1: /* Copyright (C) 1994, 1995, 1997 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <spin-lock.h>
   20: #include <mach/mach_traps.h>
   21: 
   22: void
   23: __spin_lock_solid (spin_lock_t *lock)
   24: {
   25:   while (__spin_lock_locked (lock) || ! __spin_try_lock (lock))
   26:     /* Yield to another thread (system call).  */
   27:     __swtch_pri (0);
   28: }
   29: weak_alias (__spin_lock_solid, spin_lock_solid);