htl: Get sem_open/sem_close/sem_unlink support [BZ #25524]

This just moves the existing nptl implementation to reuse as it is in
htl.

1 files changed, 0 insertions, 81 deletions

diff --git a/nptl/sem_close.c b/nptl/sem_close.c
deleted file mode 100644
index 5eea0e1518..0000000000
--- a/nptl/sem_close.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
-   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, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <search.h>
-#include <sys/mman.h>
-#include "semaphoreP.h"
-
-struct walk_closure
-{
-  sem_t *the_sem;
-  struct inuse_sem *rec;
-};
-
-static void
-walker (const void *inodep, VISIT which, void *closure0)
-{
-  struct walk_closure *closure = closure0;
-  struct inuse_sem *nodep = *(struct inuse_sem **) inodep;
-
-  if (nodep->sem == closure->the_sem)
-    closure->rec = nodep;
-}
-
-
-int
-sem_close (sem_t *sem)
-{
-  int result = 0;
-
-  /* Get the lock.  */
-  lll_lock (__sem_mappings_lock, LLL_PRIVATE);
-
-  /* Locate the entry for the mapping the caller provided.  */
-  struct inuse_sem *rec;
-  {
-    struct walk_closure closure = { .the_sem = sem, .rec = NULL };
-    __twalk_r (__sem_mappings, walker, &closure);
-    rec = closure.rec;
-  }
-  if  (rec != NULL)
-    {
-      /* Check the reference counter.  If it is going to be zero, free
-	 all the resources.  */
-      if (--rec->refcnt == 0)
-	{
-	  /* Remove the record from the tree.  */
-	  (void) __tdelete (rec, &__sem_mappings, __sem_search);
-
-	  result = munmap (rec->sem, sizeof (sem_t));
-
-	  free (rec);
-	}
-    }
-  else
-    {
-      /* This is no valid semaphore.  */
-      result = -1;
-      __set_errno (EINVAL);
-    }
-
-  /* Release the lock.  */
-  lll_unlock (__sem_mappings_lock, LLL_PRIVATE);
-
-  return result;
-}