Drizzled Public API Documentation

is_free_lock.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 #include <plugin/user_locks/module.h>
00023 
00024 #include <string>
00025 
00026 namespace user_locks {
00027 
00028 int64_t IsFreeLock::val_int()
00029 {
00030   drizzled::String *res= args[0]->val_str(&value);
00031 
00032   if (not res || not res->length())
00033   {
00034     my_error(drizzled::ER_USER_LOCKS_INVALID_NAME_LOCK, MYF(0));
00035     return 0;
00036   }
00037   null_value= false;
00038 
00039   drizzled::session_id_t id= getSession().getSessionId();
00040   bool result= user_locks::Locks::getInstance().release(user_locks::Key(*getSession().user(), res->c_str()), id);
00041 
00042   return result ? 1 : 0;
00043 }
00044 
00045 } /* namespace user_locks */