Drizzled Public API Documentation

key.h
1 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2010 Brian Aker
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <boost/thread/mutex.hpp>
22 #include <boost/thread/condition_variable.hpp>
23 #include <boost/unordered_map.hpp>
24 #include <boost/unordered/unordered_set.hpp>
25 
26 #include <string>
27 
28 #include <drizzled/session.h>
29 #include <drizzled/util/string.h>
30 
31 #pragma once
32 
33 namespace user_locks {
34 
35 class Key {
37  std::string lock_name;
38  size_t hash_value;
39 
40 public:
41  Key(const drizzled::identifier::User &context_arg, const std::string &lock_name_arg) :
42  context(context_arg),
43  lock_name(lock_name_arg)
44  {
46  hash_value= hasher(context.username() + lock_name_arg);
47  }
48 
49  size_t getHashValue() const
50  {
51  return hash_value;
52  }
53 
54  const std::string &getLockName() const
55  {
56  return lock_name;
57  }
58 
59  const std::string &getUser() const
60  {
61  return context.username();
62  }
63 };
64 
65 bool operator==(Key const& left, Key const& right);
66 
67 std::size_t hash_value(Key const& b);
68 
69 typedef boost::unordered_set<Key> Keys;
70 
71 } /* namespace user_locks */
72