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Viewing changes to plugin/schema_engine/schema.h

  • Committer: Monty Taylor
  • Date: 2010-03-11 18:27:20 UTC
  • mfrom: (1333 staging)
  • mto: This revision was merged to the branch mainline in revision 1348.
  • Revision ID: mordred@inaugust.com-20100311182720-hd1h87y6cb1b1mp0
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plugin/schema_engine/schema.h
 
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 
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 *
 
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 *  Copyright (C) 2010 Brian Aker
 
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 *
 
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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; either version 2 of the License, or
 
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 *  (at your option) any later version.
 
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 *
 
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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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 *
 
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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  02110-1301  USA
 
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 */
 
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#ifndef PLUGIN_SCHEMA_ENGINE_SCHEMA_H
 
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#define PLUGIN_SCHEMA_ENGINE_SCHEMA_H
 
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#include <assert.h>
 
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#include <drizzled/plugin/storage_engine.h>
 
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#include <drizzled/data_home.h>
 
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#include <drizzled/hash.h>
 
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#include <pthread.h>
 
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extern const drizzled::CHARSET_INFO *default_charset_info;
 
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static const char *schema_exts[] = {
 
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  NULL
 
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};
 
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class Schema : public drizzled::plugin::StorageEngine
 
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{
 
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  bool writeSchemaFile(const char *path, const drizzled::message::Schema &db);
 
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  bool readTableFile(const std::string &path, drizzled::message::Table &table_message);
 
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  bool readSchemaFile(const std::string &path, drizzled::message::Schema &schema);
 
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  void prime();
 
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  typedef drizzled::hash_map<std::string, drizzled::message::Schema> SchemaCache;
 
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  SchemaCache schema_cache;
 
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  bool schema_cache_filled;
 
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  pthread_rwlock_t schema_lock;
 
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public:
 
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  Schema();
 
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  ~Schema();
 
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  int doCreateTable(drizzled::Session *,
 
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                    const char *,
 
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                    drizzled::Table&,
 
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                    drizzled::message::Table&)
 
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  {
 
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    return EPERM;
 
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  }
 
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  int doDropTable(drizzled::Session&, const std::string &table_path);
 
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  bool doCanCreateTable(const drizzled::TableIdentifier &identifier);
 
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  drizzled::Cursor *create(drizzled::TableShare &,
 
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                           drizzled::memory::Root *)
 
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  {
 
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    return NULL;
 
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  }
 
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  void doGetSchemaNames(std::set<std::string>& set_of_names);
 
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  bool doGetSchemaDefinition(const std::string &schema_name, drizzled::message::Schema &proto);
 
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  bool doCreateSchema(const drizzled::message::Schema &schema_message);
 
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  bool doAlterSchema(const drizzled::message::Schema &schema_message);
 
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  bool doDropSchema(const std::string &schema_name);
 
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  int doGetTableDefinition(drizzled::Session& session,
 
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                           const char *path,
 
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                           const char *db,
 
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                           const char *table_name,
 
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                           const bool is_tmp,
 
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                           drizzled::message::Table *table_proto);
 
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  void doGetTableNames(drizzled::CachedDirectory &directory,
 
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                       std::string &db_name,
 
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                       std::set<std::string> &set_of_names);
 
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  const char **bas_ext() const 
 
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  {
 
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    return schema_exts;
 
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  }
 
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};
 
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#endif /* PLUGIN_SCHEMA_ENGINE_SCHEMA_H */