- this.eventTimer.scheduleAtFixedRate(new TimerTask() {
- @Override
- public void run() {
- synchronized (enabledEventSet) {
- LTTngSessiondCmd2_4.sessiond_enable_handler enableCmd = new
- LTTngSessiondCmd2_4.sessiond_enable_handler();
- /*
- * Modifying events in a Set will raise a
- * ConcurrentModificationException. Thus, we remove an event
- * and add its modified version to modifiedEvents when a
- * modification is necessary.
- */
- Set<LTTngEvent> modifiedEvents = new HashSet<LTTngEvent>();
- Iterator<LTTngEvent> it = enabledEventSet.iterator();
-
- while (it.hasNext()) {
- int ret;
- Logger logger;
- LTTngEvent event = it.next();
-
- /*
- * Check if this Logger name has been enabled already. Note
- * that in the case of "*", it's never added in that hash
- * table thus the enable command does a lookup for each
- * logger name in that hash table for the * case in order
- * to make sure we don't enable twice the same logger
- * because JUL apparently accepts that the *same*
- * LogHandler can be added twice on a Logger object...
- * don't ask...
- */
- logger = enabledLoggers.get(event.name);
- if (logger != null) {
- continue;
- }
-
- /*
- * Set to one means that the enable all event has been seen
- * thus event from that point on must use loglevel for all
- * events. Else the object has its own loglevel.
- */
- if (handler.logLevelUseAll == 1) {
- it.remove();
- event.logLevel.level = handler.logLevelAll;
- event.logLevel.type = handler.logLevelTypeAll;
- modifiedEvents.add(event);
- }
-
- /*
- * The all event is a special case since we have to iterate
- * over every Logger to see which one was not enabled.
- */
- if (event.name.equals("*")) {
- enableCmd.name = event.name;
- enableCmd.lttngLogLevel = event.logLevel.level;
- enableCmd.lttngLogLevelType = event.logLevel.type;
- /*
- * The return value is irrelevant since the * event is
- * always kept in the set.
- */
- enableCmd.execute(handler, enabledLoggers);
- continue;
- }
-
- ret = enableCmd.enableLogger(handler, event, enabledLoggers);
- if (ret == 1) {
- /* Enabled so remove the event from the set. */
- if (!modifiedEvents.remove(event)) {
- /*
- * event can only be present in one of
- * the sets.
- */
- it.remove();
- }
- }
- }
- enabledEventSet.addAll(modifiedEvents);
- }
-
- }
- }, this.timerDelay, this.timerDelay);
-
- this.timerInitialized = true;