Drizzled Public API Documentation

kill.cc
00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2010 Brian Aker
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 
00023 #include <drizzled/session.h>
00024 #include <drizzled/session/cache.h>
00025 #include <plugin/utility_functions/functions.h>
00026 
00027 namespace drizzled
00028 {
00029 
00030 namespace utility_functions
00031 {
00032 
00033 int64_t Kill::val_int()
00034 {
00035   int64_t session_id_for_kill= args[0]->val_int();
00036 
00037   if (getSession().getSessionId() == session_id_for_kill)
00038   {
00039     my_error(drizzled::ER_KILL_DENY_SELF_ERROR, MYF(0));
00040     return 0;
00041   }
00042 
00043   Session::shared_ptr die_session(session::Cache::singleton().find(session_id_for_kill));
00044 
00045   if (not die_session)
00046   {
00047     my_error(drizzled::ER_NO_SUCH_THREAD, session_id_for_kill, MYF(0));
00048     return 0;
00049   }
00050 
00051   if (not die_session->isViewable(*getSession().user()))
00052   {
00053     my_error(drizzled::ER_KILL_DENIED_ERROR, session_id_for_kill, MYF(0));
00054     return 0;
00055   }
00056 
00057   die_session->awake(arg_count == 2 ? Session::KILL_QUERY : Session::KILL_CONNECTION);
00058 
00059   return session_id_for_kill;
00060 }
00061 
00062 } /* namespace utility_functions */
00063 } /* namespace drizzled */