1 files changed, 0 insertions, 128 deletions
diff --git a/libthreads/rwlock.h b/libthreads/rwlock.h
deleted file mode 100644
index cbe56d7c..00000000
--- a/libthreads/rwlock.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Simple reader/writer locks.
-
-   Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2, or (at
-   your option) any later version.
-
-   This program 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
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#ifndef _RWLOCK_H
-#define _RWLOCK_H 1
-
-#include <cthreads.h>
-#include <assert-backtrace.h>
-#include <features.h>
-
-#ifdef RWLOCK_DEFINE_EI
-#define RWLOCK_EI
-#else
-#define RWLOCK_EI __extern_inline
-#endif
-
-struct rwlock
-{
-  struct mutex master;
-  struct condition wakeup;
-  int readers;
-  int writers_waiting;
-  int readers_waiting;
-};
-
-extern void rwlock_reader_lock (struct rwlock *lock);
-
-extern void rwlock_writer_lock (struct rwlock *lock);
-
-extern void rwlock_reader_unlock (struct rwlock *lock);
-
-extern void rwlock_writer_unlock (struct rwlock *lock);
-
-extern void rwlock_init (struct rwlock *lock);
-
-#if defined(__USE_EXTERN_INLINES) || defined(RWLOCK_DEFINE_EI)
-
-/* Get a reader lock on reader-writer lock LOCK for disknode DN */
-RWLOCK_EI void
-rwlock_reader_lock (struct rwlock *lock)
-{
-  mutex_lock (&lock->master);
-  if (lock->readers == -1 || lock->writers_waiting)
-    {
-      lock->readers_waiting++;
-      do
-	condition_wait (&lock->wakeup, &lock->master);
-      while (lock->readers == -1 || lock->writers_waiting);
-      lock->readers_waiting--;
-    }
-  lock->readers++;
-  mutex_unlock (&lock->master);
-}
-
-/* Get a writer lock on reader-writer lock LOCK for disknode DN */
-RWLOCK_EI void
-rwlock_writer_lock (struct rwlock *lock)
-{
-  mutex_lock (&lock->master);
-  if (lock->readers)
-    {
-      lock->writers_waiting++;
-      do
-	condition_wait (&lock->wakeup, &lock->master);
-      while (lock->readers);
-      lock->writers_waiting--;
-    }
-  lock->readers = -1;
-  mutex_unlock (&lock->master);
-}
-
-/* Release a reader lock on reader-writer lock LOCK for disknode DN */
-RWLOCK_EI void
-rwlock_reader_unlock (struct rwlock *lock)
-{
-  mutex_lock (&lock->master);
-  assert_backtrace (lock->readers);
-  lock->readers--;
-  if (lock->readers_waiting || lock->writers_waiting)
-    condition_broadcast (&lock->wakeup);
-  mutex_unlock (&lock->master);
-}
-
-/* Release a writer lock on reader-writer lock LOCK for disknode DN */
-RWLOCK_EI void
-rwlock_writer_unlock (struct rwlock *lock)
-{
-  mutex_lock (&lock->master);
-  assert_backtrace (lock->readers == -1);
-  lock->readers = 0;
-  if (lock->readers_waiting || lock->writers_waiting)
-    condition_broadcast (&lock->wakeup);
-  mutex_unlock (&lock->master);
-}
-
-/* Initialize reader-writer lock LOCK */
-RWLOCK_EI void
-rwlock_init (struct rwlock *lock)
-{
-  mutex_init (&lock->master);
-  condition_init (&lock->wakeup);
-  lock->readers = 0;
-  lock->readers_waiting = 0;
-  lock->writers_waiting = 0;
-}
-
-#endif /* Use extern inlines.  */
-
-#define RWLOCK_INITIALIZER \
-  { MUTEX_INITIALIZER, CONDITION_INITIALIZER, 0, 0, 0 }
-
-
-#endif /* rwlock.h */