1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-key-delete.c b/sysdeps/htl/pt-key-delete.c
new file mode 100644
index 0000000000..b65e5f1810
--- /dev/null
+++ b/sysdeps/htl/pt-key-delete.c
@@ -0,0 +1,63 @@
+/* pthread_key_delete.  Hurd version.
+   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <pthread.h>
+
+#include <pt-internal.h>
+
+int
+pthread_key_delete (pthread_key_t key)
+{
+  error_t err = 0;
+
+  __pthread_key_lock_ready ();
+
+  __pthread_mutex_lock (&__pthread_key_lock);
+
+  if (key < 0 || key >= __pthread_key_count
+      || __pthread_key_destructors[key] == PTHREAD_KEY_INVALID)
+    err = EINVAL;
+  else
+    {
+      int i;
+
+      __pthread_key_destructors[key] = PTHREAD_KEY_INVALID;
+      __pthread_key_invalid_count++;
+
+      __pthread_rwlock_rdlock (&__pthread_threads_lock);
+      for (i = 0; i < __pthread_num_threads; ++i)
+	{
+	  struct __pthread *t;
+
+	  t = __pthread_threads[i];
+
+	  if (t == NULL)
+	    continue;
+
+	  /* Just remove the key, no need to care whether it was
+	     already there. */
+	  if (key < t->thread_specifics_size)
+	    t->thread_specifics[key] = 0;
+	}
+      __pthread_rwlock_unlock (&__pthread_threads_lock);
+    }
+
+  __pthread_mutex_unlock (&__pthread_key_lock);
+
+  return err;
+}