| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2005 Peter Ho |
| 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 | |
| 20 | |
| 21 | #include <math.h> |
| 22 | #include <glib.h> |
| 23 | #include <gtk/gtk.h> |
| 24 | #include <gdk/gdk.h> |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | #include <ltt/ltt.h> |
| 29 | #include <ltt/event.h> |
| 30 | #include <ltt/type.h> |
| 31 | #include <ltt/trace.h> |
| 32 | #include <ltt/facility.h> |
| 33 | #include <lttv/module.h> |
| 34 | #include <lttv/hook.h> |
| 35 | #include <lttv/tracecontext.h> |
| 36 | #include <lttv/state.h> |
| 37 | #include <lttv/filter.h> |
| 38 | #include <lttvwindow/lttvwindow.h> |
| 39 | #include <ltt/time.h> |
| 40 | |
| 41 | #include "hInterruptsInsert.xpm" |
| 42 | |
| 43 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
| 44 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
| 45 | #define NO_ITEMS 0 |
| 46 | |
| 47 | typedef struct { |
| 48 | guint cpu_id; |
| 49 | guint id; |
| 50 | guint frequency; |
| 51 | LttTime total_duration; |
| 52 | }Irq; |
| 53 | |
| 54 | typedef struct { |
| 55 | guint id; |
| 56 | guint cpu_id; |
| 57 | LttTime event_time; |
| 58 | }irq_entry; |
| 59 | |
| 60 | enum type_t { |
| 61 | IRQ_ENTRY, |
| 62 | IRQ_EXIT |
| 63 | }; |
| 64 | |
| 65 | /** Array containing instanced objects. Used when module is unloaded */ |
| 66 | static GSList *interrupt_data_list = NULL ; |
| 67 | |
| 68 | |
| 69 | #define TRACE_NUMBER 0 |
| 70 | |
| 71 | typedef struct _InterruptEventData { |
| 72 | |
| 73 | /*Graphical Widgets */ |
| 74 | GtkWidget * ScrollWindow; |
| 75 | GtkListStore *ListStore; |
| 76 | GtkWidget *Hbox; |
| 77 | GtkWidget *TreeView; |
| 78 | GtkTreeSelection *SelectionTree; |
| 79 | |
| 80 | Tab * tab; /* tab that contains this plug-in*/ |
| 81 | LttvHooks * event_hooks; |
| 82 | LttvHooks * hooks_trace_after; |
| 83 | LttvHooks * hooks_trace_before; |
| 84 | TimeWindow time_window; |
| 85 | LttvHooksById * event_by_id_hooks; |
| 86 | GArray *interrupt_counters; |
| 87 | GArray *active_irq_entry ; |
| 88 | } InterruptEventData ; |
| 89 | |
| 90 | |
| 91 | /* Function prototypes */ |
| 92 | |
| 93 | static gboolean interrupt_update_time_window(void * hook_data, void * call_data); |
| 94 | static GtkWidget *interrupts(Tab *tab); |
| 95 | static InterruptEventData *system_info(Tab *tab); |
| 96 | void interrupt_destructor(InterruptEventData *event_viewer_data); |
| 97 | static void request_event(InterruptEventData *event_data ); |
| 98 | static guint64 get_interrupt_id(LttEvent *e); |
| 99 | static gboolean trace_header(void *hook_data, void *call_data); |
| 100 | static gboolean interrupt_display (void *hook_data, void *call_data); |
| 101 | static void calcul_duration(LttTime time_exit, guint cpu_id, InterruptEventData *event_data); |
| 102 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters); |
| 103 | static gboolean irq_entry_callback(void *hook_data, void *call_data); |
| 104 | static gboolean irq_exit_callback(void *hook_data, void *call_data); |
| 105 | |
| 106 | /* Enumeration of the columns */ |
| 107 | enum{ |
| 108 | CPUID_COLUMN, |
| 109 | IRQ_ID_COLUMN, |
| 110 | FREQUENCY_COLUMN, |
| 111 | DURATION_COLUMN, |
| 112 | N_COLUMNS |
| 113 | }; |
| 114 | |
| 115 | |
| 116 | |
| 117 | /** |
| 118 | * init function |
| 119 | * |
| 120 | * |
| 121 | * This is the entry point of the viewer. |
| 122 | * |
| 123 | */ |
| 124 | static void init() { |
| 125 | g_info("interrupts: init()"); |
| 126 | lttvwindow_register_constructor("interrupts", |
| 127 | "/", |
| 128 | "Insert Interrupts View", |
| 129 | hInterruptsInsert_xpm, |
| 130 | "Insert Interrupts View", |
| 131 | interrupts); |
| 132 | |
| 133 | } |
| 134 | |
| 135 | |
| 136 | /** |
| 137 | * Constructor hook |
| 138 | * |
| 139 | */ |
| 140 | static GtkWidget *interrupts(Tab * tab) |
| 141 | { |
| 142 | |
| 143 | InterruptEventData* event_data = system_info(tab) ; |
| 144 | if(event_data) |
| 145 | return event_data->Hbox; |
| 146 | else |
| 147 | return NULL; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * This function initializes the Event Viewer functionnality through the |
| 152 | * GTK API. |
| 153 | */ |
| 154 | InterruptEventData *system_info(Tab *tab) |
| 155 | { |
| 156 | LttTime end; |
| 157 | GtkTreeViewColumn *column; |
| 158 | GtkCellRenderer *renderer; |
| 159 | InterruptEventData* event_viewer_data = g_new(InterruptEventData,1) ; |
| 160 | |
| 161 | |
| 162 | event_viewer_data->tab = tab; |
| 163 | |
| 164 | /*Get the current time frame from the main window */ |
| 165 | event_viewer_data->time_window = lttvwindow_get_time_window(tab); |
| 166 | event_viewer_data->interrupt_counters = g_array_new(FALSE, FALSE, sizeof(Irq)); |
| 167 | event_viewer_data->active_irq_entry = g_array_new(FALSE, FALSE, sizeof(irq_entry)); |
| 168 | /*Create tha main window for the viewer */ |
| 169 | event_viewer_data->ScrollWindow = gtk_scrolled_window_new (NULL, NULL); |
| 170 | gtk_widget_show (event_viewer_data->ScrollWindow); |
| 171 | gtk_scrolled_window_set_policy( |
| 172 | GTK_SCROLLED_WINDOW(event_viewer_data->ScrollWindow), |
| 173 | GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC/*GTK_POLICY_NEVER*/); |
| 174 | |
| 175 | /* Create a model for storing the data list */ |
| 176 | event_viewer_data->ListStore = gtk_list_store_new ( |
| 177 | N_COLUMNS, /* Total number of columns */ |
| 178 | G_TYPE_INT, /* CPUID */ |
| 179 | G_TYPE_INT, /* IRQ_ID */ |
| 180 | G_TYPE_INT, /* Frequency */ |
| 181 | G_TYPE_UINT64 /* Duration */ |
| 182 | ); |
| 183 | |
| 184 | event_viewer_data->TreeView = gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->ListStore)); |
| 185 | |
| 186 | g_object_unref (G_OBJECT (event_viewer_data->ListStore)); |
| 187 | |
| 188 | renderer = gtk_cell_renderer_text_new (); |
| 189 | column = gtk_tree_view_column_new_with_attributes ("CPUID", |
| 190 | renderer, |
| 191 | "text", CPUID_COLUMN, |
| 192 | NULL); |
| 193 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 194 | gtk_tree_view_column_set_fixed_width (column, 45); |
| 195 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 196 | |
| 197 | |
| 198 | renderer = gtk_cell_renderer_text_new (); |
| 199 | column = gtk_tree_view_column_new_with_attributes ("IrqId", |
| 200 | renderer, |
| 201 | "text", IRQ_ID_COLUMN, |
| 202 | NULL); |
| 203 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 204 | gtk_tree_view_column_set_fixed_width (column, 220); |
| 205 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 206 | |
| 207 | renderer = gtk_cell_renderer_text_new (); |
| 208 | column = gtk_tree_view_column_new_with_attributes ("Frequency", |
| 209 | renderer, |
| 210 | "text", FREQUENCY_COLUMN, |
| 211 | NULL); |
| 212 | gtk_tree_view_column_set_alignment (column, 1.0); |
| 213 | gtk_tree_view_column_set_fixed_width (column, 220); |
| 214 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 215 | |
| 216 | renderer = gtk_cell_renderer_text_new (); |
| 217 | column = gtk_tree_view_column_new_with_attributes ("Duration (nsec)", |
| 218 | renderer, |
| 219 | "text", DURATION_COLUMN, |
| 220 | NULL); |
| 221 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 222 | gtk_tree_view_column_set_fixed_width (column, 145); |
| 223 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 224 | |
| 225 | event_viewer_data->SelectionTree = gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->TreeView)); |
| 226 | gtk_tree_selection_set_mode (event_viewer_data->SelectionTree, GTK_SELECTION_SINGLE); |
| 227 | |
| 228 | gtk_container_add (GTK_CONTAINER (event_viewer_data->ScrollWindow), event_viewer_data->TreeView); |
| 229 | |
| 230 | event_viewer_data->Hbox = gtk_hbox_new(0, 0); |
| 231 | gtk_box_pack_start(GTK_BOX(event_viewer_data->Hbox), event_viewer_data->ScrollWindow, TRUE, TRUE, 0); |
| 232 | |
| 233 | gtk_widget_show(event_viewer_data->Hbox); |
| 234 | gtk_widget_show(event_viewer_data->TreeView); |
| 235 | |
| 236 | interrupt_data_list = g_slist_append(interrupt_data_list, event_viewer_data); |
| 237 | /* Registration for time notification */ |
| 238 | lttvwindow_register_time_window_notify(tab, |
| 239 | interrupt_update_time_window, |
| 240 | event_viewer_data); |
| 241 | |
| 242 | |
| 243 | request_event(event_viewer_data ); |
| 244 | return event_viewer_data; |
| 245 | } |
| 246 | |
| 247 | /** |
| 248 | * |
| 249 | * For each trace in the traceset, this function: |
| 250 | * - registers a callback function to each hook |
| 251 | * - calls lttv_trace_find_hook() registers a hook function to event_by_id_hooks |
| 252 | * - calls lttvwindow_events_request() to request data in a specific |
| 253 | * time interval to the main window |
| 254 | * |
| 255 | */ |
| 256 | static void request_event(InterruptEventData *event_data ) |
| 257 | { |
| 258 | guint i, k, l, nb_trace; |
| 259 | |
| 260 | LttvTraceHook *hook; |
| 261 | |
| 262 | guint ret; |
| 263 | |
| 264 | LttvTraceState *ts; |
| 265 | |
| 266 | GArray *hooks; |
| 267 | |
| 268 | EventsRequest *events_request; |
| 269 | |
| 270 | LttvTraceHookByFacility *thf; |
| 271 | |
| 272 | LttvTracesetContext *tsc = lttvwindow_get_traceset_context(event_data->tab); |
| 273 | |
| 274 | |
| 275 | /* Get the traceset */ |
| 276 | LttvTraceset *traceset = tsc->ts; |
| 277 | |
| 278 | nb_trace = lttv_traceset_number(traceset); |
| 279 | |
| 280 | /* There are many traces in a traceset. Iteration for each trace. */ |
| 281 | for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++) |
| 282 | { |
| 283 | events_request = g_new(EventsRequest, 1); |
| 284 | |
| 285 | hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); |
| 286 | |
| 287 | hooks = g_array_set_size(hooks, 2); |
| 288 | |
| 289 | event_data->hooks_trace_before = lttv_hooks_new(); |
| 290 | |
| 291 | /* Registers a hook function */ |
| 292 | lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT); |
| 293 | |
| 294 | event_data->hooks_trace_after = lttv_hooks_new(); |
| 295 | /* Registers a hook function */ |
| 296 | lttv_hooks_add(event_data->hooks_trace_after, interrupt_display, event_data, LTTV_PRIO_DEFAULT); |
| 297 | /* Get a trace state */ |
| 298 | ts = (LttvTraceState *)tsc->traces[i]; |
| 299 | /* Create event_by_Id hooks */ |
| 300 | event_data->event_by_id_hooks = lttv_hooks_by_id_new(); |
| 301 | |
| 302 | /*Register event_by_id_hooks with a callback function*/ |
| 303 | ret = lttv_trace_find_hook(ts->parent.t, |
| 304 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 305 | LTT_FIELD_IRQ_ID, 0, 0, |
| 306 | irq_entry_callback, |
| 307 | events_request, |
| 308 | &g_array_index(hooks, LttvTraceHook, 0)); |
| 309 | |
| 310 | ret = lttv_trace_find_hook(ts->parent.t, |
| 311 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
| 312 | LTT_FIELD_IRQ_ID, 0, 0, |
| 313 | irq_exit_callback, |
| 314 | events_request, |
| 315 | &g_array_index(hooks, LttvTraceHook, 1)); |
| 316 | |
| 317 | g_assert(!ret); |
| 318 | /*iterate through the facility list*/ |
| 319 | for(k = 0 ; k < hooks->len; k++) |
| 320 | { |
| 321 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 322 | for(l=0; l<hook->fac_list->len; l++) |
| 323 | { |
| 324 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 325 | lttv_hooks_add(lttv_hooks_by_id_find(event_data->event_by_id_hooks, thf->id), |
| 326 | thf->h, |
| 327 | event_data, |
| 328 | LTTV_PRIO_DEFAULT); |
| 329 | |
| 330 | } |
| 331 | } |
| 332 | /* Initalize the EventsRequest structure */ |
| 333 | events_request->owner = event_data; |
| 334 | events_request->viewer_data = event_data; |
| 335 | events_request->servicing = FALSE; |
| 336 | events_request->start_time = event_data->time_window.start_time; |
| 337 | events_request->start_position = NULL; |
| 338 | events_request->stop_flag = FALSE; |
| 339 | events_request->end_time = event_data->time_window.end_time; |
| 340 | events_request->num_events = G_MAXUINT; |
| 341 | events_request->end_position = NULL; |
| 342 | events_request->trace = i; |
| 343 | |
| 344 | events_request->hooks = hooks; |
| 345 | |
| 346 | events_request->before_chunk_traceset = NULL; |
| 347 | events_request->before_chunk_trace = event_data->hooks_trace_before; |
| 348 | events_request->before_chunk_tracefile= NULL; |
| 349 | events_request->event = NULL; |
| 350 | events_request->event_by_id = event_data->event_by_id_hooks; |
| 351 | events_request->after_chunk_tracefile = NULL; |
| 352 | events_request->after_chunk_trace = NULL; |
| 353 | events_request->after_chunk_traceset = NULL; |
| 354 | events_request->before_request = NULL; |
| 355 | events_request->after_request = event_data->hooks_trace_after; |
| 356 | |
| 357 | lttvwindow_events_request(event_data->tab, events_request); |
| 358 | } |
| 359 | |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * This function is called whenever an irq_entry event occurs. |
| 364 | * |
| 365 | */ |
| 366 | static gboolean irq_entry_callback(void *hook_data, void *call_data) |
| 367 | { |
| 368 | |
| 369 | LttTime event_time; |
| 370 | unsigned cpu_id; |
| 371 | irq_entry entry; |
| 372 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 373 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
| 374 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 375 | GArray* active_irq_entry = event_data->active_irq_entry; |
| 376 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
| 377 | event_time = ltt_event_time(e); |
| 378 | cpu_id = ltt_event_cpu_id(e); |
| 379 | |
| 380 | |
| 381 | entry.id =get_interrupt_id(e); |
| 382 | entry.cpu_id = cpu_id; |
| 383 | entry.event_time = event_time; |
| 384 | g_array_append_val (active_irq_entry, entry); |
| 385 | |
| 386 | return FALSE; |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * This function gets the id of the interrupt. The id is stored in a dynamic structure. |
| 391 | * Refer to the print.c file for howto extract data from a dynamic structure. |
| 392 | */ |
| 393 | static guint64 get_interrupt_id(LttEvent *e) |
| 394 | { |
| 395 | guint i, num_fields; |
| 396 | LttEventType *event_type; |
| 397 | LttField *element; |
| 398 | LttField *field; |
| 399 | guint64 irq_id; |
| 400 | event_type = ltt_event_eventtype(e); |
| 401 | num_fields = ltt_eventtype_num_fields(event_type); |
| 402 | for(i = 0 ; i < num_fields-1 ; i++) |
| 403 | { |
| 404 | field = ltt_eventtype_field(event_type, i); |
| 405 | irq_id = ltt_event_get_long_unsigned(e,field); |
| 406 | } |
| 407 | return irq_id; |
| 408 | |
| 409 | } |
| 410 | /** |
| 411 | * This function is called whenever an irq_exit event occurs. |
| 412 | * |
| 413 | */ |
| 414 | gboolean irq_exit_callback(void *hook_data, void *call_data) |
| 415 | { |
| 416 | LttTime event_time; |
| 417 | unsigned cpu_id; |
| 418 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 419 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
| 420 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 421 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
| 422 | LttEventType *type = ltt_event_eventtype(e); |
| 423 | event_time = ltt_event_time(e); |
| 424 | cpu_id = ltt_event_cpu_id(e); |
| 425 | |
| 426 | calcul_duration( event_time, cpu_id, event_data); |
| 427 | return FALSE; |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * This function calculates the duration of an interrupt. |
| 432 | * |
| 433 | */ |
| 434 | static void calcul_duration(LttTime time_exit, guint cpu_id,InterruptEventData *event_data){ |
| 435 | |
| 436 | gint i, irq_id; |
| 437 | irq_entry *element; |
| 438 | LttTime duration; |
| 439 | GArray *interrupt_counters = event_data->interrupt_counters; |
| 440 | GArray *active_irq_entry = event_data->active_irq_entry; |
| 441 | for(i = 0; i < active_irq_entry->len; i++) |
| 442 | { |
| 443 | element = &g_array_index(active_irq_entry,irq_entry,i); |
| 444 | if(element->cpu_id == cpu_id) |
| 445 | { |
| 446 | sum_interrupt_data(element,time_exit, interrupt_counters); |
| 447 | g_array_remove_index(active_irq_entry, i); |
| 448 | break; |
| 449 | } |
| 450 | } |
| 451 | } |
| 452 | /** |
| 453 | * This function calculates the total duration of an interrupt. |
| 454 | * |
| 455 | */ |
| 456 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters){ |
| 457 | Irq irq; |
| 458 | Irq *element; |
| 459 | guint i; |
| 460 | LttTime duration; |
| 461 | gboolean notFound = FALSE; |
| 462 | memset ((void*)&irq, 0,sizeof(Irq)); |
| 463 | |
| 464 | /*first time*/ |
| 465 | if(interrupt_counters->len == NO_ITEMS) |
| 466 | { |
| 467 | irq.cpu_id = e->cpu_id; |
| 468 | irq.id = e->id; |
| 469 | irq.frequency++; |
| 470 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
| 471 | g_array_append_val (interrupt_counters, irq); |
| 472 | } |
| 473 | else |
| 474 | { |
| 475 | for(i = 0; i < interrupt_counters->len; i++) |
| 476 | { |
| 477 | element = &g_array_index(interrupt_counters,Irq,i); |
| 478 | if(element->id == e->id){ |
| 479 | notFound = TRUE; |
| 480 | duration = ltt_time_sub(time_exit, e->event_time); |
| 481 | element->total_duration = ltt_time_add(element->total_duration, duration); |
| 482 | element->frequency++; |
| 483 | } |
| 484 | } |
| 485 | if(!notFound) |
| 486 | { |
| 487 | irq.cpu_id = e->cpu_id; |
| 488 | irq.id = e->id; |
| 489 | irq.frequency++; |
| 490 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
| 491 | g_array_append_val (interrupt_counters, irq); |
| 492 | } |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | /** |
| 497 | * This function displays the result on the viewer |
| 498 | * |
| 499 | */ |
| 500 | static gboolean interrupt_display(void *hook_data, void *call_data){ |
| 501 | |
| 502 | gint i; |
| 503 | Irq element; |
| 504 | LttTime average_duration; |
| 505 | GtkTreeIter iter; |
| 506 | guint64 real_data; |
| 507 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 508 | GArray *interrupt_counters = event_data->interrupt_counters; |
| 509 | gtk_list_store_clear(event_data->ListStore); |
| 510 | for(i = 0; i < interrupt_counters->len; i++) |
| 511 | { |
| 512 | element = g_array_index(interrupt_counters,Irq,i); |
| 513 | real_data = element.total_duration.tv_sec; |
| 514 | real_data *= NANOSECONDS_PER_SECOND; |
| 515 | real_data += element.total_duration.tv_nsec; |
| 516 | gtk_list_store_append (event_data->ListStore, &iter); |
| 517 | gtk_list_store_set (event_data->ListStore, &iter, |
| 518 | CPUID_COLUMN, element.cpu_id, |
| 519 | IRQ_ID_COLUMN, element.id, |
| 520 | FREQUENCY_COLUMN, element.frequency, |
| 521 | DURATION_COLUMN, real_data, |
| 522 | -1); |
| 523 | |
| 524 | } |
| 525 | |
| 526 | if(event_data->interrupt_counters->len) |
| 527 | { |
| 528 | g_array_remove_range (event_data->interrupt_counters,0,event_data->interrupt_counters->len); |
| 529 | } |
| 530 | |
| 531 | if(event_data->active_irq_entry->len) |
| 532 | { |
| 533 | |
| 534 | g_array_remove_range (event_data->active_irq_entry,0,event_data->active_irq_entry->len); |
| 535 | } |
| 536 | return FALSE; |
| 537 | } |
| 538 | /* |
| 539 | * This function is called by the main window |
| 540 | * when the time interval needs to be updated. |
| 541 | **/ |
| 542 | gboolean interrupt_update_time_window(void * hook_data, void * call_data) |
| 543 | { |
| 544 | InterruptEventData *event_data = (InterruptEventData *) hook_data; |
| 545 | const TimeWindowNotifyData *time_window_nofify_data = ((const TimeWindowNotifyData *)call_data); |
| 546 | event_data->time_window = *time_window_nofify_data->new_time_window; |
| 547 | g_info("interrupts: interrupt_update_time_window()\n"); |
| 548 | Tab *tab = event_data->tab; |
| 549 | lttvwindow_events_request_remove_all(tab, event_data); |
| 550 | request_event(event_data ); |
| 551 | return FALSE; |
| 552 | } |
| 553 | |
| 554 | |
| 555 | gboolean trace_header(void *hook_data, void *call_data) |
| 556 | { |
| 557 | |
| 558 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 559 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 560 | LttEvent *e; |
| 561 | LttTime event_time; |
| 562 | return FALSE; |
| 563 | } |
| 564 | |
| 565 | void interrupt_destroy_walk(gpointer data, gpointer user_data) |
| 566 | { |
| 567 | g_info("interrupt_destroy_walk"); |
| 568 | interrupt_destructor((InterruptEventData*)data); |
| 569 | |
| 570 | } |
| 571 | |
| 572 | void interrupt_destructor(InterruptEventData *event_viewer_data) |
| 573 | { |
| 574 | /* May already been done by GTK window closing */ |
| 575 | g_info("enter interrupt_destructor \n"); |
| 576 | if(GTK_IS_WIDGET(event_viewer_data->Hbox)) |
| 577 | { |
| 578 | gtk_widget_destroy(event_viewer_data->Hbox); |
| 579 | } |
| 580 | } |
| 581 | |
| 582 | /** |
| 583 | * plugin's destroy function |
| 584 | * |
| 585 | * This function releases the memory reserved by the module and unregisters |
| 586 | * everything that has been registered in the gtkTraceSet API. |
| 587 | */ |
| 588 | static void destroy() { |
| 589 | g_info("Destroy interrupts"); |
| 590 | g_slist_foreach(interrupt_data_list, interrupt_destroy_walk, NULL ); |
| 591 | g_slist_free(interrupt_data_list); |
| 592 | lttvwindow_unregister_constructor(interrupts); |
| 593 | |
| 594 | } |
| 595 | |
| 596 | LTTV_MODULE("interrupts", "interrupts info view", \ |
| 597 | "Graphical module to display interrupts performance", \ |
| 598 | init, destroy, "lttvwindow") |