Drizzled Public API Documentation

dictionary.cc
1 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2011 Andrew Hutchings
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 <config.h>
22 #include <plugin/protocol_dictionary/dictionary.h>
23 #include <drizzled/plugin/listen.h>
24 
25 using namespace drizzled;
26 
27 ProtocolTool::ProtocolTool() :
28  plugin::TableFunction("DATA_DICTIONARY", "PROTOCOL_COUNTERS")
29 {
30  add_field("PROTOCOL");
31  add_field("COUNTER");
32  add_field("VALUE", plugin::TableFunction::NUMBER, 0, false);
33 }
34 
35 ProtocolTool::Generator::Generator(Field **arg) :
36  plugin::TableFunction::Generator(arg)
37 {
38  protocol_it= plugin::Listen::getListenProtocols().begin();
39  protocol= *protocol_it;
40  counter_it= protocol->getListenCounters().begin();
41 }
42 
43 bool ProtocolTool::Generator::populate()
44 {
45  if (protocol_it == plugin::Listen::getListenProtocols().end())
46  return false;
47 
48  protocol= *protocol_it;
49 
50  while (counter_it == protocol->getListenCounters().end())
51  {
52  protocol_it++;
53  if (protocol_it == plugin::Listen::getListenProtocols().end())
54  return false;
55  protocol= *protocol_it;
56  counter_it= protocol->getListenCounters().begin();
57  }
58 
59  fill();
60  counter_it++;
61  return true;
62 }
63 
64 void ProtocolTool::Generator::fill()
65 {
66  protocol= *protocol_it;
67  counter= *counter_it;
68 
69  push(protocol->getName());
70  push(*counter->first);
71  push((uint64_t) *counter->second);
72 }
73 
74 static ProtocolTool *protocols;
75 
76 static int init(drizzled::module::Context &context)
77 {
78  protocols= new ProtocolTool;
79  context.add(protocols);
80  return 0;
81 }
82 
83 DRIZZLE_DECLARE_PLUGIN
84 {
85  DRIZZLE_VERSION_ID,
86  "protocol_dictionary",
87  "1.0",
88  "Andrew Hutchings",
89  N_("Dictionary of protocol counters"),
90  PLUGIN_LICENSE_GPL,
91  init,
92  NULL,
93  NULL
94 }
95 DRIZZLE_DECLARE_PLUGIN_END;
96