glibc/sysdeps/mach/htl/bits/spin-lock-inline.h

/* Definitions of user-visible names for spin locks.
   Copyright (C) 1994-2023 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library;  if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _BITS_SPIN_LOCK_INLINE_H
#define _BITS_SPIN_LOCK_INLINE_H	1

#include <features.h>
#include <bits/types/__pthread_spinlock_t.h>
#include <lock-intern.h>   /* This does all the work.  */

__BEGIN_DECLS

#if defined __USE_EXTERN_INLINES || defined _FORCE_INLINES

# ifndef __EBUSY
#  include <errno.h>
#  define __EBUSY EBUSY
# endif

# ifndef __PT_SPIN_INLINE
#  define __PT_SPIN_INLINE __extern_inline
# endif

__PT_SPIN_INLINE int __pthread_spin_destroy (__pthread_spinlock_t *__lock);

__PT_SPIN_INLINE int
__pthread_spin_destroy (__pthread_spinlock_t *__lock)
{
  return 0;
}

__PT_SPIN_INLINE int __pthread_spin_init (__pthread_spinlock_t *__lock,
					  int __pshared);

__PT_SPIN_INLINE int
__pthread_spin_init (__pthread_spinlock_t *__lock, int __pshared)
{
  *__lock = __PTHREAD_SPIN_LOCK_INITIALIZER;
  return 0;
}

__PT_SPIN_INLINE int __pthread_spin_trylock (__pthread_spinlock_t *__lock);

__PT_SPIN_INLINE int
__pthread_spin_trylock (__pthread_spinlock_t *__lock)
{
  return __spin_try_lock ((__spin_lock_t *) __lock) ? 0 : __EBUSY;
}

__PT_SPIN_INLINE int __pthread_spin_lock (__pthread_spinlock_t *__lock);

__PT_SPIN_INLINE int
__pthread_spin_lock (__pthread_spinlock_t *__lock)
{
  __spin_lock_solid ((__spin_lock_t *) __lock);
  return 0;
}

__PT_SPIN_INLINE int __pthread_spin_wait (__pthread_spinlock_t *__lock);

__PT_SPIN_INLINE int
__pthread_spin_wait (__pthread_spinlock_t *__lock)
{
  __spin_lock ((__spin_lock_t *) __lock);
  return 0;
}

__PT_SPIN_INLINE int __pthread_spin_unlock (__pthread_spinlock_t *__lock);

__PT_SPIN_INLINE int
__pthread_spin_unlock (__pthread_spinlock_t *__lock)
{
  __spin_unlock ((__spin_lock_t *) __lock);
  return 0;
}

#endif /* Use extern inlines or force inlines.  */

__END_DECLS

#endif /* bits/types/__pthread_spinlock_t.h */