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diff --git a/contrib/libs/libmysql_r/vio/vio_priv.h b/contrib/libs/libmysql_r/vio/vio_priv.h
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+++ b/contrib/libs/libmysql_r/vio/vio_priv.h
@@ -0,0 +1,81 @@
+/* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License, version 2.0,
+   as published by the Free Software Foundation.
+
+   This program is also distributed with certain software (including
+   but not limited to OpenSSL) that is licensed under separate terms,
+   as designated in a particular file or component or in included license
+   documentation.  The authors of MySQL hereby grant you an additional
+   permission to link the program and your derivative works with the
+   separately licensed software that they have included with MySQL.
+
+   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 General Public License, version 2.0, for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#ifndef VIO_PRIV_INCLUDED
+#define VIO_PRIV_INCLUDED
+
+/**
+  @file vio/vio_priv.h
+  Structures and functions private to the vio package
+*/
+
+#define DONT_MAP_VIO
+#include <mysql_com.h>
+
+#include "m_string.h"
+#include "my_sys.h"
+#include "mysql/psi/psi_memory.h"
+#include "violite.h"
+
+extern PSI_memory_key key_memory_vio;
+extern PSI_memory_key key_memory_vio_read_buffer;
+
+#ifdef HAVE_OPENSSL
+extern PSI_memory_key key_memory_vio_ssl_fd;
+#endif
+
+#ifdef HAVE_WOLFSSL
+
+#ifdef ERROR /* check for conflicting ERROR macro from wingdi.h */
+#undef ERROR
+#endif
+#endif
+
+#ifdef _WIN32
+size_t vio_read_pipe(Vio *vio, uchar *buf, size_t size);
+size_t vio_write_pipe(Vio *vio, const uchar *buf, size_t size);
+bool vio_is_connected_pipe(Vio *vio);
+int vio_shutdown_pipe(Vio *vio);
+
+size_t vio_read_shared_memory(Vio *vio, uchar *buf, size_t size);
+size_t vio_write_shared_memory(Vio *vio, const uchar *buf, size_t size);
+bool vio_is_connected_shared_memory(Vio *vio);
+int vio_shutdown_shared_memory(Vio *vio);
+void vio_delete_shared_memory(Vio *vio);
+#endif /* _WIN32 */
+
+bool vio_buff_has_data(Vio *vio);
+int vio_socket_io_wait(Vio *vio, enum enum_vio_io_event event);
+int vio_socket_timeout(Vio *vio, uint which, bool old_mode);
+
+#ifdef HAVE_OPENSSL
+size_t vio_ssl_read(Vio *vio, uchar *buf, size_t size);
+size_t vio_ssl_write(Vio *vio, const uchar *buf, size_t size);
+
+/* When the workday is over... */
+int vio_ssl_shutdown(Vio *vio);
+void vio_ssl_delete(Vio *vio);
+bool vio_ssl_has_data(Vio *vio);
+
+#endif /* HAVE_OPENSSL */
+
+#endif /* VIO_PRIV_INCLUDED */