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97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* Copyright (c) 2000-2003, 2005-2007 MySQL AB, 2009 Sun Microsystems, Inc.
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Use is subject to license terms.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/*
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Extra functions we want to do with a database
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- All flags, exept record-cache-flags, are set in all used databases
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record-cache-flags are set in myrg_rrnd when we are changing database.
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*/
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#include "myrg_def.h"
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int myrg_extra(MYRG_INFO *info,enum ha_extra_function function,
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void *extra_arg)
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{
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int error,save_error=0;
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MYRG_TABLE *file;
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DBUG_ENTER("myrg_extra");
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DBUG_PRINT("info",("function: %lu", (ulong) function));
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if (!info->children_attached)
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DBUG_RETURN(0);
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if (function == HA_EXTRA_CACHE)
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{
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info->cache_in_use=1;
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info->cache_size= (extra_arg ? *(ulong*) extra_arg :
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my_default_record_cache_size);
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}
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else
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{
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if (function == HA_EXTRA_NO_CACHE ||
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function == HA_EXTRA_PREPARE_FOR_UPDATE)
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info->cache_in_use=0;
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if (function == HA_EXTRA_RESET_STATE)
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{
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info->current_table=0;
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info->last_used_table=info->open_tables;
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}
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for (file=info->open_tables ; file != info->end_table ; file++)
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{
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if ((error=mi_extra(file->table, function, extra_arg)))
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save_error=error;
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}
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}
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DBUG_RETURN(save_error);
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}
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void myrg_extrafunc(MYRG_INFO *info, invalidator_by_filename inv)
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{
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MYRG_TABLE *file;
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DBUG_ENTER("myrg_extrafunc");
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for (file=info->open_tables ; file != info->end_table ; file++)
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file->table->s->invalidator = inv;
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DBUG_VOID_RETURN;
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}
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int myrg_reset(MYRG_INFO *info)
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{
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int save_error= 0;
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MYRG_TABLE *file;
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DBUG_ENTER("myrg_reset");
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info->cache_in_use=0;
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info->current_table=0;
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info->last_used_table= info->open_tables;
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/*
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This is normally called with detached children.
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Return OK as this is the normal case.
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*/
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if (!info->children_attached)
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DBUG_RETURN(0);
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for (file=info->open_tables ; file != info->end_table ; file++)
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{
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int error;
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if ((error= mi_reset(file->table)))
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save_error=error;
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}
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DBUG_RETURN(save_error);
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}
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