nsz Git - musl/blob - src/thread/pthread_attr_setinheritsched.c

   1 #include "pthread_impl.h"
   2 #include "syscall.h"
   3
   4 hidden void *__start_sched(void *p)
   5 {
   6         struct start_sched_args *ssa = p;
   7         void *start_arg = ssa->start_arg;
   8         void *(*start_fn)(void *) = ssa->start_fn;
   9         pthread_t self = __pthread_self();
  10
  11         int ret = -__syscall(SYS_sched_setscheduler, self->tid,
  12                 ssa->attr->_a_policy, &ssa->attr->_a_prio);
  13         if (!ret) __restore_sigs(&ssa->mask);
  14         a_store(&ssa->futex, ret);
  15         __wake(&ssa->futex, 1, 1);
  16         if (ret) {
  17                 self->detach_state = DT_DYNAMIC;
  18                 return 0;
  19         }
  20         return start_fn(start_arg);
  21 }
  22
  23 int pthread_attr_setinheritsched(pthread_attr_t *a, int inherit)
  24 {
  25         if (inherit > 1U) return EINVAL;
  26         a->_a_sched = inherit;
  27         return 0;
  28 }