Thread reaper

include/thread/reaper.h

struct thread_reaper

Member Type	Member Name
struct thread_queue	queue
struct spinlock	lock
struct condvar	cv
uint64_t	reaped_threads

• void reaper_enqueue(struct thread *t)
• void reaper_thread_main(void *nothing)
• void reaper_init(void)
• uint64_t reaper_get_reaped_thread_count(void)
• void reaper_signal()