mariadb/myisammrg/myrg_extra.c

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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
it under the terms of the GNU General Public License as published by
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,
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.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Extra functions we want to do with a database
- All flags, exept record-cache-flags, are set in all used databases
record-cache-flags are set in myrg_rrnd when we are changing database.
*/
#include "myrg_def.h"
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int myrg_extra(MYRG_INFO *info,enum ha_extra_function function,
void *extra_arg)
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{
int error,save_error=0;
MYRG_TABLE *file;
DBUG_ENTER("myrg_extra");
DBUG_PRINT("info",("function: %lu", (ulong) function));
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if (function == HA_EXTRA_CACHE)
{
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info->cache_in_use=1;
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info->cache_size= (extra_arg ? *(ulong*) extra_arg :
my_default_record_cache_size);
}
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else
{
if (function == HA_EXTRA_NO_CACHE || function == HA_EXTRA_RESET ||
function == HA_EXTRA_PREPARE_FOR_UPDATE)
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info->cache_in_use=0;
if (function == HA_EXTRA_RESET || function == HA_EXTRA_RESET_STATE)
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{
info->current_table=0;
info->last_used_table=info->open_tables;
}
for (file=info->open_tables ; file != info->end_table ; file++)
{
if ((error=mi_extra(file->table, function, extra_arg)))
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save_error=error;
}
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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)
{
MYRG_TABLE *file;
DBUG_ENTER("myrg_extrafunc");
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for (file=info->open_tables ; file != info->end_table ; file++)
file->table->s->invalidator = inv;
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DBUG_VOID_RETURN;
}