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- /* Copyright (C) 1994 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <lock-intern.h>
- #include <cthreads.h>
-
- /* If cthreads is linked in, it will define these variables with values
- that point to its mutex functions. */
- void (*_cthread_mutex_lock_routine) (struct mutex *);
- void (*_cthread_mutex_unlock_routine) (struct mutex *);
-
- void
- __mutex_lock_solid (void *lock)
- {
- if (_cthread_mutex_lock_routine)
- (*_cthread_mutex_lock_routine) (lock);
- else
- __spin_lock_solid (lock);
- }
-
- void
- __mutex_unlock_solid (void *lock)
- {
- if (_cthread_mutex_unlock_routine)
- (*_cthread_mutex_unlock_routine) (lock);
- }
-
- void
- __mutex_init (void *lock)
- {
- /* This happens to be name space-safe because it is a macro.
- It invokes only spin_lock_init, which is a macro for __spin_lock_init;
- and cthread_queue_init, which is a macro for some simple code. */
- mutex_init ((struct mutex *) lock);
- }
-