MySQL  8.0.17
Source Code Documentation
net_ns.h
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1 /*
2  Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
3 
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15  This program is distributed in the hope that it will be useful,
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23 */
24 
25 #ifndef SQL_NET_NS_H_
26 #define SQL_NET_NS_H_
27 
28 #include "my_config.h"
29 
30 #ifdef HAVE_SETNS
31 #include <string>
32 
33 /**
34  Set active network namespace specified by a name.
35 
36  @param network_namespace the name of a network namespace to be set active
37 
38  @return false on success, true on error
39  @note all opened descriptors used during function run are closed on error
40 */
41 bool set_network_namespace(const std::string &network_namespace);
42 
43 /**
44  Restore original network namespace used to be active before a new network
45  namespace has been set.
46 
47  @return false on success, true on failure
48 */
49 bool restore_original_network_namespace();
50 
51 /**
52  Close file descriptors for every opened network namespace file
53  and release a memory used by internal cache of opened network namespaces.
54 */
55 void release_network_namespace_resources();
56 
57 #endif /* HAVE_SETNS */
58 
59 #endif /* SQL_NET_NS_H_ */