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As reported by #518 the current main branch experiences a segfault when the user specifies a timeout.
The timeout was caused by a subtle bug where we were exiting from
WaitSet::wait
early when an error code gets returned fromrcl_wait
. The original rationale was that if an error happens then it is not valid to continue processing the wait set, and the user will not want to keep spinning it. However, that overlooked two things:rcl_wait
which get skipped if we exitWaitSet::wait
earlyThis PR tweaks the ordering so that we always do the appropriate cleanup each time
WaitSet::wait
is called, even if an error is encountered. This also adds a test which currently experiences a segmentation fault on main.