1// -*- C++ -*-
2
3// Copyright (C) 2005 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library 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 along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
31
32// Permission to use, copy, modify, sell, and distribute this software
33// is hereby granted without fee, provided that the above copyright
34// notice appears in all copies, and that both that copyright notice and
35// this permission notice appear in supporting documentation. None of
36// the above authors, nor IBM Haifa Research Laboratories, make any
37// representation about the suitability of this software for any
38// purpose. It is provided "as is" without express or implied warranty.
39
40/**
41 * @file mapping_level_example.cpp
42 * A basic example showing how to use different mapping levels.
43 */
44
45// For cout, endl.
46#include <iostream>
47// For various associative containers.
48#include <ext/pb_assoc/assoc_cntnr.hpp>
49// For compound_data_type.
50#include <ext/pb_assoc/data_type.hpp>
51// For sting.
52#include <string>
53// For assert.
54#include <cassert>
55// For unary_function.
56#include <functional>
57
58typedef std::string user_name;
59
60typedef unsigned long machine_id;
61
62typedef std::string process_name;
63
64typedef float running_time;
65
66typedef
67pb_assoc::lu_assoc_cntnr<
68  process_name,
69  running_time>
70pr_name_rn_time_map;
71
72typedef
73pb_assoc::lu_assoc_cntnr<
74  machine_id,
75  pb_assoc::compound_data_type<
76  pr_name_rn_time_map> >
77machine_pr_map;
78
79typedef
80pb_assoc::lu_assoc_cntnr<
81  user_name,
82  pb_assoc::compound_data_type<
83  machine_pr_map> >
84user_machine_pr_map;
85
86typedef user_machine_pr_map::rebind<2>::other l2_t;
87
88typedef user_machine_pr_map::rebind<1>::other l1_t;
89
90struct is_same_proc : public std::unary_function<
91  l1_t::iterator::const_reference,
92		      bool>
93{
94  is_same_proc(const process_name& r_proc) : m_proc(r_proc)
95  {
96
97  };
98
99  bool
100  operator()(l1_t::iterator::const_reference r_val)
101  {
102    return (r_val.first.second == m_proc);
103  }
104
105private:
106  process_name m_proc;
107};
108
109int main()
110{
111  user_machine_pr_map m;
112
113  /**
114   * Following shows different ways to insert into a user_machine_pr_map object.
115   **/
116
117  // Josh launches on machine 1 firefox at time 1000.
118
119  m["Josh"][1]["firefox"] = 1000;
120
121  // Ben launches on machine 1 python at time 1003.
122  ((l1_t& )m)[std::make_pair(
123			     std::make_pair("Ben", 1),
124			     "python")] = 1003;
125
126  // Josh launches on machine 2 buggy at time 1004.
127
128  m.find("Josh")->second[2]["buggy"] = 1004;
129
130  // Sarah launches on machine 3 kdevelop at time 1010.
131
132  m["Sarah"][2].insert(std::make_pair("kdevelop", 1010));
133
134  // Iterate over all users running applications.
135
136  {
137    std::cout << "All users running applications:" << std::endl;
138
139    user_machine_pr_map::const_iterator it = m.begin();
140
141    while (it != m.end())
142      std::cout << (it++)->first << std::endl;
143  }
144
145  // Sarah has terminated kdevelop
146  ((l1_t& )m).erase(std::make_pair(
147				   std::make_pair("Sarah", 2),
148				   "kdevelop"));
149}
150
151