update roadmap

[lttv.git] / ltt / branches / poly / lttv / modules / gui / detailedevents / events.c

diff --git a/ltt/branches/poly/lttv/modules/gui/detailedevents/events.c b/ltt/branches/poly/lttv/modules/gui/detailedevents/events.c
index db39fcbc5ec43084b2fbfd580bdf8313edc3187a..689930cd9669c77731f3eb6ca66ecff3d1f4e429 100644 (file)
--- a/ltt/branches/poly/lttv/modules/gui/detailedevents/events.c
+++ b/ltt/branches/poly/lttv/modules/gui/detailedevents/events.c
@@ -77,6 +77,7 @@
 
 #define abs(a) (((a)<0)?(-a):(a))
 #define max(a,b) ((a)>(b)?(a):(b))
+#define min(a,b) ((a)<(b)?(a):(b))
 
 /** Array containing instanced objects. Used when module is unloaded */
 static GSList *g_event_viewer_data_list = NULL ;
@@ -144,6 +145,8 @@ typedef struct _EventViewerData {
 
   guint32 last_tree_update_time; /* To filter out repeat keys */
 
+  guint num_events;  /* Number of events processed */
+
 } EventViewerData ;
 
 /** hook functions for update time interval, current time ... */
@@ -1269,11 +1272,16 @@ gboolean show_event_detail(void * hook_data, void * call_data)
 }
 #endif //0
 
-
-
-
-
-
+static gboolean events_check_handler(guint count, gboolean *stop_flag)
+{
+  if(count % CHECK_GDK_INTERVAL == 0) {
+    gtk_main_iteration_do(FALSE);
+    if(*stop_flag)
+      return TRUE;
+    else
+      return FALSE;
+  }
+}
 
 static void get_events(double new_value, EventViewerData *event_viewer_data)
 {
@@ -1284,8 +1292,14 @@ static void get_events(double new_value, EventViewerData *event_viewer_data)
   guint i;
   gboolean seek_by_time;
   
+  if(lttvwindow_preempt_count > 0) return;
+
   double value = new_value - event_viewer_data->previous_value;
 
+  /* Set stop button status for foreground processing */
+  event_viewer_data->tab->stop_foreground = FALSE;
+  lttvwindow_events_request_disable();
+  
   /* See where we have to scroll... */
   ScrollDirection direction;
   gint relative_position;
@@ -1384,8 +1398,9 @@ static void get_events(double new_value, EventViewerData *event_viewer_data)
    */
     if(relative_position > 0) {
       guint count;
-      count = lttv_process_traceset_seek_n_forward(tsc, relative_position,
-          event_viewer_data->main_win_filter);
+      count += lttv_process_traceset_seek_n_forward(tsc, relative_position,
+          event_viewer_data->main_win_filter, events_check_handler,
+          &event_viewer_data->tab->stop_foreground);
     } else if(relative_position < 0) {
       guint count;
       
@@ -1397,10 +1412,14 @@ static void get_events(double new_value, EventViewerData *event_viewer_data)
       LttTime time_diff = ltt_time_sub(last_event_time, first_event_time);
       if(ltt_time_compare(time_diff, ltt_time_zero) == 0)
         time_diff = seek_back_default_offset;
-      count = lttv_process_traceset_seek_n_backward(tsc, abs(relative_position),
+
+      count = lttv_process_traceset_seek_n_backward(tsc,
+          abs(relative_position),
           time_diff,
           (seek_time_fct)lttv_state_traceset_seek_time_closest,
-          event_viewer_data->main_win_filter);
+          event_viewer_data->main_win_filter,
+         events_check_handler,
+         &event_viewer_data->tab->stop_foreground);
     } /* else 0 : do nothing : we are already at the beginning position */
 
     lttv_traceset_context_position_destroy(pos);
@@ -1447,11 +1466,14 @@ static void get_events(double new_value, EventViewerData *event_viewer_data)
   /* Mathieu :
    * I make the choice not to use the mainwindow lttvwindow API here : the idle
    * loop might have a too low priority, and we want good update while
-   * scrolling.
+   * scrolling. However, we call the gdk loop to get events periodically so the
+   * processing can be stopped.
    */
   
   lttv_process_traceset_begin(tsc,
       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
+
+  event_viewer_data->num_events = 0;
   
   lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
   
@@ -1478,6 +1500,8 @@ static void get_events(double new_value, EventViewerData *event_viewer_data)
     gdk_x11_get_server_time(
         gtk_widget_get_parent_window(event_viewer_data->tree_v));
 
+  lttvwindow_events_request_enable();
+
   return;
 }
 
@@ -1490,6 +1514,13 @@ int event_hook(void *hook_data, void *call_data)
   LttvTracefileState *tfs = (LttvTracefileState*)call_data;
   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
 
+  if(event_viewer_data->num_events % CHECK_GDK_INTERVAL == 0) {
+    gtk_main_iteration_do(FALSE);
+    if(event_viewer_data->tab->stop_foreground)
+      return TRUE;
+  }
+  event_viewer_data->num_events++;
+  
   LttvFilter *filter = event_viewer_data->main_win_filter;
   if(filter != NULL && filter->head != NULL)
     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,