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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <plugin/user_locks/module.h>
#include <string>
namespace user_locks {
namespace locks {
int64_t WaitFor::val_int()
{
drizzled::String *res= args[0]->val_str(&value);
if (not res || not res->length())
{
my_error(drizzled::ER_USER_LOCKS_INVALID_NAME_LOCK, MYF(0));
return 0;
}
null_value= false;
drizzled::session_id_t id= getSession().getSessionId();
bool found= false;
while (not found)
{
found= user_locks::Locks::getInstance().isUsed(Key(*getSession().user(), res->c_str()), id);
if (not found)
{
boost::this_thread::restore_interruption dl(getSession().getThreadInterupt());
try {
user_locks::Locks::getInstance().waitCreate();
}
catch(boost::thread_interrupted const& error)
{
my_error(drizzled::ER_QUERY_INTERRUPTED, MYF(0));
null_value= true;
return 0;
}
}
else
{
if (id == getSession().getSessionId())
{
my_error(drizzled::ER_USER_LOCKS_CANT_WAIT_ON_OWN_LOCK, MYF(0));
null_value= true;
return 0;
}
}
}
return id;
}
} /* namespace locks */
} /* namespace user_locks */
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