Don't stop event processing on error

[clement-michelet]

Currently, the try/catch is done outside of the loop.
It should done inside the while to avoid to break the loop on error.

WARNING: This will break the dependency to previous event if the previous event fail.

[juchi]

Your warning is actually the key issue to this change, how can the algorithm determine if the event should be skipped or not, or know what events should also be skipped because a "parent" was ? Seems quite complicated.

[clement-michelet]

The true solution should be that an event which depends on a parent event should be only dispatched by this parent event if the execution is a success. There is no magic algorithm for that.

My warning points a problem which is already here because there is already dependency problems.

[pdenis]

As we discussed, a custom error_handler can manage this problem.

error_handler must throw an exception to stop process & release lock