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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /linuxthreads/barrier.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'linuxthreads/barrier.c')
-rw-r--r--linuxthreads/barrier.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/linuxthreads/barrier.c b/linuxthreads/barrier.c
deleted file mode 100644
index 37d997cfc1..0000000000
--- a/linuxthreads/barrier.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* POSIX barrier implementation for LinuxThreads.
-   Copyright (C) 2000, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000.
-
-   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; 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 <errno.h>
-#include "pthread.h"
-#include "internals.h"
-#include "spinlock.h"
-#include "queue.h"
-#include "restart.h"
-
-int
-pthread_barrier_wait(pthread_barrier_t *barrier)
-{
-  pthread_descr self = thread_self();
-  pthread_descr temp_wake_queue, th;
-  int result = 0;
-
-  __pthread_lock(&barrier->__ba_lock, self);
-
-  /* If the required number of threads have achieved rendezvous... */
-  if (barrier->__ba_present >= barrier->__ba_required - 1)
-    {
-      /* ... then this last caller shall be the serial thread */
-      result = PTHREAD_BARRIER_SERIAL_THREAD;
-      /* Copy and clear wait queue and reset barrier. */
-      temp_wake_queue = barrier->__ba_waiting;
-      barrier->__ba_waiting = NULL;
-      barrier->__ba_present = 0;
-    }
-  else
-    {
-      result = 0;
-      barrier->__ba_present++;
-      enqueue(&barrier->__ba_waiting, self);
-    }
-
-  __pthread_unlock(&barrier->__ba_lock);
-
-  if (result == 0)
-    {
-      /* Non-serial threads have to suspend */
-      suspend(self);
-      /* We don't bother dealing with cancellation because the POSIX
-         spec for barriers doesn't mention that pthread_barrier_wait
-         is a cancellation point. */
-    }
-  else
-    {
-      /* Serial thread wakes up all others. */
-      while ((th = dequeue(&temp_wake_queue)) != NULL)
-	restart(th);
-    }
-
-  return result;
-}
-
-int
-pthread_barrier_init(pthread_barrier_t *barrier,
-				const pthread_barrierattr_t *attr,
-				unsigned int count)
-{
-  if (count == 0)
-     return EINVAL;
-
-  __pthread_init_lock(&barrier->__ba_lock);
-  barrier->__ba_required = count;
-  barrier->__ba_present = 0;
-  barrier->__ba_waiting = NULL;
-  return 0;
-}
-
-int
-pthread_barrier_destroy(pthread_barrier_t *barrier)
-{
-  if (barrier->__ba_waiting != NULL) return EBUSY;
-  return 0;
-}
-
-int
-pthread_barrierattr_init(pthread_barrierattr_t *attr)
-{
-  attr->__pshared = PTHREAD_PROCESS_PRIVATE;
-  return 0;
-}
-
-int
-pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
-{
-  return 0;
-}
-
-int
-__pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr,
-				 int *pshared)
-{
-  *pshared = PTHREAD_PROCESS_PRIVATE;
-  return 0;
-}
-
-int
-pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
-{
-  if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED)
-    return EINVAL;
-
-  /* For now it is not possible to shared a conditional variable.  */
-  if (pshared != PTHREAD_PROCESS_PRIVATE)
-    return ENOSYS;
-
-  return 0;
-}