+/**
+ * This function parses a particular branch of the tree
+ * @param se pointer to the current LttvSimpleExpression
+ * @param event current LttEvent, NULL if not used
+ * @param tracefile current LttTracefile, NULL if not used
+ * @param trace current LttTrace, NULL if not used
+ * @param state current LttvProcessState, NULL if not used
+ * @param context current LttvTracefileContext, NULL if not used
+ * @return response of filter
+ */
+gboolean
+lttv_filter_tree_parse_branch(
+ const LttvSimpleExpression* se,
+ const LttEvent* event,
+ const LttTracefile* tracefile,
+ const LttTrace* trace,
+ const LttvProcessState* state,
+ const LttvTracefileContext* context) {
+
+ LttvFieldValue v;
+ v = se->value;
+ switch(se->field) {
+ case LTTV_FILTER_TRACE_NAME:
+ if(trace == NULL) return TRUE;
+ else {
+ GQuark quark = ltt_trace_name(trace);
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_TRACEFILE_NAME:
+ if(tracefile == NULL) return TRUE;
+ else {
+ GQuark quark = ltt_tracefile_name(tracefile);
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_STATE_PID:
+ if(state == NULL) return TRUE;
+ else return se->op((gpointer)&state->pid,v);
+ break;
+ case LTTV_FILTER_STATE_PPID:
+ if(state == NULL) return TRUE;
+ else return se->op((gpointer)&state->ppid,v);
+ break;
+ case LTTV_FILTER_STATE_CT:
+ if(state == NULL) return TRUE;
+ else {
+ return se->op((gpointer)&state->creation_time,v);
+ }
+ break;
+ case LTTV_FILTER_STATE_IT:
+ if(state == NULL) return TRUE;
+ else {
+ return se->op((gpointer)&state->insertion_time,v);
+ }
+ break;
+ case LTTV_FILTER_STATE_P_NAME:
+ if(state == NULL) return TRUE;
+ else {
+ GQuark quark = state->name;
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_STATE_T_BRAND:
+ if(state == NULL) return TRUE;
+ else {
+ GQuark quark = state->brand;
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_STATE_EX_MODE:
+ if(state == NULL) return TRUE;
+ else return se->op((gpointer)&state->state->t,v);
+ break;
+ case LTTV_FILTER_STATE_EX_SUBMODE:
+ if(state == NULL) return TRUE;
+ else return se->op((gpointer)&state->state->n,v);
+ break;
+ case LTTV_FILTER_STATE_P_STATUS:
+ if(state == NULL) return TRUE;
+ else return se->op((gpointer)&state->state->s,v);
+ break;
+ case LTTV_FILTER_STATE_CPU:
+ if(state == NULL) return TRUE;
+ else {
+ return se->op((gpointer)&state->cpu,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_NAME:
+ if(event == NULL) return TRUE;
+ else {
+ LttEventType* et;
+ et = ltt_event_eventtype(event);
+ GQuark quark = ltt_eventtype_name(et);
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_FACILITY:
+ if(event == NULL) return TRUE;
+ else {
+ LttFacility* fac;
+ fac = ltt_event_facility(event);
+ GQuark quark = ltt_facility_name(fac);
+ return se->op((gpointer)&quark,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_CATEGORY:
+ /*
+ * TODO: Not yet implemented
+ */
+ return TRUE;
+ break;
+ case LTTV_FILTER_EVENT_TIME:
+ if(event == NULL) return TRUE;
+ else {
+ LttTime time = ltt_event_time(event);
+ return se->op((gpointer)&time,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_TSC:
+ if(event == NULL) return TRUE;
+ else {
+ LttCycleCount count = ltt_event_cycle_count(event);
+ return se->op((gpointer)&count,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_TARGET_PID:
+ if(context == NULL) return TRUE;
+ else {
+ guint target_pid =
+ lttv_state_get_target_pid((LttvTracefileState*)context);
+ return se->op((gpointer)&target_pid,v);
+ }
+ break;
+ case LTTV_FILTER_EVENT_FIELD:
+ /*
+ * TODO: Use the offset to
+ * find the dynamic field
+ * in the event struct
+ */
+ return TRUE;
+ default:
+ /*
+ * This case should never be
+ * parsed, if so, the whole
+ * filtering is cancelled
+ */
+ g_warning("Error while parsing the filter tree");
+ return TRUE;
+ }