net_ns.h

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/*
   Copyright (c) 2019, 2025, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   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
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   the program or referenced in the documentation.
 
   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
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*/
 
#ifndef SQL_NET_NS_H_
#define SQL_NET_NS_H_
 
#include "my_config.h"
 
#ifdef HAVE_SETNS
#include <string>
 
/**
  Set active network namespace specified by a name.
 
  @param network_namespace  the name of a network namespace to be set active
 
  @return false on success, true on error
  @note all opened descriptors used during function run are closed on error
*/
bool set_network_namespace(const std::string &network_namespace);
 
/**
  Restore original network namespace used to be active before a new network
  namespace has been set.
 
  @return false on success, true on failure
*/
bool restore_original_network_namespace();
 
/**
  Close file descriptors for every opened network namespace file
  and release a memory used by internal cache of opened network namespaces.
*/
void release_network_namespace_resources();
 
#endif /* HAVE_SETNS */
 
#endif /* SQL_NET_NS_H_ */