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Diffstat (limited to 'nptl/sysdeps/pthread/pthread_cond_wait.c')
-rw-r--r--nptl/sysdeps/pthread/pthread_cond_wait.c191
1 files changed, 0 insertions, 191 deletions
diff --git a/nptl/sysdeps/pthread/pthread_cond_wait.c b/nptl/sysdeps/pthread/pthread_cond_wait.c
deleted file mode 100644
index f5f5cec5a8..0000000000
--- a/nptl/sysdeps/pthread/pthread_cond_wait.c
+++ /dev/null
@@ -1,191 +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>
-
-
-struct _condvar_cleanup_buffer
-{
-  int oldtype;
-  pthread_cond_t *cond;
-  pthread_mutex_t *mutex;
-  unsigned int bc_seq;
-};
-
-
-void
-__attribute__ ((visibility ("hidden")))
-__condvar_cleanup (void *arg)
-{
-  struct _condvar_cleanup_buffer *cbuffer =
-    (struct _condvar_cleanup_buffer *) arg;
-  unsigned int destroying;
-
-  /* We are going to modify shared data.  */
-  lll_mutex_lock (cbuffer->cond->__data.__lock);
-
-  if (cbuffer->bc_seq == cbuffer->cond->__data.__broadcast_seq)
-    {
-      /* This thread is not waiting anymore.  Adjust the sequence counters
-	 appropriately.  We do not increment WAKEUP_SEQ if this would
-	 bump it over the value of TOTAL_SEQ.  This can happen if a thread
-	 was woken and then canceled.  */
-      if (cbuffer->cond->__data.__wakeup_seq
-	  < cbuffer->cond->__data.__total_seq)
-	{
-	  ++cbuffer->cond->__data.__wakeup_seq;
-	  ++cbuffer->cond->__data.__futex;
-	}
-      ++cbuffer->cond->__data.__woken_seq;
-    }
-
-  cbuffer->cond->__data.__nwaiters -= 1 << COND_CLOCK_BITS;
-
-  /* If pthread_cond_destroy was called on this variable already,
-     notify the pthread_cond_destroy caller all waiters have left
-     and it can be successfully destroyed.  */
-  destroying = 0;
-  if (cbuffer->cond->__data.__total_seq == -1ULL
-      && cbuffer->cond->__data.__nwaiters < (1 << COND_CLOCK_BITS))
-    {
-      lll_futex_wake (&cbuffer->cond->__data.__nwaiters, 1);
-      destroying = 1;
-    }
-
-  /* We are done.  */
-  lll_mutex_unlock (cbuffer->cond->__data.__lock);
-
-  /* Wake everybody to make sure no condvar signal gets lost.  */
-  if (! destroying)
-    lll_futex_wake (&cbuffer->cond->__data.__futex, INT_MAX);
-
-  /* Get the mutex before returning unless asynchronous cancellation
-     is in effect.  */
-  __pthread_mutex_cond_lock (cbuffer->mutex);
-}
-
-
-int
-__pthread_cond_wait (cond, mutex)
-     pthread_cond_t *cond;
-     pthread_mutex_t *mutex;
-{
-  struct _pthread_cleanup_buffer buffer;
-  struct _condvar_cleanup_buffer cbuffer;
-  int err;
-
-  /* Make sure we are along.  */
-  lll_mutex_lock (cond->__data.__lock);
-
-  /* Now we can release the mutex.  */
-  err = __pthread_mutex_unlock_usercnt (mutex, 0);
-  if (__builtin_expect (err, 0))
-    {
-      lll_mutex_unlock (cond->__data.__lock);
-      return err;
-    }
-
-  /* We have one new user of the condvar.  */
-  ++cond->__data.__total_seq;
-  ++cond->__data.__futex;
-  cond->__data.__nwaiters += 1 << COND_CLOCK_BITS;
-
-  /* Remember the mutex we are using here.  If there is already a
-     different address store this is a bad user bug.  Do not store
-     anything for pshared condvars.  */
-  if (cond->__data.__mutex != (void *) ~0l)
-    cond->__data.__mutex = mutex;
-
-  /* Prepare structure passed to cancellation handler.  */
-  cbuffer.cond = cond;
-  cbuffer.mutex = mutex;
-
-  /* Before we block we enable cancellation.  Therefore we have to
-     install a cancellation handler.  */
-  __pthread_cleanup_push (&buffer, __condvar_cleanup, &cbuffer);
-
-  /* The current values of the wakeup counter.  The "woken" counter
-     must exceed this value.  */
-  unsigned long long int val;
-  unsigned long long int seq;
-  val = seq = cond->__data.__wakeup_seq;
-  /* Remember the broadcast counter.  */
-  cbuffer.bc_seq = cond->__data.__broadcast_seq;
-
-  do
-    {
-      unsigned int futex_val = cond->__data.__futex;
-
-      /* Prepare to wait.  Release the condvar futex.  */
-      lll_mutex_unlock (cond->__data.__lock);
-
-      /* Enable asynchronous cancellation.  Required by the standard.  */
-      cbuffer.oldtype = __pthread_enable_asynccancel ();
-
-      /* Wait until woken by signal or broadcast.  */
-      lll_futex_wait (&cond->__data.__futex, futex_val);
-
-      /* Disable asynchronous cancellation.  */
-      __pthread_disable_asynccancel (cbuffer.oldtype);
-
-      /* We are going to look at shared data again, so get the lock.  */
-      lll_mutex_lock (cond->__data.__lock);
-
-      /* If a broadcast happened, we are done.  */
-      if (cbuffer.bc_seq != cond->__data.__broadcast_seq)
-	goto bc_out;
-
-      /* Check whether we are eligible for wakeup.  */
-      val = cond->__data.__wakeup_seq;
-    }
-  while (val == seq || cond->__data.__woken_seq == val);
-
-  /* Another thread woken up.  */
-  ++cond->__data.__woken_seq;
-
- bc_out:
-
-  cond->__data.__nwaiters -= 1 << COND_CLOCK_BITS;
-
-  /* If pthread_cond_destroy was called on this varaible already,
-     notify the pthread_cond_destroy caller all waiters have left
-     and it can be successfully destroyed.  */
-  if (cond->__data.__total_seq == -1ULL
-      && cond->__data.__nwaiters < (1 << COND_CLOCK_BITS))
-    lll_futex_wake (&cond->__data.__nwaiters, 1);
-
-  /* We are done with the condvar.  */
-  lll_mutex_unlock (cond->__data.__lock);
-
-  /* The cancellation handling is back to normal, remove the handler.  */
-  __pthread_cleanup_pop (&buffer, 0);
-
-  /* Get the mutex before returning.  */
-  return __pthread_mutex_cond_lock (mutex);
-}
-
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-		  GLIBC_2_3_2);