a #guint describing the numbers of #GstClockID registered with the #GstTestClock
a #guint describing how many seconds to wait for waits to be true
a gboolean true if the waits have been registered, false if not. (Could be that it timed out waiting or that more waits than waits was found)
Waits for timeout seconds until waits number of #GstClockID waits is registered with the #GstTestClock. Useful for writing deterministic tests, where you want to make sure that an expected number of waits have been reached.
MT safe.