Drizzled Public API Documentation

kill.cc
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 <config.h>
22 
23 #include <drizzled/session.h>
24 #include <drizzled/session/cache.h>
25 #include <plugin/utility_functions/functions.h>
26 
27 namespace drizzled {
28 namespace utility_functions {
29 
30 int64_t Kill::val_int()
31 {
32  int64_t session_id_for_kill= args[0]->val_int();
33 
34  if (getSession().getSessionId() == session_id_for_kill)
35  {
36  my_error(drizzled::ER_KILL_DENY_SELF_ERROR, MYF(0));
37  return 0;
38  }
39 
40  Session::shared_ptr die_session(session::Cache::find(session_id_for_kill));
41 
42  if (not die_session)
43  {
44  my_error(drizzled::ER_NO_SUCH_THREAD, session_id_for_kill, MYF(0));
45  return 0;
46  }
47 
48  if (not die_session->isViewable(*getSession().user()))
49  {
50  my_error(drizzled::ER_KILL_DENIED_ERROR, session_id_for_kill, MYF(0));
51  return 0;
52  }
53 
54  die_session->awake(arg_count == 2 ? Session::KILL_QUERY : Session::KILL_CONNECTION);
55 
56  return session_id_for_kill;
57 }
58 
59 } /* namespace utility_functions */
60 } /* namespace drizzled */
virtual int64_t val_int()=0