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-rw-r--r--sysdeps/l4/pt-spin.c63
1 files changed, 0 insertions, 63 deletions
diff --git a/sysdeps/l4/pt-spin.c b/sysdeps/l4/pt-spin.c
deleted file mode 100644
index b6978b0..0000000
--- a/sysdeps/l4/pt-spin.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Spin locks. L4 version.
- Copyright (C) 2000, 2004 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <l4.h>
-
-#include <pthread.h>
-#include <sched.h>
-
-/* The default for single processor machines; don't spin, it's
- pointless. */
-#ifndef __PTHREAD_SPIN_COUNT
-# define __PTHREAD_SPIN_COUNT 1
-#endif
-
-/* The number of times to spin while trying to lock a spin lock object
- before yielding the processor. */
-int __pthread_spin_count = __PTHREAD_SPIN_COUNT;
-
-
-/* Lock the spin lock object LOCK. If the lock is held by another
- thread spin until it becomes available. */
-int
-_pthread_spin_lock (__pthread_spinlock_t *lock)
-{
- l4_time_t timeout;
- int i;
-
- /* Start with a small timeout of 2 microseconds, then back off
- exponentially. */
- timeout = l4_time_period (2);
-
- while (1)
- {
- for (i = 0; i < __pthread_spin_count; i++)
- {
- if (__pthread_spin_trylock (lock) == 0)
- return 0;
- }
- l4_sleep (timeout);
-
- timeout = l4_time_mul2 (timeout);
- if (timeout == L4_NEVER)
- timeout = L4_TIME_PERIOD_MAX;
- }
-}
-
-weak_alias (_pthread_spin_lock, pthread_spin_lock);