Drizzled Public API Documentation

create_barrier.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 #include <plugin/user_locks/barrier_storage.h>
00024 
00025 #include <string>
00026 
00027 namespace user_locks {
00028 namespace barriers {
00029 
00030 int64_t CreateBarrier::val_int()
00031 {
00032   drizzled::String *res= args[0]->val_str(&value);
00033 
00034   if (not res || not res->length())
00035   {
00036     my_error(drizzled::ER_USER_LOCKS_INVALID_NAME_BARRIER, MYF(0));
00037     return 0;
00038   }
00039   null_value= false;
00040 
00041   barriers::Storable *list= static_cast<barriers::Storable *>(getSession().getProperty(barriers::property_key));
00042 
00043   bool result;
00044 
00045   drizzled::identifier::User::const_shared_ptr user_identifier(getSession().user());
00046   if (arg_count == 2)
00047   {
00048     int64_t wait_for;
00049     wait_for= args[1]->val_int();
00050 
00051     result= Barriers::getInstance().create(Key(*user_identifier, res->c_str()), getSession().getSessionId(), wait_for);
00052   }
00053   else
00054   {
00055     result= Barriers::getInstance().create(Key(*user_identifier, res->c_str()), getSession().getSessionId());
00056   }
00057 
00058 
00059   if (result)
00060   {
00061     if (not list)
00062     {
00063       list= new barriers::Storable(getSession().getSessionId());
00064       getSession().setProperty(barriers::property_key, list);
00065     }
00066 
00067     list->insert(Key(*user_identifier, res->c_str()));
00068 
00069     return 1;
00070   }
00071 
00072   return 0;
00073 }
00074 
00075 } /* namespace barriers */
00076 } /* namespace user_locks */