1 files changed, 77 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-key.h b/sysdeps/htl/pt-key.h
new file mode 100644
index 0000000000..893adccd2e
--- /dev/null
+++ b/sysdeps/htl/pt-key.h
@@ -0,0 +1,77 @@
+/* pthread_key internal declatations for the 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 <libc-lockP.h>
+#include <pthreadP.h>
+
+#define PTHREAD_KEY_MEMBERS \
+  void **thread_specifics;		/* This is only resized by the thread, and always growing */ \
+  unsigned thread_specifics_size;	/* Number of entries in thread_specifics */
+
+#define PTHREAD_KEY_INVALID (void *) (-1)
+
+
+/* __PTHREAD_KEY_DESTRUCTORS is an array of destructors with
+   __PTHREAD_KEY_SIZE elements.  If an element with index less than
+   __PTHREAD_KEY_COUNT is invalid, it shall contain the value
+   PTHREAD_KEY_INVALID which shall be distinct from NULL.
+
+   Normally, we just add new keys to the end of the array and realloc
+   it as necessary.  The pthread_key_create routine may decide to
+   rescan the array if __PTHREAD_KEY_FREE is large.  */
+extern void (**__pthread_key_destructors) (void *arg);
+extern int __pthread_key_size;
+extern int __pthread_key_count;
+/* Number of invalid elements in the array.  Does not include elements
+   for which memory has been allocated but which have not yet been
+   used (i.e. those elements with indexes greater than
+   __PTHREAD_KEY_COUNT).  */
+extern int __pthread_key_invalid_count;
+
+/* Protects the above variables.  This must be a recursive lock: the
+   destructors may call pthread_key_delete.  */
+extern pthread_mutex_t __pthread_key_lock;
+
+#include <assert.h>
+
+static inline void
+__pthread_key_lock_ready (void)
+{
+  static pthread_once_t o = PTHREAD_ONCE_INIT;
+
+  void do_init (void)
+  {
+    int err;
+    pthread_mutexattr_t attr;
+
+    err = __pthread_mutexattr_init (&attr);
+    assert_perror (err);
+
+    err = __pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
+    assert_perror (err);
+
+    err = _pthread_mutex_init (&__pthread_key_lock, &attr);
+    assert_perror (err);
+
+    err = __pthread_mutexattr_destroy (&attr);
+    assert_perror (err);
+  }
+
+  __pthread_once (&o, do_init);
+}