static GSList *interrupt_data_list = NULL ;
+#define TRACE_NUMBER 0
+
typedef struct _InterruptEventData {
/*Graphical Widgets */
LttvHooks * hooks_trace_after;
LttvHooks * hooks_trace_before;
TimeWindow time_window;
-
+ LttvHooksById * event_by_id_hooks;
GArray *interrupt_counters;
GArray *active_irq_entry ;
} InterruptEventData ;
+
/* Function prototypes */
static gboolean interrupt_update_time_window(void * hook_data, void * call_data);
-GtkWidget *interrupts(Tab *tab);
-// Plug-in's constructor
-InterruptEventData *system_info(Tab *tab);
-// Plug-in's destructor
+static GtkWidget *interrupts(Tab *tab);
+static InterruptEventData *system_info(Tab *tab);
void interrupt_destructor(InterruptEventData *event_viewer_data);
-
-static void request_event( InterruptEventData *event_data);
-static guint64 get_event_detail(LttEvent *e, LttField *f);
+static void request_event(InterruptEventData *event_data );
+static guint64 get_interrupt_id(LttEvent *e);
static gboolean trace_header(void *hook_data, void *call_data);
-static gboolean parse_event(void *hook_data, void *call_data);
-static gboolean interrupt_show(void *hook_data, void *call_data);
+static gboolean interrupt_display (void *hook_data, void *call_data);
static void calcul_duration(LttTime time_exit, guint cpu_id, InterruptEventData *event_data);
static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters);
+static gboolean irq_entry_callback(void *hook_data, void *call_data);
+static gboolean irq_exit_callback(void *hook_data, void *call_data);
+
/* Enumeration of the columns */
enum{
CPUID_COLUMN,
DURATION_COLUMN,
N_COLUMNS
};
+
+
+
+/**
+ * init function
+ *
+ *
+ * This is the entry point of the viewer.
+ *
+ */
+static void init() {
+ g_info("interrupts: init()");
+ lttvwindow_register_constructor("interrupts",
+ "/",
+ "Insert Interrupts View",
+ hInterruptsInsert_xpm,
+ "Insert Interrupts View",
+ interrupts);
+
+}
+
/**
- * constructor hook
+ * Constructor hook
*
- * This constructor is given as a parameter to the menuitem and toolbar button
- * registration. It creates the list.
- * @param parent_window A pointer to the parent window.
- * @return The widget created.
*/
-GtkWidget *interrupts(Tab * tab){
+static GtkWidget *interrupts(Tab * tab)
+{
InterruptEventData* event_data = system_info(tab) ;
if(event_data)
return NULL;
}
+/**
+ * This function initializes the Event Viewer functionnality through the
+ * GTK API.
+ */
InterruptEventData *system_info(Tab *tab)
{
LttTime end;
GtkTreeViewColumn *column;
GtkCellRenderer *renderer;
InterruptEventData* event_viewer_data = g_new(InterruptEventData,1) ;
- g_info("system_info \n");
+
event_viewer_data->tab = tab;
+
+ /*Get the current time frame from the main window */
event_viewer_data->time_window = lttvwindow_get_time_window(tab);
event_viewer_data->interrupt_counters = g_array_new(FALSE, FALSE, sizeof(Irq));
event_viewer_data->active_irq_entry = g_array_new(FALSE, FALSE, sizeof(irq_entry));
-
+ /*Create tha main window for the viewer */
event_viewer_data->ScrollWindow = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_show (event_viewer_data->ScrollWindow);
gtk_scrolled_window_set_policy(
gtk_widget_show(event_viewer_data->TreeView);
interrupt_data_list = g_slist_append(interrupt_data_list, event_viewer_data);
-
+ /* Registration for time notification */
lttvwindow_register_time_window_notify(tab,
interrupt_update_time_window,
event_viewer_data);
- request_event(event_viewer_data);
+
+
+ request_event(event_viewer_data );
return event_viewer_data;
}
-
-static void request_event( InterruptEventData *event_data){
-
- event_data->hooks_trace_before = lttv_hooks_new();
- lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT);
+/**
+ *
+ * For each trace in the traceset, this function:
+ * - registers a callback function to each hook
+ * - calls lttv_trace_find_hook() registers a hook function to event_by_id_hooks
+ * - calls lttvwindow_events_request() to request data in a specific
+ * time interval to the main window
+ *
+ */
+static void request_event(InterruptEventData *event_data )
+{
+ guint i, k, l, nb_trace;
+
+ LttvTraceHook *hook;
+
+ guint ret;
+
+ LttvTraceState *ts;
+
+ GArray *hooks;
+
+ EventsRequest *events_request;
+
+ LttvTraceHookByFacility *thf;
+
+ LttvTracesetContext *tsc = lttvwindow_get_traceset_context(event_data->tab);
- event_data->event_hooks = lttv_hooks_new();
- lttv_hooks_add(event_data->event_hooks, parse_event, event_data, LTTV_PRIO_DEFAULT);
+
+ /* Get the traceset */
+ LttvTraceset *traceset = tsc->ts;
- event_data->hooks_trace_after = lttv_hooks_new();
- lttv_hooks_add(event_data->hooks_trace_after, interrupt_show, event_data, LTTV_PRIO_DEFAULT);
+ nb_trace = lttv_traceset_number(traceset);
+
+ /* There are many traces in a traceset. Iteration for each trace. */
+ for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++)
+ {
+ events_request = g_new(EventsRequest, 1);
+
+ hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
+
+ hooks = g_array_set_size(hooks, 2);
- EventsRequest *events_request = g_new(EventsRequest, 1);
- events_request->owner = event_data;
- events_request->viewer_data = event_data;
- events_request->servicing = FALSE;
- events_request->start_time = event_data->time_window.start_time;
- events_request->start_position = NULL;
- events_request->stop_flag = FALSE;
- events_request->end_time = event_data->time_window.end_time;
- events_request->num_events = G_MAXUINT;
- events_request->end_position = NULL;
- events_request->trace = 0;
- events_request->hooks = NULL;
- events_request->before_chunk_traceset = NULL;
- events_request->before_chunk_trace = event_data->hooks_trace_before;
- events_request->before_chunk_tracefile= NULL;
- events_request->event = event_data->event_hooks;
- events_request->event_by_id = NULL;
- events_request->after_chunk_tracefile = NULL;
- events_request->after_chunk_trace = NULL;
- events_request->after_chunk_traceset = NULL;
- events_request->before_request = NULL;
- events_request->after_request = event_data->hooks_trace_after;
+ event_data->hooks_trace_before = lttv_hooks_new();
+
+ /* Registers a hook function */
+ lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT);
+
+ event_data->hooks_trace_after = lttv_hooks_new();
+ /* Registers a hook function */
+ lttv_hooks_add(event_data->hooks_trace_after, interrupt_display, event_data, LTTV_PRIO_DEFAULT);
+ /* Get a trace state */
+ ts = (LttvTraceState *)tsc->traces[i];
+ /* Create event_by_Id hooks */
+ event_data->event_by_id_hooks = lttv_hooks_by_id_new();
- lttvwindow_events_request(event_data->tab, events_request);
+ /*Register event_by_id_hooks with a callback function*/
+ ret = lttv_trace_find_hook(ts->parent.t,
+ LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY,
+ LTT_FIELD_IRQ_ID, 0, 0,
+ irq_entry_callback,
+ events_request,
+ &g_array_index(hooks, LttvTraceHook, 0));
+
+ ret = lttv_trace_find_hook(ts->parent.t,
+ LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT,
+ LTT_FIELD_IRQ_ID, 0, 0,
+ irq_exit_callback,
+ events_request,
+ &g_array_index(hooks, LttvTraceHook, 1));
+
+ g_assert(!ret);
+ /*iterate through the facility list*/
+ for(k = 0 ; k < hooks->len; k++)
+ {
+ hook = &g_array_index(hooks, LttvTraceHook, k);
+ for(l=0; l<hook->fac_list->len; l++)
+ {
+ thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l);
+ lttv_hooks_add(lttv_hooks_by_id_find(event_data->event_by_id_hooks, thf->id),
+ thf->h,
+ event_data,
+ LTTV_PRIO_DEFAULT);
+
+ }
+ }
+ /* Initalize the EventsRequest structure */
+ events_request->owner = event_data;
+ events_request->viewer_data = event_data;
+ events_request->servicing = FALSE;
+ events_request->start_time = event_data->time_window.start_time;
+ events_request->start_position = NULL;
+ events_request->stop_flag = FALSE;
+ events_request->end_time = event_data->time_window.end_time;
+ events_request->num_events = G_MAXUINT;
+ events_request->end_position = NULL;
+ events_request->trace = i;
+
+ events_request->hooks = hooks;
+
+ events_request->before_chunk_traceset = NULL;
+ events_request->before_chunk_trace = event_data->hooks_trace_before;
+ events_request->before_chunk_tracefile= NULL;
+ events_request->event = NULL;
+ events_request->event_by_id = event_data->event_by_id_hooks;
+ events_request->after_chunk_tracefile = NULL;
+ events_request->after_chunk_trace = NULL;
+ events_request->after_chunk_traceset = NULL;
+ events_request->before_request = NULL;
+ events_request->after_request = event_data->hooks_trace_after;
+
+ lttvwindow_events_request(event_data->tab, events_request);
+ }
+
}
-gboolean parse_event(void *hook_data, void *call_data){
-
+/**
+ * This function is called whenever an irq_entry event occurs.
+ *
+ */
+static gboolean irq_entry_callback(void *hook_data, void *call_data)
+{
+
LttTime event_time;
- LttEvent *e;
- LttField *field;
- LttEventType *event_type;
unsigned cpu_id;
irq_entry entry;
- irq_entry *element;
- guint i;
- // g_info("interrupts: parse_event() \n");
- InterruptEventData *event_data = (InterruptEventData *)hook_data;
- GArray* active_irq_entry = event_data->active_irq_entry;
LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
LttvTracefileState *tfs = (LttvTracefileState *)call_data;
- //e = tfc->e;
- e = ltt_tracefile_get_event(tfc->tf);
-
- field = ltt_event_field(e);
+ InterruptEventData *event_data = (InterruptEventData *)hook_data;
+ GArray* active_irq_entry = event_data->active_irq_entry;
+ LttEvent *e = ltt_tracefile_get_event(tfc->tf);
event_time = ltt_event_time(e);
- event_type = ltt_event_eventtype(e);
cpu_id = ltt_event_cpu_id(e);
- GString * detail_event = g_string_new("");
+
if ((ltt_time_compare(event_time,event_data->time_window.start_time) == TRUE) &&
- (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE)){
- if (strcmp( g_quark_to_string(ltt_eventtype_name(event_type)),"irq_entry") == 0) {
- entry.id = get_event_detail(e, field);
- entry.cpu_id = cpu_id;
- entry.event_time = event_time;
- g_array_append_val (active_irq_entry, entry);
-
- }
- if(strcmp( g_quark_to_string(ltt_eventtype_name(event_type)),"irq_exit") == 0) {
- //printf("event_time: %ld.%ld\n",event_time.tv_sec,event_time.tv_nsec);
- calcul_duration( event_time, cpu_id, event_data);
- }
- }
- g_string_free(detail_event, TRUE);
- return FALSE;
+ (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE))
+ {
+ entry.id =get_interrupt_id(e);
+ entry.cpu_id = cpu_id;
+ entry.event_time = event_time;
+ g_array_append_val (active_irq_entry, entry);
+ }
+ return FALSE;
}
-
-void interrupt_destructor(InterruptEventData *event_viewer_data)
+/**
+ * This function gets the id of the interrupt. The id is stored in a dynamic structure.
+ * Refer to the print.c file for howto extract data from a dynamic structure.
+ */
+static guint64 get_interrupt_id(LttEvent *e)
{
- /* May already been done by GTK window closing */
- g_info("enter interrupt_destructor \n");
- if(GTK_IS_WIDGET(event_viewer_data->Hbox)){
- gtk_widget_destroy(event_viewer_data->Hbox);
- }
-}
-
-static guint64 get_event_detail(LttEvent *e, LttField *f){
-
- LttType *type;
- LttField *element;
- GQuark name;
- int nb, i;
- guint64 irq_id;
- type = ltt_field_type(f);
- nb = ltt_type_member_number(type);
- for(i = 0 ; i < nb-1 ; i++) {
- element = ltt_field_member(f,i);
- ltt_type_member_type(type, i, &name);
- irq_id = ltt_event_get_long_unsigned(e,element);
+ guint i, num_fields;
+ LttEventType *event_type;
+ LttField *element;
+ LttField *field;
+ guint64 irq_id;
+ event_type = ltt_event_eventtype(e);
+ num_fields = ltt_eventtype_num_fields(event_type);
+ for(i = 0 ; i < num_fields-1 ; i++)
+ {
+ field = ltt_eventtype_field(event_type, i);
+ irq_id = ltt_event_get_long_unsigned(e,field);
}
return irq_id;
-}
-
-
-
-gboolean trace_header(void *hook_data, void *call_data){
-
- InterruptEventData *event_data = (InterruptEventData *)hook_data;
+}
+/**
+ * This function is called whenever an irq_exit event occurs.
+ *
+ */
+gboolean irq_exit_callback(void *hook_data, void *call_data)
+{
+ LttTime event_time;
+ unsigned cpu_id;
LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
- LttEvent *e;
- LttTime event_time;
- return FALSE;
+ LttvTracefileState *tfs = (LttvTracefileState *)call_data;
+ InterruptEventData *event_data = (InterruptEventData *)hook_data;
+ LttEvent *e = ltt_tracefile_get_event(tfc->tf);
+ LttEventType *type = ltt_event_eventtype(e);
+ event_time = ltt_event_time(e);
+ cpu_id = ltt_event_cpu_id(e);
+ if ((ltt_time_compare(event_time,event_data->time_window.start_time) == TRUE) &&
+ (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE))
+ {
+ calcul_duration( event_time, cpu_id, event_data);
+
+ }
+ return FALSE;
}
-static gboolean interrupt_show(void *hook_data, void *call_data){
-
- gint i;
- Irq element;
- LttTime average_duration;
- GtkTreeIter iter;
- guint64 real_data;
- InterruptEventData *event_data = (InterruptEventData *)hook_data;
- GArray *interrupt_counters = event_data->interrupt_counters;
- g_info("interrupts: interrupt_show() \n");
- gtk_list_store_clear(event_data->ListStore);
- for(i = 0; i < interrupt_counters->len; i++){
- element = g_array_index(interrupt_counters,Irq,i);
- real_data = element.total_duration.tv_sec;
- real_data *= NANOSECONDS_PER_SECOND;
- real_data += element.total_duration.tv_nsec;
- //printf("total_duration:%ld\n", element.total_duration.tv_nsec);
- gtk_list_store_append (event_data->ListStore, &iter);
- gtk_list_store_set (event_data->ListStore, &iter,
- CPUID_COLUMN, element.cpu_id,
- IRQ_ID_COLUMN, element.id,
- FREQUENCY_COLUMN, element.frequency,
- DURATION_COLUMN, real_data,
- -1);
- }
+/**
+ * This function calculates the duration of an interrupt.
+ *
+ */
+static void calcul_duration(LttTime time_exit, guint cpu_id,InterruptEventData *event_data){
- if(event_data->interrupt_counters->len)
- g_array_remove_range (event_data->interrupt_counters,0,event_data->interrupt_counters->len);
-
- if(event_data->active_irq_entry->len)
- g_array_remove_range (event_data->active_irq_entry,0,event_data->active_irq_entry->len);
- return FALSE;
+ gint i, irq_id;
+ irq_entry *element;
+ LttTime duration;
+ GArray *interrupt_counters = event_data->interrupt_counters;
+ GArray *active_irq_entry = event_data->active_irq_entry;
+ for(i = 0; i < active_irq_entry->len; i++){
+ element = &g_array_index(active_irq_entry,irq_entry,i);
+ if(element->cpu_id == cpu_id){
+ sum_interrupt_data(element,time_exit, interrupt_counters);
+ g_array_remove_index(active_irq_entry, i);
+ break;
+ }
+ }
}
-
+/**
+ * This function calculates the total duration of an interrupt.
+ *
+ */
static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters){
Irq irq;
Irq *element;
gboolean notFound = FALSE;
memset ((void*)&irq, 0,sizeof(Irq));
- //printf("time_exit: %ld.%ld\n",time_exit.tv_sec,time_exit.tv_nsec);
+
if(interrupt_counters->len == NO_ITEMS){
irq.cpu_id = e->cpu_id;
irq.id = e->id;
}
}
}
-
-static void calcul_duration(LttTime time_exit, guint cpu_id,InterruptEventData *event_data){
+/**
+ * This function displays the result on the viewer
+ *
+ */
+static gboolean interrupt_display(void *hook_data, void *call_data){
- gint i, irq_id;
- irq_entry *element;
- LttTime duration;
- GArray *interrupt_counters = event_data->interrupt_counters;
- GArray *active_irq_entry = event_data->active_irq_entry;
- for(i = 0; i < active_irq_entry->len; i++){
- element = &g_array_index(active_irq_entry,irq_entry,i);
- if(element->cpu_id == cpu_id){
- sum_interrupt_data(element,time_exit, interrupt_counters);
- g_array_remove_index(active_irq_entry, i);
- // printf("array length:%d\n",active_irq_entry->len);
- break;
- }
- }
+ gint i;
+ Irq element;
+ LttTime average_duration;
+ GtkTreeIter iter;
+ guint64 real_data;
+ InterruptEventData *event_data = (InterruptEventData *)hook_data;
+ GArray *interrupt_counters = event_data->interrupt_counters;
+ gtk_list_store_clear(event_data->ListStore);
+ for(i = 0; i < interrupt_counters->len; i++){
+ element = g_array_index(interrupt_counters,Irq,i);
+ real_data = element.total_duration.tv_sec;
+ real_data *= NANOSECONDS_PER_SECOND;
+ real_data += element.total_duration.tv_nsec;
+ gtk_list_store_append (event_data->ListStore, &iter);
+ gtk_list_store_set (event_data->ListStore, &iter,
+ CPUID_COLUMN, element.cpu_id,
+ IRQ_ID_COLUMN, element.id,
+ FREQUENCY_COLUMN, element.frequency,
+ DURATION_COLUMN, real_data,
+ -1);
+ }
+ if(event_data->interrupt_counters->len)
+ g_array_remove_range (event_data->interrupt_counters,0,event_data->interrupt_counters->len);
+
+ if(event_data->active_irq_entry->len)
+ g_array_remove_range (event_data->active_irq_entry,0,event_data->active_irq_entry->len);
+ return FALSE;
}
-
-
-gboolean interrupt_update_time_window(void * hook_data, void * call_data){
-
+/*
+ * This function is called by the main window
+ * when the time interval needs to be updated.
+ **/
+gboolean interrupt_update_time_window(void * hook_data, void * call_data)
+{
InterruptEventData *event_data = (InterruptEventData *) hook_data;
const TimeWindowNotifyData *time_window_nofify_data = ((const TimeWindowNotifyData *)call_data);
event_data->time_window = *time_window_nofify_data->new_time_window;
g_info("interrupts: interrupt_update_time_window()\n");
Tab *tab = event_data->tab;
lttvwindow_events_request_remove_all(tab, event_data);
- request_event(event_data);
-
-
- return FALSE;
+ request_event(event_data );
+ return FALSE;
}
-/**
- * plugin's init function
- *
- * This function initializes the Event Viewer functionnality through the
- * gtkTraceSet API.
- */
-static void init() {
- g_info("interrupts: init()");
- lttvwindow_register_constructor("interrupts",
- "/",
- "Insert Interrupts View",
- hInterruptsInsert_xpm,
- "Insert Interrupts View",
- interrupts);
-
+
+gboolean trace_header(void *hook_data, void *call_data)
+{
+
+ InterruptEventData *event_data = (InterruptEventData *)hook_data;
+ LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
+ printf("trace_header\n" );
+ LttEvent *e;
+ LttTime event_time;
+ return FALSE;
}
-void interrupt_destroy_walk(gpointer data, gpointer user_data){
+void interrupt_destroy_walk(gpointer data, gpointer user_data)
+{
g_info("interrupt_destroy_walk");
interrupt_destructor((InterruptEventData*)data);
}
+void interrupt_destructor(InterruptEventData *event_viewer_data)
+{
+ /* May already been done by GTK window closing */
+ g_info("enter interrupt_destructor \n");
+ if(GTK_IS_WIDGET(event_viewer_data->Hbox))
+ {
+ gtk_widget_destroy(event_viewer_data->Hbox);
+ }
+}
+
/**
* plugin's destroy function
*
projects / lttv.git / commitdiff
