rust_get_tasktask_clear_event_rejecttask_wait_eventtask_signal_eventrust_get_taskfn rust_get_task() -> *rust_tasktask_clear_event_rejectfn task_clear_event_reject(task: *rust_task)task_wait_eventfn task_wait_event(this: *rust_task) -> *libc::c_voidtask_signal_eventfn task_signal_event(target: *rust_task, event: *libc::c_void)