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

   1 #include "pthread_impl.h"
   2 #include "syscall.h"
   3
   4 __attribute__((__visibility__("hidden")))
   5 void *__start_sched(void *p)
   6 {
   7         struct start_sched_args *ssa = p;
   8         void *start_arg = ssa->start_arg;
   9         void *(*start_fn)(void *) = ssa->start_fn;
  10         pthread_t self = __pthread_self();
  11
  12         int ret = -__syscall(SYS_sched_setscheduler, self->tid,
  13                 ssa->attr->_a_policy, &ssa->attr->_a_prio);
  14         if (!ret) __restore_sigs(&ssa->mask);
  15         a_store(&ssa->futex, ret);
  16         __wake(&ssa->futex, 1, 1);
  17         if (ret) {
  18                 self->detach_state = DT_DYNAMIC;
  19                 return 0;
  20         }
  21         return start_fn(start_arg);
  22 }
  23
  24 int pthread_attr_setinheritsched(pthread_attr_t *a, int inherit)
  25 {
  26         if (inherit > 1U) return EINVAL;
  27         a->_a_sched = inherit;
  28         return 0;
  29 }