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/* Copyright (C) 2000-2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifdef USE_PRAGMA_IMPLEMENTATION
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#pragma implementation // gcc: Class implementation
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#include <drizzled/item/function/is_used_lock_func.h>
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int64_t Item_func_is_used_lock::val_int()
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String *res=args[0]->val_str(&value);
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if (!res || !res->length())
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pthread_mutex_lock(&LOCK_user_locks);
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ull= (User_level_lock *) hash_search(&hash_user_locks, (uchar*) res->ptr(),
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(size_t) res->length());
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pthread_mutex_unlock(&LOCK_user_locks);
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if (!ull || !ull->locked)
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return ull->thread_id;