~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems

 *

 *  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; version 2 of the License.

 *

 *  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

 */

/**

  @file Cursor.cc

  Handler-calling-functions

*/

#include "config.h"

#include "drizzled/my_hash.h"

#include "drizzled/error.h"

#include "drizzled/gettext.h"

#include "drizzled/probes.h"

#include "drizzled/sql_parse.h"

#include "drizzled/session.h"

#include "drizzled/sql_base.h"

#include "drizzled/replication_services.h"

#include "drizzled/lock.h"

#include "drizzled/item/int.h"

#include "drizzled/item/empty_string.h"

#include "drizzled/field/timestamp.h"

#include "drizzled/plugin/client.h"

#include "drizzled/internal/my_sys.h"

using namespace std;

namespace drizzled

{

KEY_CREATE_INFO default_key_create_info= { HA_KEY_ALG_UNDEF, 0, {NULL,0} };

/* number of entries in storage_engines[] */

uint32_t total_ha= 0;

/* number of storage engines (from storage_engines[]) that support 2pc */

uint32_t total_ha_2pc= 0;

const char *ha_row_type[] = {

  "", "FIXED", "DYNAMIC", "COMPRESSED", "REDUNDANT", "COMPACT", "PAGE", "?","?","?"

};

/**

  Register Cursor error messages for use with my_error().

  @retval

    0           OK

  @retval

    !=0         Error

*/

int ha_init_errors(void)

{

#define SETMSG(nr, msg) errmsgs[(nr) - HA_ERR_FIRST]= (msg)

  const char    **errmsgs;

  /* Allocate a pointer array for the error message strings. */

  /* Zerofill it to avoid uninitialized gaps. */

  if (! (errmsgs= (const char**) malloc(HA_ERR_ERRORS * sizeof(char*))))

    return 1;

  memset(errmsgs, 0, HA_ERR_ERRORS * sizeof(char *));

  /* Set the dedicated error messages. */

  SETMSG(HA_ERR_KEY_NOT_FOUND,          ER(ER_KEY_NOT_FOUND));

  SETMSG(HA_ERR_FOUND_DUPP_KEY,         ER(ER_DUP_KEY));

  SETMSG(HA_ERR_RECORD_CHANGED,         "Update wich is recoverable");

  SETMSG(HA_ERR_WRONG_INDEX,            "Wrong index given to function");

  SETMSG(HA_ERR_CRASHED,                ER(ER_NOT_KEYFILE));

  SETMSG(HA_ERR_WRONG_IN_RECORD,        ER(ER_CRASHED_ON_USAGE));

  SETMSG(HA_ERR_OUT_OF_MEM,             "Table Cursor out of memory");

  SETMSG(HA_ERR_NOT_A_TABLE,            "Incorrect file format '%.64s'");

  SETMSG(HA_ERR_WRONG_COMMAND,          "Command not supported");

  SETMSG(HA_ERR_OLD_FILE,               ER(ER_OLD_KEYFILE));

  SETMSG(HA_ERR_NO_ACTIVE_RECORD,       "No record read in update");

  SETMSG(HA_ERR_RECORD_DELETED,         "Intern record deleted");

  SETMSG(HA_ERR_RECORD_FILE_FULL,       ER(ER_RECORD_FILE_FULL));

  SETMSG(HA_ERR_INDEX_FILE_FULL,        "No more room in index file '%.64s'");

  SETMSG(HA_ERR_END_OF_FILE,            "End in next/prev/first/last");

  SETMSG(HA_ERR_UNSUPPORTED,            ER(ER_ILLEGAL_HA));

  SETMSG(HA_ERR_TO_BIG_ROW,             "Too big row");

  SETMSG(HA_WRONG_CREATE_OPTION,        "Wrong create option");

  SETMSG(HA_ERR_FOUND_DUPP_UNIQUE,      ER(ER_DUP_UNIQUE));

  SETMSG(HA_ERR_UNKNOWN_CHARSET,        "Can't open charset");

  SETMSG(HA_ERR_WRONG_MRG_TABLE_DEF,    ER(ER_WRONG_MRG_TABLE));

  SETMSG(HA_ERR_CRASHED_ON_REPAIR,      ER(ER_CRASHED_ON_REPAIR));

  SETMSG(HA_ERR_CRASHED_ON_USAGE,       ER(ER_CRASHED_ON_USAGE));

  SETMSG(HA_ERR_LOCK_WAIT_TIMEOUT,      ER(ER_LOCK_WAIT_TIMEOUT));

  SETMSG(HA_ERR_LOCK_TABLE_FULL,        ER(ER_LOCK_TABLE_FULL));

  SETMSG(HA_ERR_READ_ONLY_TRANSACTION,  ER(ER_READ_ONLY_TRANSACTION));

  SETMSG(HA_ERR_LOCK_DEADLOCK,          ER(ER_LOCK_DEADLOCK));

  SETMSG(HA_ERR_CANNOT_ADD_FOREIGN,     ER(ER_CANNOT_ADD_FOREIGN));

  SETMSG(HA_ERR_NO_REFERENCED_ROW,      ER(ER_NO_REFERENCED_ROW_2));

  SETMSG(HA_ERR_ROW_IS_REFERENCED,      ER(ER_ROW_IS_REFERENCED_2));

  SETMSG(HA_ERR_NO_SAVEPOINT,           "No savepoint with that name");

  SETMSG(HA_ERR_NON_UNIQUE_BLOCK_SIZE,  "Non unique key block size");

  SETMSG(HA_ERR_NO_SUCH_TABLE,          "No such table: '%.64s'");

  SETMSG(HA_ERR_TABLE_EXIST,            ER(ER_TABLE_EXISTS_ERROR));

  SETMSG(HA_ERR_NO_CONNECTION,          "Could not connect to storage engine");

  SETMSG(HA_ERR_TABLE_DEF_CHANGED,      ER(ER_TABLE_DEF_CHANGED));

  SETMSG(HA_ERR_FOREIGN_DUPLICATE_KEY,  "FK constraint would lead to duplicate key");

  SETMSG(HA_ERR_TABLE_NEEDS_UPGRADE,    ER(ER_TABLE_NEEDS_UPGRADE));

  SETMSG(HA_ERR_TABLE_READONLY,         ER(ER_OPEN_AS_READONLY));

  SETMSG(HA_ERR_AUTOINC_READ_FAILED,    ER(ER_AUTOINC_READ_FAILED));

  SETMSG(HA_ERR_AUTOINC_ERANGE,         ER(ER_WARN_DATA_OUT_OF_RANGE));

  /* Register the error messages for use with my_error(). */

  return my_error_register(errmsgs, HA_ERR_FIRST, HA_ERR_LAST);

}

/**

  Unregister Cursor error messages.

  @retval

    0           OK

  @retval

    !=0         Error

*/

static int ha_finish_errors(void)

{

  const char    **errmsgs;

  /* Allocate a pointer array for the error message strings. */

  if (! (errmsgs= my_error_unregister(HA_ERR_FIRST, HA_ERR_LAST)))

    return 1;

  free((unsigned char*) errmsgs);

  return 0;

}

int ha_init()

{

  int error= 0;

  assert(total_ha < MAX_HA);

  return error;

}

int ha_end()

{

  int error= 0;

  /*

    This should be eventualy based  on the graceful shutdown flag.

    So if flag is equal to HA_PANIC_CLOSE, the deallocate

    the errors.

  */

  if (ha_finish_errors())

    error= 1;

  return error;

}

} /* namespace drizzled */