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nptl/pthread_cond_broadcast.c

@@ -1,86 +0,0 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <endian.h>
-#include <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <pthread.h>
-#include <pthreadP.h>
-
-#include <shlib-compat.h>
-#include <kernel-features.h>
-
-
-int
-__pthread_cond_broadcast (cond)
-     pthread_cond_t *cond;
-{
-  /* Make sure we are alone.  */
-  lll_mutex_lock (cond->__data.__lock);
-
-  /* Are there any waiters to be woken?  */
-  if (cond->__data.__total_seq > cond->__data.__wakeup_seq)
-    {
-      /* Yes.  Mark them all as woken.  */
-      cond->__data.__wakeup_seq = cond->__data.__total_seq;
-      cond->__data.__woken_seq = cond->__data.__total_seq;
-      cond->__data.__futex = (unsigned int) cond->__data.__total_seq * 2;
-      int futex_val = cond->__data.__futex;
-      /* Signal that a broadcast happened.  */
-      ++cond->__data.__broadcast_seq;
-
-      /* We are done.  */
-      lll_mutex_unlock (cond->__data.__lock);
-
-      /* Do not use requeue for pshared condvars.  */
-      if (cond->__data.__mutex == (void *) ~0l)
-	goto wake_all;
-
-      /* Wake everybody.  */
-      pthread_mutex_t *mut = (pthread_mutex_t *) cond->__data.__mutex;
-
-      /* XXX: Kernel so far doesn't support requeue to PI futex.  */
-      if (__builtin_expect (mut->__data.__kind & PTHREAD_MUTEX_PRIO_INHERIT_NP,
-			    0))
-	goto wake_all;
-
-      /* lll_futex_requeue returns 0 for success and non-zero
-	 for errors.  */
-      if (__builtin_expect (lll_futex_requeue (&cond->__data.__futex, 1,
-					       INT_MAX, &mut->__data.__lock,
-					       futex_val), 0))
-	{
-	  /* The requeue functionality is not available.  */
-	wake_all:
-	  lll_futex_wake (&cond->__data.__futex, INT_MAX);
-	}
-
-      /* That's all.  */
-      return 0;
-    }
-
-  /* We are done.  */
-  lll_mutex_unlock (cond->__data.__lock);
-
-  return 0;
-}
-
-versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast,
-		  GLIBC_2_3_2);