78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/*
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Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights
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reserved.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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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., 51 Franklin St, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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#ifndef NDBMEMCACHE_NDBINSTANCE_H
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#define NDBMEMCACHE_NDBINSTANCE_H
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#ifndef __cplusplus
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#error "This file is for C++ only"
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#endif
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#include <pthread.h>
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#include "NdbApi.hpp"
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#include "ndbmemcache_config.h"
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#include "KeyPrefix.h"
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#include "QueryPlan.h"
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#include "workitem.h"
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#define VPSZ sizeof(void *)
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#define TOTAL_SZ ((3 * VPSZ) + sizeof(int))
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#define PADDING (64 - TOTAL_SZ)
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class NdbInstance {
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public:
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/* Public Methods */
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NdbInstance(Ndb_cluster_connection *, int);
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NdbInstance(Ndb *, workitem *);
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~NdbInstance();
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void link_workitem(workitem *);
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void unlink_workitem(workitem *);
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/* Public Instance Variables */
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int id;
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Ndb *db;
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NdbInstance *next;
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workitem *wqitem;
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bool ndb_owner;
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private:
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char cache_line_padding[PADDING];
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};
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inline void NdbInstance::link_workitem(workitem *item) {
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assert(item->ndb_instance == NULL);
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assert(wqitem == NULL);
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item->ndb_instance = this;
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wqitem = item;
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}
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inline void NdbInstance::unlink_workitem(workitem *item) {
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assert(wqitem == item);
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wqitem->ndb_instance = NULL;
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wqitem = NULL;
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}
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#endif
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