How to determine when a rule or rule_set is executed or evaluated?

Hello,

I want to be able to determine when exactly a rule_set or rule has been executed successfully. I have looked vividly at the entire Rules code and I can't just find what I need. The only implementation that gave me a result is rules_log_evaluation_finished(). Below is my understanding about some pretty clear Rules APIs (I hope I'm correct).

• rules_get_items (returns info about all defined items - rules or rule set)
• rules_gather_items (used for collecting events, rules, actions and conditions from other modules)
• rules_rules_item_info (implementation of hook_rules_item_info)
• rules_get_actions
• rules_get_events
• rules_get_rule_set
• rules_get_rule_sets (i.e all defined events (functions) prefixed with event_)
• rules_get_configured_items (returns configuration for rules or rule set which are stored in the db)
• rules_get_event_sets
• _rules_rule_is_active
• rules_evaluate_rule_set (Evaluates the configured rules for the given rule set and evaluation state.)
• rules_execute_rule (executes an active rule)
• rules_invoke_rule_set
• rules_execute_action(executes actions on a rule)
• rules_get_execution_arguments
• rules_execute_condition
• rules_evaluate_rule_set
• rules_show_log
• rules_log_evaluated_rule (logs the evaluated rule)
• rules_log_rule_is_evaluated (checks if the given rule is currently evaluated)
• rules_get_element_info
• rules_retrieve_element_info (retrieves info about an action or condition)

Again, what I want to be able to achieve is to create a log (either in watchdog or custom table) of all Rules events and rule_sets at exactly the time they are executed or evaluated. I want to do something like this:

I am thinking if it is possible to just get what $element['#info'] is during a particular rule execution - be it #action, #conditions, this will open door for me to do what I want to achieve.

I will appreciate some help please.

Regards