter = *list_out; |
| 906 | |
| 907 | while(iter != NULL) { |
| 908 | gboolean remove = FALSE; |
| 909 | gboolean free_data = FALSE; |
| 910 | |
| 911 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 912 | |
| 913 | remove = TRUE; |
| 914 | free_data = FALSE; |
| 915 | *list_in = g_slist_append(*list_in, bg_req); |
| 916 | |
| 917 | /* Go to next */ |
| 918 | if(remove) |
| 919 | { |
| 920 | GSList *remove_iter = iter; |
| 921 | |
| 922 | iter = g_slist_next(iter); |
| 923 | if(free_data) g_free(remove_iter->data); |
| 924 | *list_out = g_slist_remove_link(*list_out, remove_iter); |
| 925 | } else { // not remove |
| 926 | iter = g_slist_next(iter); |
| 927 | } |
| 928 | } |
| 929 | } |
| 930 | |
| 931 | { |
| 932 | GSList *iter = *list_in; |
| 933 | /* - for each request in list_in */ |
| 934 | while(iter != NULL) { |
| 935 | |
| 936 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 937 | /* - set hooks'in_progress flag to TRUE */ |
| 938 | lttvwindowtraces_set_in_progress(bg_req->module_name, |
| 939 | bg_req->trace); |
| 940 | |
| 941 | /* - call before request hook */ |
| 942 | /* Get before request hook */ |
| 943 | LttvAttribute *module_attribute; |
| 944 | |
| 945 | g_assert(module_attribute = |
| 946 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 947 | LTTV_IATTRIBUTE(g_attribute), |
| 948 | LTTV_COMPUTATION))); |
| 949 | |
| 950 | g_assert(module_attribute = |
| 951 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 952 | LTTV_IATTRIBUTE(module_attribute), |
| 953 | bg_req->module_name))); |
| 954 | |
| 955 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 956 | LTTV_BEFORE_REQUEST, |
| 957 | &value); |
| 958 | g_assert(type == LTTV_POINTER); |
| 959 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
| 960 | |
| 961 | |
| 962 | if(before_request != NULL) lttv_hooks_call(before_request, tsc); |
| 963 | |
| 964 | iter = g_slist_next(iter); |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | /* - seek trace to start */ |
| 969 | { |
| 970 | LttTime start = { 0, 0}; |
| 971 | lttv_process_traceset_seek_time(tsc, start); |
| 972 | } |
| 973 | |
| 974 | /* - Move all notifications from notify_out to notify_in. */ |
| 975 | { |
| 976 | GSList *iter = *notify_out; |
| 977 | g_assert(g_slist_length(*notify_in) == 0); |
| 978 | |
| 979 | while(iter != NULL) { |
| 980 | gboolean remove = FALSE; |
| 981 | gboolean free_data = FALSE; |
| 982 | |
| 983 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
| 984 | |
| 985 | remove = TRUE; |
| 986 | free_data = FALSE; |
| 987 | *notify_in = g_slist_append(*notify_in, notify_req); |
| 988 | |
| 989 | /* Go to next */ |
| 990 | if(remove) |
| 991 | { |
| 992 | GSList *remove_iter = iter; |
| 993 | |
| 994 | iter = g_slist_next(iter); |
| 995 | if(free_data) |
| 996 | notify_request_free((BackgroundNotify*)remove_iter->data); |
| 997 | *notify_out = g_slist_remove_link(*notify_out, remove_iter); |
| 998 | } else { // not remove |
| 999 | iter = g_slist_next(iter); |
| 1000 | } |
| 1001 | } |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | { |
| 1006 | GSList *iter = *list_in; |
| 1007 | LttvHooks *hook_adder = lttv_hooks_new(); |
| 1008 | /* - for each request in list_in */ |
| 1009 | while(iter != NULL) { |
| 1010 | |
| 1011 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 1012 | /*- Call before chunk hooks for list_in*/ |
| 1013 | /*- add hooks to context*/ |
| 1014 | lttvwindowtraces_add_computation_hooks(bg_req->module_name, |
| 1015 | tsc, |
| 1016 | hook_adder); |
| 1017 | iter = g_slist_next(iter); |
| 1018 | } |
| 1019 | lttv_hooks_call(hook_adder,tsc); |
| 1020 | lttv_hooks_destroy(hook_adder); |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | /* 2. call process traceset middle for a chunk */ |
| 1025 | { |
| 1026 | /*(assert list_in is not empty! : should not even be called in that case)*/ |
| 1027 | LttTime end = ltt_time_infinite; |
| 1028 | g_assert(g_slist_length(*list_in) != 0); |
| 1029 | |
| 1030 | lttv_process_traceset_middle(tsc, end, CHUNK_NUM_EVENTS, NULL); |
| 1031 | } |
| 1032 | |
| 1033 | /* 3. After the chunk */ |
| 1034 | { |
| 1035 | /* 3.1 call after_chunk hooks for list_in */ |
| 1036 | { |
| 1037 | GSList *iter = *list_in; |
| 1038 | LttvHooks *hook_remover = lttv_hooks_new(); |
| 1039 | /* - for each request in list_in */ |
| 1040 | while(iter != NULL) { |
| 1041 | |
| 1042 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 1043 | /* - Call after chunk hooks for list_in */ |
| 1044 | /* - remove hooks from context */ |
| 1045 | lttvwindowtraces_remove_computation_hooks(bg_req->module_name, |
| 1046 | tsc, |
| 1047 | hook_remover); |
| 1048 | iter = g_slist_next(iter); |
| 1049 | } |
| 1050 | lttv_hooks_call(hook_remover,tsc); |
| 1051 | lttv_hooks_destroy(hook_remover); |
| 1052 | } |
| 1053 | |
| 1054 | /* 3.2 for each notify_in */ |
| 1055 | { |
| 1056 | GSList *iter = *notify_in; |
| 1057 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
| 1058 | |
| 1059 | while(iter != NULL) { |
| 1060 | gboolean remove = FALSE; |
| 1061 | gboolean free_data = FALSE; |
| 1062 | |
| 1063 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
| 1064 | |
| 1065 | /* - if current time >= notify time, call notify and remove from |
| 1066 | * notify_in. |
| 1067 | * - if current position >= notify position, call notify and remove |
| 1068 | * from notify_in. |
| 1069 | */ |
| 1070 | if( (tfc != NULL && |
| 1071 | ltt_time_compare(notify_req->notify_time, tfc->timestamp) <= 0) |
| 1072 | || |
| 1073 | (notify_req->notify_position != NULL && |
| 1074 | lttv_traceset_context_ctx_pos_compare(tsc, |
| 1075 | notify_req->notify_position) >= 0) |
| 1076 | ) { |
| 1077 | |
| 1078 | lttv_hooks_call(notify_req->notify, notify_req); |
| 1079 | |
| 1080 | remove = TRUE; |
| 1081 | free_data = TRUE; |
| 1082 | } |
| 1083 | |
| 1084 | /* Go to next */ |
| 1085 | if(remove) |
| 1086 | { |
| 1087 | GSList *remove_iter = iter; |
| 1088 | |
| 1089 | iter = g_slist_next(iter); |
| 1090 | if(free_data) |
| 1091 | notify_request_free((BackgroundNotify*)remove_iter->data); |
| 1092 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
| 1093 | } else { // not remove |
| 1094 | iter = g_slist_next(iter); |
| 1095 | } |
| 1096 | } |
| 1097 | } |
| 1098 | |
| 1099 | { |
| 1100 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
| 1101 | /* 3.3 if end of trace reached */ |
| 1102 | if(tfc != NULL) |
| 1103 | g_debug("Current time : %lu sec, %lu nsec", |
| 1104 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
| 1105 | if(tfc == NULL || ltt_time_compare(tfc->timestamp, |
| 1106 | tsc->time_span.end_time) > 0) { |
| 1107 | |
| 1108 | /* - for each request in list_in */ |
| 1109 | { |
| 1110 | GSList *iter = *list_in; |
| 1111 | |
| 1112 | while(iter != NULL) { |
| 1113 | gboolean remove = FALSE; |
| 1114 | gboolean free_data = FALSE; |
| 1115 | |
| 1116 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 1117 | |
| 1118 | /* - set hooks'in_progress flag to FALSE */ |
| 1119 | lttvwindowtraces_unset_in_progress(bg_req->module_name, |
| 1120 | bg_req->trace); |
| 1121 | /* - set hooks'ready flag to TRUE */ |
| 1122 | lttvwindowtraces_set_ready(bg_req->module_name, |
| 1123 | bg_req->trace); |
| 1124 | /* - call after request hook */ |
| 1125 | /* Get after request hook */ |
| 1126 | LttvAttribute *module_attribute; |
| 1127 | |
| 1128 | g_assert(module_attribute = |
| 1129 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 1130 | LTTV_IATTRIBUTE(g_attribute), |
| 1131 | LTTV_COMPUTATION))); |
| 1132 | |
| 1133 | g_assert(module_attribute = |
| 1134 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
| 1135 | LTTV_IATTRIBUTE(module_attribute), |
| 1136 | bg_req->module_name))); |
| 1137 | |
| 1138 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
| 1139 | LTTV_AFTER_REQUEST, |
| 1140 | &value); |
| 1141 | g_assert(type == LTTV_POINTER); |
| 1142 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
| 1143 | |
| 1144 | if(after_request != NULL) lttv_hooks_call(after_request, tsc); |
| 1145 | /* - remove request */ |
| 1146 | remove = TRUE; |
| 1147 | free_data = TRUE; |
| 1148 | |
| 1149 | /* Go to next */ |
| 1150 | if(remove) |
| 1151 | { |
| 1152 | GSList *remove_iter = iter; |
| 1153 | |
| 1154 | iter = g_slist_next(iter); |
| 1155 | if(free_data) g_free(remove_iter->data); |
| 1156 | *list_in = g_slist_remove_link(*list_in, remove_iter); |
| 1157 | } else { // not remove |
| 1158 | iter = g_slist_next(iter); |
| 1159 | } |
| 1160 | } |
| 1161 | } |
| 1162 | |
| 1163 | /* - for each notifications in notify_in */ |
| 1164 | { |
| 1165 | GSList *iter = *notify_in; |
| 1166 | |
| 1167 | while(iter != NULL) { |
| 1168 | gboolean remove = FALSE; |
| 1169 | gboolean free_data = FALSE; |
| 1170 | |
| 1171 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
| 1172 | |
| 1173 | /* - call notify and remove from notify_in */ |
| 1174 | lttv_hooks_call(notify_req->notify, notify_req); |
| 1175 | remove = TRUE; |
| 1176 | free_data = TRUE; |
| 1177 | |
| 1178 | /* Go to next */ |
| 1179 | if(remove) |
| 1180 | { |
| 1181 | GSList *remove_iter = iter; |
| 1182 | |
| 1183 | iter = g_slist_next(iter); |
| 1184 | if(free_data) |
| 1185 | notify_request_free((BackgroundNotify*)remove_iter->data); |
| 1186 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
| 1187 | } else { // not remove |
| 1188 | iter = g_slist_next(iter); |
| 1189 | } |
| 1190 | } |
| 1191 | } |
| 1192 | { |
| 1193 | /* - reset the context */ |
| 1194 | LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->fini(tsc); |
| 1195 | LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->init(tsc,ts); |
| 1196 | } |
| 1197 | /* - if list_out is empty */ |
| 1198 | if(g_slist_length(*list_out) == 0) { |
| 1199 | /* - return FALSE (scheduler stopped) */ |
| 1200 | g_debug("Background computation scheduler stopped"); |
| 1201 | g_info("Background computation finished for trace %p", trace); |
| 1202 | /* FIXME : remove status bar info, need context id and message id */ |
| 1203 | ret_val = FALSE; |
| 1204 | } else { |
| 1205 | ret_val = TRUE; |
| 1206 | } |
| 1207 | } else { |
| 1208 | /* 3.4 else, end of trace not reached */ |
| 1209 | /* - return TRUE (scheduler still registered) */ |
| 1210 | g_debug("Background computation left"); |
| 1211 | ret_val = TRUE; |
| 1212 | } |
| 1213 | } |
| 1214 | } |
| 1215 | /* 4. Unlock traces */ |
| 1216 | { |
| 1217 | //lttv_process_traceset_get_sync_data(tsc); |
| 1218 | guint iter_trace; |
| 1219 | |
| 1220 | for(iter_trace=0; |
| 1221 | iter_trace<lttv_traceset_number(tsc->ts); |
| 1222 | iter_trace++) { |
| 1223 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts, iter_trace); |
| 1224 | |
| 1225 | lttvwindowtraces_unlock(trace_v); |
| 1226 | } |
| 1227 | } |
| 1228 | return ret_val; |
| 1229 | } |
| 1230 | |
| 1231 | |
| 1232 | |
| 1233 | /** |
| 1234 | * Register the background computation hooks for a specific module. It adds the |
| 1235 | * computation hooks to the global attrubutes, under "computation/module name". |
| 1236 | * |
| 1237 | * @param module_name A GQuark : the name of the module which computes the |
| 1238 | * information. |
| 1239 | */ |
| 1240 | void lttvwindowtraces_register_computation_hooks(LttvAttributeName module_name, |
| 1241 | LttvHooks *before_chunk_traceset, |
| 1242 | LttvHooks *before_chunk_trace, |
| 1243 | LttvHooks *before_chunk_tracefile, |
| 1244 | LttvHooks *after_chunk_traceset, |
| 1245 | LttvHooks *after_chunk_trace, |
| 1246 | LttvHooks *after_chunk_tracefile, |
| 1247 | LttvHooks *before_request, |
| 1248 | LttvHooks *after_request, |
| 1249 | LttvHooks *event_hook, |
| 1250 | LttvHooksById *event_hook_by_id, |
| 1251 | LttvHooks *hook_adder, |
| 1252 | LttvHooks *hook_remover) |
| 1253 | { |
| 1254 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 1255 | LttvAttribute *attribute; |
| 1256 | LttvAttributeValue value; |
| 1257 | |
| 1258 | g_assert(attribute = |
| 1259 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 1260 | LTTV_COMPUTATION))); |
| 1261 | |
| 1262 | g_assert(attribute = |
| 1263 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 1264 | module_name))); |
| 1265 | |
| 1266 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1267 | LTTV_BEFORE_CHUNK_TRACESET, |
| 1268 | LTTV_POINTER, |
| 1269 | &value)); |
| 1270 | *(value.v_pointer) = before_chunk_traceset; |
| 1271 | |
| 1272 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1273 | LTTV_BEFORE_CHUNK_TRACE, |
| 1274 | LTTV_POINTER, |
| 1275 | &value)); |
| 1276 | *(value.v_pointer) = before_chunk_trace; |
| 1277 | |
| 1278 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1279 | LTTV_BEFORE_CHUNK_TRACEFILE, |
| 1280 | LTTV_POINTER, |
| 1281 | &value)); |
| 1282 | *(value.v_pointer) = before_chunk_tracefile; |
| 1283 | |
| 1284 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1285 | LTTV_AFTER_CHUNK_TRACESET, |
| 1286 | LTTV_POINTER, |
| 1287 | &value)); |
| 1288 | *(value.v_pointer) = after_chunk_traceset; |
| 1289 | |
| 1290 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1291 | LTTV_AFTER_CHUNK_TRACE, |
| 1292 | LTTV_POINTER, |
| 1293 | &value)); |
| 1294 | *(value.v_pointer) = after_chunk_trace; |
| 1295 | |
| 1296 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1297 | LTTV_AFTER_CHUNK_TRACEFILE, |
| 1298 | LTTV_POINTER, |
| 1299 | &value)); |
| 1300 | *(value.v_pointer) = after_chunk_tracefile; |
| 1301 | |
| 1302 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1303 | LTTV_BEFORE_REQUEST, |
| 1304 | LTTV_POINTER, |
| 1305 | &value)); |
| 1306 | *(value.v_pointer) = before_request; |
| 1307 | |
| 1308 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1309 | LTTV_AFTER_REQUEST, |
| 1310 | LTTV_POINTER, |
| 1311 | &value)); |
| 1312 | *(value.v_pointer) = after_request; |
| 1313 | |
| 1314 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1315 | LTTV_EVENT_HOOK, |
| 1316 | LTTV_POINTER, |
| 1317 | &value)); |
| 1318 | *(value.v_pointer) = event_hook; |
| 1319 | |
| 1320 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1321 | LTTV_EVENT_HOOK_BY_ID, |
| 1322 | LTTV_POINTER, |
| 1323 | &value)); |
| 1324 | *(value.v_pointer) = event_hook_by_id; |
| 1325 | |
| 1326 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1327 | LTTV_HOOK_ADDER, |
| 1328 | LTTV_POINTER, |
| 1329 | &value)); |
| 1330 | *(value.v_pointer) = hook_adder; |
| 1331 | |
| 1332 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1333 | LTTV_HOOK_REMOVER, |
| 1334 | LTTV_POINTER, |
| 1335 | &value)); |
| 1336 | *(value.v_pointer) = hook_remover; |
| 1337 | |
| 1338 | } |
| 1339 | |
| 1340 | |
| 1341 | /** |
| 1342 | * It removes all the requests than can be currently processed by the |
| 1343 | * background computation algorithm for all the traces (list_in and list_out). |
| 1344 | * |
| 1345 | * Leaves the flag to in_progress or none.. depending if current or queue |
| 1346 | * |
| 1347 | * @param module_name A GQuark : the name of the module which computes the |
| 1348 | * information. |
| 1349 | */ |
| 1350 | void lttvwindowtraces_unregister_requests(LttvAttributeName module_name) |
| 1351 | { |
| 1352 | guint i; |
| 1353 | |
| 1354 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
| 1355 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
| 1356 | g_assert(trace_v != NULL); |
| 1357 | LttTrace *trace; |
| 1358 | LttvAttribute *attribute = lttv_trace_attribute(trace_v); |
| 1359 | LttvAttributeValue value; |
| 1360 | GSList **queue, **current; |
| 1361 | GSList *iter; |
| 1362 | |
| 1363 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1364 | LTTV_REQUESTS_QUEUE, |
| 1365 | LTTV_POINTER, |
| 1366 | &value)); |
| 1367 | queue = (GSList**)(value.v_pointer); |
| 1368 | |
| 1369 | iter = *queue; |
| 1370 | while(iter != NULL) { |
| 1371 | gboolean remove = FALSE; |
| 1372 | gboolean free_data = FALSE; |
| 1373 | |
| 1374 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 1375 | |
| 1376 | if(bg_req->module_name == module_name) { |
| 1377 | remove = TRUE; |
| 1378 | free_data = TRUE; |
| 1379 | } |
| 1380 | |
| 1381 | /* Go to next */ |
| 1382 | if(remove) |
| 1383 | { |
| 1384 | GSList *remove_iter = iter; |
| 1385 | |
| 1386 | iter = g_slist_next(iter); |
| 1387 | if(free_data) g_free(remove_iter->data); |
| 1388 | *queue = g_slist_remove_link(*queue, remove_iter); |
| 1389 | } else { // not remove |
| 1390 | iter = g_slist_next(iter); |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | |
| 1395 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1396 | LTTV_REQUESTS_CURRENT, |
| 1397 | LTTV_POINTER, |
| 1398 | &value)); |
| 1399 | current = (GSList**)(value.v_pointer); |
| 1400 | |
| 1401 | iter = *current; |
| 1402 | while(iter != NULL) { |
| 1403 | gboolean remove = FALSE; |
| 1404 | gboolean free_data = FALSE; |
| 1405 | |
| 1406 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
| 1407 | |
| 1408 | if(bg_req->module_name == module_name) { |
| 1409 | remove = TRUE; |
| 1410 | free_data = TRUE; |
| 1411 | } |
| 1412 | |
| 1413 | /* Go to next */ |
| 1414 | if(remove) |
| 1415 | { |
| 1416 | GSList *remove_iter = iter; |
| 1417 | |
| 1418 | iter = g_slist_next(iter); |
| 1419 | if(free_data) g_free(remove_iter->data); |
| 1420 | *current = g_slist_remove_link(*current, remove_iter); |
| 1421 | } else { // not remove |
| 1422 | iter = g_slist_next(iter); |
| 1423 | } |
| 1424 | } |
| 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | |
| 1429 | /** |
| 1430 | * Unregister the background computation hooks for a specific module. |
| 1431 | * |
| 1432 | * It also removes all the requests than can be currently processed by the |
| 1433 | * background computation algorithm for all the traces (list_in and list_out). |
| 1434 | * |
| 1435 | * @param module_name A GQuark : the name of the module which computes the |
| 1436 | * information. |
| 1437 | */ |
| 1438 | |
| 1439 | void lttvwindowtraces_unregister_computation_hooks |
| 1440 | (LttvAttributeName module_name) |
| 1441 | { |
| 1442 | LttvAttribute *g_attribute = lttv_global_attributes(); |
| 1443 | LttvAttribute *attribute; |
| 1444 | LttvAttributeValue value; |
| 1445 | |
| 1446 | g_assert(attribute = |
| 1447 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 1448 | LTTV_COMPUTATION))); |
| 1449 | g_assert(attribute = |
| 1450 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
| 1451 | module_name))); |
| 1452 | |
| 1453 | |
| 1454 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1455 | LTTV_BEFORE_CHUNK_TRACESET, |
| 1456 | LTTV_POINTER, |
| 1457 | &value)); |
| 1458 | LttvHooks *before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
| 1459 | if(before_chunk_traceset != NULL) |
| 1460 | lttv_hooks_destroy(before_chunk_traceset); |
| 1461 | |
| 1462 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1463 | LTTV_BEFORE_CHUNK_TRACE, |
| 1464 | LTTV_POINTER, |
| 1465 | &value)); |
| 1466 | LttvHooks *before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
| 1467 | if(before_chunk_trace != NULL) |
| 1468 | lttv_hooks_destroy(before_chunk_trace); |
| 1469 | |
| 1470 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1471 | LTTV_BEFORE_CHUNK_TRACEFILE, |
| 1472 | LTTV_POINTER, |
| 1473 | &value)); |
| 1474 | LttvHooks *before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
| 1475 | if(before_chunk_tracefile != NULL) |
| 1476 | lttv_hooks_destroy(before_chunk_tracefile); |
| 1477 | |
| 1478 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1479 | LTTV_AFTER_CHUNK_TRACESET, |
| 1480 | LTTV_POINTER, |
| 1481 | &value)); |
| 1482 | LttvHooks *after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
| 1483 | if(after_chunk_traceset != NULL) |
| 1484 | lttv_hooks_destroy(after_chunk_traceset); |
| 1485 | |
| 1486 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1487 | LTTV_AFTER_CHUNK_TRACE, |
| 1488 | LTTV_POINTER, |
| 1489 | &value)); |
| 1490 | LttvHooks *after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
| 1491 | if(after_chunk_trace != NULL) |
| 1492 | lttv_hooks_destroy(after_chunk_trace); |
| 1493 | |
| 1494 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1495 | LTTV_AFTER_CHUNK_TRACEFILE, |
| 1496 | LTTV_POINTER, |
| 1497 | &value)); |
| 1498 | LttvHooks *after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
| 1499 | if(after_chunk_tracefile != NULL) |
| 1500 | lttv_hooks_destroy(after_chunk_tracefile); |
| 1501 | |
| 1502 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1503 | LTTV_BEFORE_REQUEST, |
| 1504 | LTTV_POINTER, |
| 1505 | &value)); |
| 1506 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
| 1507 | if(before_request != NULL) |
| 1508 | lttv_hooks_destroy(before_request); |
| 1509 | |
| 1510 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1511 | LTTV_AFTER_REQUEST, |
| 1512 | LTTV_POINTER, |
| 1513 | &value)); |
| 1514 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
| 1515 | if(after_request != NULL) |
| 1516 | lttv_hooks_destroy(after_request); |
| 1517 | |
| 1518 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1519 | LTTV_EVENT_HOOK, |
| 1520 | LTTV_POINTER, |
| 1521 | &value)); |
| 1522 | LttvHooks *event_hook = (LttvHooks*)*(value.v_pointer); |
| 1523 | if(event_hook != NULL) |
| 1524 | lttv_hooks_destroy(event_hook); |
| 1525 | |
| 1526 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1527 | LTTV_EVENT_HOOK_BY_ID, |
| 1528 | LTTV_POINTER, |
| 1529 | &value)); |
| 1530 | LttvHooksById *event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
| 1531 | if(event_hook_by_id != NULL) |
| 1532 | lttv_hooks_by_id_destroy(event_hook_by_id); |
| 1533 | |
| 1534 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1535 | LTTV_HOOK_ADDER, |
| 1536 | LTTV_POINTER, |
| 1537 | &value)); |
| 1538 | LttvHooks *hook_adder = (LttvHooks*)*(value.v_pointer); |
| 1539 | if(hook_adder != NULL) |
| 1540 | lttv_hooks_destroy(hook_adder); |
| 1541 | |
| 1542 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
| 1543 | LTTV_HOOK_REMOVER, |
| 1544 | LTTV_POINTER, |
| 1545 | &value)); |
| 1546 | LttvHooks *hook_remover = (LttvHooks*)*(value.v_pointer); |
| 1547 | if(hook_remover != NULL) |
| 1548 | lttv_hooks_destroy(hook_remover); |
| 1549 | |
| 1550 | |
| 1551 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1552 | LTTV_EVENT_HOOK_BY_ID); |
| 1553 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1554 | LTTV_EVENT_HOOK); |
| 1555 | |
| 1556 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1557 | LTTV_AFTER_REQUEST); |
| 1558 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1559 | LTTV_BEFORE_REQUEST); |
| 1560 | |
| 1561 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1562 | LTTV_AFTER_CHUNK_TRACEFILE); |
| 1563 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1564 | LTTV_AFTER_CHUNK_TRACE); |
| 1565 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1566 | LTTV_AFTER_CHUNK_TRACESET); |
| 1567 | |
| 1568 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1569 | LTTV_BEFORE_CHUNK_TRACEFILE); |
| 1570 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1571 | LTTV_BEFORE_CHUNK_TRACE); |
| 1572 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1573 | LTTV_BEFORE_CHUNK_TRACESET); |
| 1574 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1575 | LTTV_HOOK_ADDER); |
| 1576 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1577 | LTTV_HOOK_REMOVER); |
| 1578 | |
| 1579 | /* finally, remove module name */ |
| 1580 | g_assert(attribute = |
| 1581 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
| 1582 | LTTV_COMPUTATION))); |
| 1583 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1584 | module_name); |
| 1585 | |
| 1586 | } |
| 1587 | |
| 1588 | /** |
| 1589 | * Lock a trace so no other instance can use it. |
| 1590 | * |
| 1591 | * @param trace The trace to lock. |
| 1592 | * @return 0 on success, -1 if cannot get lock. |
| 1593 | */ |
| 1594 | gint lttvwindowtraces_lock(LttvTrace *trace) |
| 1595 | { |
| 1596 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 1597 | LttvAttributeValue value; |
| 1598 | LttvAttributeType type; |
| 1599 | |
| 1600 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 1601 | LTTV_LOCK, |
| 1602 | &value); |
| 1603 | /* Verify the absence of the lock. */ |
| 1604 | if(type != LTTV_NONE) { |
| 1605 | g_critical("Cannot take trace lock"); |
| 1606 | return -1; |
| 1607 | } |
| 1608 | |
| 1609 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
| 1610 | LTTV_LOCK, |
| 1611 | LTTV_INT); |
| 1612 | /* the value is left unset. The only presence of the attribute is necessary. |
| 1613 | */ |
| 1614 | |
| 1615 | return 0; |
| 1616 | } |
| 1617 | |
| 1618 | /** |
| 1619 | * Unlock a trace. |
| 1620 | * |
| 1621 | * @param trace The trace to unlock. |
| 1622 | * @return 0 on success, -1 if cannot unlock (not locked ?). |
| 1623 | */ |
| 1624 | gint lttvwindowtraces_unlock(LttvTrace *trace) |
| 1625 | { |
| 1626 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 1627 | LttvAttributeType type; |
| 1628 | LttvAttributeValue value; |
| 1629 | |
| 1630 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 1631 | LTTV_LOCK, |
| 1632 | &value); |
| 1633 | /* Verify the presence of the lock. */ |
| 1634 | if(type == LTTV_NONE) { |
| 1635 | g_critical("Cannot release trace lock"); |
| 1636 | return -1; |
| 1637 | } |
| 1638 | |
| 1639 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
| 1640 | LTTV_LOCK); |
| 1641 | |
| 1642 | return 0; |
| 1643 | } |
| 1644 | |
| 1645 | /** |
| 1646 | * Verify if a trace is locked. |
| 1647 | * |
| 1648 | * @param trace The trace to verify. |
| 1649 | * @return TRUE if locked, FALSE is unlocked. |
| 1650 | */ |
| 1651 | gint lttvwindowtraces_get_lock_state(LttvTrace *trace) |
| 1652 | { |
| 1653 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
| 1654 | LttvAttributeType type; |
| 1655 | LttvAttributeValue value; |
| 1656 | |
| 1657 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
| 1658 | LTTV_LOCK, |
| 1659 | &value); |
| 1660 | /* The only presence of the attribute is necessary. */ |
| 1661 | if(type == LTTV_NONE) |
| 1662 | return FALSE; |
| 1663 | else |
| 1664 | return TRUE; |
| 1665 | } |
| 1666 | |