Syscall API: sleep/wakeup

• original:

int thrsleep(void *ident, int timeout, void *lock);

int thrwakeup(void *ident, int n);

• problems:

  • pthread sleeps are specified as absolute times, want to adjust if the realtime clock is shifted:

• int thrsleep(void *ident, clockid_t clock_id, const struct timespec *abstime, void *lock);