1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/htl/pt-mutex-destroy.c b/sysdeps/mach/hurd/htl/pt-mutex-destroy.c
new file mode 100644
index 0000000000..89b4916eb6
--- /dev/null
+++ b/sysdeps/mach/hurd/htl/pt-mutex-destroy.c
@@ -0,0 +1,38 @@
+/* pthread_mutex_destroy.  Hurd version.
+   Copyright (C) 2016-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   This program 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.
+
+   This program 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 this program; if not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <pt-internal.h>
+#include "pt-mutex.h"
+#include <hurdlock.h>
+
+int
+_pthread_mutex_destroy (pthread_mutex_t *mtxp)
+{
+  atomic_read_barrier ();
+  if (*(volatile unsigned int *) &mtxp->__lock != 0)
+    return EBUSY;
+
+  mtxp->__type = -1;
+  return 0;
+}
+
+strong_alias (_pthread_mutex_destroy, pthread_mutex_destroy)